Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.
Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea; Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea.
J Vasc Interv Radiol. 2021 Dec;32(12):1654-1660.e2. doi: 10.1016/j.jvir.2021.08.021.
This study aimed to evaluate the feasibility and added value of transcatheter dynamic contrast-enhanced magnetic resonance (MR) lymphangiography for nontraumatic lymphatic disorders. Five patients (2 males and 3 females; median age, 16.0 years; range, 3-74 years) who underwent both intranodal and transcatheter dynamic contrast-enhanced MR lymphangiography for suspected nontraumatic lymphatic leakages from June 2017 to January 2020 were included in this retrospective study. The imaging findings of both dynamic contrast-enhanced MR lymphangiography techniques were assessed for the presence of chylolymphatic reflux or direct sign of leakage. Intranodal dynamic contrast-enhanced MR lymphangiography demonstrated chylolymphatic reflux into the thoracic area in 2 patients (40%) but no direct evidence of leakage in any of the 5 patients. Transcatheter dynamic contrast-enhanced MR lymphangiography revealed chylolymphatic reflux and extravasation of the contrast agent in all 5 patients (100%). In conclusion, transcatheter dynamic contrast-enhanced MR lymphangiography may reveal additional signs of reflux and extravasation even when the findings of intranodal dynamic contrast-enhanced MR lymphangiography are negative.
本研究旨在评估经导管动态对比增强磁共振（MR）淋巴造影术在非创伤性淋巴疾病中的可行性和附加价值。本回顾性研究纳入了 2017 年 6 月至 2020 年 1 月期间因疑似非创伤性淋巴漏而接受经皮穿刺和经导管动态对比增强 MR 淋巴造影术的 5 例患者（2 例男性，3 例女性；中位年龄 16.0 岁；范围 3-74 岁）。评估了两种动态对比增强 MR 淋巴造影技术的影像学表现，以观察有无乳糜淋巴反流或直接漏出征象。经皮穿刺动态对比增强 MR 淋巴造影术显示 2 例（40%）患者的乳糜淋巴反流至胸部区域，但 5 例患者均无直接漏出证据。经导管动态对比增强 MR 淋巴造影术显示所有 5 例（100%）患者均存在乳糜淋巴反流和造影剂外渗。总之，即使经皮穿刺动态对比增强 MR 淋巴造影术结果为阴性，经导管动态对比增强 MR 淋巴造影术也可能显示出额外的反流和外渗征象。
