摘要
目的 (1)评估单次屏气半傅立叶采集单次激发快速自旋回波磁共振胆胰管造影(HASTE MRCP)对于胆系梗阻性疾患胆胰管的显示情况及对疾病诊断的准确性。 (2 )评估单次屏气HASTE MRCP与真稳态进动快速成像 (TrueFISP)T2 WI相结合在胆系梗阻性疾患诊断中的应用价值。方法 132例胆系梗阻患者术前行MR检查 (Siemens 1 5TMagnetomVision)。所有扫描序列均采用单次屏气快速扫描并配以体部相控阵线圈。扫描序列如下 :(1)HASTE MRCP ;(2 )TrueFISPT2 WI;(3)快速小角度激发 (FLASH)T1WI。所得结果与手术及病理所见进行对照。结果 单次屏气HASTE MRCP显示胆胰管优秀 ,病变轮廓勾画清晰。胆管梗阻定位准确性为 10 0 %。定性诊断准确性 :胆系结石为 10 0 % ;肿瘤为 92 7% ;总准确性为 96 2 %。TrueFISPT2 WI可直接显示胆管病变及病变对周围组织结构的影响。单次屏气HASTE MRCP与TrueFISPT2 WI相结合对胆系梗阻定性诊断准确性达 98 5 %。结论 (1)单次屏气HASTE MRCP是一种显示胆胰管优秀的MR成像技术。 (2 )单次屏气HASTE MRCP与TrueFISPT2 WI相结合利用造影及断层效果 ,通过显示胆道腔内外及邻近结构情况可提高梗阻性黄疸定性诊断准确性。并可对病变的严重程度作出判断 。
Objective (1) To evaluate the diagnostic accuracy of single breath hold HASTE MRCP in biliary obstructive diseases (2)To evaluate the applicable value in biliary obstructive disease combining single breath hold HASTE MRCP with true FISP T 2 *WI Methods 132 patients with biliary obstructive disease were performed MR examination (Siemens 1 5 T Magnetom Vision) All measurements were applied single breath hold technique and body array coil Frequency sequences: (1) HASTE MRCP; (2) True FISP T 2 *WI; (3) FLASH T 1WI The findings were compared with the results of operation and pathology Results Single breath hold HASTE MRCP could display cholangiopancreatic ducts and depict the margins of lesion clearly The levels of obstruction were accurate in 100%; the causes of obstruction were accurate in 100% in cholidocholithiasis group and 92 7% in carcinoma group; Total accuracy was 96 2% True FISP T 2 *WI could display the modalities of lesion directly The influence of the lesion to adjacent structure of biliary system could be visualized exactly The diagnostic accuracy was 98 5% in biliary obstructive disease combining single breath hold HASTE MRCP with true FISP T 2 * WI Conclusion (1) Single breath hold HASTE MRCP was an excellent MR technique in displaying cholangiopancreatic system (2) The combination single breath hold HASTE MRCP with true FISP T 2 *WI could improve the diagnostic accuracy in biliary obstructive disease, and could play an important role in diagnosis and treatment of obstructive jaundice
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2000年第2期106-109,共4页
Chinese Journal of Radiology
关键词
磁共振成像
胆管阻塞
胆道疾病
对比研究
Magnetic resonance imaging
Bile duct obstruction, extrahepatic
Biliary tract diseases
Comparative study
