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J Radiol. 1998 Feb;79(2):117-26.

[What is bright on T1 MRI scans?].

[Article in French]

Author information

1
Service de Radiologie, Hôpital Saint-Louis, Paris.

Abstract

The list of entities associated with a high signal intensity on T1-weighted images is extensive and classically includes fat, proteins, hemorrhage, melanin and gadolinium. However, additional entities may be responsible for abnormally high signal intensity on T1-weighted images. These include ion deposition in metabolic disorders, free radicals, increased proton density, flow phenomena, some artifacts, and new contrast agents. The aim of this article is to display both the common and uncommon causes for a high T1 signal intensity and to discuss the underlying mechanisms or attributable pathophysiology for this phenomenon.

PMID:
9757228
[Indexed for MEDLINE]

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