非增强磁共振静脉成像技术对盆腔深静脉疾病的诊断价值

发布时间：2018-12-11 03:51

【摘要】：目的探讨非增强磁共振静脉成像(MRV)技术对盆腔深静脉疾病的诊断价值。方法选取临床可疑盆腔及下肢静脉疾病患者50例,行下肢血管2D-TOF MRV(two-dimensional time-of-flight MR venography)检查。技术参数:回波时间5~7ms,重复时间35~45ms,翻转角35°~45°。检查范围包括下腔静脉下段至乆静脉水平,图像质量经评定分级。MRV检查结果与B超或DSA结果进行对比。结果 50例患者图像均能清晰显示下腔静脉下段至乆静脉及其分支,图像质量评分结果诊断率达96.0%;其中25例能清晰显示下腔静脉、髂总静脉、髂内外静脉、股总静脉、股深股浅静脉、乆静脉723条,其符合率为96.4%。50例患者中MRV提示9例下腔静脉下段至髂外静脉段血栓形成,而B超检查无法清晰完整显示及诊断。10例患者同时进行DSA检查,9例MRV结果与DSA符合,1例MRV提示髂总静脉起始段血栓者DSA造影显示正常。结论 MRV诊断盆腔及下肢静脉疾病具有无创、扫描范围大、对比度高、图像准确直观等优点,值得临床推广。
[Abstract]:Objective to evaluate the diagnostic value of non-contrast magnetic resonance venography (MRV) in pelvic deep vein disease. Methods 50 patients with suspected pelvic and lower extremity venous diseases were examined by 2D-TOF MRV (two-dimensional time-of-flight MR venography). Technical parameters: echo time 5 ~ 7 Ms, repetition time 35 ~ 45 Ms, turning angle 35 掳~ 45 掳. The range of examination was from the inferior vena cava to the body vein, and the image quality was evaluated and graded. The results of MRV were compared with those of B-ultrasound or DSA. Results the images of 50 patients showed clearly the inferior part of inferior vena cava to the body vein and its branches. The diagnostic rate of image quality score was 96.0. In 25 cases, the inferior vena cava, the common iliac vein, the internal and external iliac vein, the common femoral vein and the deep superficial femoral vein were clearly displayed. The coincidence rate was 96.40.50 cases of thrombus from inferior vena cava to external iliac vein were suggested by MRV in 9 cases, but B-ultrasonography could not be clearly and completely displayed and diagnosed. 10 cases were examined with DSA simultaneously, 9 cases with MRV and 9 cases with DSA. In one case, MRV showed that the initial thrombus of common iliac vein was normal on DSA. Conclusion the diagnosis of pelvic and lower extremity venous diseases by MRV has the advantages of noninvasive, wide scanning range, high contrast, accurate and visual image, and is worth popularizing in clinic.
【作者单位】：复旦大学附属中山医院青浦分院放射科;复旦大学附属中山医院青浦分院血管外科;
【基金】：上海市青浦区卫生局科研课题(2012-10)~~
【分类号】：R543;R445.2

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