Sabine Ochman1,2, B Wieskötter3, M Langer3, V Vieth4, M J Raschke3, C Stehling4. 1. Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital, Münster, Germany. ochman@uni-muenster.de. 2. Department of Trauma-, Hand- and Reconstructive Surgery, Westfälische Wilhelms University of Muenster, Albert Schweitzer Campus 1, Gebäude W1, 48149, Münster, Germany. ochman@uni-muenster.de. 3. Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital, Münster, Germany. 4. Department of Clinical Radiology, University Hospital, Münster, Germany.
Abstract
INTRODUCTION: 3T MRI has become increasingly available for better imaging of interosseous ligaments, TFCC, and avascular necrosis compared with 1.5T MRI. This study assesses the sensitivity and specificity of 3T MRI compared with arthroscopy as the gold standard. PATIENTS AND METHODS: Eighteen patients were examined with 3T MRI using coronal T1-TSE; PD-FS; and coronal, sagittal, and axial contrast-enhanced T1-FFE-FS sequences. Two musculoskeletal radiologists evaluated the images independently. Patients underwent diagnostic arthroscopy. RESULTS: The classifications of the cartilage lesions showed good correlations with the arthroscopy findings (κ = 0.8-0.9). In contrast to the arthroscopy, cartilage of the distal carpal row was very good and could be evaluated in all patients on MRI. The sensitivity for the TFCC lesion was 83%, and the specificity was 42% (radiologist 1) and 63% (radiologist 2). For the ligament lesions, the sensitivity and specificity were 75 and 100%, respectively, with a high interobserver agreement (κ = 0.8-0.9). DISCUSSION: 3T MRI proved to be of good value in diagnosing cartilage lesions, especially in the distal carpal row, whereas wrist arthroscopy provided therapeutic options. When evaluating the surgical therapeutical options, 3T MRI is a good diagnostic tool for pre-operatively evaluating the cartilage of the distal carpal row.
INTRODUCTION: 3T MRI has become increasingly available for better imaging of interosseous ligaments, TFCC, and avascular necrosis compared with 1.5T MRI. This study assesses the sensitivity and specificity of 3T MRI compared with arthroscopy as the gold standard. PATIENTS AND METHODS: Eighteen patients were examined with 3T MRI using coronal T1-TSE; PD-FS; and coronal, sagittal, and axial contrast-enhanced T1-FFE-FS sequences. Two musculoskeletal radiologists evaluated the images independently. Patients underwent diagnostic arthroscopy. RESULTS: The classifications of the cartilage lesions showed good correlations with the arthroscopy findings (κ = 0.8-0.9). In contrast to the arthroscopy, cartilage of the distal carpal row was very good and could be evaluated in all patients on MRI. The sensitivity for the TFCC lesion was 83%, and the specificity was 42% (radiologist 1) and 63% (radiologist 2). For the ligament lesions, the sensitivity and specificity were 75 and 100%, respectively, with a high interobserver agreement (κ = 0.8-0.9). DISCUSSION: 3T MRI proved to be of good value in diagnosing cartilage lesions, especially in the distal carpal row, whereas wrist arthroscopy provided therapeutic options. When evaluating the surgical therapeutical options, 3T MRI is a good diagnostic tool for pre-operatively evaluating the cartilage of the distal carpal row.
Entities:
Keywords:
3T MRI; Arthroscopy; High resolution; MRI; Wrist
Authors: Ji Hun Park; Kyung-Sik Ahn; Anseong Chang; Young Woo Kwon; In Cheul Choi; Jong Woong Park Journal: Skeletal Radiol Date: 2019-07-18 Impact factor: 2.199
Authors: Valentina Mori; Lino M Sawicki; Philipp Sewerin; Markus Eichner; Benedikt M Schaarschmidt; Lisa Oezel; Sebastian Gehrmann; Bernd Bittersohl; Gerald Antoch; Christoph Schleich Journal: Eur Radiol Date: 2018-12-12 Impact factor: 5.315