Arlart I P, Guhl L, Edelman R R
Radiologisches Institut, Katharinenhospital Stuttgart.
Rofo. 1992 Dec;157(6):584-90. doi: 10.1055/s-2008-1033067.
The staging of renal cell carcinoma (RCC) comprises exclusion of tumour expansion into the renal veins and the inferior vena cava (IVC). In 44 patients with RCC these vessels were examined using MRA on the basis of "time-of-flight" technique (coronal/axial 2D GE-flash-sequence, MIP-algorithm). The method was evaluated against contrast-enhanced CT and DSA in normal conditions and tumour-involved IVC (n = 12) and renal veins (n = 32) respectively. Following analysis of projection-angiograms (PA) and individual slices the results of MRA without contrast material included an information on vascular tumour extension that was identically safe as CT and DSA. In coronal slice orientation tumour extension into the vena cava was proven in 100%, and into the renal veins in 84%. Additional axial slices were necessary to demonstrate tumour extension into the renal veins in unclear cases. Single slices showed to be superior to PA for a correct identification of the size of the tumour thrombus.
肾细胞癌（RCC）的分期包括排除肿瘤向肾静脉和下腔静脉（IVC）的扩展。在44例肾细胞癌患者中，基于“飞行时间”技术（冠状面/轴位二维梯度回波快速成像序列，最大密度投影算法）使用磁共振血管造影（MRA）对这些血管进行了检查。该方法分别在正常情况下以及肿瘤累及下腔静脉（n = 12）和肾静脉（n = 32）的情况下与增强CT和数字减影血管造影（DSA）进行了评估。在分析投影血管造影（PA）和各个层面后，未使用造影剂的MRA结果包含了与CT和DSA同样可靠的关于血管肿瘤扩展的信息。在冠状面层面方向，100%证实肿瘤扩展至腔静脉，84%证实扩展至肾静脉。在情况不明确的病例中，需要额外的轴位层面来显示肿瘤向肾静脉的扩展。对于正确识别肿瘤血栓的大小，单一层面显示优于PA。
