All that bleeds is not black: susceptibility weighted imaging of intracranial hemorrhage and the effect of T1 signal

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• 作者：Michael B. Salmela^a ; Shri H. Krishna^a ; Douglas J. Martin^a ; Sara Khanipour Roshan^a ; Alexander M. McKinney^a ; Huseyin G. Tore^a ; Brian Knaeble^b ; Jeffrey B. Rykken^a ; Zuzan Cayci^a ; Bharathi D. Jagadeesan^a ; ^{jagad002@umn.edu}
• 关键词：Susceptibility weighted imaging ; Intracranial hemorrhage ; MRI ; Subarachnoid hemorrhage
• 刊名：Clinical Imaging
• 出版年：2017
• 出版时间：January-February 2017
• 年：2017
• 卷：41
• 期：Complete
• 页码：69-72
• 全文大小：480 K
• 卷排序：41

文摘

To determine if intracranial hemorrhages (ICH) are always hypointense on Susceptibility weighted imaging (SWI) and to determine the effect of T1-signal intensity on the appearance of ICH in SWI series.MethodsSWI and T1-signal intensities of ICH were retrospectively studied in a series of patients. SWI signal intensities were statistically correlated with T1-signal intensities.ResultsIn a series of 57 MRI scans from 40 patients, ICH was hypointense in 19, mixed-intensity in 21, and hyperintense in 17. Hyperintensity of ICH on SWI was significantly associated with increased T1 signal (P<.001).ConclusionICH can have a varied appearance on SWI.