T2 mapping of hip articular cartilage in healthy volunteers at 3T: a study of topographic variation

Watanabe, Atsuya; Boesch, Chris; Siebenrock, Klaus; Obata, Takayuki; Anderson, Suzanne E (2007). T2 mapping of hip articular cartilage in healthy volunteers at 3T: a study of topographic variation. Journal of magnetic resonance imaging, 26(1), pp. 165-71. Hoboken, N.J.: Wiley Interscience 10.1002/jmri.21014

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PURPOSE: To perform baseline T(2) mapping of the hips of healthy volunteers, focusing on topographic variation, because no detailed study has involved hips. T(2) mapping is a quantitative magnetic resonance imaging (MRI) technique that evaluates cartilage matrix components. MATERIALS AND METHODS: Hips of 12 healthy adults (six men and six women; mean age = 29.5 +/- 4.9 years) were studied with a 3.0-Tesla MRI system. T(2) measurement in the oblique-coronal plane used a multi-spin-echo (MSE) sequence. Femoral cartilage was divided into 12 radial sections; acetabular cartilage was divided into six radial sections, and each section was divided into two layers representing the superficial and deep halves of the cartilage. T(2) of these sections and layers were measured. RESULTS: Femoral cartilage T(2) was the shortest (-20 degrees to 20 degrees and -10 degrees to 10 degrees , superficial and deep layers), with an increase near the magic angle (54.7 degrees ). Acetabular cartilage T(2) in both layers was shorter in the periphery than the other parts, especially at 20 degrees to 30 degrees . There were no significant differences in T(2) between right and left hips or between men and women. CONCLUSION: Topographic variation exists in hip cartilage T(2) in young, healthy adults. These findings should be taken into account when T(2) mapping is applied to patients with degenerative cartilage. J. Magn. Reson. Imaging 2007;26:165-171. (c) 2007 Wiley-Liss, Inc.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology > DCR Magnetic Resonance Spectroscopy and Methodology (AMSM) 04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery 04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology
UniBE Contributor:	Watanabe, Atsuya, Boesch, Christoph Hans, Siebenrock, Klaus-Arno, Anderson, Suzanne E.
ISSN:	1053-1807
ISBN:	17659572
Publisher:	Wiley Interscience
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 14:51
Last Modified:	02 Mar 2023 23:22
Publisher DOI:	10.1002/jmri.21014
PubMed ID:	17659572
Web of Science ID:	000248644500024
URI:	https://boris.unibe.ch/id/eprint/21541 (FactScience: 7359)