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首页> 外文期刊>Medicine. >Using non-contrast-enhanced magnetic resonance venography for the evaluation of May-Thurner syndrome in patients with renal insufficiency: A case report
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Using non-contrast-enhanced magnetic resonance venography for the evaluation of May-Thurner syndrome in patients with renal insufficiency: A case report

机译：使用非对比度增强的磁共振静脉造影治疗肾功能不全患者May-Thenger综合征：案例报告

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Rationale: Contrast-enhanced computed tomographic venography (CTV) or magnetic resonance venography (MRV) are usually used to detect May-Thurner syndrome (MTS). However, both are associated with contrast-induced nephrotoxicity. For patients who cannot receive contrast media, non-contrast-enhanced MRV using three-dimensional (3D) turbo spin-echo (TSE) is considered an alternative. We report a case of MTS to describe its clinical utility and advantages. Patient concerns: A 49-year-old male experienced isolated left leg swelling and pain for half a month. He had a history of chronic renal insufficiency that made contrast-enhanced imaging studies inadequate. Diagnoses: A lower extremity venous Duplex scan showed a thrombus extending from the left distal femoral vein to the popliteal vein with valvular reflux, consistent with infrainguinal deep vein thrombosis (DVT). The suprainguinal DVT was evaluated by non-contrast-enhanced MRV . The results showed sandwich external compression of the left common iliac vein between the right common iliac artery and lumbar vertebrae, consistent with DVT of the left common iliac vein caused by MTS. Interventions: The patient received angioplasty with the implantation of a balloon-expandable stent over the left common iliac vein. Outcomes: Excellent recanalization of the left iliac vein was noted postoperatively. Lessons: In the evaluation of suprainguinal venous lesions, non-contrast-enhanced MRV presents the venous structure alone at high resolution without the accompanying arterial structure, which makes it an excellent diagnostic imaging tool for MTS. These findings indicate that non-contrast-enhanced MRV could be useful for detecting systemic venous pathologies in patients with renal insufficiency.
机译：理由：对比度增强的计算断层静脉静脉（CTV）或磁共振静脉静脉（MRV）通常用于检测5月 - TH综合征（MTS）。然而，两者都与对比引起的肾毒性有关。对于不能接收对比介质的患者，使用三维（3D）涡轮增压回波（TSE）的非对比增强MRV被认为是替代品。我们举报了MTS描述其临床效用和优势。病人担忧：一名49岁的男性经历了左腿肿胀和疼痛半月。他有慢性肾功能不全的历史，使对比增强的成像研究不足。诊断：下肢静脉双链扫描显示，从左侧远端股静脉向Popliteal静脉延伸的血栓，与valvular zhex，与初静脉血栓形成（DVT）一致。通过非对比度增强MRV评估SuprainginainAlDVT。结果表明，夹层外部压缩左髂动脉和腰椎之间的左常见髂静脉，与左髂静脉的DVT一致，由MTS引起。干预：患者接受血管成形术，植入球囊可膨胀支架在左常见的髂静脉上。结果：术后注意到左髂静脉的优异再生。经验教训：在评估Suprainginal静脉病变中，非对比增强MRV在没有随附的动脉结构的情况下以高分辨率呈现静脉结构，这使其成为MTS的优秀诊断成像工具。这些发现表明，非对比度增强的MRV可用于检测肾功能不全患者的全身静脉病理学。

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