Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Widhalm, HK; Apprich, S; Welsch, GH; Zbyn, S; Sadoghi, P; Vekszler, G; Hamböck, M; Weber, M; Hajdu, S; Trattnig, S.
Optimized cartilage visualization using 7-T sodium ((23)Na) imaging after patella dislocation.
Knee Surg Sports Traumatol Arthrosc. 2016; 24(5):1601-1609
Doi: 10.1007/s00167-014-3455-x
[OPEN ACCESS]
Web of Science
PubMed
FullText
FullText_MUG
- Co-authors Med Uni Graz
- Sadoghi Patrick
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Retropatellar cartilage lesions often occur in the course of recurrent patella dislocation. Aim of this study was to develop a more detailed method for examining cartilage tissue, in order to reduce patient discomfort and time of care. For detailed diagnosing, a 7-T MRI of the knee joint and patella was performed in nine patients, with mean age of 26.4 years, after patella dislocation to measure the cartilage content in three different regions of interest of the patella. Axial sodium ((23)Na) images were derived from an optimized 3D GRE sequence on a 7-T MR scanner. Morphological cartilage grading was performed, and sodium signal-to-noise ratio (SNR) values were calculated. Mean global sodium values and SNR were compared between patients and volunteers. Two out of nine patients showed a maximum cartilage defect of International Cartilage Repair Society (ICRS) grade 3, three of grade 2, three of grade 1, and one patient showed no cartilage defect. The mean SNR in sodium images for cartilage was 13.4 ± 2.5 in patients and 14.6 ± 3.7 in volunteers (n.s.). A significant negative correlation between age and global sodium SNR for cartilage was found in the medial facet (R = -0.512; R (2) = 0.26; p = 0.030). Mixed-model ANOVA yielded a marked decrease of the sodium SNR, with increasing grade of cartilage lesions (p < 0.001). Utilization of the (23)Na MR imaging will make earlier detection of alterations to the patella cartilage after dislocation possible and will help prevent subsequent disease due to start adequate therapy earlier in the rehabilitation process. II.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Cartilage Diseases - diagnostic imaging
- Cartilage Diseases - etiology
- Cartilage Diseases - pathology
- Cartilage Diseases - surgery
- Cartilage, Articular - diagnostic imaging
- Cartilage, Articular - pathology
- Cartilage, Articular - surgery
- Female -
- Humans -
- Knee Joint - diagnostic imaging
- Knee Joint - pathology
- Knee Joint - surgery
- Magnetic Resonance Imaging - methods
- Male -
- Patella - diagnostic imaging
- Patella - pathology
- Patellar Dislocation - complications
- Patellar Dislocation - diagnostic imaging
- Patellar Dislocation - pathology
- Patellar Dislocation - surgery
- Radiopharmaceuticals -
- Sodium Compounds -
- Young Adult -
- Find related publications in this database (Keywords)
- 7 T
- Magnetic resonance imaging
- Sodium
- Cartilage
- Glycosaminoglycans
- Patella dislocation