Background
Methods
Study population
Computed tomographic colonography
Colonoscopy
Image analysis
Surgery
Benefit score analysis
Cost
Adverse events
Statistical analysis
Results
Demographic parameters
Parameters | Value | |
---|---|---|
Patients | 318 | |
Age (years) | Minimum | 30 |
Maximum | 75 | |
Mean ± SD | 65.12 ± 7.28 | |
Gender | Male | 135(42) |
Female | 183(58) | |
Ethnicity | Han Chinese | 292(92) |
Mongolian | 23(7) | |
Tibetan | 3(1) | |
Symptoms | Abdominal pain | 201(63) |
Rectal bleeding | 53(17) | |
Change in bowel habit | 278(87) | |
Anemia | 171(54) | |
Weight loss | 151(48) | |
Route of referral | Gastroenterology | 205(64) |
Colorectal surgical clinic | 85(27) | |
Geriatrics | 28(9) |
Diagnostic performance
Parameters | Surgical pathology | Computed tomographic colonography | Colonoscopy | ||
---|---|---|---|---|---|
Patients | 77 | 318 | *p-value | 318 | *p-value |
Polyp ≥10 mm ø | 25(32) | 27(8) | 0.863 | 23(7) | 0.859 |
Polyps < 10 mm ø but suspicious | 49(64) | 47(15) | 41(13) | ||
Non suspicious and < 10 mm ø polyps | 3(4) | 239(75) ** | < 0.0001 | 247(78)** | < 0.0001 |
Inconclusive results | 0(0) | 5(2) | 0.588 | 7(2) | 0.354 |
Parameters | Computed tomographic colonography | Colonoscopy |
---|---|---|
For polyp ≥10 mm ø | 0.926 | 0.920 |
For polyps < 10 mm ø but suspicious | 0.959 | 0.837 |