Analysis of elements in a minimal amount of temporomandibular joint fluid on fluid-attenuated inversion recovery magnetic resonance images

被引：4

作者：

Hanyuda, Hitoshi ^{[1
]}

Otonari-Yamamoto, Mika ^{[1
]}

Imoto, Kenichi ^{[1
]}

Sakamoto, Junichiro ^{[1
]}

Kodama, Sayaka ^{[1
]}

Kamio, Takashi ^{[1
]}

Sano, Tsukasa ^{[1
]}

机构：

[1] Tokyo Dent Coll, Dept Oral & Maxillofacial Radiol, Mihama Ku, Chiba 2608502, Japan

来源：

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY | 2013年 / 115卷 / 01期

关键词：

INTERNAL DERANGEMENT; SYNOVIAL-FLUID; REFLECT SYNOVITIS; DISK DISPLACEMENT; TOTAL PROTEIN; MR EVIDENCE; EFFUSION; PAIN; OSTEOARTHRITIS; EXPRESSION;

D O I：

10.1016/j.oooo.2012.09.083

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Objective. The aim of this study was to elucidate possible elements in minimal amounts of fluid (MF) in the temporomandibular joint by analyzing signal intensities in T2-weighted and fluid-attenuated inversion recovery (FLAIR) magnetic resonance (MR) images. Study Design. Fifteen joints (15 patients) with MF were subjected to MR imaging to obtain T2-weighted and FLAIR images. Regions of interest were placed on MF, cerebrospinal fluid (CSF), and gray matter (GM), and their signal intensities were measured on both images. The signal intensity ratio (SIR) obtained by the signal intensity of GM between MF and CSF was compared in T2-weighted and FLAIR images. Results. The average SIR of MF was lower than that of CSF on T2-weighted images, whereas it was higher on FLAIR images. The average suppression ratio of the signal intensity was lower for MF (24.1%) than for CSF (71.4%). Conclusions. MF may contain elements such as protein that are capable of inducing a shortened T1 relaxation time on MR images. (Oral Surg Oral Med Oral Pathol Oral Radiol 2013;115:114-120)

引用

页码：114 / 120

页数：7

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