Title :

T2 mapping of the sacroiliac joints with 3-t mri: a preliminary study

Author(s) :

Lefebvre, Guillaume [Auteur]
Bergere, Antonin [Auteur]
Rafei, Mazen El [Auteur]
Duhamel, Alain [Auteur]
Evaluation des technologies de santé et des pratiques médicales - ULR 2694 [METRICS]
Teixeira, Pedro [Auteur]
Cotten, Anne [Auteur]
Marrow Adiposity & Bone Lab [MABLab] - ULR 4490
Marrow Adiposity & Bone Lab - Adiposité Médullaire et Os - ULR 4490 [MABLab]
Marrow Adiposity & Bone Lab (MABLab) - ULR 4490

Journal title :

AJR. American journal of roentgenology

Abbreviated title :

Am. J. Roentgenol.

Volume number :

209

Pages :

389-394

Publication date :

2017-08-01

ISSN :

0361-803X

English keyword(s) :

articular cartilage
T2 mapping
reproducibility of results
quantitative imaging
MRI
cartilage
T2 relaxation
sacroiliac joint

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

OBJECTIVE: The objective of this study was to assess the feasibility of T2 relaxation time measurements of the sacroiliac joints. METHODS: The sacroiliac joints of 40 patients were imaged by 3-T MRI using an oblique axial ...
Show more >OBJECTIVE: The objective of this study was to assess the feasibility of T2 relaxation time measurements of the sacroiliac joints. METHODS: The sacroiliac joints of 40 patients were imaged by 3-T MRI using an oblique axial multislice multiecho spin-echo T2-weighted sequence. Manual plotting and automatic subdivision of ROIs allowed us to obtain T2 values for up to 48 different areas per patient (posterior and anterior parts, sacral, intermediate, and iliac parts). Intraand interobserver reproducibility of T2 values were calculated after independent assessment by two musculoskeletal radiologists. RESULTS: A total of 1656 measurement sites could be analyzed. Mean (± SD) T2 values were 40.6 ± 6.7 ms and 41.2 ± 6.3 ms for observer 1 and 39.9 ± 6.6 ms for observer 2. The intraobserver intraclass correlation coefficient was 0.72 (95% CI, 0.70-0.74), and the interobserver intraclass correlation coefficient was 0.71 (95% CI, 0.68-0.72). CONCLUSIONS: Our study shows the feasibility of T2 relaxation time measurements at the sacroiliac joints.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CHU Lille
Univ. Littoral Côte d’Opale
Université de Lille

Collections :

• Marrow Adiposity & Bone Lab (MABLab) - ULR 4490
• METRICS : Evaluation des technologies de santé et des pratiques médicales - ULR 2694

Submission date :

2019-12-09T18:16:54Z