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目的 探讨肝血管瘤的螺旋CT新征象及其发生原因。方法 报道 3 6例肝血管瘤共 5 1个瘤灶 ,均作螺旋CT多期扫描。结果 在动脉期 :① 3 6例中 8例出现瘤周肝实质高灌注区 14处 ;② 9例肝血管瘤中出现 19支门脉早显。三期螺旋CT扫描中出现瘤周肝实质高灌注区和早显门脉分支的密度变化均有非常显著差异 (P <0 .0 1) ;这两个征象的发生率呈正相关 (r=0 .80 16,P <0 .0 5 )。结论 肝血管瘤这两个新征象的病理学基础可能是因瘤体内存在着不同水平的动门静脉瘘和分流等所致。
Objective To investigate the new signs of helical hemangiomas and their causes. Methods A total of 51 aneurysms of 36 hemangiomas were reported, all of which were performed multislice spiral CT. Results During the arterial phase, there were 14 cases of peritumoral liver parenchyma perfusion in 8 of 36 cases, and 19 cases of hepatic hemangioma appeared in 9 cases. The density of peritumoral parenchyma perfusion region and early portal vein branch in the three-phase spiral CT scan showed a very significant difference (P <0.01). The incidence of these two signs was positively correlated (r = 0 .80 16, P <0. 05). Conclusions The pathological basis of these two new signs of hepatic hemangioma may be due to the presence of different levels of arteriovenous fistula and shunt in the tumor.