320排CT曲面重组肝脏灌注成像的可行性研究

目的:探讨320排CT全肝灌注成像结合肝脏曲面重组(CPR)技术临床应用的可行性和价值.方法:36例患者(正常肝脏20例,肝细胞癌16例)行CT动态容积扫描,经图像后处理分别获得横轴面和曲面重组肝脏灌注图像.结果:正常肝脏在CPR和横轴面图像上测得的肝动脉灌注(HAP)值分别为(29.3±6.3)和(31.1±5.0)...

320 multidetector CT curved planar reformation technique in hepatic perfusion imaging

Objective：To investigate the clinical application and the value of 320 multidetector CT（MDCT） curved planar reformations（CPR） in hepatic perfusion.Methods：Thirty-six patients were analyzed.There were 20 patients in normal group,16 patients in hepatic cancer group.All patients underwent dynamic volume CT scan,then axial and CPR images were reconstructed separately to perfusion data at same location.Results：The HAP,PVP,BF,HPI and TTP measured from normal group were：（29.3±6.3）,（96.1±15.2） and（125.4±15.2）ml/（min·100ml）,（23.4±5.8）% and（19.2±3.2）s on CPR images.The corresponding perfusion data measured from normal group were：（31.1±5.0）,（94.3±12.7） and（124.5±15.6）ml/（min·100ml）,（24.8±6.2）% and（20.8±2.8）s,respectively,on axial images.The perfusion data measured from hepatic cancer group were：（61.8±5.7）,（32.8±4.5） and（254.8±20.5）ml/（min·100ml）,（65.3±6.1）% and（11.2±3.2）s on CPR images.The corresponding perfusion data measured from hepatic cancer group were：（62.3±5.3）,（33.4±5.3） and（257.4±21.8）ml/（min·100ml）,（66.1±6.7）% and（11.9±3.8）s,respectively,on axial images.There were no significant difference（P0.05） between the CPR and axial perfusion data.The TDC was similar between the axial and CPR perfusion of the same patients.Conclusion：There was no significant difference between the axial and CPR perfusion in diagnosing liver diseases.But aorta,portal vein,spleen and lesion in any position of the liver can be shown on one CPR perfusion image,especially lesions far from hepatic portal of liver.