摘要
目的：探讨MRI对胼胝体梗死的诊断价值，提高对胼胝体梗死的MRI表现及临床意义的认识。方法：回顾性分析25例胼胝体梗死患者的MRI和临床表现资料，男14例，女11例，年龄17～82岁，平均53．8岁。全部病例均以肢体无力、言语不清、意识障碍或反应迟钝就诊。所有患者均行常规颅脑MRI平扫，3例同时行MRI增强扫描，2例治疗后复查了MRI。结果：所有患者均存在胼胝体梗死，T1WI表现为低信号，T2WI及FLAIR为高信号，局限或弥漫性分布，波及胼胝体全层。病灶位于压部11例、膝部3例、体部1例；同时累及膝部及体部4例、体部及压部1例；单侧胼胝体全程受累5例。梗死灶沿胼胝体偏侧性分布（22例）明显多于对称性分布（3例），差异有统计学意义（Х^2=7．260，P〈0．05）。3例梗死灶增强扫描未见明显强化；2例治疗后复查MRI提示病灶明显缩小。结论：胼胝体梗死是临床急症之一，MRI可直观反映梗死灶部位及范围，是临床诊断胼胝体梗死最客观的参考指标。
Objective：To explore the diagnostic values of MR inaaging in corpus callosum infarction, and to improve the understanding of MRI manifestations and clinical significance.Methods：MRI and clinical data of 25 patients （include 14 males and 11 females, aged from 17 years to 82 years, mean age 53.8 years old） with corpus callosum infarction proved by MRI scanning and clinics were retrospectively analyzed. The symptoms of all patients included physically hypodynamia, lallation, disturbance of or reactional torpor. All patients underwent MRI plain scanning, of which 3 patients underwent plain and contrast-enhancement scanning both, 2 patients underwent MRI reexanfination one month later afer therapy. Results： Corpus callosmn infarction were detected by MRI in all patients, which expressed long T1 and long T2 signal intensity, and also high signal intensity in FLAIR, along corpus eallosmn locally or extensively. The lesions of splenium, genu and body of corpus eallesum were 11 cases, 3 eases and one case respectively; genu arid body 4 cases, body and splenium one case, diffuse of single-side 5 eases respectively. The lesions located at the corpus callusum unilaterally or asymmetrically were greatly more than ones at the corpus eallosum syrnnaetrieally, the difference is statistically significant （Х^2 = 7.260, P 〈 0.05）. The signal intensity of the 3 gases undergoing enhanced MRI scanning revealed no abnormal contrast enhancement. The lesions undergoing MRI recxamination of the 2 cases got smaller. Conclusion： Corpus eallosum infarction is one of the clinical emergency, MRI can detect the location and range of the lesions clearly, and MRI modality is the optimal reference for clinically diagnosing corpus callosum infarction.
出处
《医学影像学杂志》
2009年第12期1519-1522,共4页
Journal of Medical Imaging
关键词
胼胝体
梗死
磁共振成像
Corpus callusum
Infarction
Magnetic resonance imaging
