ct虛擬結(jié)腸鏡(編輯修改稿)
2024-10-05 21:02 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 tual colonoscopy ? The guidelines: ? establish a sensitivity threshold for remended tests ? delineate important qualityrelated factors for each form of testing ? continue to emphasize options for testing ? An overriding goal of this update is to provide a practical guideline for physicians and the public 第十三頁(yè)，共二十七頁(yè)。 14 2024 CRC Screening Guidelines Average risk adults age 50 and older ? Tests that detect adenomatous polyps and cancer – Flexible sigmoidoscopy (FSIG) every 5 years*, or – Colonoscopy every 10 years, or – Double contrast barium enema (DCBE) every 5 years*, or – CT colonography (CTC) every 5 years* ? Tests that primarily detect cancer – Annual guaiacbased fecal occult blood test (gFOBT)* with high test sensitivity for cancer, or – Annual fecal immunochemical test (FIT)* with high test sensitivity for cancer, or – Stool DNA test (sDNA)*, with high sensitivity for cancer, interval uncertain *Note: All positive screening tests should be followed up with colonoscopy 第十四頁(yè)，共二十七頁(yè)。 15 原 理 第十五頁(yè)，共二十七頁(yè)。 16 CT虛擬結(jié)腸鏡 ( CT Colonography，CTC) 第十六頁(yè)，共二十七頁(yè)。 17 CT虛擬結(jié)腸鏡 ( CT Colonography， CTC) CTC 圖像 光學(xué)結(jié)腸鏡 第十七頁(yè)，共二十七頁(yè)。 18 CT Colonography 3D view Polyp 2D view Courtesy of Beth McFarland, MD 第十八頁(yè)，共二十七頁(yè)。 19 CT Colonography: Rationale ? Allows detailed evaluation of the entire colon ? Minimally invasive (rectal tube for air insufflation) ? No sedation required ? A number of studies have demonstrated a high level of sensitivity for cancer and large polyps 第十九頁(yè)，共二十七頁(yè)。 20 CTC vs. Optical Colonoscopy: Sensi
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