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ERRORS IN DIGITIZED LATERAL CEPHALOMETRIC RADIOGRAPHY

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Abstract

º» ¿¬±¸´Â µÎºÎ¹æ»ç¼±±Ô°Ý»çÁøÀÇ °è¼ö ¿µ»óÈ­ ½ÃÀÇ °èÃø ¿ÀÂ÷¸¦ Æò°¡Çϱâ À§ÇÏ¿© ½ÃÇàµÇ
¾úÀ¸¸ç, Ãø¸ð µÎºÎ¹æ»ç¼±±Ô°Ý»çÁøÀÇ ¹Ýº¹ÃøÁ¤ ¹× µ¿ÀÏÁ¶°ÇÀ¸·á ¹Ýº¹ÃÔ¿µÇÑ °æ¿ìÀÇ ÀÏ¹Ý ¹æ
»ç¼± »çÁø °èÃø ¹× °è¼ö ¿µ»ó °èÃøÀ» ½ÃÇàÇÏ¿© ±× ¿ÀÂ÷¸¦ ºñ±³ÇÏ¿´´Ù.
¿¬±¸Àç·á´Â 11¿¡¼­ 13¼¼ »çÀÌÀÇ È¯ÀÚ 48¸íÀÇ Ãø¸ð µÎºÎ¹æ»ç¼±±Ô°Ý»çÁø 96¸Å¸¦ ÀÌ¿ëÇÏ¿´À¸
¸ç °¢ °èÃøÇ׸ñÀÇ ÃøÁ¤Ä¡ Â÷ÀÌÀÇ Æò±Õ ¹× ¿ÀÂ÷ÆÛ¼¾Æ®¸¦ ±¸ÇÏ¿´´Ù.
±× °á°ú´Â ´ÙÀ½°ú °°´Ù.
1. ¸ðµç Ç׸ñ¿¡¼­ ÀÏ¹Ý °èÃøÀÇ ¹Ýº¹ÃøÁ¤±ºÀÇ ÃøÁ¤Ä¡ Â÷°¡ °¡Àå ÀÛ¾ÒÀ¸¸ç, °è¼ö ¿µ»ó °èÃø
ÀÇ ¹Ýº¹ÃÔ¿µ±ºÀÇ ÃøÁ¤Ä¡ Â÷°¡ °¡Àå ÄÇ´Ù.
2. ÀÏ¹Ý °èÃø°ú °è¼ö ¿µ»ó °èÃø°£ Åë°èÇÐÀûÀ¸·Î À¯ÀǼºÀÖ´Â Â÷À̸¦ º¸ÀÎ Ç׸ñÀº ¹Ýº¹ÃøÁ¤
±º°£ÀÇ S-Go, Ar-Go, S-Ar-Go ¹× S-sN-sNT¿´´Ù.
3. ¹Ýº¹ÃøÁ¤±º°ú ¹Ýº¹ÃÔ¿µ±º°£ Åë°èÇÐÀûÀ¸·Î À¯ÀǼºÀÖ´Â Â÷À̸¦ º¸ÀÎ Ç׸ñÀº ÀÏ¹Ý °èÃø½Ã
ÀÇ N-S-Ar, MP-Ll ¹× S-sN-sPogÀ̾úÀ¸¸ç, °è¼ö ¿µ»ó °èÃø½ÃÀÇ S-N, Go-Me ¹× N-A¿´
´Ù.
4. ¿ÀÂ÷ÆÛ¼¾Æ®´Â ÀÏ¹Ý °èÃø½Ã´Â ¹Ýº¹ÃÔ¿µ±ºÀÇ A-N-B ¹× N-A, °è¼ö ¿µ»ó °èÃø½Ã´Â ¹Ýº¹
ÃÔ¿µ±ºÀÇ N-S-Ba ¹× A-N-B¿¡¼­ Å©°Ô ³ªÅ¸³µ´Ù.
5. ÀÏ¹Ý °èÃø½ÃÀÇ Ar-Go¹× N-S-Ar, °è¼ö ¿µ»ó °èÃø½ÃÀÇ S-N, N-A, S-N-B ¹× N-S-Ba
Ç׸ñÀº ¹Ýº¹ÃøÁ¤±º¿¡ ºñÇÏ¿© ¹Ýº¹ÃÔ¿µ±º¿¡¼­ µÎ¹è ÀÌ»óÀÇ ¿ÀÂ÷ÆÛ¼¾Æ®¸¦ ³ªÅ¸³»¾ú´Ù.
#ÃÊ·Ï#
The purpose of this study is to evaluate the cephalometric reproducibility In digitized
cephalometric radiography by comparing the measurement errors between the
remeasured and retaken conventional and digitized lateral cephalometric radiography. The
mean of the differences and error percentage of each cephalometric measurement were
obtained using 96 lateral cephalometric radiography from 48 patients between the age of
11 and 13.
The results were as follows;
1. The repeated measurement group of conventional radiography showed least amount
of mean differences while those of the retaken measurement group of digitized image
showed largest amount of mean differences in every measurement.
2. The measurements which showed statistically significant difference between the
conventional radiography and digitized image were S-Go, Ar-Go, S-Ar-Go and
S-sN-sNT in repeated measurement group.
3. The measurements which showed statistically significant di(ference between the
repeated and retaken measurement groups were N-S-Ar, MP-Ll and S-sN-sPog in
conventional radiography and S-N, Go-Me and N-A in digitized image.
4. Large amount of error percentage was shown at A-N-B and N-A in retaken
measurement group of conventional radiography and N-S-Ba and A-N-B in retaken
measurement group of digitized image.
5. The amount of error percentage at Ar-Go and N-S-Ar in retaken measurement
group of conventional radiography and S-N, N-A ,S-N-B and N-S-Ba in retaken
measurement group of digitized image was more than double than those from
remeasured groups.

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