论文部分内容阅读
摘要目的确定1H-MRS是否有助于鉴别良恶性软组织肿瘤,评价1H-MRS数据与有丝分裂指数有无相关性。方法43例软组织肿瘤直径>15mm的病人接受了MR测量。6例因技术失败排除。检查采用1.5T单体素点解析波谱序列(PRESS),TR/TE=2000/150ms。感兴趣容积置于病灶内,避免纳入坏死区。所有病人
Abstract Objective To determine whether 1H-MRS can be used to identify benign and malignant soft tissue tumors and to evaluate the correlation between 1H-MRS and mitotic index. Methods 43 patients with soft tissue tumors> 15 mm in diameter underwent MR measurements. Six cases were ruled out due to technical failure. The inspection was performed on a 1.5T single elemental resolved spectral sequence (PRESS) with TR / TE = 2000 / 150ms. The volume of interest placed in the lesion, to avoid inclusion into the necrotic area. All patients