Multidedector computed tomographic colonography and virtual colonoscopy

Yıl 2009, Cilt: 17 Sayı: 2, 99 - 104, 01.08.2009

Kemal Arda Nazan Çiledağ

https://doi.org/10.17940/endoskopi.74930

Öz

Colorectal cancers are the 3rd most common type of cancer and 2nd leading cause of cancer death in the United States. Colorectal cancer screening, detects colorectal cancers at an earlier stage, reduces colorectal cancer mortality. Although a variety of colon screening tests such as fecal occult blood testing, double-contrast barium enema, sigmoidoscopy, colonoscopy are available, none is ideal and also they are expensive, invasive and not easily tolerable techniques. Virtual colonoscopy and computed tomographic colonography are promising to be the primary, non-invasive method of screening of colorectal cancers.

Anahtar Kelimeler

Colonoscopy, colonography, virtual, computed tomography

Multidedektör BT kolonografi ve sanal kolonoskopi

Öz

Kolorektal kanserler Amerika Birleşik Devletlerinde 3. en sık kanser nedeni ve kanserden en sık 2. ölüm nedenidir. Kolorektal kanserlerin tarama yöntemleri ile erken evrede saptanması, kolorektal kanserlere bağlı mortalite oranı nı düşürmektedir. Kolorektal kanser taramasında gaitada gizli kan testi, çift kontrastlı kolon grafisi, sigmoidoskopi, kolonoskopi gibi pek çok yöntem kullanılmakla birlikte, hiçbiri ideal değildir ve ayrıca pahalı, invaziv ve kolay tolere edilebilen teknikler değillerdir. Bilgisayarlı tomografik kolonografi ve sanal kolonoskopi kolorektal kanserler taramasında primer, noninvaziv inceleme tekniği olma konusunda umut vaat etmektedir.

Anahtar Kelimeler

Kolonoskopi, kolonografi, sanal, bilgisayarlı tomografi

Kaynakça

• Parker SH, Torry T, Bolden S, Windigo PA. Cancer Statistics 1996. Ca Cancer J Clin 1996;65:5-27.
• Chen SC, Lu DSK, Hecht JR, Kadell BM. CT colonography: value of scanning in both the supine and prone positions. AJR 1999;172:595-9.
• Vining DJ. Virtual endoscopy: is it reality? Radiology 1996;200:30-1.
• Dave SB, Wang G, Brown BP, et al. Straightening the colon with curved cross sections: an approach to CT colonography. Acad Radiol 1999;6:398-410.
• Hill MJ, Morrison BC, Bussey HJR. Etiology of adenoma-carcinoma se- quence in the large bowel. Lancet 1978;1:245-7.
• Winawer SJ, Fletcher RH, Miller L, et al. Colorectal cancer screening: Clinical guidelines and rationale. Gastroenterology 1997;112:594-642.
• Winawer SJ, Fletcher RH, Miller L, et al. Colorectal cancer screening: cli- nical guidelines and rationale. Gastroenterology 1998;114:625.
• Winawer SJ, Fletcher RH, Miller L, et al. Colorectal cancer screening: cli- nical guidelines and rationale. Gastroenterology 1997;112:1060.
• Muto T, Bussey HJR, Morson BC. The evaluation of cancer of the colon and rectum. Cancer 1975;36:2251-70.
• Winawer SJ, Zauber AG, Ho MN, et al. Prevention of colorectal cancer by colonoscopic polypectomy. N Engl J Med 1993;329:1977-81.
• Vining DJ, Gelfand DW. Noninvazive colonoscopy using helical CT scanning. 3D reconstruction and virtual reality. Paper presented at the 1994 meeting of the Society of Gastrointestinal Radiologists, Maui, Ha- wai, USA. 13-18 February 1994.
• Byers T, Levin B, Rothenberger D, et al. American Cancer Society guide- lines for screening and surveillance for early detection of colorectal polyps and cancer: Update 1997. CA. Cancer J Clin 1997;47:154-60.
• Wang G, McFarland EG, Brown BP, Vannier MW. GI tract unraveling with curved cross-sections. IEEE Trans Biomed Eng 1998;17:318-22.
• Reed JE, Johnson CD. Virtual pathology: a new paradigm for interpreta- tion of computed tomographic colography. In: Hanson KM. ed. Medical imaging 1998: image processing, proceedings of SPIE. Washington: SPI- E. 1998:439-49.
• Paik DS, Beaulieu CF, Jeffrey RB Jr, Napel S. Virtual colonoscopy visu- alization modes using cylindrical and planar map projections: techniqu- e and evaluation (abstr.) Radiology 1998;209:429.
• Johnson PT, Heath DG, Cabrol B, Fishman EK. Three dimensional CT: real time interactive volume rendering. AJR 1996;167:581-4.
• Hara AK, Johnson CD, Reed JE, et al. Colorectal polyp detection with CT colography: two -versus three- dimensional techniques-work in prog- ress. Radiology 1996;200:49-54.
• Rex DK. Colonoscopy: review of its yield for cancers and adenomas by indication. Am J Gastroenterol 1995; 90:353-365.
• Eddy DM, Nugent TW, Eddy JF, et al. Screening for colorectal cancer in a high-risk population: results of a mathematical model. Gastroentero- logy 1987;92:682-92.
• Hara AK, Johnson CD, Reed JE, et al. Detection of colorectal with CT co- lography: initial assessment of sensitivity and specificity. Radiology 1997;205:59-65.
• Fenlon HM, Nunes PD, Schrov CP, Barish AM, Clarke PD, Ferrucci JT. A comparison of virtual and conventional colonoscopy for the detection of colorectal polyps. N Engl J Med 1999;341:1496-503.
• Lazovich D, Weiss NS, Stevens NG, et al. A case-control study to evalua- te the effectiveness of screening for fecal occult blood. J Med Screen 1995;2:84-9.
• Dachman AH, Kuniyoshi JK, Boyle Cm, et al. CT colonography with three-dimensional problem solving for detection of colon polyps. AJR 198;171:989-95.
• Harvey CJ, Amin Z, Hare CMB, et al. Helical CT pneumocolon to assess colonic tumors:radiologic-pathologic correlation. AJR 1998;170:1439- 43.
• Royster AP, Fenlon HM, Clarke PD, et al. CT colonoscopy of colorectal neoplasms: two-dimensional and three-dimensional virtual-reality tech- niques with colonoscopic correlation. AJR Am J Roentgenol 1997;169:1237-42.
• Fenlon HM, Mc Aneny DB, Nunes DP, et al. Occlusive colon carsinoma: virtual colonoscopy in the preoperative evaluation of the proximal colon. Radiology 1999;210:423-8.
• Rex DK, Cutler CS, Lemmel GT, et al. Colonoscopic miss rates of adeno- mas determined by back -to- back colonoscopies. Gastroenterology 1997;112:24-8.
• Marshall JB, Barthel JS. The frequency of total colonoscopy and terminal ileal intubation in the 1990s. Gastrointest Endosc 1997;46:497-502.
• Church JM. Colonoscopy. In: Church JM. Ed. Endoscopy of the colon, rectum and anus. New York: Igaku-Shoin. 1995:99-135.
• Winawer S, Fletcher R, Rex D, et al. Colorectal cancer screening and sur- veillance: clinical guidelines and rationale-update based on new eviden- ce. Gastroenterology 2003;124:544-60.
• Smith RA, Cokkinides V, Brawley OW. Cancer screening in the United States, 2009: A review of current American Cancer Society guidelines and issues in cancer screening. CA Cancer J Clin 2009;59:27-41.
• Lieberman D, Moravec M, Holub J, et al. Polyp size and advanced histo- logy in patients undergoing colonoscopy screening: implications for CT colonography. Gastroenterology 2008;135:1100-5.
• van Rijn JC, Reitsma JB, Stoker J, et al. Polyp miss rate determined by tandem colonoscopy: a systematic review. Am J Gastroenterol 2006;101: 343-50.