Rudisch Ansgar, Emshoff Ruediger, Maurer Herbert, Kovacs Peter, Bodner Gerd
Department of Radiology, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria.
Eur Radiol. 2006 Aug;16(8):1750-6. doi: 10.1007/s00330-006-0162-0. Epub 2006 Mar 1.
The accuracy of high-resolution ultrasonography (HR-US) in detecting disk displacement and condylar erosion of the temporomandibular joint (TMJ) was evaluated, using corresponding cryosections as a "gold standard". HR-US of the TMJ was performed with a high frequency 12 MHz transducer on 30 preserved autopsy specimens. Succeeding sonography, the autopsy specimens were deep-frozen and cut in paracoronal planes corresponding to the sonographic images. HR-US diagnoses were compared with cryosectional findings in a blinded fashion. HR-US detected 19 (95%) of 20 instances of condylar erosion and 16 (73%) of 22 instances of disk displacement. There were one false-positive finding for condylar erosion and two false-positive findings for disk displacement. The accuracy of HR-US evaluating condylar erosion and disk displacement rated 93% and 73%, respectively. In conclusion, condylar erosion was reliably assessed by HR-US, but the evaluation of disk position was less accurate.
以相应的冷冻切片作为“金标准”，评估高分辨率超声检查（HR-US）检测颞下颌关节（TMJ）盘移位和髁突侵蚀的准确性。使用高频12MHz探头对30个保存的尸检标本进行TMJ的HR-US检查。超声检查后，将尸检标本深度冷冻并沿与超声图像对应的旁冠状平面切开。以盲法将HR-US诊断结果与冷冻切片结果进行比较。HR-US检测出20例髁突侵蚀中的19例（95%）和22例盘移位中的16例（73%）。髁突侵蚀有1例假阳性结果，盘移位有2例假阳性结果。HR-US评估髁突侵蚀和盘移位的准确性分别为93%和73%。总之，HR-US能够可靠地评估髁突侵蚀，但对盘位置的评估准确性较低。
