Tags

Type your tag names separated by a space and hit enter

Magnetic resonance imaging of the temporomandibular joint in the rat compared with low-powered light microscopy.
Arch Oral Biol. 2011 Nov; 56(11):1382-9.AO

Abstract

OBJECTIVE

High magnetic field magnetic resonance imaging (MRI) was applied to the temporomandibular joint (TMJ) in the rat. The purpose of this study was the depiction of the internal structure of the TMJ, including the articular disc, articular cartilage, and the upper and lower joint cavities. We also proposed MRI settings and slices suitable for imaging the TMJ in the rat.

METHODS

Temporomandibular joints from one female and eight male Sprague Dawley rats (5-8 weeks old) and four male Wistar-Hamamatsu rats (7-8 weeks old) were used. Using scout images, the horizontal plane was defined as being parallel to the body of the basisphenoid bone underneath the base of the brain. The coronal plane was defined as a slice vertical to the horizontal plane and vertical to the longitudinal fissure of the cerebrum. The sagittal plane was defined as a slice vertical to the horizontal plane and parallel to the longitudinal fissure of the cerebrum.

RESULTS

T(1)-weighted MR images with a spatial resolution of 75 μm were obtained for 5 min. The temporal bone and mandibular condyle were depicted as lower signal intensity images and the articular disc was depicted as an intermediate signal intensity image. In accordance with Gd-DTPA-enhanced MR or T(2)-weighted MR images, the articular disc, articular cartilage, and the upper and lower joint cavities could be assigned clearly.

CONCLUSION

These MRI findings closely agreed with those observed with haematoxylin-eosin staining under light microscopy, suggesting that MRI is a useful method for analyzing the complex structure of the TMJ in the rat.

Authors+Show Affiliations

Department of Maxillofacial Surgery, Nihon University School of Dentistry at Matsudo, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21549351

Citation

Satoh, Kaori, et al. "Magnetic Resonance Imaging of the Temporomandibular Joint in the Rat Compared With Low-powered Light Microscopy." Archives of Oral Biology, vol. 56, no. 11, 2011, pp. 1382-9.
Satoh K, Satoh K, Imaizumi Y, et al. Magnetic resonance imaging of the temporomandibular joint in the rat compared with low-powered light microscopy. Arch Oral Biol. 2011;56(11):1382-9.
Satoh, K., Satoh, K., Imaizumi, Y., Yokoi, M., Kondoh, T., Murakami, M., & Seo, Y. (2011). Magnetic resonance imaging of the temporomandibular joint in the rat compared with low-powered light microscopy. Archives of Oral Biology, 56(11), 1382-9. https://doi.org/10.1016/j.archoralbio.2011.03.024
Satoh K, et al. Magnetic Resonance Imaging of the Temporomandibular Joint in the Rat Compared With Low-powered Light Microscopy. Arch Oral Biol. 2011;56(11):1382-9. PubMed PMID: 21549351.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Magnetic resonance imaging of the temporomandibular joint in the rat compared with low-powered light microscopy. AU - Satoh,Kaori, AU - Satoh,Keitaro, AU - Imaizumi,Yoshie, AU - Yokoi,Mika, AU - Kondoh,Toshirou, AU - Murakami,Masataka, AU - Seo,Yoshiteru, Y1 - 2011/05/06/ PY - 2010/12/21/received PY - 2011/03/07/revised PY - 2011/03/31/accepted PY - 2011/5/10/entrez PY - 2011/5/10/pubmed PY - 2012/3/1/medline SP - 1382 EP - 9 JF - Archives of oral biology JO - Arch. Oral Biol. VL - 56 IS - 11 N2 - OBJECTIVE: High magnetic field magnetic resonance imaging (MRI) was applied to the temporomandibular joint (TMJ) in the rat. The purpose of this study was the depiction of the internal structure of the TMJ, including the articular disc, articular cartilage, and the upper and lower joint cavities. We also proposed MRI settings and slices suitable for imaging the TMJ in the rat. METHODS: Temporomandibular joints from one female and eight male Sprague Dawley rats (5-8 weeks old) and four male Wistar-Hamamatsu rats (7-8 weeks old) were used. Using scout images, the horizontal plane was defined as being parallel to the body of the basisphenoid bone underneath the base of the brain. The coronal plane was defined as a slice vertical to the horizontal plane and vertical to the longitudinal fissure of the cerebrum. The sagittal plane was defined as a slice vertical to the horizontal plane and parallel to the longitudinal fissure of the cerebrum. RESULTS: T(1)-weighted MR images with a spatial resolution of 75 μm were obtained for 5 min. The temporal bone and mandibular condyle were depicted as lower signal intensity images and the articular disc was depicted as an intermediate signal intensity image. In accordance with Gd-DTPA-enhanced MR or T(2)-weighted MR images, the articular disc, articular cartilage, and the upper and lower joint cavities could be assigned clearly. CONCLUSION: These MRI findings closely agreed with those observed with haematoxylin-eosin staining under light microscopy, suggesting that MRI is a useful method for analyzing the complex structure of the TMJ in the rat. SN - 1879-1506 UR - https://www.unboundmedicine.com/medline/citation/21549351/Magnetic_resonance_imaging_of_the_temporomandibular_joint_in_the_rat_compared_with_low_powered_light_microscopy_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-9969(11)00121-X DB - PRIME DP - Unbound Medicine ER -