脾门静脉造影磁共振成像中肝实质灌注均匀性
Perfusion homogeneity of hepatic parenchyma in magnetic resonance imaging during splenoportography.
作者信息
Zhong Qun, Zhang Xue-lin, Zhang Yu-zhong, Guo Tao, Chang Ren-min, Cang Peng, Chen Bin, Yu Li-juan
机构信息
Medical Diagnostic Imaging Center, Nanfang Hospital, First Military Medical University, Guangzhou 510515, China.
出版信息
Di Yi Jun Yi Da Xue Xue Bao. 2004 Feb;24(2):216-9.
OBJECTIVE
To evaluate the homogeneity of hepatic parenchyma enhancement in magnetic resonance imaging during splenoportography (MRSP) in the portal phase.
METHODS
MRSP was performed in 16 patients suspected of space-occupying lesions in the livers. The signal intensity of non-lesion abnormal perfusion areas and that of peripheral parenchyma were measured in all the scanning phases including unenhanced phase, portographic phase, equilibrium phase, and delayed phase.
RESULTS
Perfusion abnormalities were observed in 8 non-lesion foci in the portal phase in 4 cases of hepatic cirrhosis, most frequently appearing in triangle or fan-like shapes (7/8) with unpredictable locations. Hepatic cirrhosis patients had more non-lesion perfusion abnormalities than non-cirrhosis patients.
CONCLUSIONS
The presence of non-lesion perfusion abnormalities in MRSP does not affect the diagnosis of the disease, and more homogeneous enhancement of the hepatic parenchyma in the portal phase can be achieved in MRSP than in CT during arterial portography and magnetic resonance imaging during arterial portography.
目的
评估门静脉期脾门静脉造影磁共振成像（MRSP）过程中肝实质强化的均匀性。
方法
对16例怀疑肝脏存在占位性病变的患者进行MRSP检查。在包括平扫期、门静脉造影期、平衡期和延迟期在内的所有扫描阶段，测量非病变异常灌注区域及外周实质的信号强度。
结果
4例肝硬化患者在门静脉期的8个非病变灶观察到灌注异常，最常见的形态为三角形或扇形（7/8），位置不可预测。肝硬化患者的非病变灌注异常比非肝硬化患者更多。
结论
MRSP中非病变灌注异常的存在不影响疾病诊断，并且与动脉门静脉造影CT及动脉门静脉造影磁共振成像相比，MRSP在门静脉期可实现肝实质更均匀的强化。
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