Masaru Tasaki

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To determine the diagnostic accuracy, sensitivity, and specificity of magnetic resonance (MR) imaging of the temporomandibular joint (TMJ) in the assessment of disk position, disk form, and changes in the osseous components, 55 fresh cadaver joints were imaged. A 1.5-T imager was used in the sagittal and coronal planes. After MR imaging, the joints were(More)
The purpose of this study was to determine the value of axial images for diagnosis of disk displacement and osseous changes of the temporomandibular joint. Sagittal, coronal, and axial magnetic resonance images were obtained of 35 fresh temporomandibular joint autopsy specimens. The sagittal and coronal images were interpreted for position of the disk and(More)
Drowsiness during driving causes traffic accidents frequently. It is therefore desirable to detect the drowsiness. Drowsiness occurs when the parasympathetic nerve activity becomes dominant. Related researches show that high frequency (HF) component of heart rate variability (HRV) on an electrocardiogram (ECG) has certain correlation with drowsiness by(More)
This study was undertaken to determine if it is possible to identify medial disc displacement with dual space anteroposterior (AP) arthrotomography. Contrast medium was injected into the upper and lower joint spaces of 11 fresh temporomandibular joint (TMJ) autopsy specimens and arthrotomograms were obtained with an AP projection. The arthrotomograms of(More)
The purpose of this investigation was to determine whether it is possible to diagnose medial and lateral disk displacements by single-contrast lower-compartment arthrography with an anteroposterior projection. Contrast medium was injected into the lower joint space of 29 fresh temporomandibular joint autopsy specimens. Anteroposterior arthrograms and(More)
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