【摘要】 目的：评价螺旋ＣＴ作肝脏肿瘤早期增强扫描的作用。方法：用螺旋ＣＴ对２５４例肝脏肿瘤患者作全肝早期增强扫描。以２～３ｍｌ／ｓ的速度经肘前静脉注入３００ｍｇＩ／ｍｌ的造影剂９０ｍｌ，在注射造影剂２５～４０ｓ时开始扫描，６０ｓ内扫完全肝。结果：与邻近肝组织相比，１３０例肝细胞性肝癌中有９８例呈高密度；３２例呈等或低密度：早期癌３例、弥漫型４型，病灶直径在１０ｃｍ以上者７例，有明显肝动脉—门静脉瘘者１８例。８７例肝转移瘤中有７４例呈环形增强。３７例海绵状血管瘤中１１处直径小于２ｃｍ病灶呈早期显著增强，较大的病灶呈向心性增强。结论：螺旋ＣＴ作肝脏早期增强扫描可如实显示肿瘤血供和血管受侵的情况，有利于病灶性质的鉴别和多血供多发病灶及小病灶的发现更多还原

【Abstract】 Purpose:To evaluate the role of spiral CT early enhanced scanning in liver neoplasms.Methods:Early enhancement scanning using spiral CT were performed in 254 patients with liver neoplasms.Beginning of scan was at 25～40 sec after the start of 90 ml (300mgI/ml)contrast medium be used to inject at a speed 2～3 ml/sec into antecubital vein.The whole live was scanned within 60sec.Results:98 of 130 cases with hepatocellular carcinoma(HCC) demonstrated hyperdense than hepatic tissue.In the other 32 cases,the lesions demonstrated iso-or hypodensity,of them,the early stage of HCC,diffuse HCC,the lesions being more than 10 cm in diameter and associated with hepatic arterio-portovenous fistula were 3,4,7 and 18 cases respectively.74 of 87 cases with metastases showed ring-like enhacement.37 cases of hepatic cavernous hemangioma showed early or centripetal enhancement.Conclusion:Spiral CT early enhancement scanning of liver could demonstrate the condition of blood supply to the neoplasm and the invasion of blood vessels.It was useful for differentiating lesions and detecting multiple and small lesions of hypervascular neoplasms.更多还原