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目的:总结垂体瘤磁共振的成像特点,判断垂体瘤磁共振的诊断价值。方法:选取我院收治的66例患者,利用超导型1.5T磁共振扫描机常规行冠状面与矢状面T1W1、冠状面T2W1进行扫描。结果:57例大腺瘤均行常规增强扫描,扫描结果可见不均匀强化,9例微腺瘤行常规增强扫描,其早期肿瘤信号普遍低于正常垂体组织,临床表现有闭经泌乳、肢端肥大、柯兴综合征、垂体功能低下等。结论:多数大腺瘤的形态比较规则,多数情况下呈现出分叶状、椭圆形或圆形,并且边界清晰,平扫T1W1的信号多数为低信号,而T2W1则多为高等信号。利用MRI可以很好的显示出垂体瘤的大小、位置以及与周围结构之间的关系,是垂体瘤首选影像学检查方法,可以为临床手术提供可靠依据。
Objective: To summarize the imaging features of magnetic resonance imaging of pituitary tumors and to evaluate the diagnostic value of magnetic resonance imaging of pituitary tumors. Methods: Sixty-six patients admitted to our hospital were scanned by using superconducting 1.5T magnetic resonance scanner with conventional T1W1 coronal plane and T2W1 coronal plane. Results: 57 cases of large adenoma were performed routine enhanced scanning, the scan results showed uneven enhancement, 9 cases of micro-adenoma routine enhanced scanning, the early tumor signal is generally lower than normal pituitary tissue, clinical manifestations of amenorrhea, acromegaly Cushing syndrome, hypopituitarism and so on. CONCLUSION: Most large adenomas are relatively regular in morphology. In most cases, they are lobulated, oval or circular with clear boundary. Most of the signals of T1W1 are low signals and T2W1 are mostly higher signals. The use of MRI can be very good pituitary tumor size, location and the relationship between the surrounding structure, is the preferred imaging examination of pituitary tumors, which can provide a reliable basis for clinical surgery.