À̵¿Çü Ä¡°ú X¼± ¹ß»ýÀåÄ¡ÀÇ °ø°£¼±·® ºÐÆ÷
Spatial Dose Distribution from Portable Hand-Held Dental X-Ray Equipment
ÇÑ°æ¼ø, ¾È¼º¹Î,
¼Ò¼Ó »ó¼¼Á¤º¸
ÇÑ°æ¼ø ( Han Gyeong-Soon ) - °¡Ãµ´ëÇб³ º¸°Ç°úÇдëÇÐ Ä¡À§»ýÇаú
¾È¼º¹Î ( Ahn Sung-Min ) - °¡Ãµ´ëÇб³ º¸°Ç°úÇдëÇÐ ¹æ»ç¼±Çаú
KMID : 1023420150150030254
Abstract
Ä¡°úº´ÀÇ¿ø¿¡¼ »ç¿ëÇÏ°í ÀÖ´Â À̵¿Çü Ä¡°ú X¼± ¹ß»ýÀåÄ¡¸¦ ÀÌ¿ëÇÏ¿© µÎ°æºÎ ¸¶³×Å·¿¡ X¼±À» Á¶»çÇÒ ¶§ ÁÖº¯ÀÇ °ø°£¼±·®À» ÃøÁ¤ÇÏ°í, µ¿ÀÏÇÑ ¹æ¹ýÀ¸·Î °íÁ¤Çü X¼± ¹ß»ýÀåÄ¡¿¡ Àû¿ëÇÏ¿© ÃøÁ¤µÈ °ø°£¼±·®À» »óÈ£ ºñ±³Çϸç, ´õºÒ¾î ±â±â ¹× À§Ä¡º° °ø°£¼±·®À» ºñ±³ ºÐ¼®ÇÑ °á°ú´Â ´ÙÀ½°ú °°´Ù. À̵¿Çü X¼± ¹ß»ýÀåÄ¡ÀÇ Æò±Õ °ø°£¼±·®Àº 37.51 ¥ìSv·Î °íÁ¤Çü X¼± ¹ß»ýÀåÄ¡ÀÇ 10.77 ¥ìSvº¸´Ù ¸Å¿ì ³ô¾Ò´Ù(p£¼0.001). À̵¿Çü X¼± ¹ß»ýÀåÄ¡ÀÇ ±â±âº° °ø°£¼±·®Àº 17.77 ¥ìSvºÎÅÍ 68.90 ¥ìSv±îÁö Å« Â÷À̸¦ ³ªÅ¸³Â´Ù(p£¼0.05). À§Ä¡º°·Î´ÂÁ÷Àü À§Ä¡°¡ 54.14 ¥ìSv·Î °¡Àå ³ô¾Ò°í, Á÷¿ì À§Ä¡°¡ 13.60 ¥ìSv·Î °¡Àå ³·¾ÒÀ¸¸ç, Á÷ÁÂ¿Í Á÷ÈÄ À§Ä¡´Â 42.12 ¥ìSv, 40.18 ¥ìSv·Î À¯»çÇÏ¿´´Ù(p£¼0.01). ÀÌ»óÀÇ °á°ú¸¦ ÅëÇØ À̵¿¿ë Ä¡°ú X¼± ¹ß»ýÀåÄ¡´Â À̵¿ ºÒ°¡´ÉÇÑ È¯ÀÚ¸¸À» ´ë»óÀ¸·Î Á¦ÇÑÀûÀ¸·Î ½ÃÇàÇÏ¿©¾ß Çϸç, ¹Ýµå½Ã ȯÀÚ¿Í ¼úÀÚ ¸ðµÎ³³ ¹æ¾îº¹À» Âø¿ëÇÏ¿© ¹æ»ç¼± ÇÇÆøÀ» ÃÖ¼ÒÈÇØ¾ß ÇÒ °ÍÀÌ´Ù.
To compare the stationary dental X-ray generator and the portable dental X-ray generator and to understand spatial radiation dose depended on locations by measuring spatial radiation dose of the portable dental X-ray generator. The researchers used an Ionization chamber to measure spatial radiation dose which was generated while applying X-ray radiation to real bone skull phantom with both portable and stationary dental X-ray generator. There were 4 measurement locations which were immediate anterior, right, left and posterior. Distance of measurement was 50 cm in every location and the recorded result is an average of two applications of X-ray radiation to the maxillary molar area under the condition of 70 kVp, 3 mA, 0.1 sec. Average spatial radiation dose of portable X-ray generator was 37.51 ¥ìSv, much higher than that of stationary X-ray generator which was 10.77 ¥ìSv (p£¼0.001). The result of the spatial radiation dose of the portable X-ray generator showed a huge difference depending on types of units which varied from 17.77 ¥ìSv to 68.90 ¥ìSv (p£¼0.05), also depending on the measurement location, immediate anterior resulted in the highest radiation dose of 54.14 ¥ìSv and immediate right was the lowest of 13.60 ¥ìSv. Immediate left and posterior, however, resulted in similar radiation dose which were 42.12 ¥ìSv, 40.18 ¥ìSv (p£¼0.01). With this result, we claim that usage of portable dental X-ray generator should be restricted to patients who can?t move and exposure to radiation should be minimized by wearing lead-apron.
Å°¿öµå
Portable hand-held dental X-ray equipment; Radiation; Radiation defense; Spatial dose
¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸
µîÀçÀú³Î Á¤º¸