T2* Relaxation Time of Acetabular and Femoral Cartilage With and Without Intraarticular Gadopentetate Dimeglumine in Patients With Femoroacetabular Impingement
| Autor: | Shabnam Mortazavi, Mikko J. Nissi, Patrick M. Morgan, Jutta M. Ellermann, John Hughes |
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| Rok vydání: | 2015 |
| Předmět: |
musculoskeletal diseases
medicine.medical_specialty medicine.diagnostic_test business.industry Gadolinium chemistry.chemical_element Magnetic resonance imaging General Medicine Femoral cartilage Femoracetabular Impingement medicine.disease Acetabulum chemistry medicine Radiology Nuclear Medicine and imaging Femur In patient Radiology business Femoroacetabular impingement |
| Zdroj: | American Journal of Roentgenology. 204:W695-W700 |
| ISSN: | 1546-3141 0361-803X |
| DOI: | 10.2214/ajr.14.13428 |
| Popis: | OBJECTIVE. The purpose of this study was to assess whether the presence of intraarticular gadopentetate dimeglumine during clinical MR arthrography significantly alters the T2* relaxation time of hip articular cartilage in patients with femoroacetabular impingement. SUBJECTS AND METHODS. T2* mapping of 10 patient volunteers (seven female patients, three male patients; age range, 14–49 years; mean, 33.0 ± 12.2 [SD] years) with symptomatic femoroacetabular impingement was performed before and after intraarticular administration of gadopentetate dimeglumine. Overall 323 ROIs were defined in each acetabular and femoral cartilage before and after gadolinium injection. Agreement of the T2* relaxation times before and after gadolinium injection was assessed with the Krippendorff alpha coefficient and linear regression through the origin. RESULTS. T2* relaxation times before and after gadolinium injection in both acetabular and femoral cartilage were found to agree strongly. Specifically, estimated Krippendorff a... |
| Databáze: | OpenAIRE |
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