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Table 5 Examples of various MRI techniques used in OA animal models

From: Animal models of osteoarthritis: classification, update, and measurement of outcomes

MRI technique

Animal model

OA subset studied

T1-rho

Rabbit-ACLT

Cartilage degeneration [326]

 

Rat-meniscectomy

Decrease in cartilage thickness and loss of cartilage [327]

 

Rat-ACLT

Loss of proteoglycans, collagens and hydration changes [328]

 

Canine-stifle model

Osteophytosis and synovial thickening [329]

 

Guinea pig model

Cartilage thickness to study age related OA [330]

 

Rabbit model

Proteoglycan loss, disruption of collagen network [239]

T2-mapping

Rabbit-antigen induced OA

Synovitis, macrophages [331]

 

Goat knee-papain induced OA

Cartilage damage [332]

 

Guinea pigs-aging

Cysts, osteophytes, sclerosis, cartilage degeneration [333]

 

Rabbit-papain induced

Cartilage thickness, loss of proteoglycan [334]

 

Rabbit-medial meniscectomy

Collagen order [335]

dGEMRIC

Goat-osteochondral defect

Glycosaminoglycan content [336]

2D spin echo and 3D gradient echo

Canine model

OA bone abnormalities, intraosseous cysts [337]

 

Rabbit-ACLT

Articular cartilage degradation, osteophyte formation, subchondral bone changes [338]

 

Rabbit-ACLT and meniscectomy

Synovial effusion, meniscus and ACL lesions, and osteophytes [339]

 

Rat-ACLT

Cartilage volume/thickness [242]

 

Rat-meniscectomy

Cartilage degeneration, subchondral bone defects, and osteophytes [235]

 

Goat-osteochondral defect

Osteochondral repair and bone lesions [340]

 

Mouse (C57BL/6)

Articular synovial space, subchondral bone [317]

Sodium MRI

Porcine (intra-articular injection (IL-1beta)

Proteoglycan content [341]

Magnetization transfer

Rat model (antigen induced)

Macrophage infiltration, changes in water content [342]

 

Goat knee-papain

Collagen concentration, proteoglycan depletion [332]

 

Rabbit-medial meniscectomy

Collagen framework, proteoglycan loss [239]

  1. T1-rho T1 in the rotating frame, ACLT anterior cruciate ligament transection, dGEMRIC delayed gadolinium-enhanced magnetic resonance, OA osteoarthritis, IL interleukin