MRI对侵袭性垂体瘤的诊断价值及其临床意义
垂体肿瘤;磁共振成像;诊断,,],垂体肿瘤;磁共振成像;诊断,1对象与方法,2结果,3讨论,[参考文献]
[摘要]目的 研究MRI对侵袭性垂体瘤的诊断价值及其意义。方法 29例经手术病理证实的侵袭性垂体瘤病人,使用0.5 T的MRI机,选用自旋回波行矢状位、轴位和冠状位T1 WI,轴位或冠状位PDWI、T2 WI,增强后行矢状位、轴位或冠状位T1 WI扫描,并与手术病理资料对比分析。结果 肿瘤多为等T1 等或长T2 信号。增强扫描呈均匀或不均匀强化。向周围组织浸润表现为鞍底受侵下陷,部分肿瘤突入蝶窦;颈动脉包绕,海绵窦受累;鞍隔突破等。10例MRI示0级浸润病例,术中证实均无海绵窦侵犯;14例MRI示1级浸润病例,3例证实肿瘤侵犯海绵窦,并包绕颈内动脉;20例MRI示2级海绵窦侵犯病例,15例证实有海绵窦侵犯;9例MRI示3级浸润病例,8例证实肿瘤侵入海绵窦及颈内动脉外侧间隙;5例MRI示4级浸润病例,术中证实均有海绵窦侵犯,并包绕颈内动脉。结论 MRI可为术前诊断垂体瘤的侵袭性提供依据,对选择手术方法和制定治疗方案有重要指导意义。[关键词] 垂体肿瘤;磁共振成像;诊断
THE VALUE OF MRI IMAGING AND ITS SIGNIFICANCE IN THE DIAGNOSIS OF INVASIVE PITUITARY ADENOMA
CHEN JING-JING, CHANG GUANG-HUI, GE YAN-MING, et al
(Department of Radiology, The Affiliated Hospital of Qingdao University Medical College, Qingdao 266003, China)
[ABSTRACT]ObjectiveTo assess the value and significance of MRI imaging in the diagnosis of invasive pituitary adenoma. MethodsTwenty-nine patients with invasive pituitary adenoma confirmed by surgery and pathology were imaged with sagittal, co-ronal T1 WI, or coronal PDWI and T2 WI, sagittal, coronal or T1 WI after Gd-DTPA injection ......
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