Friedrich J M, Merk J, Funk W, Arlart I P
Rofo. 1986 Jul;145(1):26-33. doi: 10.1055/s-2008-1048881.
In this study images of 1000 patients examined via transvenous DSA were analysed and the image quality scrutinised for each vascular region while determining the causes of image quality reduction. The results show that the diagnostic image quality was 98% (excellent/good 79%, fair: 19%) for a. carotis communis, 94% (69 and 25%, respectively) for carotid bifurcation, 84% (54%, 30%) for distal int. carotid arteries, 91% (65%, 26%) for vertebral arteries and 74% (45%, 29%) for basilar artery. Reasons for image quality reduction were artifacts due to movements by the patients, and were also due to vascular superposition. Reduced left ventricular function resulting in prolonged circulation time and dilution of contrast material was frequently combined with an advanced age of the patients (greater than 75 years). Our studies suggest that transvenous DSA is not useful in patients with significantly reduced cardiac output who do not cooperate properly and are of advanced age. It may, therefore, be omitted to avoid unnecessary stress and high cost. In such cases intraarterial DSA or conventional angiography is indicated.
在本研究中，对1000例经静脉数字减影血管造影（DSA）检查的患者图像进行了分析，在确定图像质量下降原因的同时，对每个血管区域的图像质量进行了仔细检查。结果显示，颈总动脉的诊断图像质量为98%（优/良：79%，尚可：19%），颈动脉分叉处为94%（分别为69%和25%），颈内动脉远端为84%（54%，30%），椎动脉为91%（65%，26%），基底动脉为74%（45%，29%）。图像质量下降的原因是患者移动导致的伪影，以及血管重叠。左心室功能降低导致循环时间延长和造影剂稀释，这常与患者高龄（大于75岁）相关。我们的研究表明，对于心输出量显著降低、配合不佳且高龄的患者，经静脉DSA并无用处。因此，为避免不必要的压力和高昂费用，可省略该检查。在这种情况下，应选择动脉DSA或传统血管造影。
