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Invest Radiol. 1993 Apr;28(4):297-302.

Fatty infiltration of the liver. Quantification by 1H localized magnetic resonance spectroscopy and comparison with computed tomography.

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  • 1Istituto di Radiologia, UniversitĂ  degli Studi di Trieste, Italy.

Abstract

RATIONALE AND OBJECTIVES:

The authors evaluated the degree of fatty infiltration of the liver in subjects with diffuse liver steatosis using image-guided 1H localized MR spectroscopy and correlated the magnetic resonance (MR)-determined fat fraction with the computed tomography (CT) liver/spleen density ratio and histologic evaluation.

METHODS:

MR measurements were performed at 1.5 T by applying a double-spin-echo localization sequence. Twenty-six patients underwent MR and CT examinations and ultrasound (US)-guided biopsy. Additionally, three healthy volunteers underwent MR examination. Steatosis severity was estimated using 1) the ratio between fat and total MR signal areas; 2) the ratio between liver and spleen CT number; and 3) histologic score.

RESULTS:

The linear correlation between MR fat/fat-plus-water signal ratio and CT liver/spleen density values ratio is statistically significant. Both techniques correlate well with histologic score. No significant correlation exists between water or fat T2 values and the severity of steatosis.

CONCLUSIONS:

1H MR spectroscopy allows a noninvasive estimate of the hepatic fat content.

PMID:
8478169
[PubMed - indexed for MEDLINE]
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