Arlart I P, Guhl L, Fauser L, Edelman R R, Kim D, Laub G
Radiologisches Institut des Katharinenhospitals, Stuttgart.
Radiologe. 1991 Apr;31(4):192-201.
On the basis of the time-of-flight effect in 18 normal volunteers and 119 patients with different diseases of the abdominal veins (inferior vena cava, porto-splenic system, renal/hepatic/iliac veins) magnetic resonance (MR) angiograms were compared with the DSA, CT and US results. The MR technique included a series of 2D gradient-echo (Flash) images in which the patients held their breath and projection angiograms (PA) (MIP algorithm). PA of the inferior vena cava and renal veins had a sensitivity of 90% and a specificity of 88.8%. The results demonstrate that in all cases diseases of the large veins could be detected using all the MR information available. It is suggested that this method is so far not satisfactory in the evaluation of small vessels and slow intravascular flow conditions.
基于18名正常志愿者和119例患有不同腹部静脉疾病（下腔静脉、门脾系统、肾/肝/髂静脉）患者的飞行时间效应，将磁共振（MR）血管造影与数字减影血管造影（DSA）、计算机断层扫描（CT）和超声检查结果进行了比较。MR技术包括一系列二维梯度回波（快速成像稳态进动序列，FLASH）图像，患者需屏气，以及投影血管造影（PA）（最大密度投影算法，MIP）。下腔静脉和肾静脉的PA敏感度为90%，特异度为88.8%。结果表明，在所有病例中，利用所有可用的MR信息均可检测到大静脉疾病。提示该方法目前在评估小血管和血管内缓慢血流情况方面并不令人满意。
