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COMPARISON OF IMAGE REFORMATION USING PERSONAL CONFUTER WITH CT SCAN RECONSTRUCTION

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Abstract

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1. ¾ç±º¿¡¼­ ÇϾǰñÀÇ Æø°æ°ú ³ôÀÌ´Â À¯ÀǼº ÀÖ´Â Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù.(P>0.05)
2. ÇϾǰüÀÇ ÁÖ°üÀû Æò°¡¿¡¼­ CT±ºÀÌ ´Ù¼Ò ¾çÈ£ÇÑ »óÀ» ¸¹ÀÌ º¸¿´À¸³ª, ¿ª½Ã À¯ÀǼº ÀÖ´Â
Â÷ÀÌ´Â º¸ÀÌÁö ¾Ê¾Ò´Ù. (P>0.05)
3. CT½ºÄµ Ç¥ÁØ À籸¼º¿¡¼­ ¾òÀ» ¼ö ¾ø¾ú´ø Æijë¶ó¸¶ »óÀ» µðÁöÅ» ¿µ»ó½Ã½ºÅÛÀ» ÀÌ¿ëÇÏ
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Radiographic planning is needed for implant placement in order to determine implant
length, jaw bone volume, anatomical stucture and so on. Radiographic examination
includes conventional radiography, conventional tomography and CT scan. The most
accurate mesurement can be obtained from CT scan. For the cross-sectional view of
mandible, CT scan reconstruction is generally needed. But the cross-sectional view of
mandible can be reformed by personal computer.
This study was performed to examine the clinical usefulness of reformed image using
personal computer in comparison with CT scan reconstructed image. CT axial slices of
4 mandibles of 4 volunteers were used. Digital imaging system was composed of
Macintosh ¥± ci computer, high resolution Sony XC-77 CCD camera, QuickCapture
frame grabber board and 'NIH Image' program. Seven reconstructed cross-sectional
images within CT machine(CT group) were obtained. And seven reformed
cross-sectional images(PC group) after digitization of CT axial slices into the personal
computer were obtained. PC group was compared with CT group in the objective and
subjective aspects.
The results were as follow:
1. Measurement of mandibular height & width in both group showed insignificant
difference(P>0.05).
2. Subjective assessment of the mandibular canal in both group showed insignificant
difference(P>0.05).
3. Image reformation using personal computer could provide panoramic view, which
could not be obtained in CT scan reconstruction.

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