Clinical radiology最新文献_第4页

Association between deep medullary veins and grey matter volume fraction in patients with cerebral small vessel disease 脑小血管疾病患者深髓静脉与灰质体积分数的关系

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-15 DOI: 10.1016/j.crad.2025.107200

Y. Han , Y. Wang , H. Wang , L. Yan , M. Wei , L. Zhou

Aim

Cerebral small vessel disease (CSVD) is a disorder of cerebral microvessels defined by clinical presentation and imaging that affects cerebral small arteries, arterioles, capillaries, and venules. Previous studies on CSVD were mainly focused on cerebral small arteries; however, there are only a few reports on the association between deep medullary veins (DMVs) and CSVD, especially the association between the number of DMVs and one of the imaging makers of CSVD-brain atrophy. The aim of this study is to investigate the relationship between DMVs and brain atrophy using 3.0T magnetic resonance images (MRI).

Material and Methods

We analyzed the complete clinical and imaging data of 101 hospitalized patients diagnosed with CSVD. DMVs was identified in the periventricular area using susceptibility-weighted imaging (SWI). Brain atrophy was assessed using voxel-based morphometry (VBM) calculations of gray matter (GM), white matter (WM), and cerebrospinal fluid volume fractions.

Results

Our results showed that the number of DMVs was significantly correlated with GM fraction (β = 0.315, P = 0.019, adjusted for age, hypertension, diabetes mellitus, and WM fraction). We also found that with increase in CSVD burden, there was no statistically significant association between the number of DMVs and GM fraction (β = 0.071, P = 0.688, adjusted for age, hypertension, diabetes mellitus, and WM fraction).

Conclusion

Our results provide evidence that fewer DMVs are associated with a smaller GM fraction in patients with a low burden of CSVD (β = 0.604, P = 0.008, adjusted for age, hypertension, diabetes mellitus, and WM fraction), while the number of DMVs is associated with brain atrophy and the progression of CSVD.

目的：脑小血管疾病（CSVD）是一种影响脑小动脉、小动脉、毛细血管和小静脉的脑微血管疾病，其临床表现和影像学特征明确。以往对心血管疾病的研究主要集中在脑小动脉；然而，关于深髓静脉（dmv）与CSVD之间关系的报道很少，特别是dmv的数量与CSVD脑萎缩的显像因素之一之间的关系。本研究目的是利用3.0T磁共振成像（MRI）研究dmv与脑萎缩的关系。材料和方法：我们分析了101例诊断为CSVD的住院患者的完整临床和影像学资料。使用敏感性加权成像（SWI）在心室周围区域识别dmv。脑萎缩的评估采用基于体素的形态学（VBM）计算灰质（GM）、白质（WM）和脑脊液体积分数。结果：dmv数量与GM分数显著相关（β = 0.315, P = 0.019，经年龄、高血压、糖尿病和WM分数校正）。我们还发现，随着CSVD负担的增加，dmv数量与GM分数之间没有统计学意义的相关性（β = 0.071, P = 0.688，经年龄、高血压、糖尿病和WM分数校正）。结论：我们的研究结果表明，在CSVD负担较轻的患者中，dmv的减少与GM分数的减少相关（β = 0.604, P = 0.008，经年龄、高血压、糖尿病和WM分数校正），而dmv的数量与脑萎缩和CSVD的进展相关。

{"title":"Association between deep medullary veins and grey matter volume fraction in patients with cerebral small vessel disease","authors":"Y. Han , Y. Wang , H. Wang , L. Yan , M. Wei , L. Zhou","doi":"10.1016/j.crad.2025.107200","DOIUrl":"10.1016/j.crad.2025.107200","url":null,"abstract":"<div><h3>Aim</h3><div>Cerebral small vessel disease (CSVD) is a disorder of cerebral microvessels defined by clinical presentation and imaging that affects cerebral small arteries, arterioles, capillaries, and venules. Previous studies on CSVD were mainly focused on cerebral small arteries; however, there are only a few reports on the association between deep medullary veins (DMVs) and CSVD, especially the association between the number of DMVs and one of the imaging makers of CSVD-brain atrophy. The aim of this study is to investigate the relationship between DMVs and brain atrophy using 3.0T magnetic resonance images (MRI).</div></div><div><h3>Material and Methods</h3><div>We analyzed the complete clinical and imaging data of 101 hospitalized patients diagnosed with CSVD. DMVs was identified in the periventricular area using susceptibility-weighted imaging (SWI). Brain atrophy was assessed using voxel-based morphometry (VBM) calculations of gray matter (GM), white matter (WM), and cerebrospinal fluid volume fractions.</div></div><div><h3>Results</h3><div>Our results showed that the number of DMVs was significantly correlated with GM fraction (β = 0.315, <em>P</em> = 0.019, adjusted for age, hypertension, diabetes mellitus, and WM fraction). We also found that with increase in CSVD burden, there was no statistically significant association between the number of DMVs and GM fraction (β = 0.071, <em>P</em> = 0.688, adjusted for age, hypertension, diabetes mellitus, and WM fraction).</div></div><div><h3>Conclusion</h3><div>Our results provide evidence that fewer DMVs are associated with a smaller GM fraction in patients with a low burden of CSVD (β = 0.604, <em>P</em> = 0.008, adjusted for age, hypertension, diabetes mellitus, and WM fraction), while the number of DMVs is associated with brain atrophy and the progression of CSVD.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107200"},"PeriodicalIF":1.9,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145965419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effectiveness of single-energy metallic artifact reduction in CT angiography for patients with lower extremity metallic implants 下肢金属植入物CT血管造影中单能量金属伪影降低的效果。

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-15 DOI: 10.1016/j.crad.2025.107217

M. Kara, A. Shatat, M.K. Dönmez, M. Tosun, H. Uslu, A. Yalnız, Ö. Çakır, E. Çiftçi, I. Cam

Aim

To evaluate the impact of a single-energy metal artifact reduction algorithm on image quality in lower extremity CT angiography (CTA) of patients with metallic implants.

Materials and Methods

This retrospective, single-center study included patients with metallic implants in the lower extremity who underwent lower extremity CTA between January 2021 and December 2024. All scans were performed on a 320–detector row CT scanner. Standard images were reconstructed with hybrid iterative reconstruction, and an additional reconstruction was performed with a projection-based single-energy metal artifact reduction (SEMAR) algorithm. Objective image quality was assessed by measuring image noise in target tissues (arteries, muscle, subcutaneous fat, cortical bone, medullary bone) on both standard and SEMAR images. Subjective image quality was evaluated for arteries, muscle, and bone using a 5-point scale. Scores ≥4 were considered diagnostic. Paired t-tests or Wilcoxon signed-rank tests were used for comparisons, as appropriate

Results

The study group included 30 patients. SEMAR reconstruction significantly reduced image noise and artifact index in all evaluated tissues compared to standard images with objective assessment (p<0.001 for each target tissue). Subjective evaluation of diagnostic-quality showed marked improvements with the SEMAR algorithm for each target tissue compared to the standard images using a 5-point scale (p<0.001 for each). For arterial structures, only 5 of 30 cases (16.6 %) were considered diagnostic on the standard images (score 4 or 5), whereas with SEMAR 28 of 30 cases (93.3 %) were diagnostic.

Conclusions

SEMAR significantly reduced artifacts and image noise, restoring diagnostic image quality for vessels and surrounding tissues.

目的：评价单能量金属伪影降低算法对金属植入患者下肢CT血管造影（CTA）图像质量的影响。材料和方法：这项回顾性的单中心研究纳入了2021年1月至2024年12月期间接受下肢CTA治疗的下肢金属植入物患者。所有扫描均在320排CT扫描仪上进行。采用混合迭代重建方法重建标准图像，并采用基于投影的单能量金属伪影减少（SEMAR）算法进行额外重建。通过在标准和SEMAR图像上测量目标组织（动脉、肌肉、皮下脂肪、皮质骨、髓质骨）的图像噪声来评估客观图像质量。采用5分制对动脉、肌肉和骨骼的主观图像质量进行评估。得分≥4分被认为是诊断。采用配对t检验或Wilcoxon符号秩检验进行比较。结果：研究组包括30例患者。与客观评估的标准图像相比，SEMAR重建显著降低了所有评估组织的图像噪声和伪影指数(pp结论：SEMAR显著降低了伪影和图像噪声，恢复了血管和周围组织的诊断图像质量。

{"title":"Effectiveness of single-energy metallic artifact reduction in CT angiography for patients with lower extremity metallic implants","authors":"M. Kara, A. Shatat, M.K. Dönmez, M. Tosun, H. Uslu, A. Yalnız, Ö. Çakır, E. Çiftçi, I. Cam","doi":"10.1016/j.crad.2025.107217","DOIUrl":"10.1016/j.crad.2025.107217","url":null,"abstract":"<div><h3>Aim</h3><div>To evaluate the impact of a single-energy metal artifact reduction algorithm on image quality in lower extremity CT angiography (CTA) of patients with metallic implants.</div></div><div><h3>Materials and Methods</h3><div>This retrospective, single-center study included patients with metallic implants in the lower extremity who underwent lower extremity CTA between January 2021 and December 2024. All scans were performed on a 320–detector row CT scanner. Standard images were reconstructed with hybrid iterative reconstruction, and an additional reconstruction was performed with a projection-based single-energy metal artifact reduction (SEMAR) algorithm. Objective image quality was assessed by measuring image noise in target tissues (arteries, muscle, subcutaneous fat, cortical bone, medullary bone) on both standard and SEMAR images. Subjective image quality was evaluated for arteries, muscle, and bone using a 5-point scale. Scores ≥4 were considered diagnostic. Paired t-tests or Wilcoxon signed-rank tests were used for comparisons, as appropriate</div></div><div><h3>Results</h3><div>The study group included 30 patients. SEMAR reconstruction significantly reduced image noise and artifact index in all evaluated tissues compared to standard images with objective assessment (<em>p</em><0.001 for each target tissue). Subjective evaluation of diagnostic-quality showed marked improvements with the SEMAR algorithm for each target tissue compared to the standard images using a 5-point scale (<em>p</em><0.001 for each). For arterial structures, only 5 of 30 cases (16.6 %) were considered diagnostic on the standard images (score 4 or 5), whereas with SEMAR 28 of 30 cases (93.3 %) were diagnostic.</div></div><div><h3>Conclusions</h3><div>SEMAR significantly reduced artifacts and image noise, restoring diagnostic image quality for vessels and surrounding tissues.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107217"},"PeriodicalIF":1.9,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145965440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Substantial discordance between structured pre-operative computed tomography (CT) reports and intraoperative findings in advanced ovarian cancer cytoreductive surgery, affecting treatment decisions 在晚期卵巢癌细胞减少手术中，结构化的术前计算机断层扫描（CT）报告与术中发现之间存在实质性的不一致，影响治疗决策。

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-13 DOI: 10.1016/j.crad.2025.107214

M. Kengsakul , H.J. van Beekhuizen , A. Bijleveld , D.C. Plak , B.M. de Kok , I.G. Schoots , J.M.J. Piek , S.J. Kerr , M.G.J. Thomeer , G.M. Nieuwenhuyzen-de Boer

AIM

The aim of this study was to assess the agreement and diagnostic accuracy of structured preoperative computed tomography (CT) findings compared to intraoperative findings in advanced ovarian cancer patients undergoing primary or interval cytoreductive surgery.

MATERIALS AND METHODS

Patients with CT scans suggesting advanced ovarian cancer were enrolled in the study. Agreement between CT reports, reviewed using European Society of Urogenital Radiology (ESUR) criteria, and surgical findings were evaluated with the kappa coefficient. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated for each radiologic feature.

RESULTS

From February 2018 to September 2020, 258 patients with International Federation of Gynaecology and Obstetrics (FIGO) stage IIIB-IV epithelial ovarian cancer were enrolled. Agreement between ESUR-reviewed CT reports and surgical findings was slight to fair (kappa = 0.115–0.352). The most common CT findings were peritoneal carcinomatosis, omental metastases, and bowel involvement. Sensitivity and specificity of peritoneal carcinomatosis were 0.91 (95% confidence interval [CI]: 0.86–0.94) and 0.19 (95% CI: 0.10–0.31), with an area under the receiver operating characteristic curve (AUC) of 0.55 (95% CI: 0.46–0.64). Omental metastases had a sensitivity of 0.91 (95% CI: 0.87–0.95) and specificity of 0.27 (95% CI: 0.16–0.40) with an AUC of 0.59 (95% CI: 0.52–0.65). Bowel involvement showed a sensitivity of 0.61 (95% CI: 0.54–0.67), specificity of 0.71 (95% CI: 0.58–0.83), and AUC of 0.66 (95% CI: 0.58–0.74).

CONCLUSION

This study demonstrates limited concordance between ESUR-reviewed CT reports and intraoperative findings in advanced ovarian cancer. Even when interpreted by expert radiologists, CT imaging alone may inadequately reflect disease burden. These findings emphasise the ongoing challenges of imaging-based surgical planning and support the need for further development and validation of more accurate preoperative assessment tools.

目的：本研究的目的是评估术前结构化计算机断层扫描（CT）结果与行原发性或间隔期细胞减少手术的晚期卵巢癌患者术中结果的一致性和诊断准确性。材料和方法：CT扫描提示晚期卵巢癌的患者入组研究。采用欧洲泌尿生殖系统放射学会（ESUR）标准审查CT报告与手术结果之间的一致性，用kappa系数进行评估。计算每个放射学特征的敏感性、特异性、阳性预测值（PPV）和阴性预测值（NPV）。结果：2018年2月至2020年9月，纳入258例国际妇产科联合会（FIGO） iii期b - iv期上皮性卵巢癌患者。esur复查CT报告与手术结果的一致性为轻微到一般（kappa = 0.115-0.352）。最常见的CT表现为腹膜癌、大网膜转移和肠受累。腹膜癌的敏感性和特异性分别为0.91（95%可信区间[CI]: 0.86-0.94）和0.19 (95% CI: 0.10-0.31)，受者工作特征曲线下面积（AUC）为0.55 （95% CI: 0.46-0.64）。网膜转移的敏感性为0.91 (95% CI: 0.87-0.95)，特异性为0.27 (95% CI: 0.16-0.40)， AUC为0.59 （95% CI: 0.52-0.65）。肠受累的敏感性为0.61 (95% CI: 0.54-0.67)，特异性为0.71 (95% CI: 0.58-0.83)， AUC为0.66 （95% CI: 0.58-0.74）。结论：本研究显示晚期卵巢癌的esur复查CT报告与术中发现有一定的一致性。即使由放射科专家解释，单独的CT成像也不能充分反映疾病负担。这些发现强调了基于成像的手术计划的持续挑战，并支持进一步开发和验证更准确的术前评估工具的必要性。

{"title":"Substantial discordance between structured pre-operative computed tomography (CT) reports and intraoperative findings in advanced ovarian cancer cytoreductive surgery, affecting treatment decisions","authors":"M. Kengsakul , H.J. van Beekhuizen , A. Bijleveld , D.C. Plak , B.M. de Kok , I.G. Schoots , J.M.J. Piek , S.J. Kerr , M.G.J. Thomeer , G.M. Nieuwenhuyzen-de Boer","doi":"10.1016/j.crad.2025.107214","DOIUrl":"10.1016/j.crad.2025.107214","url":null,"abstract":"<div><h3>AIM</h3><div>The aim of this study was to assess the agreement and diagnostic accuracy of structured preoperative computed tomography (CT) findings compared to intraoperative findings in advanced ovarian cancer patients undergoing primary or interval cytoreductive surgery.</div></div><div><h3>MATERIALS AND METHODS</h3><div>Patients with CT scans suggesting advanced ovarian cancer were enrolled in the study. Agreement between CT reports, reviewed using European Society of Urogenital Radiology (ESUR) criteria, and surgical findings were evaluated with the kappa coefficient. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated for each radiologic feature.</div></div><div><h3>RESULTS</h3><div>From February 2018 to September 2020, 258 patients with International Federation of Gynaecology and Obstetrics (FIGO) stage IIIB-IV epithelial ovarian cancer were enrolled. Agreement between ESUR-reviewed CT reports and surgical findings was slight to fair (kappa = 0.115–0.352). The most common CT findings were peritoneal carcinomatosis, omental metastases, and bowel involvement. Sensitivity and specificity of peritoneal carcinomatosis were 0.91 (95% confidence interval [CI]: 0.86–0.94) and 0.19 (95% CI: 0.10–0.31), with an area under the receiver operating characteristic curve (AUC) of 0.55 (95% CI: 0.46–0.64). Omental metastases had a sensitivity of 0.91 (95% CI: 0.87–0.95) and specificity of 0.27 (95% CI: 0.16–0.40) with an AUC of 0.59 (95% CI: 0.52–0.65). Bowel involvement showed a sensitivity of 0.61 (95% CI: 0.54–0.67), specificity of 0.71 (95% CI: 0.58–0.83), and AUC of 0.66 (95% CI: 0.58–0.74).</div></div><div><h3>CONCLUSION</h3><div>This study demonstrates limited concordance between ESUR-reviewed CT reports and intraoperative findings in advanced ovarian cancer. Even when interpreted by expert radiologists, CT imaging alone may inadequately reflect disease burden. These findings emphasise the ongoing challenges of imaging-based surgical planning and support the need for further development and validation of more accurate preoperative assessment tools.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107214"},"PeriodicalIF":1.9,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145965461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lung computed tomography (CT) imaging findings of chronic obstructive pulmonary disease patients with impaired sleep quality 慢性阻塞性肺疾病患者睡眠质量受损的肺部CT影像学表现

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-13 DOI: 10.1016/j.crad.2025.107215

P. Zhang , T. Li , Q. Song , C. Liu , Y. Zeng , S. Chen , P. Chen , L. Lin

Aim

To investigate the computed tomography (CT) imaging characteristics (including diaphragm thickness [DT], pulmonary artery to aorta ratio [dPA/A], and airway indices) associated with impaired sleep quality in chronic obstructive pulmonary disease (COPD) patients.

Materials and Methods

This cross-sectional study enrolled 190 COPD patients (December 2021–September 2024). Baseline data included demographics, COPD Assessment Test (CAT) scores, pulmonary function, exacerbation history, and CT parameters. Impaired sleep quality was defined as Pittsburgh Sleep Quality Index (PSQI) score ≥5, grouping patients accordingly.

Results

Patients (mean age 64.8 years; 93.1% male) included 56% with impaired sleep quality (linked to higher CAT scores and lower FEV₁/FVC). The impaired sleep group had smaller airway lumen area (LA), mean inner/outer diameters (mID/mOD), and DT; plus higher wall area percentage (WA%) and dPA/A. DT, WA%, and dPA/A were independent risk factors for impaired sleep; dPA/A had the highest ROC AUC (0.688), followed by CAT (0.667), DT (0.632), and WA% (0.602).

Conclusion

Impaired sleep quality in COPD may relate to airway narrowing, airway wall thickening, reduced lumen diameter, and enlarged dPA/A.

目的探讨慢性阻塞性肺疾病（COPD）患者睡眠质量受损的CT影像学特征（包括膈膜厚度[DT]、肺动脉/主动脉比值[dPA/A]、气道指数）。材料与方法本横断面研究纳入190例COPD患者（2021年12月- 2024年9月）。基线数据包括人口统计、COPD评估测试（CAT）评分、肺功能、加重史和CT参数。以匹兹堡睡眠质量指数（PSQI）评分≥5分为睡眠质量受损患者进行分组。结果患者（平均年龄64.8岁，93.1%为男性）中有56%的患者睡眠质量受损（与CAT评分较高和FEV1/FVC较低有关）。睡眠障碍组气道管腔面积（LA）、平均内径/外径（mID/mOD）和DT较小；加上更高的墙面积百分比（WA%）和dPA/A。DT、WA%和dPA/A是睡眠障碍的独立危险因素；dPA/A的ROC AUC最高（0.688），其次是CAT（0.667）、DT（0.632）和WA%（0.602）。结论COPD患者睡眠质量下降可能与气道狭窄、气道壁增厚、管腔直径减小、dPA/A增大有关。

{"title":"Lung computed tomography (CT) imaging findings of chronic obstructive pulmonary disease patients with impaired sleep quality","authors":"P. Zhang , T. Li , Q. Song , C. Liu , Y. Zeng , S. Chen , P. Chen , L. Lin","doi":"10.1016/j.crad.2025.107215","DOIUrl":"10.1016/j.crad.2025.107215","url":null,"abstract":"<div><h3>Aim</h3><div>To investigate the computed tomography (CT) imaging characteristics (including diaphragm thickness [DT], pulmonary artery to aorta ratio [dPA/A], and airway indices) associated with impaired sleep quality in chronic obstructive pulmonary disease (COPD) patients.</div></div><div><h3>Materials and Methods</h3><div>This cross-sectional study enrolled 190 COPD patients (December 2021–September 2024). Baseline data included demographics, COPD Assessment Test (CAT) scores, pulmonary function, exacerbation history, and CT parameters. Impaired sleep quality was defined as Pittsburgh Sleep Quality Index (PSQI) score ≥5, grouping patients accordingly.</div></div><div><h3>Results</h3><div>Patients (mean age 64.8 years; 93.1% male) included 56% with impaired sleep quality (linked to higher CAT scores and lower FEV<sub>1</sub>/FVC). The impaired sleep group had smaller airway lumen area (LA), mean inner/outer diameters (mID/mOD), and DT; plus higher wall area percentage (WA%) and dPA/A. DT, WA%, and dPA/A were independent risk factors for impaired sleep; dPA/A had the highest ROC AUC (0.688), followed by CAT (0.667), DT (0.632), and WA% (0.602).</div></div><div><h3>Conclusion</h3><div>Impaired sleep quality in COPD may relate to airway narrowing, airway wall thickening, reduced lumen diameter, and enlarged dPA/A.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107215"},"PeriodicalIF":1.9,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computerised tomography (CT)-like images based on T1-weighted gradient echo magnetic resonance imaging (MRI) sequences for the assessment of osteochondral lesions of the ankle 基于t1加权梯度回波磁共振成像（MRI）序列的计算机断层扫描（CT）样图像用于评估踝关节骨软骨病变

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-13 DOI: 10.1016/j.crad.2025.107213

W.Y. Kang , E. Shim , M.H. Kim , H.J. Kim , Y.H. Park , O.H. Woo

AIM

To compare the diagnostic performance of computerised tomography (CT)-like magnetic resonance imaging (MRI) using the fast field echo resembling a CT using restricted echo-spacing (FRACTURE) with conventional CT for assessing osteochondral lesions (OCLs) of the ankle.

MATERIALS AND METHODS

This prospective single-centre study included 29 patients (30 ankles) with suspected OCLs who underwent both 3T MRI with the 3D FRACTURE sequence and conventional CT. OCL detection, classification, and measurement accuracy were compared, using CT as the comparative group. Agreement between modalities and readers were analysed using Cohen's κ, Fleiss' κ, and intraclass correlation coefficients (ICCs).

RESULTS

CT identified 22 OCLs, predominantly in the talus (59.1 % in the medioequator zone). CT-like MRI detected all OCLs, demonstrating excellent agreement with CT for lesion location (κ = 0.968–1.000), Ferkel classification (κ = 0.878-.970), and containment type (κ = 0.913-1.000). OCL size measurements showed strong correlation (ICC = 0.909-0.968 intraobserver; 0.797-0.999 interobserver). Evaluation of surrounding bone quality and additional osseous change yield substantial to almost perfect agreement (κ = 0.734-1.000). Image quality and diagnostic confidence were comparable between modalities.

CONCLUSION

CT-like MRI using the FRACTURE sequence provides high diagnostic accuracy and excellent agreement with CT in the assessment of ankle OCLs and associated bony abnormalities. It offers a reliable, radiation-free alternative to CT that may support preoperative planning while reducing radiation exposure and overall imaging burden.

目的比较计算机断层扫描（CT）类磁共振成像（MRI）的诊断性能，该成像使用快速场回波，类似于使用有限回声间隔（骨折）的CT与常规CT评估踝关节骨软骨病变（OCLs）。材料与方法：本前瞻性单中心研究纳入29例疑似ocl患者（30踝关节），均行3T MRI三维骨折序列检查和常规CT检查。以CT为对照组，比较OCL的检测、分类及测量精度。使用Cohen’s κ、Fleiss’s κ和类内相关系数（ICCs）分析模式和读者之间的一致性。结果sct鉴定出22例ocl，主要发生在距骨（59.1%发生在中赤道区）。CT样MRI检测到所有ocl，与CT在病变位置（κ = 0.968-1.000）、Ferkel分类（κ = 0.878- 0.970）和收容类型（κ = 0.913-1.000）方面表现出极好的一致性。OCL尺寸测量结果显示出很强的相关性（观察者内ICC = 0.909-0.968；观察者间ICC = 0.797-0.999）。周围骨质量和其他骨变化的评估结果几乎完全一致（κ = 0.734-1.000）。两种模式之间的图像质量和诊断可信度相当。结论使用骨折序列的CT样MRI在评估踝关节ocl和相关骨异常方面具有很高的诊断准确性，并且与CT非常吻合。它提供了一种可靠的、无辐射的CT替代方案，可以支持术前计划，同时减少辐射暴露和整体成像负担。

{"title":"Computerised tomography (CT)-like images based on T1-weighted gradient echo magnetic resonance imaging (MRI) sequences for the assessment of osteochondral lesions of the ankle","authors":"W.Y. Kang , E. Shim , M.H. Kim , H.J. Kim , Y.H. Park , O.H. Woo","doi":"10.1016/j.crad.2025.107213","DOIUrl":"10.1016/j.crad.2025.107213","url":null,"abstract":"<div><h3>AIM</h3><div>To compare the diagnostic performance of computerised tomography (CT)-like magnetic resonance imaging (MRI) using the fast field echo resembling a CT using restricted echo-spacing (FRACTURE) with conventional CT for assessing osteochondral lesions (OCLs) of the ankle.</div></div><div><h3>MATERIALS AND METHODS</h3><div>This prospective single-centre study included 29 patients (30 ankles) with suspected OCLs who underwent both 3T MRI with the 3D FRACTURE sequence and conventional CT. OCL detection, classification, and measurement accuracy were compared, using CT as the comparative group. Agreement between modalities and readers were analysed using Cohen's κ, Fleiss' κ, and intraclass correlation coefficients (ICCs).</div></div><div><h3>RESULTS</h3><div>CT identified 22 OCLs, predominantly in the talus (59.1 % in the medioequator zone). CT-like MRI detected all OCLs, demonstrating excellent agreement with CT for lesion location (κ = 0.968–1.000), Ferkel classification (κ = 0.878-.970), and containment type (κ = 0.913-1.000). OCL size measurements showed strong correlation (ICC = 0.909-0.968 intraobserver; 0.797-0.999 interobserver). Evaluation of surrounding bone quality and additional osseous change yield substantial to almost perfect agreement (κ = 0.734-1.000). Image quality and diagnostic confidence were comparable between modalities.</div></div><div><h3>CONCLUSION</h3><div>CT-like MRI using the FRACTURE sequence provides high diagnostic accuracy and excellent agreement with CT in the assessment of ankle OCLs and associated bony abnormalities. It offers a reliable, radiation-free alternative to CT that may support preoperative planning while reducing radiation exposure and overall imaging burden.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107213"},"PeriodicalIF":1.9,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comment on ‘Novel magnetic resonance imaging (MRI)-based radiomics for predicting perineural invasion in rectal cancer: a two-centre study’ “基于新型磁共振成像（MRI）的放射组学预测直肠癌神经周围浸润：一项双中心研究”评论

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-12 DOI: 10.1016/j.crad.2025.107209

W. Zhao , Y. Liu , B. Li

引用次数: 0

Letter to the editor: diaphragmatic MRI and 3D spirometry: potential biomarkers in neuromuscular disorders 致编辑的信：膈肌MRI和3D肺活量测定：神经肌肉疾病的潜在生物标志物。

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-12 DOI: 10.1016/j.crad.2025.107210

M. Liu , Y. Chen

引用次数: 0

Have UK radiologists embraced the peer learning guidance issued by the Royal College of Radiologists? 英国放射科医师是否接受了皇家放射科医师学院发布的同行学习指南？

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-12 DOI: 10.1016/j.crad.2025.107211

R. Balasubramaniam , J. Smith , C. Parchment-Smith , K. Drinkwater , M. Beavon , H.C. Addley , R. Greenhalgh

AIM

To evaluate the practice of Radiology Events and Learning Meetings (REALMs) in the National Health Service Radiology Departments (NHSRDs) and teleradiology companies (TRCs) servicing the UK market.

MATERIALS AND METHODS

A national audit measuring the conduct of REALMs against standards derived from the Royal College of Radiologist (RCR) document “Standards for radiology events and learning meetings”. Data collection was completed in October 2024.

RESULTS

The response rate was 73 % (146/200) from NHSRDs and 100 % from TRCs (6/6). Most (97 %) NHSRDs and all six TRCs had a REALM. They occurred more frequently within the NHSRD with 72 % conducting 6 or more meetings a year compared to 33 % of TRCs. A REALM coordinator was present in 96 % of NHSRDs and 67 % of TRCs. Feedback to the primary reporter occurred in 85 % of NHSRDs and 83 % of TRCs. Only 33 % of NHSRDs and 50 % of TRCs disseminated learning points to radiologists. Lack of protected time was a barrier to REALM in 33 % of NHSRDs and remote working an issue for TRCs (50 %). REALM was still used for governance processes in 39 % of NHSRDs in contravention of the RCR guidance.

CONCLUSION

There was excellent uptake of the REALM in both NHSRDs and TRCs. The frequency of meetings was higher, and the appointment of a formal REALM chair was more likely in NHSRDs compared to TRCs. Dissemination of the learning points from REALM, ensuring there is protected time for these meetings, and keeping REALM separate to governance processes were some of the key areas identified to ameliorate.

目的：评估为英国市场服务的国家卫生服务放射科（NHSRDs）和远程放射学公司（TRCs）的放射学活动和学习会议（REALMs）的实践。材料和方法根据皇家放射学院（RCR）文件“放射学事件和学习会议标准”的标准，对REALMs的行为进行国家审计。数据收集于2024年10月完成。结果NHSRDs的有效率为73% (146/200)，TRCs的有效率为100%（6/6）。大多数（97%）nhsrd和所有6个trc都有REALM。这些会议在全国高铁内部发生得更为频繁，72%的国家高铁每年召开6次或更多会议，而在全国高铁内部，这一比例为33%。96%的国家卫生和社会发展中心和67%的国家卫生和社会发展中心都有REALM协调员。85%的nhsrd和83%的trc向主要报告者反馈。只有33%的nhsrd和50%的TRCs向放射科医生传授学习要点。在33%的nhsrd中，缺乏保护时间是REALM的障碍，在trc中，远程工作是一个问题（50%）。39%的nhsrd仍将REALM用于治理过程，这违反了RCR指南。结论NHSRDs和TRCs对REALM均有良好的吸收。会议的频率更高，与trc相比，nhsrd更有可能任命正式的REALM主席。来自REALM的学习点的传播，确保这些会议有受保护的时间，以及保持REALM与治理过程的分离是确定要改进的一些关键领域。

{"title":"Have UK radiologists embraced the peer learning guidance issued by the Royal College of Radiologists?","authors":"R. Balasubramaniam , J. Smith , C. Parchment-Smith , K. Drinkwater , M. Beavon , H.C. Addley , R. Greenhalgh","doi":"10.1016/j.crad.2025.107211","DOIUrl":"10.1016/j.crad.2025.107211","url":null,"abstract":"<div><h3>AIM</h3><div>To evaluate the practice of Radiology Events and Learning Meetings (REALMs) in the National Health Service Radiology Departments (NHSRDs) and teleradiology companies (TRCs) servicing the UK market.</div></div><div><h3>MATERIALS AND METHODS</h3><div>A national audit measuring the conduct of REALMs against standards derived from the Royal College of Radiologist (RCR) document “Standards for radiology events and learning meetings”. Data collection was completed in October 2024.</div></div><div><h3>RESULTS</h3><div>The response rate was 73 % (146/200) from NHSRDs and 100 % from TRCs (6/6). Most (97 %) NHSRDs and all six TRCs had a REALM. They occurred more frequently within the NHSRD with 72 % conducting 6 or more meetings a year compared to 33 % of TRCs. A REALM coordinator was present in 96 % of NHSRDs and 67 % of TRCs. Feedback to the primary reporter occurred in 85 % of NHSRDs and 83 % of TRCs. Only 33 % of NHSRDs and 50 % of TRCs disseminated learning points to radiologists. Lack of protected time was a barrier to REALM in 33 % of NHSRDs and remote working an issue for TRCs (50 %). REALM was still used for governance processes in 39 % of NHSRDs in contravention of the RCR guidance.</div></div><div><h3>CONCLUSION</h3><div>There was excellent uptake of the REALM in both NHSRDs and TRCs. The frequency of meetings was higher, and the appointment of a formal REALM chair was more likely in NHSRDs compared to TRCs. Dissemination of the learning points from REALM, ensuring there is protected time for these meetings, and keeping REALM separate to governance processes were some of the key areas identified to ameliorate.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107211"},"PeriodicalIF":1.9,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lessons learned from the 2023 Türkiye twin earthquakes: how radiology facilities can respond to disasters 从2023年<s:1>基耶岛双地震中吸取的教训：放射学设施如何应对灾害

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-11 DOI: 10.1016/j.crad.2025.107208

S. Aydın , N. Yurttutan , B. Kızıldağ , İnan Korkmaz , B.Ç. Peköz , S. Karazincir , M.R. Onur

On 6 February 2023, back-to-back earthquakes (Mw 7.7 and 7.6) in southeastern Türkiye produced a prolonged mass-casualty incident, placing heavy demands on radiology services nationwide. Operational and clinical lessons were derived from frontline experience to guide emergency imaging under disaster conditions. Surge rostering and rapid staff redistribution were implemented; point-of-care ultrasound was employed for damage-control triage; and “CT-first” pathways were adopted for polytrauma. Workflow continuity during PACS/network outages was maintained with paper logs, downtime order sets, and standardized critical findings phrasing. Disaster teleradiology was activated through streamlined credentialing and ID-agnostic reporting, enabling rapid capacity expansion and support for hospitals beyond the epicentral region. Dominant injury patterns observed were crush injury with acute compartment syndrome; traumatic brain injury; chest trauma with sequential rib fractures, pulmonary contusion and pneumothorax; lumbar-predominant spinal fractures; and pelvic and long-bone injuries. Imaging correlates of rhabdomyolysis and non-lethal pneumomediastinum compatible with the Macklin effect are summarized. Protocol adaptations that preserved throughput and safety included abbreviated, low-dose trauma CT; cautious contrast use in renally vulnerable patients; and corridor-based scanner prioritisation during overflow. On the basis of these observations, a radiology preparedness bundle is presented: redundant power and IT failover; predefined modality-prioritisation matrices; caches of portable US/X-ray for secondary triage; streamlined trauma CT checklists; templated reports that foreground immediate actions; and interoperable teleradiology hooks that can be switched on rapidly. These measures are transferable to earthquakes and other mass-casualty events, sustaining diagnostic capacity, communication, and team alignment under extreme constraints.

2023年2月6日，乌克兰东南部连续发生7.7级和7.6级地震，造成了长期的大规模伤亡事件，对全国的放射服务提出了沉重的要求。从一线经验中获得了操作和临床经验教训，以指导灾害条件下的紧急成像。执行了增派名册和迅速重新分配工作人员；采用即时超声进行损伤控制分诊；多发伤采用“ct优先”路径。在PACS/网络中断期间，通过纸质日志、停机订单集和标准化的关键发现措辞来保持工作流程的连续性。灾害远程放射学通过简化的认证和身份不确定报告得以激活，从而能够迅速扩大能力并支持震中地区以外的医院。主要损伤类型为挤压伤合并急性筋膜室综合征；外伤性脑损伤；胸部外伤伴连续肋骨骨折、肺挫伤和气胸；腰椎为主的脊柱骨折；骨盆和长骨损伤。本文总结了横纹肌溶解和与麦克林效应相容的非致死性纵隔气肿的影像学相关因素。保留吞吐量和安全性的方案调整包括缩短、低剂量创伤CT；肾易损患者慎用对比剂；以及在溢出期间基于走廊的扫描仪优先级。在这些观察的基础上，提出了一个放射学准备包：冗余电源和IT故障转移；预定义的模式优先级矩阵；储存便携式超声/ x光片，供二次分诊；简化创伤CT检查表；模板报告显示即时操作；还有可互操作的远程放射学挂钩，可以快速打开。这些措施可用于地震和其他大规模伤亡事件，在极端限制条件下维持诊断能力、沟通和团队协调。

{"title":"Lessons learned from the 2023 Türkiye twin earthquakes: how radiology facilities can respond to disasters","authors":"S. Aydın , N. Yurttutan , B. Kızıldağ , İnan Korkmaz , B.Ç. Peköz , S. Karazincir , M.R. Onur","doi":"10.1016/j.crad.2025.107208","DOIUrl":"10.1016/j.crad.2025.107208","url":null,"abstract":"<div><div>On 6 February 2023, back-to-back earthquakes (Mw 7.7 and 7.6) in southeastern Türkiye produced a prolonged mass-casualty incident, placing heavy demands on radiology services nationwide. Operational and clinical lessons were derived from frontline experience to guide emergency imaging under disaster conditions. Surge rostering and rapid staff redistribution were implemented; point-of-care ultrasound was employed for damage-control triage; and “CT-first” pathways were adopted for polytrauma. Workflow continuity during PACS/network outages was maintained with paper logs, downtime order sets, and standardized critical findings phrasing. Disaster teleradiology was activated through streamlined credentialing and ID-agnostic reporting, enabling rapid capacity expansion and support for hospitals beyond the epicentral region. Dominant injury patterns observed were crush injury with acute compartment syndrome; traumatic brain injury; chest trauma with sequential rib fractures, pulmonary contusion and pneumothorax; lumbar-predominant spinal fractures; and pelvic and long-bone injuries. Imaging correlates of rhabdomyolysis and non-lethal pneumomediastinum compatible with the Macklin effect are summarized. Protocol adaptations that preserved throughput and safety included abbreviated, low-dose trauma CT; cautious contrast use in renally vulnerable patients; and corridor-based scanner prioritisation during overflow. On the basis of these observations, a radiology preparedness bundle is presented: redundant power and IT failover; predefined modality-prioritisation matrices; caches of portable US/X-ray for secondary triage; streamlined trauma CT checklists; templated reports that foreground immediate actions; and interoperable teleradiology hooks that can be switched on rapidly. These measures are transferable to earthquakes and other mass-casualty events, sustaining diagnostic capacity, communication, and team alignment under extreme constraints.</div></div>","PeriodicalId":10695,"journal":{"name":"Clinical radiology","volume":"93 ","pages":"Article 107208"},"PeriodicalIF":1.9,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Letter to the editor: The appropriateness of primary care physician referrals for lumbar spine Magnetic Resonance Imaging (MRI): retrospective cross-sectional study 致编辑的信：初级保健医生转诊腰椎磁共振成像（MRI）的适宜性：回顾性横断面研究

IF 1.9 3区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Clinical radiology

Pub Date : 2025-12-11 DOI: 10.1016/j.crad.2025.107207

W. Wang , J. Zhao

引用次数: 0