Quantitative mapping of glenohumeral cartilage in asymptomatic subjects using 3 T magnetic resonance imaging
| Autor: | Katharine J. Wilson, Charles P. Ho, J. Christoph Katthagen, Peter J. Millett, Carly A. Lockard, Richard C. Shin |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Cartilage Articular Male medicine.medical_specialty Shoulders Asymptomatic 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies 030222 orthopedics medicine.diagnostic_test business.industry Plane (geometry) Shoulder Joint Cartilage Magnetic resonance imaging Anatomy Magnetic Resonance Imaging Sagittal plane Healthy Volunteers medicine.anatomical_structure Coronal plane Orthopedic surgery Female medicine.symptom business |
| Zdroj: | Skeletal radiology. 47(5) |
| ISSN: | 1432-2161 |
| Popis: | The purpose of this study was to develop quantitative T2 mapping methodology in asymptomatic shoulders for the entire mappable region of the glenohumeral cartilage in the coronal and sagittal planes, to assess the feasibility and limitations of the development of a diagnostic tool for future application in symptomatic patients. Twenty-one asymptomatic volunteers underwent sagittal and coronal glenohumeral T2 mapping, as the spherical geometry of the humeral head obviates the need to evaluate the entire glenohumeral cartilage in a single plane. The humeral head cartilage orthogonal to the mapping plane was manually segmented in the sagittal and coronal planes, whereas the glenoid cartilage was segmented in the coronal plane. Cartilage T2 summary statistics were calculated and coverage in each mapping plane was qualitatively assessed. The mean ± standard deviation of the glenoid cartilage T2 was 38 ± 2 ms. The coronal and sagittal mapping planes captured different regions of the humeral head with some overlap: inferior–medial to superior–lateral versus superior/superior–lateral to anterior–lateral and posterior–lateral respectively. The mean humeral head cartilage T2 in the coronal plane was 41 ± 3 ms, which was significantly different (p |
| Databáze: | OpenAIRE |
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