Department of Experimental Physics 5, University of Wuerzburg, Wuerzburg, Germany;
Dentomaxillofac Radiol. 2013;42(9):20120436. doi: 10.1259/dmfr.20120436. Epub 2013 Aug 23.
The objective of this study was to examine the kinematics of structures of the temporomandibular joint (TMJ) under physiological load while masticating.
Radial MRI was chosen as a fast imaging method to dynamically capture the motions of the joint's anatomy. The technique included a golden ratio-based increment angle and a sliding window reconstruction. The measurements were performed on 22 subjects with and without deformation/displacement of the intra-articular disc while they were biting on a cooled caramel toffee.
The reconstructed dynamic images provided sufficient information about the size and localization of the disc as well as the change of the intra-articular distance with and without loading.
The feasibility of the golden ratio-based radial MRI technique to dynamically capture the anatomy of the TMJ under physical load was demonstrated in this initial study.
本研究旨在研究咀嚼时颞下颌关节（TMJ）结构在生理负荷下的运动学。
选择基于黄金分割比的增量角度和滑动窗口重建的径向 MRI 作为快速成像方法，以动态捕捉关节解剖结构的运动。该技术包括 22 名受试者，他们在咀嚼冷却焦糖太妃糖时，关节内盘有或没有变形/位移。
重建的动态图像提供了关于盘的大小和位置以及加载前后关节内距离变化的足够信息。
本初步研究证明了基于黄金分割比的径向 MRI 技术在物理负荷下动态捕捉 TMJ 解剖结构的可行性。
