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CT Colonography for Incomplete or Contraindicated Optical Colonoscopy in Older Patients

Cem Yucel1, Anna S. Lev-Toaff, Nicole Moussa and Haroon Durrani

1 All authors: Department of Radiology, Thomas Jefferson University Hospital, 132 S 10th St., Main Bldg., Ste. 763L, Philadelphia, PA 19107.


Figure 1
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Fig. 1A —79-year-old man receiving anticoagulation for atrial fibrillation with history of colonic polyps detected 10 years earlier. Patient had advanced diverticular disease of descending and sigmoid colon. In addition to supine and prone imaging, imaging was also performed with patient in right lateral decubitus position to maximize distension of left colon. Two polyps were identified only on right lateral decubitus imaging. View of gas-filled colon obtained with patient in supine position shows suboptimal distension of proximal transverse colon (arrow). A and B refer to software display.

 

Figure 2
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Fig. 1B —79-year-old man receiving anticoagulation for atrial fibrillation with history of colonic polyps detected 10 years earlier. Patient had advanced diverticular disease of descending and sigmoid colon. In addition to supine and prone imaging, imaging was also performed with patient in right lateral decubitus position to maximize distension of left colon. Two polyps were identified only on right lateral decubitus imaging. View of gas-filled colon with patient in right lateral decubitus position shows optimal distension of transverse colon. Two polyps (arrows) are visible in this view.

 

Figure 3
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Fig. 1C —79-year-old man receiving anticoagulation for atrial fibrillation with history of colonic polyps detected 10 years earlier. Patient had advanced diverticular disease of descending and sigmoid colon. In addition to supine and prone imaging, imaging was also performed with patient in right lateral decubitus position to maximize distension of left colon. Two polyps were identified only on right lateral decubitus imaging. Two-dimensional coronal image shows both polyps in proximal transverse colon.

 

Figure 4
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Fig. 1D —79-year-old man receiving anticoagulation for atrial fibrillation with history of colonic polyps detected 10 years earlier. Patient had advanced diverticular disease of descending and sigmoid colon. In addition to supine and prone imaging, imaging was also performed with patient in right lateral decubitus position to maximize distension of left colon. Two polyps were identified only on right lateral decubitus imaging. Three-dimensional endoluminal view shows both polyps and adjacent diverticulum.

 

Figure 5
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Fig. 2 —60-year-old man with prior incomplete optical colonoscopy. View of gas-filled colon obtained with patient in right lateral decubitus position shows long and tortuous centerline. Marked colonic redundancy is seen.

 

Figure 6
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Fig. 3A —CT colonography performed in 75-year-old man with history of right hemicolectomy for colon carcinoma. He had unstable angina and was being treated with warfarin sodium (Coumadin, Bristol-Myers Squibb) for atrial flutter. Optical colonoscopy with sedation was thought to be contraindicated. View of gas-filled colon obtained with patient in supine position shows foreshortened right colon and side-to-side ileocolonic anastomosis (between arrows).

 

Figure 7
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Fig. 3B —CT colonography performed in 75-year-old man with history of right hemicolectomy for colon carcinoma. He had unstable angina and was being treated with warfarin sodium (Coumadin, Bristol-Myers Squibb) for atrial flutter. Optical colonoscopy with sedation was thought to be contraindicated. Endoluminal view of anastomotic region from vantage point of lateral aspect of anastomosis (top arrow in A). Staple line (arrows) is seen, as are openings into colonic and ileal limbs.

 

Figure 8
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Fig. 3C —CT colonography performed in 75-year-old man with history of right hemicolectomy for colon carcinoma. He had unstable angina and was being treated with warfarin sodium (Coumadin, Bristol-Myers Squibb) for atrial flutter. Optical colonoscopy with sedation was thought to be contraindicated. Endoluminal view of anastomosis (black arrows) from colon. Diminutive polyp (white arrow) is incidentally noted but not reported.

 

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