| High-field MR imaging of extracranial hematomas. | |
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MedLine Citation:
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PMID: 3493669 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The MR features of 20 extracranial hematomas studied on a 1.5-T system and imaged with both short repetition-time/echo-time (TR/TE) and long TR/TE pulse sequences were reviewed. In four of five acute hematomas (those less than 7 days of age), signal intensity was markedly decreased on long TR/TE images and was either intermediate or slightly decreased on short TR/TR images. Fourteen subacute hematomas (7 days to 7 weeks of age) and one chronic hematoma (9 months) were studied. The appearance of the subacute lesions varied from intermediate to high intensity on short TR/TE sequences, but all demonstrated increased signal on long TR/TE sequences. A low-signal rim was noted at the margin of nine subacute lesions. In one patient with this finding, pathologic examination showed that the low-signal margin corresponded to a region containing hemosiderin-laden macrophages at the periphery of the hematoma. These results correlate well with those reported for intracranial hematomas examined at this field strength. We conclude that analysis of signal-intensity patterns at 1.5 T is useful in staging the evolution of hematomas. |
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Authors:
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J I Rubin; J M Gomori; R I Grossman; W B Gefter; H Y Kressel |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 148 ISSN: 0361-803X ISO Abbreviation: AJR Am J Roentgenol Publication Date: 1987 Apr |
Date Detail:
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Created Date: 1987-04-09 Completed Date: 1987-04-09 Revised Date: 2008-02-15 |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 813-7 Citation Subset: AIM; IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Follow-Up Studies Hematoma / diagnosis*, pathology Humans Kidney Diseases / diagnosis Liver Diseases / diagnosis Magnetic Resonance Spectroscopy / diagnostic use* Male Middle Aged Retroperitoneal Space Thigh Thyroid Diseases / diagnosis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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