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This study aims to suggest and test methods using an orally inserted guiding device in order to improve a motion artifact by involuntary oral motor such as removing one's dentures and swallowing saliva clinically structured cervical spine scan and to make the optimal image by minimizing motion artifact. A cervical spine test was conducted with 30 patients who wore dentures among those who had a cervical spinal disease from January 1, 2014 through June 30, 2014. As for testing methods, after removing denture, T1-TSE-Sagittal, T2-TSE-Sagittal, T1-TSE-Axial and T2-TSE-Axial were obtained in a normal position and a supine position; the orally inserted guiding device was inserted in patients' mouth; and then T1-TSE-Axial and T2-TSE-Axial were retested. As a result, in SNR, T1-TSE-Axial before inserting an orally inserted guiding device was 22.33±8.59; T1-TSE-Axial after inserting the orally inserted guiding device was 25.21±7.93; T2-TSE-Axial before inserting the orally inserted guiding device was 14.49±5.74; and T2-TSE-Axial after inserting the orally inserted guiding device was 16.61±6.72. In CNR, T1-TSE-Axial was measured at 0.23±0.01 while T2-TSE-Axial at 0.21±0.01. As a result of the qualitative analysis, T1-TSE-Axial before inserting the orally inserted guiding device was 3.49±0.11; T1-TSE-Axial after inserting the orally inserted guiding device was 3.95±0.14; T2-TSE-Axial before inserting the orally inserted guiding device was 3.25±0.18; and T2-TSE-Axial after inserting the orally inserted guiding device was 3.68±0.09. As a result of using an orally inserted guiding device, the resolution and contrast of the images improved as the patients' involuntary artifact decreased because of removing dentures and swallowing saliva, and it was found that the interpretation of the images and identification of the diseases improved.

Application of the Orally Inserted Guiding Device for the Improved Motion Artifacts of the Cervical Spine MRI