Multidedector computed tomographic colonography and virtual colonoscopy

Abstract

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.

Keywords

• 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

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