Finn J P, Zisk J H, Edelman R R, Wallner B K, Hartnell G G, Stokes K R, Longmaid H E
Department of Radiology, Harvard Medical School, Boston, MA.
Radiology. 1993 Apr;187(1):245-51. doi: 10.1148/radiology.187.1.8451422.
The authors evaluated time-of-flight magnetic resonance (MR) angiography in 30 patients with suspected thoracic venous occlusion. The results of the MR studies were compared with results at contrast venography in 22 patients and at central venous cannulation in seven of the remaining eight patients. Twenty-eight patients had abnormalities on MR venograms; 21 of these abnormalities involved multiple veins. Eight patients had superior vena cava (SVC) occlusion with retrograde azygos blood flow, and two patients had nonocclusive SVC thrombus. Fifteen patients had thrombosis involving the brachiocephalic veins; 14, involving the subclavian veins; and eight, involving the internal jugular veins. Correlation was excellent between findings of venous obstruction and occlusion at contrast venography and MR angiography. MR imaging provided more comprehensive information than catheter venography on central venous anatomy and blood flow. For evaluation of central veins, MR angiography is an accurate and graphic technique that may succeed in cases in which other methods may give inadequate findings or may be impossible to perform.
作者对30例疑似胸段静脉闭塞的患者进行了时间飞跃磁共振（MR）血管造影检查。将MR研究结果与22例患者的静脉造影结果以及其余8例患者中7例的中心静脉置管结果进行了比较。28例患者的MR静脉造影显示异常；其中21例异常累及多条静脉。8例患者出现上腔静脉（SVC）闭塞并伴有奇静脉逆流，2例患者有非闭塞性SVC血栓形成。15例患者的头臂静脉发生血栓形成；14例累及锁骨下静脉；8例累及颈内静脉。静脉造影和MR血管造影在静脉阻塞和闭塞的发现之间具有极好的相关性。MR成像在中心静脉解剖结构和血流方面比导管静脉造影提供了更全面的信息。对于中心静脉的评估，MR血管造影是一种准确且直观的技术，在其他方法可能得出不充分结果或无法进行的情况下可能会取得成功。
