scholarly journals Detecting structural changes in early experimental osteoarthritis of tibial cartilage by microscopic magnetic resonance imaging and polarised light microscopy

2004 ◽  
Vol 63 (6) ◽  
pp. 709-717 ◽  
Author(s):  
H A Alhadlaq
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Light Microscopy ◽  
Structural Changes ◽  
Resonance Imaging ◽  
Tibial Cartilage ◽  
Polarised Light ◽  
Experimental Osteoarthritis

scholarly journals Clinical features and brain structural changes in magnetic resonance imaging in Alzheimer’s disease patients with apathy

Aging ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 19083-19094
Author(s):  
Shu-Yang Yu ◽  
Wan-Lin Zhu ◽  
Peng Guo ◽  
Shao-Wu Li ◽  
Ya-Ou Liu ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Features ◽  
Structural Changes ◽  
Resonance Imaging

Magnetic resonance imaging can accurately assess the long-term progression of knee structural changes in experimental dog osteoarthritis

2007 ◽  
Vol 67 (7) ◽  
pp. 926-932 ◽  
Author(s):  
C Boileau ◽  
J Martel-Pelletier ◽  
F Abram ◽  
J-P Raynauld ◽  
E Troncy ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Structural Changes ◽  
Resonance Imaging

Magnetic Resonance Imaging T2 Values of Stifle Articular Cartilage in Normal Beagles

2018 ◽  
Vol 31 (02) ◽  
pp. 108-113 ◽  
Author(s):  
Kei Hayashi ◽  
Brian Caserto ◽  
Mary Norman ◽  
Hollis Potter ◽  
Matthew Koff ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Articular Cartilage ◽  
Magnetic Resonance ◽  
Regional Differences ◽  
T2 Mapping ◽  
Resonance Imaging ◽  
Condylar Cartilage ◽  
Tibial Cartilage ◽  
Stifle Joint ◽  
Canine Stifle

Objectives The purpose of this study was to evaluate regional differences of canine stifle articular cartilage using the quantitative magnetic resonance imaging (MRI) technique of T2 mapping. Methods Fourteen stifle joints from seven juvenile male Beagle dogs with no evidence or prior history of pelvic limb lameness were imaged ex vivo using standard of care fast spin echo MRI and quantitative T2 mapping protocols. Regions of interest were compared between the femoral, patellar and tibial cartilages, as well as between the lateral and medial femorotibial compartments. Limbs were processed for histology with standard stains to confirm normal cartilage. Results The average T2 value of femoral trochlear cartilage (37.5 ± 2.3 ms) was significantly prolonged (p < 0.0001) as compared with the femoral condylar, patellar and tibial condylar cartilages (33.1 ± 1.5 ms, 32.8 ± 2.3 ms, and 28.0 ± 1.7 ms, respectively). When comparing medial and lateral condylar compartments, the lateral femoral condylar cartilage had the longest T2 values (34.8 ± 2.8 ms), as compared with the medial femoral condylar cartilage (30.9 ± 1.9 ms) and lateral tibial cartilage (29.1 ± 2.3 ms), while the medial tibial cartilage had the shortest T2 values (26.7 ± 2.4 ms). Clinical Significance As seen in other species, regional differences in T2 values of the canine stifle joint are identified. Understanding normal regions of anticipated prolongation in different joint compartments is needed when using quantitative imaging in models of canine osteoarthritis.

Detection of Erosions in Sacroiliac Joints of Patients with Axial Spondyloarthritis Using the Magnetic Resonance Imaging Volumetric Interpolated Breath-hold Examination

2019 ◽  
Vol 46 (11) ◽  
pp. 1445-1449 ◽  
Author(s):  
Xenofon Baraliakos ◽  
Florian Hoffmann ◽  
Xiaohu Deng ◽  
Yan-Yan Wang ◽  
Feng Huang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Structural Changes ◽  
Axial Spondyloarthritis ◽  
Linear Regression Analysis ◽  
Cartilage Defects ◽  
Breath Hold ◽  
Resonance Imaging ◽  
Sacroiliac Joints ◽  
Magnetic Resonance Imaging Mri

Objective.The volumetric interpolated breath-hold examination (VIBE) magnetic resonance imaging (MRI) technique can visualize erosive cartilage defects in peripheral joints. We evaluated the ability of VIBE to detect erosions in sacroiliac joints (SIJ) of patients with axial spondyloarthritis (axSpA) compared to the established T1-weighted MRI sequence and computed tomography (CT).Methods.MRI (T1-weighted and VIBE) and CT scans of SIJ of 109 patients with axSpA were evaluated by 2 blinded readers based on SIJ quadrants (SQ). Erosions were defined according to Assessment of Spondyloarthritis international Society (ASAS) definitions. Scores were recorded if readers were in agreement.Results.Erosions were less frequently detected by CT (153 SQ) than by T1-weighted MRI (182 SQ; p = 0.008) and VIBE-MRI (199 SQ; p < 0.001 vs CT and p = 0.031 vs T1-weighted MRI). Taking CT as the gold standard, the sensitivity of VIBE-MRI (71.2%) was higher than that for T1-weighted MRI (63.4%), with similar specificity (87.3% vs 88%, respectively). In linear regression analysis, younger age was significantly associated with occurrence of erosions independently in VIBE-MRI (β = 0.384, p < 0.001) and T1-weighted MRI (β = 0.369, p < 0.001) compared to CT.Conclusion.The VIBE-MRI sequence was more sensitive than T1-weighted MRI in identifying erosive damage in the SIJ, especially in younger patients. This might be due to the ability of VIBE-MRI to identify structural changes in the cartilage that have not yet extended to the underlying bone, where CT seems to be superior.

Brain structural changes in CADASIL patients: A morphometric magnetic resonance imaging study

2020 ◽  
Vol 738 ◽  
pp. 135388
Author(s):  
Hui Pan ◽  
Qi Huang ◽  
Shiyu Ban ◽  
Xiaoxia Du ◽  
Jingjing Su ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Structural Changes ◽  
Imaging Study ◽  
Magnetic Resonance Imaging Study ◽  
Resonance Imaging
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