Shida, Hisao; Ohara, Itaru
October 1972
Angiology;Oct1972, Vol. 23 Issue 9, p575
Academic Journal
The existence of anatomical and functional arteriovenous shunts was demonstrated in the limbs by injecting radioiodinated macro-aggregated serum albumin into the feeding main artery. The size of shunt included those with about 20-50 mu;. Consequently, the degree of shunt could be analyzed. Scintiscanning after intraarterial injection of radioiodinated macroaggregated serum albumin into the limb may be used as one of the ancillary methods for the diagnosis of peripheral vascular diseases. Especially, the study is useful when the findings are compared with that of peripheral arteriography. In order to detect occlusions of arterial trees of the limbs without resorting to arteriography in those with peripheral arterial occlusive lesions, scanning of a suspected area of the extremities with a scintillation detector after injection of 131I labelled macroaggregated serum albumin (abbr. 131I MAA) into the main feeding artery was carried out. Occasionally, the site of occlusion of the main artery which was demonstrated by arteriography was consistent with the findings by scintiscanning. 1,2 However, the results wore not highly successful. Jones et al3 in 1965 reported that when 131I MAA was injected into the femoral artery, normal and abnormal patterns of regional blood flow had been observed. In our study, it became obvious that regional blood flow was greatly influenced with the collaterals depending on the site, extent and period of occlusion. In this study, the anatomical and functional collateral blood flow in man with occlusive vascular disease will be described.


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