Elevated adiabatic T 1ρ and T 2ρ in articular cartilage are associated with cartilage and bone lesions in early osteoarthritis: A preliminary study
| Autor: | Victor Casula, Marianne Haapea, Jana Podlipská, Mikko J. Nissi, Ali Guermazi, Juhani M. Koski, Simo Saarakkala, Miika T. Nieminen, Eveliina Lammentausta |
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| Rok vydání: | 2017 |
| Předmět: |
030203 arthritis & rheumatology
Pathology medicine.medical_specialty WOMAC medicine.diagnostic_test business.industry Cartilage Magnetic resonance imaging Articular cartilage Osteoarthritis medicine.disease Asymptomatic 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure medicine Radiology Nuclear Medicine and imaging Bone marrow Stage (cooking) medicine.symptom business Nuclear medicine |
| Zdroj: | Journal of Magnetic Resonance Imaging. 46:678-689 |
| ISSN: | 1053-1807 |
| DOI: | 10.1002/jmri.25616 |
| Popis: | Purpose To evaluate adiabatic T1ρ and T2ρ of articular cartilage in symptomatic osteoarthritis (OA) patients and asymptomatic volunteers, and to determine their association with magnetic resonance imaging (MRI)-based structural abnormalities in cartilage and bone. Materials and methods A total of 24 subjects (age range: 50-68 years; 12 female) were enrolled, including 12 early OA patients and 12 volunteers with normal joint function. Patients and volunteers underwent 3T MRI. T2 , adiabatic T1ρ , and T2ρ relaxation times of knee articular cartilage were measured. Proton density (PD)- and T1 -weighted MR image series were also obtained and separately evaluated for morphological changes using the MRI OA Knee Scoring (MOAKS) system. Comparisons using the Mann-Whitney nonparametric test were performed after dividing the study participants according to physical symptoms as determined by Western Ontario and McMaster Universities (WOMAC) score or presence of cartilage lesions, bone marrow lesions, or osteophytes. Results Elevated adiabatic T1ρ and T2ρ relaxation times of articular cartilage were associated with cartilage loss (P = 0.024-0.047), physical symptoms (0.0068-0.035), and osteophytes (0.0039-0.027). Elevated adiabatic T1ρ was also associated with bone marrow lesions (0.033). Conclusion Preliminary data suggest that elevated adiabatic T1ρ and T2ρ of cartilage are associated with morphological abnormalities of cartilage and bone, and thus may be applicable for in vivo OA research and diagnostics. Level of evidence 2 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2017;46:678-689. |
| Databáze: | OpenAIRE |
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