Cerebral microbleeds. Utility of SWI sequences

L. Martínez Camblor, J.M. Peña Suárez, M. Martínez-Cachero García, E. Santamarta Liébana, J. Rodríguez Castro, A. Saiz Ayala
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引用次数: 0

Abstract

Objectives

Define the concept of cerebral microbleeds (CMBs) and describe the most useful MRI sequences for detecting this finding.

Review the entities that most frequently present with CMBs and that may benefit from the use of susceptibility-weighted imaging (SWI) sequences.

Conclusions

SWI is a useful MRI sequence for the detection and characterization of microhemorrhages, venous structures and other sources of susceptibility in imaging.

SWI is particularly sensitive to local magnetic field inhomogeneities generated by certain substances and is superior to T2* GRE sequences for this assessment.

CMBs may be seen in different neurologic conditions, in certain infrequent clinical contexts and have a key role as a biomarker status in gliomas (ITTS) and as a marker of inflammatory activity in multiple sclerosis.

脑microbleeds。SWI序列的效用
目的定义脑微出血(CMBs)的概念,并描述最有用的MRI序列来检测这一发现。回顾最常出现CMBs的实体,以及可能受益于敏感性加权成像(SWI)序列的实体。结论sSWI是一种有用的MRI序列,可用于检测和表征微出血、静脉结构和其他影像学易感性来源。SWI对某些物质产生的局部磁场不均匀性特别敏感,在该评估中优于T2*GRE序列。CMBs可能出现在不同的神经系统疾病中,在某些罕见的临床情况下,并作为胶质瘤(ITTS)的生物标志物状态和多发性硬化症炎症活动的标志物发挥着关键作用。
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