磁敏感加权成像显示脑内出血。

Blood in the Brain on Susceptibility-Weighted Imaging.

作者信息

Jain Neeraj, Kumar Sunil, Singh Anuradha, Jain Shweta, Phadke Rajendra Vishnu

机构信息

Department of Radio Diagnosis, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.

Department of Pathology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.

出版信息

Indian J Radiol Imaging. 2022 Dec 7;33(1):89-97. doi: 10.1055/s-0042-1758880. eCollection 2023 Jan.

DOI:10.1055/s-0042-1758880

PMID:36855723

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9968548/

Abstract

Intraparenchymal brain hemorrhage is not uncommon and results from a wide variety of causes ranging from trauma to tumor. Many a time, it is not possible to determine the exact cause of non-traumatic hemorrhage on conventional magnetic resonance imaging (MRI). Susceptibility-weighted imaging (SWI) is a high-resolution (3D) gradient-echo sequence. It is extremely sensitive to the inhomogeneity of the local magnetic field and highly useful in identifying the small amount of hemorrhage, which may be inapparent on other MR pulse sequences. In this review, we present different pattern of an intra-parenchymal brain hemorrhage on SWI with emphasis on differential diagnosis.

摘要

脑实质内出血并不少见，由多种原因引起，从创伤到肿瘤。很多时候，在传统磁共振成像（MRI）上无法确定非创伤性出血的确切原因。磁敏感加权成像（SWI）是一种高分辨率（3D）梯度回波序列。它对局部磁场的不均匀性极其敏感，在识别少量出血方面非常有用，而这些出血在其他MR脉冲序列上可能不明显。在本综述中，我们展示了SWI上脑实质内出血的不同模式，并重点介绍鉴别诊断。