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Intestinal ultrasound for follow-up after 24 weeks of biological therapy in inflammatory bowel disease patients: an Egyptian center experience during the COVID-19 pandemic 炎症性肠病患者接受生物疗法 24 周后的肠道超声波随访:埃及中心在 COVID-19 大流行期间的经验
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-27 DOI: 10.1186/s43055-024-01332-w
Sarah El-Nakeep, Ehab Nashaat, Fatma Alsherif, Mohamed Magdy Salama
Inflammatory bowel disease is a chronic inflammatory condition of the gut. It has two major subtypes Crohn’s disease and ulcerative colitis. The follow-up consists of radiologic, molecular, endoscopic, and histological assessments. Intestinal ultrasound (IUS) is a noninvasive measure that provides future hope in guiding the management of IBD patients. This study is to assess the effectiveness of IUS in IBD patients’ follow-up in our tertiary center during the pandemic. This is a prospective observational study during the COVID-19 pandemic. We used IUS to assess activity of IBD at baseline and at 6-month follow-up of patients on maintenance biological therapy using the following parameters: bowel haustrations, stratification, bowel wall thickness (BWT), Doppler sign (Limberg classification), presence of lymph nodes, or fibrofatty infiltration, echogenicity of the bowel, and presence of fistulae or abscesses. We compared the IUS with other radiologic parameters, histologic, and endoscopic scores at baseline before therapy, while we compared IUS with clinical scores and laboratory parameters before and after 24 weeks of biological treatment. The cohort included 50 known IBD patients from June 2021 to January 2022. The laboratory studies showed a significant improvement in the hemoglobin indices, CRP, and fecal calprotectin from baseline and after 24 weeks. BWT, lumen diameter, lymph node presence, inflammatory signs, and Doppler activity signs were the most significant parameters in detecting improvement. However, there was no significant correlation between fecal calprotectin levels and ultrasound parameters. There was a positive correlation between MR and CT enterography, endoscopic parameters, and IUS parameters at baseline. IUS is an effective tool for follow-up of IBD patients especially during the pandemic periods.
炎症性肠病是一种慢性肠道炎症。它有两大亚型,即克罗恩病和溃疡性结肠炎。随访包括放射学、分子学、内窥镜和组织学评估。肠道超声(IUS)是一种无创措施,为指导 IBD 患者的治疗带来了希望。本研究旨在评估 IUS 在大流行期间对我们三级中心的 IBD 患者进行随访的有效性。这是一项在 COVID-19 大流行期间进行的前瞻性观察研究。我们使用 IUS 评估了接受维持性生物治疗的患者在基线和 6 个月随访时的 IBD 活动情况,并使用了以下参数:肠造影、分层、肠壁厚度 (BWT)、多普勒征(Limberg 分类)、淋巴结或纤维脂肪浸润的存在、肠道回声、瘘管或脓肿的存在。我们将 IUS 与治疗前基线的其他放射学参数、组织学和内窥镜评分进行了比较,同时将 IUS 与生物治疗 24 周前后的临床评分和实验室参数进行了比较。该队列包括 50 名已知的 IBD 患者,时间为 2021 年 6 月至 2022 年 1 月。实验室研究显示,血红蛋白指数、CRP 和粪便钙蛋白在基线和 24 周后均有明显改善。BWT、管腔直径、淋巴结存在、炎症体征和多普勒活动体征是检测改善情况最重要的参数。然而,粪便钙蛋白水平与超声参数之间没有明显的相关性。基线时的 MR 和 CT 肠造影、内窥镜参数和 IUS 参数之间存在正相关。IUS 是随访 IBD 患者的有效工具,尤其是在大流行时期。
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引用次数: 0
Leiomyosarcoma of vascular origin: lessons learned from misdiagnosis 血管源性 Leiomyosarcoma:从误诊中汲取的教训
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-26 DOI: 10.1186/s43055-024-01336-6
Mohamed Salah Ayyad, Mahmoud Fawzy Elbellasy, Amany Hassan, Mona Gad
Leiomyosarcoma (LMS) of vascular origin is a rare entity of soft tissue sarcomas. Although they arise mostly from retroperitoneal major vascular structures, some encountered cases may arise from the smaller vascular structures of the thigh as the femoral vein. Due to their origin from the vascular structures, they represent a diagnostic challenge as they may be misdiagnosed as deep vein thrombosis (DVT). We present a case of a 45-year-old woman with left femoral and iliac vein LMS that was previously described in the vascular ultrasound (US) report as extensive DVT involving the femoral and external iliac veins. The patient did not improve after receiving the prescribed anticoagulants. Seven months later, the patient underwent computerized tomography (CT) with contrast, revealing a soft tissue mass in the anatomical site of the left common femoral and external iliac veins. The patient underwent both US-guided tru-cut biopsy and incisional biopsy from the iliac lymph nodes which revealed leiomyosarcoma. The patient underwent both vascular ultrasound and magnetic resonance imaging of the pelvis and the left thigh at the time of the first presentation. Seven months later, she underwent contrast-enhanced CT of the abdomen and pelvis. The patient was referred to the oncology department to receive the appropriate chemotherapy protocol as the tumor was inoperable. Although leiomyosarcoma of vascular origin is a rare entity of neoplasms, it is usually underestimated. A high index of suspicion would help the clinician to suspect such a neoplasm and save time for early diagnosis and management. Special caution should be taken for patients with venous thrombosis not improving on anticoagulants. When there is suspicion, other modalities such as computerized tomography and magnetic resonance imaging help confirm the diagnosis.
血管源性雷米肉瘤(LMS)是一种罕见的软组织肉瘤。虽然它们大多来自腹膜后的主要血管结构,但有些病例也可能来自大腿上较小的血管结构,如股静脉。由于其来源于血管结构,可能会被误诊为深静脉血栓(DVT),因此给诊断带来了挑战。我们接诊了一例 45 岁女性患者,她患有左股静脉和髂静脉 LMS,血管超声(US)报告曾将其描述为累及股静脉和髂外静脉的广泛深静脉血栓。患者在接受处方抗凝药物治疗后病情未见好转。七个月后,患者接受了造影剂计算机断层扫描(CT)检查,发现左侧股总静脉和髂外静脉解剖部位有一个软组织肿块。患者接受了 US 引导下的真切活检和髂淋巴结切口活检,结果显示为亮肌肉瘤。患者在首次就诊时接受了盆腔和左大腿血管超声和磁共振成像检查。七个月后,她接受了腹部和盆腔对比增强 CT 检查。由于肿瘤无法手术,患者被转到肿瘤科接受适当的化疗方案。虽然血管源性子宫肌瘤是一种罕见的肿瘤,但通常被低估。高怀疑指数有助于临床医生怀疑此类肿瘤,为早期诊断和治疗节省时间。对于静脉血栓患者,在使用抗凝剂后病情未见好转的情况下应特别小心。当有怀疑时,计算机断层扫描和磁共振成像等其他方式有助于确诊。
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引用次数: 0
Comparison of directly and indirectly estimated entrance skin dose (ESD) for diagnostic radiation qualities (RQR, RQA and RQT) using water phantom and shadowfree diagnostic chamber (SFD) 使用水模型和无影诊断室(SFD)直接和间接估算的诊断辐射质量(RQR、RQA 和 RQT)入口皮肤剂量(ESD)的比较
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-26 DOI: 10.1186/s43055-024-01337-5
Umar Hussain Haider, Babar Hussain, Wajeeha Shaheen, Shakeel Ur Rehman
The aim of this study was to find the entrance skin dose (ESD) for diagnostic radiation qualities RQRs, RQAs and RQTs given in IAEA technical report series No. 457 using direct and indirect methods of measurement. Measurements were done for 5 × 5, 10 × 10, 15 × 15, 20 × 20 and 25 × 25 cm2 field sizes and 70, 80, 90 and 100 cm source to surface distance (SSD) using shadow-free diagnostic (SFD) chamber and water phantom having dimension 30 × 30 × 30 cm3. ESD direct measurements were done by placing SFD chamber on the surface of water phantom, while in the case of indirect measurements, air kerma values were obtained. ESD values for different selected radiation qualities RQR2, RQR5, RQR8, RQR10, RQA2, RQA5, RQA8, RQA10, RQT8, RQT9 and RQT10 were found to be in the range of 0.0045–5.11 mGy per examination. Results obtained were found to be comparable with ESD values published in the literature. The obtained results in this research would help in establishing the national diagnostic reference levels (DRLs) which would help in the optimization of diagnostic imaging procedures. It would also help the radiographers to optimize field sizes and SSDs in order to reduce dose to the patients thereby ensuring good radiological practices, and this would reduce the stochastic risk to the patients caused by the ionizing radiations.
这项研究的目的是利用直接和间接测量方法,找出国际原子能机构技术报告系列第 457 号中给出的诊断辐射质量 RQR、RQAs 和 RQT 的入口皮肤剂量(ESD)。使用无影诊断(SFD)室和尺寸为 30 × 30 × 30 立方厘米的水模型,对 5 × 5、10 × 10、15 × 15、20 × 20 和 25 × 25 平方厘米的磁场尺寸以及 70、80、90 和 100 厘米的源到表面距离(SSD)进行了测量。静电放电直接测量是将无影诊断室放在水模型表面上进行的,而间接测量则是通过空气开玛值获得的。结果发现,不同辐射质量 RQR2、RQR5、RQR8、RQR10、RQA2、RQA5、RQA8、RQA10、RQT8、RQT9 和 RQT10 的 ESD 值范围为每次检查 0.0045-5.11 mGy。所得结果与文献中公布的 ESD 值相当。这项研究的结果将有助于建立国家诊断参考水平(DRLs),从而优化诊断成像程序。它还有助于放射技师优化磁场大小和固态硬盘,以减少病人受到的剂量,从而确保良好的放射操作,这将减少电离辐射对病人造成的随机风险。
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引用次数: 0
Advanced MRI-based evaluation of gray and white matter changes in Parkinson’s disease 基于核磁共振成像的帕金森病灰质和白质变化高级评估
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-26 DOI: 10.1186/s43055-024-01340-w
Mohamed Mohsen, Nehal Aboubakr Elsayed Mohamed, Abdelhalim El-Tantawy Mohamed Bedir, Ahmed Abdel Khalek Abdel Razek, Ahmed Effat Abbas Mohamed Saied
Parkinson’s disease (PD) is the most common movement disorder and the second most common neurodegenerative disease. The aim of our study was to compare gray–white matter changes (GWC) between Parkinson's disease (PD) patients and age-matched healthy control group as well as comparing GWC between different stages of PD (early and complicated). Our study was prospective cross-sectional case–control observational study with analytic component conducted on twenty patients and ten controls without any signs or symptoms of PD or any history of PD in first-degree relatives. All patients and controls were tested for history taking with stress on resting tremors, rigidity, gait abnormalities, postural instability and any symptoms of cognitive impairment, clinical examination including general examination and neurological examination. Also diffusion tensor imaging (DTI) with fiber tracking (tractography) and susceptibility-weighted MR imaging were performed for all cases. As regards DTI and evaluation of fractional anisotropy (FA) and mean diffusivity (MD) values between PD cases and healthy controls, the cases group showed significant decrease in FA values at substantia nigra on both sides and left cingulum as well as significant increase in MD values at substantia nigra on both sides and corpus callosum. Also, there are significant decrease in FA values at substantia nigra on both sides and significant increase in MD values at substantia nigra on both sides and right cingulum in late parkinsonism when compared to early parkinsonism. A cutoff FA value of 0.945 at right substantia nigra and cutoff FA value of 0.585 at left substantia nigra showed significant AUC that could differentiate between cases and controls. Also cutoff MD value of 0.791 at right substantia nigra and cutoff MD value of 0.813 at left substantia nigra showed significant AUC that could differentiate between cases and controls. Diffusion tensor imaging showed valuable role in evaluation of gray–white matter changes in Parkinson's disease. Also, it helps to assess degree of gray–white matter changes when comparing late parkinsonism to early parkinsonism through evaluation of FA and MD values at corpus callosum, substania nigra, and cingulum.
帕金森病(PD)是最常见的运动障碍,也是第二大神经退行性疾病。我们的研究旨在比较帕金森病(PD)患者与年龄匹配的健康对照组之间的灰白质变化(GWC),并比较帕金森病不同阶段(早期和复杂期)的灰白质变化。我们的研究是一项前瞻性横断面病例对照观察研究,其中包括分析部分,研究对象是 20 名患者和 10 名对照组,他们没有任何帕金森病的症状或体征,一级亲属中也没有任何帕金森病病史。所有患者和对照组均接受了病史采集,重点是静止性震颤、僵直、步态异常、姿势不稳和任何认知障碍症状,以及包括全身检查和神经系统检查在内的临床检查。此外,还对所有病例进行了纤维追踪弥散张量成像(DTI)和感度加权磁共振成像。在 DTI 和分数各向异性(FA)及平均扩散率(MD)值评估方面,PD 病例与健康对照组相比,病例组两侧黑质和左侧脑室的 FA 值显著降低,两侧黑质和胼胝体的 MD 值显著升高。此外,与早期帕金森病相比,晚期帕金森病患者两侧黑质的 FA 值明显下降,两侧黑质和右侧胼胝体的 MD 值明显上升。右侧黑质的FA临界值为0.945,左侧黑质的FA临界值为0.585,显示出显著的AUC,可以区分病例和对照组。此外,右侧黑质的MD临界值为0.791,左侧黑质的MD临界值为0.813,显示出显著的AUC,可区分病例和对照组。弥散张量成像在评估帕金森病患者灰白质变化方面具有重要作用。此外,在比较晚期帕金森病和早期帕金森病时,通过评估胼胝体、黑质和齿状体的 FA 值和 MD 值,有助于评估灰白质变化的程度。
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引用次数: 0
Intraventricular presentation of Rosai–Dorfman disease: a case report with review of literature 罗赛-多夫曼病的脑室内表现:病例报告与文献综述
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-23 DOI: 10.1186/s43055-024-01329-5
Saranya Ravi, Diya Bajaj, Nishtha Yadav, Shailendra Ratre, Sonjjay Pande
Rosai–Dorfman disease (RDD)/sinus lymphohistiocytosis is a rare benign lymphoproliferative disorder. Only 25% show extra-nodal manifestation, only 5% are seen involving the CNS, with intraventricular manifestation rarely reported. Our aim was to highlight important imaging features which would be useful in considering this entity as one of the differentials while encountering this rare entity. We present a case of a 34-year-old female with complaints of headache, altered behavior and visual disturbances. MRI brain showed T2 hypointense lesion arising from the left choroid plexus with dense homogenous enhancement, with multiple additional extra-axial dural-based lesions and a small lesion involving right choroid plexus. Left parietal craniotomy was done, and the lesion was excised. Histopathology showed large foamy macrophages in eosinophilic background, with lymphophagocytosis (emperipolesis), confirming the diagnosis of Rosai–Dorfman disease. Intraventricular Rosai–Dorfman disease is a rare entity. Imaging features of T2 hypointense homogenously enhancing lesion with blooming on GRE, without features of calcification or hemorrhage, may be helpful in prompting adequate histopathologic evaluation.
罗赛-多夫曼病(RDD)/窦性淋巴组织细胞增多症是一种罕见的良性淋巴增生性疾病。只有25%的患者有结节外表现,只有5%的患者累及中枢神经系统,而脑室内表现很少见报道。我们的目的是强调重要的影像学特征,以便在遇到这种罕见疾病时将其作为鉴别诊断之一。我们报告了一例 34 岁女性的病例,主诉头痛、行为改变和视觉障碍。脑部核磁共振成像显示,T2低密度病变来自左侧脉络丛,呈致密均匀强化,伴有多个额外的轴外硬脑膜病变和一个累及右侧脉络丛的小病变。医生进行了左顶叶开颅手术,切除了病灶。组织病理学显示,在嗜酸性粒细胞背景下有大量泡沫状巨噬细胞,并伴有嗜淋巴细胞增多症(emperipolesis),确诊为罗赛-多夫曼病。脑室内罗赛-多夫曼病是一种罕见病。T2低密度均匀增强病变的影像学特征在GRE上呈花斑状,无钙化或出血特征,可能有助于进行充分的组织病理学评估。
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引用次数: 0
Momentousness of integration of the high-resolution computed tomography scoring systems with pulmonary artery systolic pressure measurement for inference of idiopathic pulmonary fibrosis severity 将高分辨率计算机断层扫描评分系统与肺动脉收缩压测量相结合以推断特发性肺纤维化严重程度的重要性
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-22 DOI: 10.1186/s43055-024-01333-9
Sara Mahmoud Ragaee, Alyaa Mohamed Ali EL Shamsy, Mohamed Abdel Ghany Shweel, Ahmed Hussein Kasem, Hassan Ali Ahmed Mahmoud
The importance of high-resolution computed tomography (HRCT) in the diagnosis of idiopathic interstitial pneumonia (IIP) is being recognized more and more. Pulmonary arterial hypertension is common in patients with idiopathic pulmonary fibrosis, the presence of PAH is linked to higher mortality rates and might explain why some people who otherwise have normal pulmonary function are displaying symptoms of deterioration. The aim of this work was to find out the potency of integration of high-resolution computed tomography (HRCT) scoring system with pulmonary artery systolic pressure (PASP) for ascertaining the disease severity of patients with idiopathic pulmonary fibrosis and to predict the prognosis for proper management, along with incorporation of the key disparity of different HRCT scoring systems for the ILD. This prospective study included 80 patients, who came with idiopathic pulmonary fibrosis. A strong positive correlation (r = 0.989) was noted between total lung zone HRCT score and PASP, pulmonary artery size, grades of dyspnea and PCO2. Nonetheless, total lung zone HRCT score proved to have good correlation and inversely proportional to (r = − 0.71) 6MWT, PO2, SPO2, FVC and FEV1/FVC. We utilized a ROC curve to identify the optimal cutoff value in HRCT scoring systems, for detecting pulmonary hypertension associated with the IPF. The sensitivity and specificity of Warrick score cutoff value was higher compared to that of the HRCT scoring system-based grading scale. Both HRCT scoring systems attained high correlation coefficient factors with various incorporated parameters in the study. We can safely say that in order to reveal the severity and prognosis of idiopathic pulmonary fibrosis, a high-resolution computed tomography scoring system should be incorporated with echocardiography measurement of pulmonary artery systolic pressure —which proved to be the most potent predictive factor; especially when measured after a specific HRCT score cutoff value—followed by (FEV1/FVC), the 6MWT and the severity of dyspnea. Their integration collectively will aid in precise management and follow-up of IPF cases. Both HRCT scoring systems proved to be potent and perfect for short-term interval follow-up, yet the Warrick score was easier and faster to use and attained relatively increased sensitivity and specificity for the cutoff value of the pulmonary hypertension detection compared to the HRCT scoring system-based grading scale.
高分辨率计算机断层扫描(HRCT)在特发性间质性肺炎(IIP)诊断中的重要性日益得到认可。肺动脉高压在特发性肺纤维化患者中很常见,PAH的存在与较高的死亡率有关,也可以解释为什么一些肺功能正常的人却出现了肺功能恶化的症状。这项研究的目的是发现高分辨率计算机断层扫描(HRCT)评分系统与肺动脉收缩压(PASP)的整合在确定特发性肺纤维化患者的疾病严重程度和预测预后以进行适当管理方面的有效性,同时结合不同 HRCT 评分系统对 ILD 的关键差异。这项前瞻性研究纳入了 80 名特发性肺纤维化患者。总肺区 HRCT 评分与 PASP、肺动脉大小、呼吸困难等级和 PCO2 之间存在很强的正相关性(r = 0.989)。然而,肺区 HRCT 总分被证明与 6MWT、PO2、SPO2、FVC 和 FEV1/FVC 具有良好的相关性和成反比关系(r = - 0.71)。我们利用 ROC 曲线确定了 HRCT 评分系统检测 IPF 相关肺动脉高压的最佳临界值。与基于 HRCT 评分系统的分级表相比,Warrick 评分临界值的灵敏度和特异性更高。两种 HRCT 评分系统都与研究中的各种综合参数具有较高的相关系数。我们可以有把握地说,为了揭示特发性肺纤维化的严重程度和预后,高分辨率计算机断层扫描评分系统应与超声心动图测量肺动脉收缩压相结合,后者被证明是最有效的预测因素;尤其是在特定的 HRCT 评分临界值之后测量时,其次是(FEV1/FVC)、6MWT 和呼吸困难的严重程度。将它们整合在一起将有助于对 IPF 病例进行精确管理和随访。事实证明,这两种 HRCT 评分系统都很有效,非常适合短期间歇性随访,但与基于 HRCT 评分系统的分级表相比,Warrick 评分更简单、更快捷,而且在肺动脉高压检测的临界值方面,Warrick 评分的敏感性和特异性也相对更高。
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引用次数: 0
Can a fast T2-Dixon sequence surpass the time obstacle of whole-body MRI in the evaluation of skeletal metastases? 在评估骨骼转移时,快速 T2-Dixon 序列能否超越全身磁共振成像的时间障碍?
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-19 DOI: 10.1186/s43055-024-01314-y
Mostafa Elmansy, Noha Magdi, Mohammed A. Elhawary, Amina Sultan
Whole-body magnetic resonance imaging (WB-MRI) has shown its accuracy in the diagnosis of skeletal metastases in patients with known primary solid cancers. The standard protocol was a combination of T1 and short tau inversion recovery (STIR) sequences. Herein, this study was conducted to elucidate the role of the T2-Dixon sequence as a rapid alternative to the standard protocol with the assessment of its diagnostic accuracy and comparability to the established methodology. This prospective study included 30 patients with primary solid malignancies who underwent WB-MRI. The sequences obtained were T1WI, STIR, and T2-Dixon (fat-only and water-only images). Skeletal metastases were evaluated in each sequence. Results were compared between the T1-STIR combination and T2-Dixon fat and water reconstructions. The sensitivity of fat and water reconstructions from a single T2-Dixon in the detection of lytic skeletal metastases was marginally superior to a combination of T1WI and STIR sequences (0–7%). Detection of mixed lesions demonstrated equally high sensitivity in both protocols. Sclerotic metastases detection in WB-MRI showed low sensitivity in both protocols. However, specificity surpassed 95% for all lesion types in both protocols. Overall image quality was favored (in 87–90% of patients) in T2-Dixon images. The overall estimated acquisition timing using T2-Dixon appeared to be approximately half that of the standard T1-STIR combination. WB-MRI using T2-Dixon fat and water reconstructions showed similar accuracy to T1WI and STIR combination in the evaluation of skeletal metastases in patients with primary solid cancers with significantly shorter acquisition time.
全身磁共振成像(WB-MRI)在诊断已知原发性实体癌患者的骨骼转移方面显示出其准确性。标准方案是结合 T1 和短头绪反转恢复(STIR)序列。本研究旨在阐明 T2-Dixon 序列作为标准方案快速替代方案的作用,评估其诊断准确性以及与既定方法的可比性。这项前瞻性研究纳入了 30 名接受 WB-MRI 检查的原发性实体恶性肿瘤患者。获得的序列为 T1WI、STIR 和 T2-Dixon(纯脂肪和纯水图像)。每个序列都对骨骼转移进行了评估。比较了 T1-STIR 组合与 T2-Dixon 脂肪和水重建的结果。单个 T2-Dixon 脂肪和水重建在检测溶解性骨骼转移瘤方面的灵敏度略高于 T1WI 和 STIR 序列组合(0-7%)。两种方案对混合病灶的检测具有同样高的灵敏度。在两种方案中,WB-MRI 检测硬化性转移灶的灵敏度都较低。不过,两种方案对所有病变类型的特异性都超过了 95%。T2-Dixon 图像的总体图像质量较好(87-90% 的患者)。使用 T2-Dixon 的总体估计采集时间似乎约为标准 T1-STIR 组合的一半。在评估原发性实体癌患者的骨骼转移时,使用 T2-Dixon 脂肪和水重建的 WB-MRI 显示出与 T1WI 和 STIR 组合相似的准确性,而且采集时间明显更短。
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引用次数: 0
The dilemma of mediastinal lymphadenopathy between invasive and non-invasive procedures: ROC analysis of T2WI and DWI-MRI advanced parameters correlated with PET-CT and biopsy 纵隔淋巴结病在侵入性和非侵入性手术之间的两难选择:T2WI和DWI-MRI高级参数与PET-CT和活组织检查相关性的ROC分析
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-19 DOI: 10.1186/s43055-024-01331-x
Hadeer Elkelawy, Adel Rizk, Abdelaziz Elnekeidy, Ayman Baess, Mohamed Meheissen, Ahmed Samir
The characterization of pathologically enlarged mediastinal lymph nodes is clinically essential for effective disease management and accurate prognosis. Malignancy (metastases and lymphoma) and granulomatous conditions (sarcoidosis and tuberculosis) are the most common causes. Magnetic resonance imaging (MRI) is a good modality to characterize the mediastinal pathologically enlarged lymph nodes based on the excellent soft tissue contrast. It can save high-risk patients from radiation exposure and hazards of intervention such as general anesthesia and biopsy. To estimate the accuracy of different advanced MRI quantitative parameters in the differentiation between benign and malignant mediastinal lymphadenopathy. This would involve the lesion-to-cord signal intensity ratio (SIR) in the T2-WI and diffusion weighted image (DWI), the lesion-to-chest wall muscle SIR in T2-WI and DWI, and the mean apparent diffusion coefficient (ADC) values. These values would be correlated with the prospective pathological data and the results of the positron emission tomography (PET-CT). Prospectively, the study was conducted during the period between June 2022 and September 2023 on 45 patients with indeterminate or suspicious mediastinal lymphadenopathy identified by CT. MRI examination, PET-CT, and biopsy were applied for all patients. The intra-class correlation coefficient ranged between 0.89 and 0.95. (A) The lesion-to-cord SIR in T2-WI in the malignant group (1.49 ± 0.30) was higher than that in the benign group (0.83 ± 0.24) with P < 0.001. The statistically calculated cutoff value (> 1.2) estimated 90% sensitivity, 100% specificity, with AUC = 0.989. (B) The lesion-to-chest wall muscle SIR in T2-WI in malignant nodes (3.13 ± 0.84) was significantly higher than that in the benign nodes (1.90 ± 0.80) with P < 0.001. The statistically calculated cutoff value (> 2.4) estimated 86.67% sensitivity, 86.67% specificity, with AUC = 0.88. (C) The lesion-to-cord signal SIR in b500-DWI in the malignant node (1.80 ± 0.54) was higher than that in the benign group (0.75 ± 0.29) with P < 0.001. The statistically calculated cutoff value (> 1.2) estimated 100% sensitivity and specificity with AUC = 1.00. (D) The lesion-to-chest wall SIR in b500-DWI in the malignant node (6.43 ± 1.28) was higher than that in the benign node (2.63 ± 0.94) with P < 0.001. The statistically calculated cutoff value (> 4.1) estimated 96.67% sensitivity, 100% specificity, with AUC = 0.997. € The mean ADC values in the malignant nodes (0.83 ± 0.20 × 10–3 mm2/s) were significantly lower than that in the benign nodes (1.85 ± 0.19 × 10−3 mm2/s) with P < 0.001. The statistically calculated cutoff value (≤ 1.2) estimated 100% sensitivity and specificity with AUC = 1.00. Biopsy remains the main diagnostic modality for the characterization of mediastinal lymphadenopathy despite its hazards and limitations. This study proved that MRI could be accepted as an alternative non-invasive imaging tool that can overco
病理纵隔淋巴结肿大的特征对于有效的疾病管理和准确的预后至关重要。恶性肿瘤(转移瘤和淋巴瘤)和肉芽肿病(肉样瘤病和结核病)是最常见的病因。磁共振成像(MRI)具有良好的软组织对比度,是确定纵隔病理性肿大淋巴结特征的良好方式。它能使高危患者免于暴露于辐射,并避免全身麻醉和活组织检查等干预措施带来的危害。评估不同的先进磁共振成像定量参数在区分良性和恶性纵隔淋巴结病方面的准确性。这包括 T2-WI 和弥散加权成像(DWI)中病灶与脐带的信号强度比(SIR)、T2-WI 和 DWI 中病灶与胸壁肌肉的信号强度比(SIR)以及平均表观弥散系数(ADC)值。这些值将与前瞻性病理数据和正电子发射计算机断层扫描(PET-CT)结果相关联。这项前瞻性研究于 2022 年 6 月至 2023 年 9 月期间进行,对象是 45 名经 CT 确定为纵隔淋巴结病的不确定或可疑患者。所有患者均接受了磁共振成像检查、PET-CT 和活组织检查。类内相关系数介于 0.89 和 0.95 之间。(A)恶性组 T2-WI 中病灶与脊柱的 SIR(1.49 ± 0.30)高于良性组(0.83 ± 0.24),P 1.2)估计灵敏度为 90%,特异性为 100%,AUC = 0.989。(B)恶性结节 T2-WI 中病灶到胸壁肌肉的 SIR(3.13 ± 0.84)明显高于良性结节(1.90 ± 0.80),P 2.4)估计敏感性为 86.67%,特异性为 86.67%,AUC = 0.88。(C)恶性结节中 b500-DWI 的病变-脐带信号 SIR(1.80 ± 0.54)高于良性组(0.75 ± 0.29),P 1.2)估计敏感性和特异性均为 100%,AUC = 1.00(D)恶性结节中 b500-DWI 的病变-胸壁信号 SIR(6.43 ± 1.恶性结节的平均 ADC 值(0.83 ± 0.20 × 10-3 mm2/s)明显低于良性结节(1.85 ± 0.19 × 10-3 mm2/s),P < 0.001。统计计算的临界值(≤ 1.2)估计敏感性和特异性均为 100%,AUC = 1.00。尽管活检有其危险性和局限性,但仍是确定纵隔淋巴结病特征的主要诊断方法。这项研究证明,核磁共振成像可作为一种替代性无创成像工具,克服 PET-CT 的局限性。T2-WI 和 DWI-MRI 中病变信号与脊髓和肌肉的比率与平均 ADC 值并列显示出很高的统计学准确性。
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引用次数: 0
Unusual cause of incomplete cauda equina syndrome: dermoid cyst with a split cord malformation case report 不完全性马尾综合征的不寻常病因:伴有脊髓分裂畸形的皮样囊肿病例报告
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-19 DOI: 10.1186/s43055-024-01334-8
Hamza Retal, Soumya EL Graini, Hafsa EL Ouazzani, Nadia Cherradi, Meriem Fikri, Najwa Echcherif El Kettani, Mohamed Jiddane, Firdaous Touarsa
Cauda equina syndrome is a surgical emergency caused by the compression of the lumbosacral nerves. The most frequent cause is discal herniation, while tumoral pathology in this region is rare, and congenital processes are less common. We report the case of a young 37-year-old male patient, admitted to the emergency room with an incomplete cauda equina syndrome. As medical history, a lumbar surgery 15 years ago was reported with no documentation. An MRI was performed, revealing a mass within the filum terminal exhibiting three components suggestive of a dermoid cyst accompanying a split cord malformation, which was confirmed by pathology. Various disorders may be associated to intradural dermoid cyst, such as lipoma, low-lying cord, hydromyelia or thick filum. Surgery is the treatment of choice, and MRI plays a crucial role in detecting associated abnormalities and determining surgery priorities.
马尾综合征是一种因腰骶部神经受压而引起的外科急症。最常见的病因是椎间盘突出症,而该区域的肿瘤病变很少见,先天性病变也不常见。我们报告了一例 37 岁男性患者的病例,他因不完全马尾综合征被送入急诊室。病史显示,患者 15 年前曾做过腰椎手术,但没有任何记录。经磁共振成像检查,发现在丝状端内有一个肿块,有三个组成部分,提示为伴有脊髓劈裂畸形的蝶形囊肿,病理证实了这一点。硬膜内蝶形囊肿可能与多种疾病有关,如脂肪瘤、低位脊髓、髓鞘积水或厚丝状物。手术是首选治疗方法,而磁共振成像在检测相关异常和确定手术优先顺序方面起着至关重要的作用。
{"title":"Unusual cause of incomplete cauda equina syndrome: dermoid cyst with a split cord malformation case report","authors":"Hamza Retal, Soumya EL Graini, Hafsa EL Ouazzani, Nadia Cherradi, Meriem Fikri, Najwa Echcherif El Kettani, Mohamed Jiddane, Firdaous Touarsa","doi":"10.1186/s43055-024-01334-8","DOIUrl":"https://doi.org/10.1186/s43055-024-01334-8","url":null,"abstract":"Cauda equina syndrome is a surgical emergency caused by the compression of the lumbosacral nerves. The most frequent cause is discal herniation, while tumoral pathology in this region is rare, and congenital processes are less common. We report the case of a young 37-year-old male patient, admitted to the emergency room with an incomplete cauda equina syndrome. As medical history, a lumbar surgery 15 years ago was reported with no documentation. An MRI was performed, revealing a mass within the filum terminal exhibiting three components suggestive of a dermoid cyst accompanying a split cord malformation, which was confirmed by pathology. Various disorders may be associated to intradural dermoid cyst, such as lipoma, low-lying cord, hydromyelia or thick filum. Surgery is the treatment of choice, and MRI plays a crucial role in detecting associated abnormalities and determining surgery priorities.","PeriodicalId":11540,"journal":{"name":"Egyptian Journal of Radiology and Nuclear Medicine","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142203344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Swollen speech: a case study of tongue abscess detected via imaging technology 语音肿胀:通过成像技术发现舌脓肿的病例研究
IF 1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-08-13 DOI: 10.1186/s43055-024-01325-9
Anusha Rudrakshi, Praveenkumar Ramdurg, S. Naveen
A tongue abscess is a rare but serious condition marked by a localized accumulation of pus within the tongue’s tissues. Despite the tongue’s frequent exposure to trauma, bites, and foreign objects, it typically resists infections. However, an acute lingual abscess can be life-threatening due to the risk of airway obstruction from tongue swelling. Common symptoms include increasing pain, fever, swelling, immobility, edema, and redness of the tongue. The case report aimed to highlight the unusual clinical presentation and location of a deep-seated abscess in the anterior third of the tongue, as well as the radiographic approach to diagnosing the lesion. A 30-year-old female patient presented with sudden onset tongue pain and swelling persisting for 4–5 days. Clinical examination revealed a solitary diffuse swelling in the anterior two-thirds of the tongue, approximately 3 × 2 cm in size. Diagnostic imaging, including a plain radiograph, ultrasound (USG), and MRI, was conducted. The patient was hospitalized for incision and drainage of the abscess, followed by a 5-day course of intravenous antibiotics. A tongue abscess, though rare, is a serious condition indicated by tongue swelling, pain, fever, dysphagia, and dyspnea. Diagnosis involves physical examinations and imaging studies like ultrasound or MRI. Immediate treatment includes maintaining airway patency, draining the abscess, and administering broad-spectrum antibiotics. Prompt recognition and treatment are essential to prevent severe complications such as airway obstruction and sepsis. Regular follow-up ensures complete resolution and prevents recurrence.
舌头脓肿是一种罕见但严重的疾病,其特征是舌头组织内局部积脓。尽管舌头经常受到外伤、咬伤和异物的影响,但它通常能抵御感染。但是,急性舌脓肿可能会危及生命,因为舌头肿胀有可能导致呼吸道阻塞。常见症状包括疼痛加剧、发烧、肿胀、活动不灵、水肿和舌头发红。本病例报告旨在强调舌前三分之一处深层脓肿的不寻常临床表现和位置,以及诊断病变的放射学方法。一名 30 岁的女性患者突然出现舌头疼痛和肿胀,并持续了 4-5 天。临床检查发现,舌头前三分之二处有一个单发的弥漫性肿物,大小约为 3 × 2 厘米。医生对患者进行了影像学诊断,包括X光平片、超声波(USG)和核磁共振成像。患者住院进行了脓肿切开引流术,随后接受了为期 5 天的静脉抗生素治疗。舌脓肿虽然罕见,但却是一种严重的疾病,表现为舌头肿胀、疼痛、发烧、吞咽困难和呼吸困难。诊断需要进行体格检查和超声波或核磁共振成像等影像学检查。即时治疗包括保持呼吸道通畅、排出脓肿和使用广谱抗生素。及时发现和治疗对预防气道阻塞和败血症等严重并发症至关重要。定期随访可确保脓肿完全消退并防止复发。
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引用次数: 0
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Egyptian Journal of Radiology and Nuclear Medicine
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