MRS在鞍旁海绵状血管瘤与脑膜瘤鉴别诊断中的应用

摘要

Objective To explore the value of WRS in the differential diagnosis of saddle cavernous hemangioma and meningi-oma.Methods The imaging data of 10 patients with saddle cavernous hemangioma and 6 patients with meningioma, who under-went the convertional MRI scanning , MRS, and enhanced scanning, were retrospectively analyzed in this work.Results It was difficult to identify the both tumors with conventional MRI scanning and enhanced scanning; The spectral characteristics of the cavernous angioma beside sella tursica were the peaks without the N-acetyl aspartate, Choline, Creatine peaks, and so on, but, with L-lipid peak clearly.The spectral characteristics of the meningioma beside sella tursica were peaks without N-acetyl aspartate and Creatine peak, but, with Choline peak clearly.Alanine peak can be seen in 3 cases and there were marked differences of MRS in both tumors.Conc lusion MRS has high value in the differential diagnosis of saddle cavernous hemangioma and meningi-oma.%目的：探讨磁共振波谱成像（ magnetic resonance spectroscopy， MRS）对鞍旁海绵状血管瘤和鞍旁脑膜瘤的鉴别诊断价值。方法回顾性分析经证实的6例鞍旁海绵状血管瘤和10例鞍旁脑膜瘤患者磁共振常规扫描、MRS及增强扫描影像资料进行分析。结果常规和增强扫描在二者鉴别上困难；鞍旁海绵状血管瘤波谱特点为无N-乙酰天门冬氨酸（ N-acetyl aspartate， NAA）、胆碱（ Choline， Cho）和肌酸（ Creatine， Cr）等峰，只见明显脂质（ Llipid， Lip）峰；鞍旁脑膜瘤无NAA、Cr等峰，均见明显Cho峰，3例可见丙氨酸峰（ Alanine， Ala），两者MRS表现具有明显差异性。结论 MRS在鞍旁海绵状血管瘤与鞍旁脑膜瘤的鉴别诊断中具有较高的价值。