Karnaze M G, Sartor K, Winthrop J D, Gado M H, Hodges F J
Radiology. 1986 Oct;161(1):77-82. doi: 10.1148/radiology.161.1.3763887.
The authors retrospectively evaluated the characteristics on magnetic resonance (MR) images of 59 suprasellar lesions and compared them with computed tomography (CT) scans in 55 of the cases in which CT was performed. A diverse number of lesions were included: 17 pituitary adenomas; eight optic or hypothalamic gliomas; six craniopharyngiomas; six vascular anomalies; four lesions with extension into the suprasellar space; three metastases; two each of meningioma, hamartoma, germinoma, sarcoid granuloma, and teratoma; and one each of lymphoma, optic tract hematoma, cerebrospinal fluid-borne metastasis, pituitary hyperplasia, and sphenoid sinus mucocele. MR enabled characterization of lesions containing hemorrhage, fat, flowing blood, mucus, and cyst and allowed more specific diagnoses than CT in 6% of cases. MR was equivalent to CT in allowing lesions to be detected and in 20% of cases more accurately defined altered perisellar anatomy. Vascular abnormalities can be better evaluated with MR, and use of angiography can be avoided in some cases.
作者回顾性评估了59例鞍上病变的磁共振（MR）图像特征，并将其中55例行计算机断层扫描（CT）的病例的MR图像与CT扫描结果进行了比较。纳入的病变种类多样：17例垂体腺瘤；8例视神经或下丘脑胶质瘤；6例颅咽管瘤；6例血管异常；4例延伸至鞍上间隙的病变；3例转移瘤；2例脑膜瘤、错构瘤、生殖细胞瘤、结节病肉芽肿和畸胎瘤；以及1例淋巴瘤、视束血肿、脑脊液播散性转移瘤、垂体增生和蝶窦黏液囊肿。MR能够对含有出血、脂肪、流动血液、黏液和囊肿的病变进行特征性描述，并且在6%的病例中比CT能做出更具体的诊断。在检测病变以及20%的病例中更准确地界定鞍周解剖结构改变方面，MR与CT相当。MR能更好地评估血管异常，在某些情况下可避免使用血管造影。
