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©2009 The WJG Press and Baishideng.
World J Gastroenterol. Mar 28, 2009; 15(12): 1487-1492
Published online Mar 28, 2009. doi: 10.3748/wjg.15.1487
Published online Mar 28, 2009. doi: 10.3748/wjg.15.1487
Table 1 Characteristics of the study population
| Hospital | Number of the subjects | Type of CT colonogrphy | kVp | mAs | Pitch | Slice thickness/reconstruction intervalfor extracolonic finding (mm) |
| A | 278 | Sensation 64; Siemens, Erlangen, Germany | 120 | 70 | 1.5 | 3/3 |
| B | 157 | LightSpeed Ultra 8 or 16; GE Medical systems, Milwaukee, WI | 120 | 70 | 1.35 | 1.25/1.25 |
| C | 152 | Sensation 16; Siemens, Erlangen, Germany | 120 | 30 | 1 | 5/5 |
| D | 135 | Brilliance 40-channel MDCT, Phillips Medical System, Netherlands | 120 | 160 | 1.176 | 0.5/0.9 |
| E | 92 | LightSpeed 16; GE healthcare, Milwaukee, Wis | 120 | 200 | 1.375 | 1.25/3.75 |
| F | 65 | MX 8000 IDT 16, Phillips Eindhoven, Netherlands | 120 | 200 | 1 | 2/1 |
| G | 41 | Sensation 16; Siemens, Erlangen, Germany | 120 | 30 | 1 | 5/5 |
Table 2 Results of 920 computed tomographic colonoscopy examinations n (%)
| Number of extracolonic findings | Number of subjects |
| 0 | 388 (42.2) |
| 1 | 403 (43.8) |
| 2 | 105 (11.4) |
| 3 | 19 (2.1) |
| 4 | 5 (0.5) |
Table 3 Proportion of extracolonic lesions according to the clinical significance
| Extracolonic findings | Number |
| Highly significant (n = 60) | |
| Solid organ mass including malignancy | 421 |
| Cardiomegaly/pericardial effusion | 5 |
| Lymphadenopathy greater than 1 cm | 3 |
| Peritoneal carcinomatosis | 3 |
| Abscess | 3 |
| Aortic lesion | 2 |
| Small bowel obstruction | 2 |
| Intermediately significant (n = 250) | |
| Benign solid organ lesion | 1412 |
| Renal stone/hydronephrosis | 28 |
| Gall bladder stone/polyp/cholecystitis | 22 |
| Liver cirrhosis | 13 |
| Bile duct stone/dilatation/hemobilia | 9 |
| Small bowel inflammation | 8 |
| Vascular lesion (aortic stenosis, varix, etc) | 6 |
| Bronchiectasis/emphysema | 5 |
| Hepatosplenomegaly | 5 |
| Pleural effusion | 3 |
| Inguinal hernia | 3 |
| Ascites of unknown cause | 3 |
| Chronic pancreatitis | 2 |
| Mesenteric fat necrosis | 1 |
| Spinal stenosis with destruction | 1 |
| Lowly significant (n = 382) | |
| Renal cyst | 143 |
| Hepatic cyst | 114 |
| Fatty liver | 39 |
| Vascular calcification/atherosclerosis | 19 |
| Chronic pulmonary disease/pleural thickening | 16 |
| Accessory spleen/splenic infarction | 15 |
| Hepatic calcification | 10 |
| Benign osteolytic lesion | 8 |
| Hiatal hernia | 6 |
| Benign prostatic hypertrophy | 5 |
| Colonic diveticulosis | 4 |
| Tiny pancreas cyst | 1 |
| Mesenteric calcification | 1 |
| Gallbladder sludge | 1 |
Table 4 Baseline characteristics according to the clinical significance of extracolonic lesions n (%)
| Highly significant lesion (n = 60) | Intermediately significant lesion (n = 250) | Lowly significant lesion (n = 382) | No extracolonic lesion (n = 388) | P-value | |
| Age (mean ± SD) | 58.3 ± 16.4 | 57.9 ± 13.8 | 59.0 ± 11.9 | 54.4 ± 13.1 | < 0.001 |
| Male:Female | 36:24 | 116:134 | 237:145 | 233:155 | 0.001 |
| Indication | < 0.001 | ||||
| Screening | 16 (26.7) | 76 (30.4) | 155 (40.6) | 160 (41.2) | |
| Family history | 1 (1.7) | 4 (1.6) | 4 (1.0) | 13 (3.4) | |
| Past history | 10 (16.7) | 38 (15.2) | 55 (14.4) | 93 (24.0) | |
| GI bleeding | 5 (8.3) | 19 (7.6) | 11 (2.9) | 17 (4.4) | |
| IDA | 1 (1.7) | 7 (2.8) | 8 (2.1) | 0 (0.0) | |
| Bowel habit change | 6 (10.0) | 27 (10.8) | 44 (11.5) | 38 (9.8) | |
| Abdominal pain | 17 (28.2) | 58 (23.2) | 78 (20.4) | 56 (14.4) | |
| Others | 4 (6.7) | 21 (8.4) | 27 (7.1) | 11 (2.8) | |
| CT with enhancement1 | 53 (88.3) | 225 (90.0) | 320 (83.7) | 305 (78.6) | 0.001 |
| Hospital | < 0.001 | ||||
| A (n = 313) | 23 (38.4) | 61 (24.4) | 77 (20.2) | 151 (38.9) | |
| B (n = 214) | 9 (15.0) | 86 (34.4) | 86 (22.6) | 33 (8.5) | |
| C (n = 171) | 5 (8.3) | 24 (9.6) | 60 (15.7) | 81 (20.9) | |
| D (n = 149) | 2 (3.3) | 31 (12.4) | 70 (18.3) | 45 (11.6) | |
| E (n = 104) | 10 (16.7) | 20 (8.0) | 44 (11.5) | 30 (7.7) | |
| F (n = 73) | 5 (8.3) | 16 (6.4) | 12 (3.1) | 40 (10.3) | |
| G (n = 59) | 6 (10.0) | 12 (4.8) | 33 (8.6) | 8 (2.1) |
Table 5 Further managements according to the clinical significance of extracolonic lesions n (%)
| Highly significant lesion (n = 60) | Intermediately significant lesion (n = 250) | Lowly significant lesion (n = 382) | |
| Diagnostic intervention | |||
| US | 6 (10.0) | 108 (43.2) | 31 (8.1) |
| CT | 17 (28.3) | 65 (26.0) | 21 (5.5) |
| MRI | 4 (6.7) | 14 (5.6) | 0 (0.0) |
| Biopsy | 8 (13.3) | 3 (1.2) | 2 (0.5) |
| Endoscopy | 6 (10.0) | 6 (2.4) | 1 (0.3) |
| Other tests | 18 (30.0) | 25 (10.0) | 10 (2.6) |
| Not done | 1 (1.7) | 29 (11.6) | 317 (83.0) |
| Therapeutic intervention | 49 (81.7) | 52 (20.8) | 11 (2.9) |
- Citation: Park SK, Park DI, Lee SY, Lee SK, Kim YH, Lee SJ, Byeon JS, Huh KC, Shim KN. Extracolonic findings of computed tomographic colonography in Koreans. World J Gastroenterol 2009; 15(12): 1487-1492
- URL: https://www.wjgnet.com/1007-9327/full/v15/i12/1487.htm
- DOI: https://dx.doi.org/10.3748/wjg.15.1487