文章摘要
王礼同,薛贞龙,李 澄.多层螺旋CT对肝脏高灌注异常的研究[J].南京医科大学学报,2008,28(10):1334~1336
多层螺旋CT对肝脏高灌注异常的研究
Investigation on hepatic high perfusion disorders with MSCT
投稿时间:2008-03-11  
DOI:10.7655
中文关键词: 肝脏  灌注异常  体层摄影术, X线计算机
英文关键词: liver  perfusion disorders  tomography,X-ray computed
基金项目:
作者单位
王礼同 扬州市第一人民医院影像科,江苏 扬州 225001 
薛贞龙  
李 澄  
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中文摘要:
      目的:分析多层螺旋CT(MSCT)3期增强扫描肝动脉期一过性肝脏高灌注异常的CT表现特征及其与基础疾病的关系,探讨其形成机制?方法:对1 148例患者行上腹部MSCT平扫后,于肘静脉开始注射对比剂后25?60?180 s分别行肝动脉期?门静脉期及平衡期3期增强扫描?结果:肝动脉期发现150例(150/1148,13.1%)肝脏高灌注异常,表现为楔形或三角形?片状或不规则形均匀性高密度区,多位于肝脏边缘部位;部分在门静脉期仍表现为稍高密度区;平衡期均表现为等密度?结论:MSCT3期增强扫描是目前研究肝脏高灌注异常的最佳方法,能够避免肝脏肿瘤和其他病变的假阳性或假阴性诊断和过高估计肝脏病变的大小,有助于判断部分疾病的病情和预后?
英文摘要:
      Objective:To analyze the CT indicating features of hepatic high perfusion disorders at the hepatic arterial phase during the MSCT 3-phases liver scanning and the relationship with fundamental diseases, and discuss the mechanism. Methods:One thousand one hundred and forty-eight cases were conducted with CT plain scanning at the hepatobiliary region. After the contrast injection at the elbow vein,the 3-phases scanning,i.e. arterial,portal venous and balance phase,was conducted at the time of 25 s,60 s and 180 s, respectively. Results:One hundred and fifty cases of hepatic high perfusion disorders were found at the arterial phase and the abnormal shape of wedge,triangle,block or irregular of uniform high density. Most of high perfusion disorders appeared at the edge of the liver. Part of them was still shown slightly high density at the portal venous phase, and they appeared equal-density at the balance phase. Conclusion:MSCT 3-phases enhancement scanning is the best method for studying the hepatic high perfusion disorders at present. It is capable of avoiding the false positive and false negative diagnosis of liver tumors and other diseases and exaggerating the sizes of liver lesions. It is helpful to determine the condition and prognosis of some diseases.
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