Kucharczyk W, Davis D O, Kelly W M, Sze G, Norman D, Newton T H
Radiology. 1986 Dec;161(3):761-5. doi: 10.1148/radiology.161.3.3786729.
The magnetic resonance (MR) images of 28 patients with surgically confirmed pituitary adenomas were retrospectively evaluated. The examinations were performed on a 1.5-T superconducting MR system using a multisection spin-echo technique with 3-mm-thick sections and a 256 X 256 matrix. T1- and T2-weighted images were obtained in sagittal and coronal planes. The MR findings were correlated with detailed operative reports and diagrams. There were 11 microadenomas and 17 macroadenomas. Ten of the microadenomas and all of the macroadenomas were accurately localized and their extent delineated, particularly on T1-weighted coronal sections. Adenomas typically appeared hypointense on T1-weighted coronal sections. The appearance on T2-weighted images was variable, and generally the lesions were less well seen. Involvement of parasellar structures, particularly the optic chiasm and cavernous sinuses, was accurately depicted. Cyst formation and hemorrhage could be characterized in some instances. In general, there was excellent correlation between MR imaging and operative findings.
对28例经手术证实为垂体腺瘤的患者的磁共振（MR）图像进行回顾性评估。检查在1.5-T超导MR系统上进行，采用多层自旋回波技术，层厚3mm，矩阵为256×256。在矢状面和冠状面获得T1加权和T2加权图像。MR表现与详细的手术报告和示意图相关。有11例微腺瘤和17例大腺瘤。其中10例微腺瘤和所有大腺瘤均被准确定位并明确其范围，尤其是在T1加权冠状面上。腺瘤在T1加权冠状面上通常表现为低信号。T2加权图像上的表现各异，一般来说病变显示欠佳。鞍旁结构受累，尤其是视交叉和海绵窦，能被准确描绘。在某些情况下可对囊肿形成和出血进行特征性描述。总体而言，MR成像与手术结果之间具有极好的相关性。
