摘要
目的分析肝海绵状血管瘤的ＭＲＩ表现并探讨最佳扫描方案。方法收集２８例经ＭＲＩ诊断的肝海绵状血管瘤，分析其ＭＲＩ表现。男１６例，女１２例，年龄３６～６８岁。均无明显临床症状。ＭＲＩ用０５Ｔ超导型机，常规Ｔ１加权及Ｔ２加权扫描后，再行重Ｔ２加权成像，ＴＲ＝４０００～６０００ｍｓ，ＴＥ＝１４０～１８０ｍｓ。１８例行ＧｄＤＴＰＡ增强扫描，９例为动态增强扫描。结果多发病灶１２例，单发１６例。瘤体在ＳＥＴ１加权像上呈低信号，在Ｔ２加权像上呈明显高信号，在重Ｔ２加权像上亦呈明显高信号，边缘均清楚锐利。增强扫描病灶呈明显持久强化，较大病灶呈向心性强化。
Purpose To analyse MRI
manifestations of cavernous hemangioma of liver and discuss proper MR pulse sequences.
Methods 28 cases of cavernous hemangioma of liver diagnosed by MRI were analysed. There
were 16 male and 12 female patients. The age ranged from 36 to 68 years. MR Scan was
performed on a 0.5T superconducting imager. Heavily T 2 weighted images (TR/TE=4000～
6000ms/120～180ms) were obtained after routine T 1WI and T 2WI sequeuces. Gd DTPA
contrast enhanced scan was performed in 18 cases including 9 dymamic scan. Results There
were 12 cases with multiple lesion and 16 cases with single lesion. The tumor appeared
hypointense on T 1WI and markedly hyperintense on T 2WI, it still appeared markedly
hyperintense on heavily T 2WI.The margins of tumor were clear and sharp. On enhanced scan,
the lesion showed obvious and lasting enhancement. Centripetal progressive enhancement
was found in cases with larger lesion.Conclusion Heavily T 2WI and Gd DTPA contrast
enhanced scan were diagnostic for cavernous hemangioma of liver.[
出处
《中国医学影像技术》
CSCD
北大核心
1999年第3期201-202,共2页
Chinese Journal of Medical Imaging Technology
