Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model.
To evaluate multiple MRI parameters in a surgical model of osteochondrosis (OC) in goats.Focal ischemic lesions of two different sizes were induced in the epiphyseal cartilage of the medial femoral condyles of goats at 4 days of age by surgical transection of cartilage canal blood vessels. Goats wer...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2015-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4608749?pdf=render |
| _version_ | 1818057047752572928 |
|---|---|
| author | Luning Wang Mikko J Nissi Ferenc Tóth Jonah Shaver Casey P Johnson Jinjin Zhang Michael Garwood Cathy S Carlson Jutta M Ellermann |
| author_facet | Luning Wang Mikko J Nissi Ferenc Tóth Jonah Shaver Casey P Johnson Jinjin Zhang Michael Garwood Cathy S Carlson Jutta M Ellermann |
| author_sort | Luning Wang |
| collection | DOAJ |
| description | To evaluate multiple MRI parameters in a surgical model of osteochondrosis (OC) in goats.Focal ischemic lesions of two different sizes were induced in the epiphyseal cartilage of the medial femoral condyles of goats at 4 days of age by surgical transection of cartilage canal blood vessels. Goats were euthanized and specimens harvested 3, 4, 5, 6, 9 and 10 weeks post-op. Ex vivo MRI scans were conducted at 9.4 Tesla for mapping the T1, T2, T1ρ, adiabatic T1ρ and TRAFF relaxation times of articular cartilage, unaffected epiphyseal cartilage, and epiphyseal cartilage within the area of the induced lesion. After MRI scans, safranin O staining was conducted to validate areas of ischemic necrosis induced in the medial femoral condyles of six goats, and to allow comparison of MRI findings with the semi-quantitative proteoglycan assessment in corresponding safranin O-stained histological sections.All relaxation time constants differentiated normal epiphyseal cartilage from lesions of ischemic cartilage necrosis, and the histological staining results confirmed the proteoglycan (PG) loss in the areas of ischemia. In the scanned specimens, all of the measured relaxation time constants were higher in the articular than in the normal epiphyseal cartilage, consistently allowing differentiation between these two tissues.Multiparametric MRI provided a sensitive approach to discriminate between necrotic and viable epiphyseal cartilage and between articular and epiphyseal cartilage, which may be useful for diagnosing and monitoring OC lesions and, potentially, for assessing effectiveness of treatment interventions. |
| first_indexed | 2024-12-10T12:38:32Z |
| format | Article |
| id | doaj.art-1c2ae22227be4c6fa5a2018928108eec |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-10T12:38:32Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-1c2ae22227be4c6fa5a2018928108eec2022-12-22T01:48:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011010e014040010.1371/journal.pone.0140400Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model.Luning WangMikko J NissiFerenc TóthJonah ShaverCasey P JohnsonJinjin ZhangMichael GarwoodCathy S CarlsonJutta M EllermannTo evaluate multiple MRI parameters in a surgical model of osteochondrosis (OC) in goats.Focal ischemic lesions of two different sizes were induced in the epiphyseal cartilage of the medial femoral condyles of goats at 4 days of age by surgical transection of cartilage canal blood vessels. Goats were euthanized and specimens harvested 3, 4, 5, 6, 9 and 10 weeks post-op. Ex vivo MRI scans were conducted at 9.4 Tesla for mapping the T1, T2, T1ρ, adiabatic T1ρ and TRAFF relaxation times of articular cartilage, unaffected epiphyseal cartilage, and epiphyseal cartilage within the area of the induced lesion. After MRI scans, safranin O staining was conducted to validate areas of ischemic necrosis induced in the medial femoral condyles of six goats, and to allow comparison of MRI findings with the semi-quantitative proteoglycan assessment in corresponding safranin O-stained histological sections.All relaxation time constants differentiated normal epiphyseal cartilage from lesions of ischemic cartilage necrosis, and the histological staining results confirmed the proteoglycan (PG) loss in the areas of ischemia. In the scanned specimens, all of the measured relaxation time constants were higher in the articular than in the normal epiphyseal cartilage, consistently allowing differentiation between these two tissues.Multiparametric MRI provided a sensitive approach to discriminate between necrotic and viable epiphyseal cartilage and between articular and epiphyseal cartilage, which may be useful for diagnosing and monitoring OC lesions and, potentially, for assessing effectiveness of treatment interventions.http://europepmc.org/articles/PMC4608749?pdf=render |
| spellingShingle | Luning Wang Mikko J Nissi Ferenc Tóth Jonah Shaver Casey P Johnson Jinjin Zhang Michael Garwood Cathy S Carlson Jutta M Ellermann Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model. PLoS ONE |
| title | Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model. |
| title_full | Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model. |
| title_fullStr | Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model. |
| title_full_unstemmed | Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model. |
| title_short | Multiparametric MRI of Epiphyseal Cartilage Necrosis (Osteochondrosis) with Histological Validation in a Goat Model. |
| title_sort | multiparametric mri of epiphyseal cartilage necrosis osteochondrosis with histological validation in a goat model |
| url | http://europepmc.org/articles/PMC4608749?pdf=render |
| work_keys_str_mv | AT luningwang multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT mikkojnissi multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT ferenctoth multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT jonahshaver multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT caseypjohnson multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT jinjinzhang multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT michaelgarwood multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT cathyscarlson multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel AT juttamellermann multiparametricmriofepiphysealcartilagenecrosisosteochondrosiswithhistologicalvalidationinagoatmodel |