经脾门静脉造影磁共振成像——肝脏灌注均匀度的研究  

A PRELIMINARY STUDY ON PERFUSION HOMOGENIZATION OF HEPATIC PARENCHYMA WITH MAGNETIC RESONANCE IMAGING DURING SPLENOPORTOGRAPHY (MRSP)

作　　者：钟群[1] 张雪林[2] 张玉忠[2] 郭涛[2] 昌仁民[2] 苍鹏[2] 陈斌[2] 于丽娟[2] 

机构地区：[1]福州总医院医学影像科 [2]第一军医大学南方医院影像中心

出　　处：《福州总医院学报》2004年第2期82-84,共3页Journal of Fuzhou General Hospital

摘　　要：目的:研究经脾门静脉造影磁共振成像(MRSP)在肝脏非病变区的灌注均匀度。方法:可疑肝脏占位性病变的患者16例,行MRSP检查。扫描分四个时相:平扫期、门静脉期、实质期和延迟期,测量不同时相肝实质和非病变性异常灌注区信号强度。结果:MRSP门脉期出现肝脏非病变区的异常灌注率为4/16,共8个灶,均为肝硬化患者,最多见为三角形或扇形(7/8),分布无规律。结论:MRSP在门静脉期存在不均匀灌注,但并不影响对病变的诊断;比较其它方法,MRSP可得到较均匀的肝脏门脉期强化。Objective: This article's aim is to evaluate the homogeneity of hepatic parenchyma enhancement with magnetic resonance imaging during splenoportography (MRSP), mainly in portal phase.Method: MRSP was performed in 16 patients who were suspected of potential focus lesions in their livers.Signal intensities of non - lesion perfusion abnormalities and their peri -parenchyma were meansured in all scanning phases in eluding unenhanced phase, protographic phase equilibrium phase and delayed phase. Results: 8 non-lesion perfusion abnormalities were observed on portal phase in 4 cases of all patients. The most appearance was triangle or sector types (occupied 7/8).And the locations were irrugular.Furthermore there were more non - lesion perfusion abnormalities in hepatic cirrhosis patients than other non - hepatic cirrhosis ones.Conclusion: Although nonlesion perfusion abnor malities still co - exiosted with MRSP, they could be identified easily by their characters so that the diagnoses were not changes. Moreover, MRSP could obtain more homogeneous enhancement of hepatic parenchma on portal phase than other methods such as CTAP (computed tomography during arterial portography) and MRAP (magnetic resonance imaging during arterial porto graph) .

关 键 词：灌注均匀度 磁共振成像 门静脉造影术 介入放射学 肝脏占位性病变 肝脏恶性肿瘤 

分 类 号：R735.7[医药卫生—肿瘤] R445.2[医药卫生—临床医学]