Fritschy P, Terrier F
Institut für Diagnostische Radiologie der Universität, Inselspital, Bern, Schweiz.
Rofo. 1988 Mar;148(3):279-84. doi: 10.1055/s-2008-1048193.
We evaluated a bolus-chase technique designed to reduce the volume of contrast material and to shorten examination time during intravenous digital subtraction angiography (IV-DSA) of the lower limbs. With this technique, after a single injection of contrast material, two contiguous fields can be sequentially imaged (two-field DSA) using a step translated x-ray tube. 67 patients with peripheral vascular disease were studied. All examinations provided diagnostic information, so that in no instance additional intra-arterial injections were required. With the two-field DSA only 3.49 injections were needed in the average for five fields examined in each patient, resulting in a 30% reduction of contrast agent used.
我们评估了一种团注-追踪技术，该技术旨在减少造影剂用量，并缩短下肢静脉数字减影血管造影（IV-DSA）的检查时间。采用这种技术，在单次注射造影剂后，可使用步进平移X射线管对两个相邻区域进行连续成像（双区域DSA）。我们对67例周围血管疾病患者进行了研究。所有检查均提供了诊断信息，因此无一例需要额外进行动脉内注射。使用双区域DSA时，每位患者平均检查五个区域仅需3.49次注射，造影剂用量减少了30%。
