Pub Date : 2024-11-22DOI: 10.1007/s11547-024-01930-8
Marijan Pušeljić, Vanessa Stadlbauer, Nigar Ahmadova, Maximilian Pohl, Michaela Kopetzky, Ann-Katrin Kaufmann-Bühler, Nikolaus Watzinger, Jasminka Igrec, Michael Fuchsjäger, Emina Talakić
Purpose: To evaluate the correlation between ectopic adipose tissue and iron overload severity in patients with hemochromatosis.
Material and methods: A retrospective cohort of 52 patients who underwent liver iron concentration quantification from January 2015 to October 2023 using a 3.0T MRI scanner. R2* relaxation times and proton density fat fraction (PDFF) were assessed for the entire liver volume and a specific region of interest (ROI) placed in the right lobe. Total body fat (TF), subcutaneous fat (SCF), intermuscular fat (IMF), and visceral fat (VSF) percentages were calculated from a single axial slice at the level of the third lumbar vertebra. Additionally, ratios of IMF-to-VSF, IMF-to-SCF, and SCF-to-VSF were calculated. Standard iron laboratory parameters were collected at least one month prior to MRI. Pearson correlation coefficient was used for correlation analysis.
Results: The mean age of participants was 53.9 ± 19.6 years. IMF positively correlated with R2* values in the ROI (p = 0.005, rs = 0.382) and entire liver (p = 0.016, rs = 0.332). Conversely, VSF negatively correlated with R2* values from the ROI (p = < 0.001, rs = - 0.488) and entire liver (p = < 0.001, rs = - 0.459). Positive correlations were also found between IMF-to-VSF and R2* of the ROI (p = 0.003, rs = 0.400) and whole liver (p = 0.008, rs = 0.364). Ferritin levels positively correlated with R2* values calculated from ROI (p = 0.002, rs = 0.417) and whole liver volume (p = 0.004, rs = 0.397). A positive correlation was noted between PDFF of the entire liver and TF (p = 0.024, rs = 0.313).
Conclusion: The percentage of Intermuscular and visceral adipose tissues correlates with the severity of liver iron overload in hemochromatosis patients.
{"title":"Impact of body fat composition on liver iron overload severity in hemochromatosis: a retrospective MRI analysis.","authors":"Marijan Pušeljić, Vanessa Stadlbauer, Nigar Ahmadova, Maximilian Pohl, Michaela Kopetzky, Ann-Katrin Kaufmann-Bühler, Nikolaus Watzinger, Jasminka Igrec, Michael Fuchsjäger, Emina Talakić","doi":"10.1007/s11547-024-01930-8","DOIUrl":"https://doi.org/10.1007/s11547-024-01930-8","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the correlation between ectopic adipose tissue and iron overload severity in patients with hemochromatosis.</p><p><strong>Material and methods: </strong>A retrospective cohort of 52 patients who underwent liver iron concentration quantification from January 2015 to October 2023 using a 3.0T MRI scanner. R2* relaxation times and proton density fat fraction (PDFF) were assessed for the entire liver volume and a specific region of interest (ROI) placed in the right lobe. Total body fat (TF), subcutaneous fat (SCF), intermuscular fat (IMF), and visceral fat (VSF) percentages were calculated from a single axial slice at the level of the third lumbar vertebra. Additionally, ratios of IMF-to-VSF, IMF-to-SCF, and SCF-to-VSF were calculated. Standard iron laboratory parameters were collected at least one month prior to MRI. Pearson correlation coefficient was used for correlation analysis.</p><p><strong>Results: </strong>The mean age of participants was 53.9 ± 19.6 years. IMF positively correlated with R2* values in the ROI (p = 0.005, r<sub>s</sub> = 0.382) and entire liver (p = 0.016, r<sub>s</sub> = 0.332). Conversely, VSF negatively correlated with R2* values from the ROI (p = < 0.001, r<sub>s</sub> = - 0.488) and entire liver (p = < 0.001, r<sub>s</sub> = - 0.459). Positive correlations were also found between IMF-to-VSF and R2* of the ROI (p = 0.003, r<sub>s</sub> = 0.400) and whole liver (p = 0.008, r<sub>s</sub> = 0.364). Ferritin levels positively correlated with R2* values calculated from ROI (p = 0.002, r<sub>s</sub> = 0.417) and whole liver volume (p = 0.004, r<sub>s</sub> = 0.397). A positive correlation was noted between PDFF of the entire liver and TF (p = 0.024, rs = 0.313).</p><p><strong>Conclusion: </strong>The percentage of Intermuscular and visceral adipose tissues correlates with the severity of liver iron overload in hemochromatosis patients.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142693482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-22DOI: 10.1007/s11547-024-01934-4
Mingchen Jiang, Yiyao Sun, Chunna Yang, Zekun Wang, Ming Xie, Yan Wang, Dan Zhao, Yuqi Ding, Yan Zhang, Jie Liu, Huanhuan Chen, Xiran Jiang
Background: Early and accurate identification of the metastatic tumor types of brain metastasis (BM) is essential for appropriate treatment and management.
Methods: A total of 450 patients were enrolled from two centers as a primary cohort who carry 764 BMs originated from non-small cell lung cancer (NSCLC, patient = 173, lesion = 187), small cell lung cancer (SCLC, patient = 84, lesion = 196), breast cancer (BC, patient = 119, lesion = 200), and gastrointestinal cancer (GIC, patient = 74, lesion = 181). A third center enrolled 28 patients who carry 67 BMs (NSCLC = 24, SCLC = 22, BC = 10, and GIC = 11) to form an external test cohort. All patients received contrast-enhanced T1-weighted (T1CE) and T2-weighted (T2W) MRI scans at 3.0 T before treatment. Radiomics features were calculated from BM and brain-to-tumor interface (BTI) region in the MRI image and screened using least absolute shrinkage and selection operator (LASSO) to construct the radiomics signature (RS). Volume of peritumor edema (VPE) was calculated and combined with RS to create a joint model. Performance of the models was assessed by receiver operating characteristic (ROC).
Results: The BTI-based RS showed better performance compared to BM-based RS. The combined models integrating BTI features and VPE can improve identification performance in AUCs in the training (LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.803 vs. 0.949 vs. 0.918), internal validation (LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.717 vs. 0.854 vs. 0.840), and external test (LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.744 vs. 0.839 vs. 0.800) cohorts.
Conclusion: This study indicated that BTI-based radiomics features and VPE are associated with the metastatic tumor types of BM.
背景:早期准确识别脑转移瘤(BM)的转移瘤类型对适当的治疗至关重要:早期准确识别脑转移瘤(BM)的转移瘤类型对于适当的治疗和管理至关重要:方法:两个中心共招募了 450 名患者作为主要队列,他们携带的 764 个脑转移瘤分别来自非小细胞肺癌(NSCLC,患者 = 173,病灶 = 187)、小细胞肺癌(SCLC,患者 = 84,病灶 = 196)、乳腺癌(BC,患者 = 119,病灶 = 200)和胃肠道癌(GIC,患者 = 74,病灶 = 181)。第三个中心招募了28名携带67个BM的患者(NSCLC=24人,SCLC=22人,BC=10人,GIC=11人)组成外部测试队列。所有患者在治疗前都接受了3.0 T对比增强T1加权(T1CE)和T2加权(T2W)磁共振成像扫描。根据核磁共振成像中的BM和脑-肿瘤界面(BTI)区域计算放射组学特征,并使用最小绝对收缩和选择算子(LASSO)进行筛选,以构建放射组学特征(RS)。计算瘤周水肿体积(VPE)并将其与 RS 结合以创建联合模型。通过接收者操作特征(ROC)评估模型的性能:结果:与基于BM的RS相比,基于BTI的RS显示出更好的性能。在训练(LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.803 vs. 0.949 vs. 0.918)、内部验证(LC/NLC vs. SCLC/NSCLC vs. BC/GIC,0.717 vs. 0.854 vs. 0.840)和外部测试(LC/NLC vs. SCLC/NSCLC vs. BC/GIC,0.744 vs. 0.839 vs. 0.800)队列的 AUC:该研究表明,基于 BTI 的放射组学特征和 VPE 与 BM 的转移性肿瘤类型相关。
{"title":"Radiomics based on brain-to-tumor interface enables prediction of metastatic tumor type of brain metastasis: a proof-of-concept study.","authors":"Mingchen Jiang, Yiyao Sun, Chunna Yang, Zekun Wang, Ming Xie, Yan Wang, Dan Zhao, Yuqi Ding, Yan Zhang, Jie Liu, Huanhuan Chen, Xiran Jiang","doi":"10.1007/s11547-024-01934-4","DOIUrl":"https://doi.org/10.1007/s11547-024-01934-4","url":null,"abstract":"<p><strong>Background: </strong>Early and accurate identification of the metastatic tumor types of brain metastasis (BM) is essential for appropriate treatment and management.</p><p><strong>Methods: </strong>A total of 450 patients were enrolled from two centers as a primary cohort who carry 764 BMs originated from non-small cell lung cancer (NSCLC, patient = 173, lesion = 187), small cell lung cancer (SCLC, patient = 84, lesion = 196), breast cancer (BC, patient = 119, lesion = 200), and gastrointestinal cancer (GIC, patient = 74, lesion = 181). A third center enrolled 28 patients who carry 67 BMs (NSCLC = 24, SCLC = 22, BC = 10, and GIC = 11) to form an external test cohort. All patients received contrast-enhanced T1-weighted (T1CE) and T2-weighted (T2W) MRI scans at 3.0 T before treatment. Radiomics features were calculated from BM and brain-to-tumor interface (BTI) region in the MRI image and screened using least absolute shrinkage and selection operator (LASSO) to construct the radiomics signature (RS). Volume of peritumor edema (VPE) was calculated and combined with RS to create a joint model. Performance of the models was assessed by receiver operating characteristic (ROC).</p><p><strong>Results: </strong>The BTI-based RS showed better performance compared to BM-based RS. The combined models integrating BTI features and VPE can improve identification performance in AUCs in the training (LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.803 vs. 0.949 vs. 0.918), internal validation (LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.717 vs. 0.854 vs. 0.840), and external test (LC/NLC vs. SCLC/NSCLC vs. BC/GIC, 0.744 vs. 0.839 vs. 0.800) cohorts.</p><p><strong>Conclusion: </strong>This study indicated that BTI-based radiomics features and VPE are associated with the metastatic tumor types of BM.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142688600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-21DOI: 10.1007/s11547-024-01932-6
Geanina-Mirela Catona, Loredana G Marcu
Verifying patients' position and internal anatomical changes are important steps in the radiotherapy of rectal cancer. Cone Beam Computed Tomography (CBCT) is an advanced imaging method that allows for the quantification of these modifications, ensuring the delivery of radiation dose to the tumor volume, while protecting surrounding organs at risk. The aim of this review is to discuss and analyze the benefits offered by this method of imaging on board the linear accelerator. In view of this, a systematic search of the scientific literature in the Medline/PubMed database was performed for publications over the last decade, with 20 articles found to be relevant for this study. To highlight the benefits of this imaging technique in rectal cancer, the frequency of CBCT use, identification of tumor volume and organs at risk on CBCT images, quantification of the movement of these organs and tumor volume, analysis of positioning errors as well as evaluation of dosimetric parameters were analyzed.
{"title":"Qualitative and quantitative evaluation of the role of CBCT in rectal cancer radiotherapy.","authors":"Geanina-Mirela Catona, Loredana G Marcu","doi":"10.1007/s11547-024-01932-6","DOIUrl":"https://doi.org/10.1007/s11547-024-01932-6","url":null,"abstract":"<p><p>Verifying patients' position and internal anatomical changes are important steps in the radiotherapy of rectal cancer. Cone Beam Computed Tomography (CBCT) is an advanced imaging method that allows for the quantification of these modifications, ensuring the delivery of radiation dose to the tumor volume, while protecting surrounding organs at risk. The aim of this review is to discuss and analyze the benefits offered by this method of imaging on board the linear accelerator. In view of this, a systematic search of the scientific literature in the Medline/PubMed database was performed for publications over the last decade, with 20 articles found to be relevant for this study. To highlight the benefits of this imaging technique in rectal cancer, the frequency of CBCT use, identification of tumor volume and organs at risk on CBCT images, quantification of the movement of these organs and tumor volume, analysis of positioning errors as well as evaluation of dosimetric parameters were analyzed.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142688599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Objective: This study aimed to investigate the integration of dual-energy CT (DECT) into CT-guided bone biopsy procedures, comparing it with conventional CT techniques. The focus was on technical aspects, accuracy and radiation dose exposure.
Materials and methods: A total of 51 bone biopsies were conducted, with 36 using conventional CT and 15 utilizing DECT. Patient data, lesion characteristics and biopsy techniques were analyzed. Statistical analyses, including Fisher's exact test and independent samples t-test, were performed to compare accuracy and radiation doses between the two methods.
Results: DECT-guided biopsies demonstrated a significantly higher accuracy (93.33%) compared to conventional CT biopsies (86.11%). The radiation dose exposure for DECT was comparable to conventional CT. DECT's ability to differentiate tissues, especially in bone marrow edema detection, led to higher precision.
Conclusion: Integrating DECT into CT-guided bone biopsies enhances tissue differentiation and accuracy without significantly increasing radiation exposure. This advancement holds promise for improving musculoskeletal interventional radiology, leading to more precise diagnoses, informed treatment decisions and improved patient outcomes.
{"title":"Advancing precision in CT-guided bone biopsies: exploring the potential of dual-energy CT imaging.","authors":"Enrico Boninsegna, Enrico Piovan, Carlo Sozzi, Emilio Simonini, Giacomo Aringhieri, Dania Cioni, Emanuele Neri","doi":"10.1007/s11547-024-01935-3","DOIUrl":"https://doi.org/10.1007/s11547-024-01935-3","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to investigate the integration of dual-energy CT (DECT) into CT-guided bone biopsy procedures, comparing it with conventional CT techniques. The focus was on technical aspects, accuracy and radiation dose exposure.</p><p><strong>Materials and methods: </strong>A total of 51 bone biopsies were conducted, with 36 using conventional CT and 15 utilizing DECT. Patient data, lesion characteristics and biopsy techniques were analyzed. Statistical analyses, including Fisher's exact test and independent samples t-test, were performed to compare accuracy and radiation doses between the two methods.</p><p><strong>Results: </strong>DECT-guided biopsies demonstrated a significantly higher accuracy (93.33%) compared to conventional CT biopsies (86.11%). The radiation dose exposure for DECT was comparable to conventional CT. DECT's ability to differentiate tissues, especially in bone marrow edema detection, led to higher precision.</p><p><strong>Conclusion: </strong>Integrating DECT into CT-guided bone biopsies enhances tissue differentiation and accuracy without significantly increasing radiation exposure. This advancement holds promise for improving musculoskeletal interventional radiology, leading to more precise diagnoses, informed treatment decisions and improved patient outcomes.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142688598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-21DOI: 10.1007/s11547-024-01901-z
Alexander James Nicol, Sai-Kit Lam, Jerry Chi Fung Ching, Victor Chi Wing Tam, Xinzhi Teng, Jiang Zhang, Francis Kar Ho Lee, Kenneth C W Wong, Jing Cai, Shara Wee Yee Lee
Purpose: Oral mucositis (OM) is one of the most prevalent and crippling treatment-related toxicities experienced by nasopharyngeal carcinoma (NPC) patients receiving radiotherapy (RT), posing a tremendous adverse impact on quality of life. This multi-center study aimed to develop and externally validate a multi-omic prediction model for severe OM.
Methods: Four hundred and sixty-four histologically confirmed NPC patients were retrospectively recruited from two public hospitals in Hong Kong. Model development was conducted on one institution (n = 363), and the other was reserved for external validation (n = 101). Severe OM was defined as the occurrence of CTCAE grade 3 or higher OM during RT. Two predictive models were constructed: 1) conventional clinical and DVH features and 2) a multi-omic approach including clinical, radiomic and dosiomic features.
Results: The multi-omic model, consisting of chemotherapy status and radiomic and dosiomic features, outperformed the conventional model in internal and external validation, achieving AUC scores of 0.67 [95% CI: (0.61, 0.73)] and 0.65 [95% CI: (0.53, 0.77)], respectively, compared to the conventional model with 0.63 [95% CI: (0.56, 0.69)] and 0.56 [95% CI: (0.44, 0.67)], respectively. In multivariate analysis, only the multi-omic model signature was significantly correlated with severe OM in external validation (p = 0.017), demonstrating the independent predictive value of the multi-omic approach.
Conclusion: A multi-omic model with combined clinical, radiomic and dosiomic features achieved superior pre-treatment prediction of severe OM. Further exploration is warranted to facilitate improved clinical decision-making and enable more effective and personalized care for the prevention and management of OM in NPC patients.
{"title":"A multi-center, multi-organ, multi-omic prediction model for treatment-induced severe oral mucositis in nasopharyngeal carcinoma.","authors":"Alexander James Nicol, Sai-Kit Lam, Jerry Chi Fung Ching, Victor Chi Wing Tam, Xinzhi Teng, Jiang Zhang, Francis Kar Ho Lee, Kenneth C W Wong, Jing Cai, Shara Wee Yee Lee","doi":"10.1007/s11547-024-01901-z","DOIUrl":"https://doi.org/10.1007/s11547-024-01901-z","url":null,"abstract":"<p><strong>Purpose: </strong>Oral mucositis (OM) is one of the most prevalent and crippling treatment-related toxicities experienced by nasopharyngeal carcinoma (NPC) patients receiving radiotherapy (RT), posing a tremendous adverse impact on quality of life. This multi-center study aimed to develop and externally validate a multi-omic prediction model for severe OM.</p><p><strong>Methods: </strong>Four hundred and sixty-four histologically confirmed NPC patients were retrospectively recruited from two public hospitals in Hong Kong. Model development was conducted on one institution (n = 363), and the other was reserved for external validation (n = 101). Severe OM was defined as the occurrence of CTCAE grade 3 or higher OM during RT. Two predictive models were constructed: 1) conventional clinical and DVH features and 2) a multi-omic approach including clinical, radiomic and dosiomic features.</p><p><strong>Results: </strong>The multi-omic model, consisting of chemotherapy status and radiomic and dosiomic features, outperformed the conventional model in internal and external validation, achieving AUC scores of 0.67 [95% CI: (0.61, 0.73)] and 0.65 [95% CI: (0.53, 0.77)], respectively, compared to the conventional model with 0.63 [95% CI: (0.56, 0.69)] and 0.56 [95% CI: (0.44, 0.67)], respectively. In multivariate analysis, only the multi-omic model signature was significantly correlated with severe OM in external validation (p = 0.017), demonstrating the independent predictive value of the multi-omic approach.</p><p><strong>Conclusion: </strong>A multi-omic model with combined clinical, radiomic and dosiomic features achieved superior pre-treatment prediction of severe OM. Further exploration is warranted to facilitate improved clinical decision-making and enable more effective and personalized care for the prevention and management of OM in NPC patients.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142682595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: To develop a combined approach using shear wave elastography (SWE) and conventional ultrasound (US) to determine the extent of positive axillary lymph nodes (LNs) following neoadjuvant therapy (NAT) in breast cancer patients with nodal involvement.
Methods: This prospective, multicenter study was registered on the Chinese Clinical Trial Registry (ChiCTR2400085035). From October 2018 to February 2024, a total of 303 breast cancer patients with biopsy-proven positive LN were enrolled. The conventional US features of axillary LNs and SWE characteristics of breast lesions after NAT were analyzed. The diagnostic performances of axilla US, breast SWE, and their combination in detecting residual metastasis in axillary level III after NAT were assessed.
Results: Pathologically positive LN(s) in axilla level III were detected in 13.75% of cases following NAT. The kappa value for the axilla level with positive LN confirmed by surgical pathology and detected by US is 0.39 (p < 0.001). The AUC of conventional axilla US to determine the status of axilla level III LNs after NAT was 0.67, with a sensitivity of 51.52%, a specificity of 74.36%. The breast SWE displayed moderate performance for detecting residual metastasis in axilla level III following NAT, with an AUC of 0.79, sensitivity of 84.85%, and specificity of 74.36%. Compared to axilla US and breast SWE alone, the combination of axilla US with breast SWE achieved a stronger discriminatory ability (AUC, 0.86 vs 0.67 vs 0.79, p < 0.05, Delong's test) and precise calibration (X2 = 13.90, p = 0.085, HL test), with an improved sensitivity of 93.94% and a comparable specificity of 75.64%%.
Conclusions: SWE outperformed conventional US in identifying the axilla levels with nodal metastasis following NAT in patients with initially diagnosed positive axilla. Furthermore, combining breast SWE with axilla US showed good diagnostic performance for detecting residual metastasis in axilla level III after NAT.
目的:开发一种剪切波弹性成像(SWE)和传统超声(US)相结合的方法,用于确定结节受累的乳腺癌患者接受新辅助治疗(NAT)后腋窝淋巴结(LN)阳性的范围:这项前瞻性多中心研究在中国临床试验注册中心注册(ChiCTR2400085035)。自2018年10月至2024年2月,共入组303例经活检证实LN阳性的乳腺癌患者。分析了腋窝LN的常规US特征和NAT后乳腺病变的SWE特征。评估了腋窝 US、乳腺 SWE 及其组合在检测 NAT 后腋窝 III 级残余转移方面的诊断性能:结果:13.75%的病例在 NAT 后检测到腋窝 III 层病理阳性 LN。经手术病理证实并由 US 检测出 LN 阳性的腋窝水平的 kappa 值为 0.39(P 2 = 13.90,P = 0.085,HL 检验),敏感性提高了 93.94%,特异性为 75.64%%:对于初步诊断为腋窝阳性的患者,SWE 在确定 NAT 后有结节转移的腋窝水平方面优于传统 US。此外,将乳腺SWE与腋窝X线检查相结合,在检测NAT后腋窝III度残余转移方面显示出良好的诊断性能。
{"title":"Enhancing detection of high-level axillary lymph node metastasis after neoadjuvant therapy in breast cancer patients with nodal involvement: a combined approach of axilla ultrasound and breast elastography.","authors":"Jia-Xin Huang, Feng-Tao Liu, Yu-Ting Tan, Xue-Yan Wang, Jia-Hui Huang, Shi-Yang Lin, Gui-Ling Huang, Yu-Ting Zhang, Xiao-Qing Pei","doi":"10.1007/s11547-024-01936-2","DOIUrl":"https://doi.org/10.1007/s11547-024-01936-2","url":null,"abstract":"<p><strong>Purpose: </strong>To develop a combined approach using shear wave elastography (SWE) and conventional ultrasound (US) to determine the extent of positive axillary lymph nodes (LNs) following neoadjuvant therapy (NAT) in breast cancer patients with nodal involvement.</p><p><strong>Methods: </strong>This prospective, multicenter study was registered on the Chinese Clinical Trial Registry (ChiCTR2400085035). From October 2018 to February 2024, a total of 303 breast cancer patients with biopsy-proven positive LN were enrolled. The conventional US features of axillary LNs and SWE characteristics of breast lesions after NAT were analyzed. The diagnostic performances of axilla US, breast SWE, and their combination in detecting residual metastasis in axillary level III after NAT were assessed.</p><p><strong>Results: </strong>Pathologically positive LN(s) in axilla level III were detected in 13.75% of cases following NAT. The kappa value for the axilla level with positive LN confirmed by surgical pathology and detected by US is 0.39 (p < 0.001). The AUC of conventional axilla US to determine the status of axilla level III LNs after NAT was 0.67, with a sensitivity of 51.52%, a specificity of 74.36%. The breast SWE displayed moderate performance for detecting residual metastasis in axilla level III following NAT, with an AUC of 0.79, sensitivity of 84.85%, and specificity of 74.36%. Compared to axilla US and breast SWE alone, the combination of axilla US with breast SWE achieved a stronger discriminatory ability (AUC, 0.86 vs 0.67 vs 0.79, p < 0.05, Delong's test) and precise calibration (X<sup>2</sup> = 13.90, p = 0.085, HL test), with an improved sensitivity of 93.94% and a comparable specificity of 75.64%%.</p><p><strong>Conclusions: </strong>SWE outperformed conventional US in identifying the axilla levels with nodal metastasis following NAT in patients with initially diagnosed positive axilla. Furthermore, combining breast SWE with axilla US showed good diagnostic performance for detecting residual metastasis in axilla level III after NAT.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-20DOI: 10.1007/s11547-024-01931-7
Matthew S Robertson, Yating Wang, SuChun Cheng, Hyesun Park, Shahar Glomski, Lauren C Harshman, Amanda Pace, Jacqueline Kilar, Meredith Flynn, Lauren Gilbert, Atish D Choudhury, Heather Jacene
Objective: The purpose of this study is to demonstrate the consistency and reproducibility of quantitative SPECT/CT by evaluating the maximum SUV (SUVmax) in normal bone, to provide the reference value of metastatic lesions, and to evaluate the clinical implication of SUVmax changes of osseous metastasis during treatment.
Material and methods: This prospective imaging sub-study was performed as part of a phase 2 clinical trial of patients with metastatic castration-resistant prostate cancer (mCRPC) randomized to the combination of pembrolizumab plus radium-223 or to radium-223 alone (NCT03093428). The maximum standardized uptake value (SUVmax) and mean Hounsfield Unit (HUmean) of normal bone as well as metastases were measured using a 1.5 cm region of interest (ROI) on CT and xSPECT Quant reconstruction on the baseline study (S0) and restaging scans. The most tracer-avid metastatic lesion in each patient on S0 was selected as a target lesion, and changes of SUVmax and HUmean of the target lesion were compared on the first restaging scan (S1). Correlations between the percentage changes of SUVmax of the target lesion with alkaline phosphatase (ALP) and prostate-specific antigen (PSA) were assessed.
Results: Twenty-one patients were enrolled on the imaging sub-study of which 15 had paired baseline S0 and S1 data. On S0, the median SUVmax and HUmean of normal bone was 5.85 g/mL (0.42-14.98) and 133.03 (range, 28.47-461.91), respectively. The median SUVmax and HUmean of metastasis were 42.2 g/mL (range, 17.96-143.36) and 549.58 (177.87-1107.64), respectively. There was significant reduction in SUVmax (- 40.1%, range - 86.2 to + 23.5%), p < 0.001) and increase in HUmean (+ 8.3%, range - 11.3 to + 61.7%, p = 0.0479, Wilcoxon signed-rank test) of target lesions between S0 and S1. Spearman correlation between the percentage changes of SUVmax of a target lesion and both serum PSA (r = 0.33, p = 0.226) and ALP (r = 0.45, p = 0.094) were not statistically significant.
Conclusion: Quantitative SPECT/CT provides consistent and objective imaging parameters, which can help monitor tumor burden. The median SUVmax of metastasis at baseline was roughly 7.2-fold higher than normal bone. Quantitative SPECT/CT may help visualize the early osteoblastic treatment response in prostate cancer patients treated with radium-223 alone or combined with pembrolizumab.
{"title":"Quantification of normal bone and osseous metastases in castration-resistant prostate cancer using SPECT/CT with xSPECT Quant: prospective imaging sub-study of a phase 2 clinical trial investigating the combination of pembrolizumab plus radium-223 compared to radium-223 alone.","authors":"Matthew S Robertson, Yating Wang, SuChun Cheng, Hyesun Park, Shahar Glomski, Lauren C Harshman, Amanda Pace, Jacqueline Kilar, Meredith Flynn, Lauren Gilbert, Atish D Choudhury, Heather Jacene","doi":"10.1007/s11547-024-01931-7","DOIUrl":"https://doi.org/10.1007/s11547-024-01931-7","url":null,"abstract":"<p><strong>Objective: </strong>The purpose of this study is to demonstrate the consistency and reproducibility of quantitative SPECT/CT by evaluating the maximum SUV (SUV<sub>max</sub>) in normal bone, to provide the reference value of metastatic lesions, and to evaluate the clinical implication of SUV<sub>max</sub> changes of osseous metastasis during treatment.</p><p><strong>Material and methods: </strong>This prospective imaging sub-study was performed as part of a phase 2 clinical trial of patients with metastatic castration-resistant prostate cancer (mCRPC) randomized to the combination of pembrolizumab plus radium-223 or to radium-223 alone (NCT03093428). The maximum standardized uptake value (SUV<sub>max</sub>) and mean Hounsfield Unit (HU<sub>mean</sub>) of normal bone as well as metastases were measured using a 1.5 cm region of interest (ROI) on CT and xSPECT Quant reconstruction on the baseline study (S<sub>0</sub>) and restaging scans. The most tracer-avid metastatic lesion in each patient on S<sub>0</sub> was selected as a target lesion, and changes of SUV<sub>max</sub> and HU<sub>mean</sub> of the target lesion were compared on the first restaging scan (S<sub>1</sub>). Correlations between the percentage changes of SUV<sub>max</sub> of the target lesion with alkaline phosphatase (ALP) and prostate-specific antigen (PSA) were assessed.</p><p><strong>Results: </strong>Twenty-one patients were enrolled on the imaging sub-study of which 15 had paired baseline S<sub>0</sub> and S<sub>1</sub> data. On S<sub>0</sub>, the median SUV<sub>max</sub> and HU<sub>mean</sub> of normal bone was 5.85 g/mL (0.42-14.98) and 133.03 (range, 28.47-461.91), respectively. The median SUV<sub>max</sub> and HU<sub>mean</sub> of metastasis were 42.2 g/mL (range, 17.96-143.36) and 549.58 (177.87-1107.64), respectively. There was significant reduction in SUV<sub>max</sub> (- 40.1%, range - 86.2 to + 23.5%), p < 0.001) and increase in HU<sub>mean</sub> (+ 8.3%, range - 11.3 to + 61.7%, p = 0.0479, Wilcoxon signed-rank test) of target lesions between S<sub>0</sub> and S<sub>1</sub>. Spearman correlation between the percentage changes of SUV<sub>max</sub> of a target lesion and both serum PSA (r = 0.33, p = 0.226) and ALP (r = 0.45, p = 0.094) were not statistically significant.</p><p><strong>Conclusion: </strong>Quantitative SPECT/CT provides consistent and objective imaging parameters, which can help monitor tumor burden. The median SUVmax of metastasis at baseline was roughly 7.2-fold higher than normal bone. Quantitative SPECT/CT may help visualize the early osteoblastic treatment response in prostate cancer patients treated with radium-223 alone or combined with pembrolizumab.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-18DOI: 10.1007/s11547-024-01924-6
So Yeong Jeong, Jung Hwan Baek
Thermal ablation is widely accepted as an effective and safe method for treating benign thyroid nodules. Many studies reporting short-term results have consistently demonstrated the efficacy and safety of thermal ablation. However, as the clinical application of thermal ablation grows and follow-up periods extend, long-term clinical outcomes of thermal ablation have revealed several issues, including regrowth and diagnosis of malignancy in ablated lesions. In this systematic review, we analyze the long-term clinical outcomes of thyroid thermal ablation, focusing on regrowth, delayed surgery, and the potential for malignancy after thermal ablation and propose solutions to address these unresolved issues and enhance the management of benign thyroid nodules through thermal ablation.
{"title":"Long-term clinical outcomes of thermal ablation for benign thyroid nodules and unresolved issues: a comprehensive systematic review.","authors":"So Yeong Jeong, Jung Hwan Baek","doi":"10.1007/s11547-024-01924-6","DOIUrl":"10.1007/s11547-024-01924-6","url":null,"abstract":"<p><p>Thermal ablation is widely accepted as an effective and safe method for treating benign thyroid nodules. Many studies reporting short-term results have consistently demonstrated the efficacy and safety of thermal ablation. However, as the clinical application of thermal ablation grows and follow-up periods extend, long-term clinical outcomes of thermal ablation have revealed several issues, including regrowth and diagnosis of malignancy in ablated lesions. In this systematic review, we analyze the long-term clinical outcomes of thyroid thermal ablation, focusing on regrowth, delayed surgery, and the potential for malignancy after thermal ablation and propose solutions to address these unresolved issues and enhance the management of benign thyroid nodules through thermal ablation.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142669059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-14DOI: 10.1007/s11547-024-01919-3
Tianchen Luo, Meng Yan, Meng Zhou, Andre Dekker, Ane L Appelt, Yongling Ji, Ji Zhu, Dirk de Ruysscher, Leonard Wee, Lujun Zhao, Zhen Zhang
Background: Accurate prognostication of overall survival (OS) for non-small cell lung cancer (NSCLC) patients receiving definitive radiotherapy (RT) is crucial for developing personalized treatment strategies. This study aims to construct an interpretable prognostic model that combines radiomic features extracted from normal lung and from primary tumor with clinical parameters. Our model aimed to clarify the complex, nonlinear interactions between these variables and enhance prognostic accuracy.
Methods: We included 661 stage III NSCLC patients from three multi-national datasets: a training set (N = 349), test-set-1 (N = 229), and test-set-2 (N = 83), all undergoing definitive RT. A total of 104 distinct radiomic features were separately extracted from the regions of interest in the lung and the tumor. We developed four predictive models using eXtreme gradient boosting and selected the top 10 features based on the Shapley additive explanations (SHAP) values. These models were the tumor radiomic model (Model-T), lung radiomic model (Model-L), a combined radiomic model (Model-LT), and an integrated model incorporating clinical parameters (Model-LTC). Model performance was evaluated through Harrell's concordance index, Kaplan-Meier survival curves, time-dependent area under the receiver operating characteristic curve (AUC), calibration curves, and decision curve analysis. Interpretability was assessed using the SHAP framework.
Results: Model-LTC exhibited superior performance, with notable predictive accuracy (C-index: training set, 0.87; test-set-2, 0.76) and time-dependent AUC above 0.75. Complex nonlinear relationships and interactions were evident among the model's variables.
Conclusion: The integration of radiomic and clinical factors within an interpretable framework significantly improved OS prediction. The SHAP analysis provided insightful interpretability, enhancing the model's clinical applicability and potential for aiding personalized treatment decisions.
{"title":"Improved prognostication of overall survival after radiotherapy in lung cancer patients by an interpretable machine learning model integrating lung and tumor radiomics and clinical parameters.","authors":"Tianchen Luo, Meng Yan, Meng Zhou, Andre Dekker, Ane L Appelt, Yongling Ji, Ji Zhu, Dirk de Ruysscher, Leonard Wee, Lujun Zhao, Zhen Zhang","doi":"10.1007/s11547-024-01919-3","DOIUrl":"https://doi.org/10.1007/s11547-024-01919-3","url":null,"abstract":"<p><strong>Background: </strong>Accurate prognostication of overall survival (OS) for non-small cell lung cancer (NSCLC) patients receiving definitive radiotherapy (RT) is crucial for developing personalized treatment strategies. This study aims to construct an interpretable prognostic model that combines radiomic features extracted from normal lung and from primary tumor with clinical parameters. Our model aimed to clarify the complex, nonlinear interactions between these variables and enhance prognostic accuracy.</p><p><strong>Methods: </strong>We included 661 stage III NSCLC patients from three multi-national datasets: a training set (N = 349), test-set-1 (N = 229), and test-set-2 (N = 83), all undergoing definitive RT. A total of 104 distinct radiomic features were separately extracted from the regions of interest in the lung and the tumor. We developed four predictive models using eXtreme gradient boosting and selected the top 10 features based on the Shapley additive explanations (SHAP) values. These models were the tumor radiomic model (Model-T), lung radiomic model (Model-L), a combined radiomic model (Model-LT), and an integrated model incorporating clinical parameters (Model-LTC). Model performance was evaluated through Harrell's concordance index, Kaplan-Meier survival curves, time-dependent area under the receiver operating characteristic curve (AUC), calibration curves, and decision curve analysis. Interpretability was assessed using the SHAP framework.</p><p><strong>Results: </strong>Model-LTC exhibited superior performance, with notable predictive accuracy (C-index: training set, 0.87; test-set-2, 0.76) and time-dependent AUC above 0.75. Complex nonlinear relationships and interactions were evident among the model's variables.</p><p><strong>Conclusion: </strong>The integration of radiomic and clinical factors within an interpretable framework significantly improved OS prediction. The SHAP analysis provided insightful interpretability, enhancing the model's clinical applicability and potential for aiding personalized treatment decisions.</p>","PeriodicalId":20817,"journal":{"name":"Radiologia Medica","volume":" ","pages":""},"PeriodicalIF":9.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}