带有显著T2加权图像的磁共振成像：对脑损伤、肿瘤和水肿的显示得到改善。

Magnetic resonance with marked T2-weighted images: improved demonstration of brain lesions, tumor, and edema.

作者信息

Smith A S, Weinstein M A, Modic M T, Pavlicek W, Rogers L R, Budd T G, Bukowski R M, Purvis J D, Weick J K, Duchesneau P M

出版信息

AJR Am J Roentgenol. 1985 Nov;145(5):949-55. doi: 10.2214/ajr.145.5.949.

DOI:10.2214/ajr.145.5.949

PMID:3876752

Abstract

The object of this study was to determine the sensitivity of magnetic resonance (MR) for imaging intracranial lesions with heavily T2-weighted images compared with that of computed tomographic (CT) and T1-weighted images. Fifty-five patients with known intracranial pathology consisting of primary neurogenic tumors, brain infarcts, demyelinating disease, and metastases were studied by MR and CT. Patients were studied with either 0.6 or 1.5 T systems with T1- and T2-weighted radiofrequency pulse sequences. The heavily T2-weighted images were found to be superior to the T1-weighted images in terms of sensitivity, with 168 lesions found versus 86 by CT and 104 by T1-weighted imaging.

摘要

本研究的目的是确定与计算机断层扫描（CT）和T1加权图像相比，磁共振（MR）利用重T2加权图像对颅内病变进行成像的敏感性。对55例已知颅内病变（包括原发性神经源性肿瘤、脑梗死、脱髓鞘疾病和转移瘤）的患者进行了MR和CT检查。患者使用0.6或1.5 T系统及T1加权和T2加权射频脉冲序列进行检查。结果发现，在敏感性方面，重T2加权图像优于T1加权图像，前者发现168个病变，而CT发现86个，T1加权成像发现104个。