한국정보과학회논문지:소프트웨어및응용 (Journal of KIISE:Software and Applications)

한국정보과학회 (Korean Institute of Information Scientists and Engineers)
권호 표지

환자 대장 CT 프로파일을 이용한 전자적 장세척 방법

An Electronic Colon Cleansing Method using a Patient Colon CT Profile

  • 김한별 (숭실대학교 정보통신 전자공학부) ;
  • 김동성 (숭실대학교 정보통신 전자공학부)
  • 발행 : 2008.08.15
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초록

가상 대장 내시경을 위해서 환자 대장 CT 프로파일을 이용한 전자적 장세척 방법을 제안한다. 제안된 방법은 관강 영역을 cubic seeded region growing(SRG) 방법을 이용하여 추출하고, 이에 인접한 tagged material(TM)을 제거한다. TM의 경계에서 Air-TM의 partial volume(PV) 효과로 발생한 찌꺼기를 제거하고, TM-soft tissue(ST)의 PVE에 의해서 제거된 ST는 환자 CT 프로파일을 이용해서 복원한다. 제안된 방법을 16명의 가상 내시경 환자 CT 데이타에 적용해서 임상의의 주관적인 평가와 computer-aided diagnosis(CAD)의 정량적 평가에서 매우 고무적인 결과를 획득했다.

This paper proposes an electronic colon cleansing method using a patient CT profile for a virtual colonoscopy. The proposed method extracts the colon using cubic seeded region growing, and removes tagged materials adjacent to the colon. Residuals produced by a partial volume effect at the boundary of air-tagged material are deleted, and the removed soft tissue pixels due to a partial volume effect at the boundary of tagged material-soft tissue are recovered using a patient CT profile. The proposed method was applied to 16 virtual colonoscopy patient data sets, and produced promising results by a subjective evaluation of a radiologist and by a quantitative evaluation of a computer-aided diagnosis system.

키워드

참고문헌

  1. 보건복지가족부 한국중앙암등록본부, "한국중앙암등록사업 연례보고서(1999.1-12)", 보건복지가족부 한국중앙암등록본부, 2001
  2. 보건복지가족부 한국중앙암등록본부, "한국중앙암등록사업 연례보고서(2002.1-12)", 보건복지가족부 한국중앙암등록본부, 2003
  3. Zalis, M.E., Perumpillichira, J.J., Magee, C, Kohlberg, G, and Hahn, P.F., "Tagging-based, electronically cleansed CT colonography: evaluation of patient comfort and image readability," RSNA, Vol.239, No.1, pp. 149-159, April 2006
  4. Sato, M., Lakare, S., Wan, M., and Kaufman, A., "A gradient magnitude based region growing algorithm for accurate segmentation," IEEE Image Processing, Vol.3, pp. 448-451, 2000
  5. Bidgoli, J.H., Ahmadian, A., Akhlaghpor, S., Alam, N.R., and Mahmodabadi, S.Z., "An efficient colon segmentation method for oral contrast-enhanced CT colonography," Proc. IEEE Engineering in Medicine and Biology Society, pp. 3429-3432, 2005
  6. Lakare, S., Chen, D., Li, L., Kaufman, A., Wax, M., and Liang, Z., "Robust colon residue detection using vector quantization based classification for virtual colonoscopy," SPIE, Vol.5031, pp. 515-520, 2003
  7. Chen, D., Li, L., Wax, M., Li, B., Kaufman, A., and Liang, Z., "Electronic colon cleansing by colonic material tagging and image segmentation for polyp detection : detection model and method evaluation," IEEE Nuclear Science Symposium Conference Record, Vol.3, pp. 131-135, 2000
  8. Wang, Z., Li X., Li, L., Li, B., Eremina, D., Lu L., and Liang, Z., "An improved electronic colon cleansing method for detection of polyps by virtual colonoscopy," Proc. IEEE Engineering in Medicine and Biology Society, pp. 6512-6515, 2005
  9. Lakare, S., Chen, D., Li, L., Kaufman, A., and Liang, Z., "Electronic colon cleansing using segmentation rays for virtual colonoscopy," SPIE, Vol.4683, pp. 412-418, 2002
  10. Lakare, S., Wan, M., Sato, M., and Kaufman, A., "3D digital cleansing using segmentation rays," Proc. IEEE, Visualization, Proceedings, pp. 37-44, 2000
  11. Zalis, M.E., Perumpillichira, J.J., Frate, C.D., and Hahn, P.F., "CT colonography: digital subtraction bowel cleansing with mucosal reconstruction, initial observations," RSNA, Vol.226, No.3, pp. 911- 917, 2003
  12. Zalis, M.E., Perumpillichira, J.J., and Hahn, P.F., "Digital subtraction bowel cleansing for CT colonography using morphological and linear filtration methods," IEEE Transactions On Medical Imaging, Vol.23, No.11, pp. 1335-1343, November 2004 https://doi.org/10.1109/TMI.2004.826050
  13. Näppi, J. and Yoshida, H., "Fully automated three- dimensional detection of polyps in fecal-tagging CT colonography,"Academic Radiology, Vol.14, No.3, pp. 287-300, 2007 https://doi.org/10.1016/j.acra.2006.11.007
  14. Nappi, J. and Yoshida, H., "Adaptive correction of the pseudo-enhancement of CT attenuation for fecal-tagging CT colonography," Medical Image Analysis, Vol.12, No.4, pp. 413-426, 2008 https://doi.org/10.1016/j.media.2008.01.001
  15. 김예빈, 김동성, "CT영상에서의 Cubic SRG를 이용한 혈관의 구조적 분할 방법", 정보 및 제어 학술회의 논문집, pp. 460-463, 2003년 11월
  16. Kim, S., Lee, J., Lee, J., Kim, J., Lefere, P.A., Han, J., and Choi, B. "Computer-aided detection of colonic polyps at CT colonography using a hessian matrix-based algorithm: preliminary study," American Journal of Roentgenology, Vol.189, pp. 41-51, July 2007 https://doi.org/10.2214/AJR.07.2072