KWAK, JUNG WON,곽정원,OH, JEONG SU,오정수,CHOI, EUN KUNG,최은경,KIM, JONG HOON,김종훈,AHN, SEUNG DO,안승도,CHO, BYOUNG CHUL,조병철,MOON, DAE HYUK,문대혁,RYU, JIN SOOK,류진숙,KIM, JAE SEUNG,김재승,OH, SEUNG JUN,오승준,LEE, JONG JIN
申请号：
KR1020120045648
公开号：
KR1013230340000B1
申请日:
2012.04.30
申请国别(地区):
KR
年份:
2013
代理人:
摘要：
The present invention relates to a cone beam computed tomography (CT) scanning device using single energy photon source and a method for acquiring images using the same. According to the present invention, an object is positioned between multiple optical sources and image detecting parts facing each other and the present invention relates to an image acquiring method using a cone beam CT scanning device photographing the object by rotating the multiple optical sources and image detecting parts. Moreover the present invention comprises the step of selecting one optical source among multiple optical sources having single energy photon source and a different energy band； a step of performing cone beam CT scanning for the object by rotating the selected optical source with the object at the center； a step of measuring photon energy absorbed by each pixel included at the image detecting part of a 2D panel shape while performing the cone beam CT scanning； a step of calculating the number of photons corresponding to the energy band of the selected optical source before storing； and a step of generating 3D CT images using the stored photon number information for each pixel. According to the present invention, the influence of scattering can be efficiently eliminated by using images of the single photon source when generating a 3D CT image. [Reference numerals] (AA) Start；(BB) End；(S510) Selecting an optical source among multiple optical sources；(S520) Performing conbeam CT scanning for an object；(S530) Measuring photon energy absorbed by each pixel included in a 2D panel；(S540) Removing a photon energy spectrum part except for an energy band of the selected optical source；(S550) Calculating the number of photons corresponding to the energy band of the selected optical source；(S560) Generating 3D CT images using the stored photon number information for each pixel본 발명은 단일 에너지 광자 선원을 이용한 콘빔 CT 촬영 장치 및 이를 이용한 영상 획득 방법에 관한 것이다. 본 발명에 따르면, 오브젝트를 중심으로 복수의 광원과 영상 검출부가 반대편에 위치하며, 상기
