Godwin J D, Webb W R
Radiology. 1981 Mar;138(3):629-35. doi: 10.1148/radiology.138.3.7465840.
Rapid sequence (dynamic) computed tomography (CT) following the bolus injection of contrast material into a peripheral vein allows a differentiation of vascular and nonvascular lung lesions. The use of time-density curves plotting the changing CT number over time also allows pulmonary arterial supply of lung lesions to be distinguished from systemic (aortic) supply. Of four patients suspected of having pulmonary arteriovenous fistula, two were shown to have nonvascular lesions and two were shown to have vascular malformations by using dynamic CT. In one patient, a pulmonary vein varix was confirmed by using CT. In two patients, systemic arterial supply to abnormal lung was correctly diagnosed with CT; this finding was also shown in both patients by using arteriography. In some cases dynamic CT obviates arteriography; in others, it helps direct further evaluation.
在向外周静脉快速推注造影剂后进行快速序列（动态）计算机断层扫描（CT），可区分肺部的血管性和非血管性病变。绘制随时间变化的CT值的时间 - 密度曲线，也有助于区分肺部病变的肺动脉供血与体循环（主动脉）供血。在4例疑似肺动静脉瘘的患者中，通过动态CT检查，2例显示为非血管性病变，2例显示为血管畸形。1例患者经CT证实为肺静脉瘤样扩张。2例患者经CT正确诊断为异常肺部的体循环动脉供血；血管造影检查在这2例患者中也显示了相同结果。在某些情况下，动态CT可替代血管造影；在其他情况下，它有助于指导进一步评估。
