Application of computed tomographic colonography in diagnosis of colonic polyps / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal
;
(4): 36-40, 2009.
Article
in English
| WPRIM
| ID: wpr-302653
ABSTRACT
<p><b>OBJECTIVE</b>To assess the clinical values of computed tomographic colonography (CTC) in diagnosis of colonic polyps.</p><p><b>METHODS</b>Forty-two patients who were clinically suspicious of colonic polyps or underwent colonic polyps screening received examinations with both CTC and conventional colonoscopy. Sixteen- or 64-slice spiral computed tomography and professional imaging processing techniques were used for evaluation. Per-polyp and per-patient results were analyzed. Those by per-polyp were subsequently divided into > or = 10 mm group, 5-10 mm group, and < or =5 mm group. Sensitivity, positive predictive value (PPV), specificity, negative predictive value (NPV), and accuracy were calculated using statistical method for diagnostic studies, with conventional colonoscopy as a gold standard.</p><p><b>RESULTS</b>Ninety and 61 polyps were found by CTC and conventional colonoscopy, respectively. The per-polyp sensitivity/PPV were 80.3%/55.6% in total, and 100%/92.9%, 93.8%/65.2%, and 68.8%/ 41.5% in the > or = 10 mm group, 5-10 mm group, and < or =5 mm group, respectively. The per-patient sensitivity, PPV, specificity, NPV, and accuracy were 97.1%, 89.5%, 42.9%, 75.0%, and 88.1%, respectively.</p><p><b>CONCLUSION</b>CTC can clearly reveal the morphology of colonic polyps and be used as a routine monitoring method for the clinical diagnosis of polyps.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Diagnostic Imaging
/
Colonic Polyps
/
Predictive Value of Tests
/
Sensitivity and Specificity
/
Colonoscopy
/
Colonography, Computed Tomographic
/
Diagnosis
/
Hyperplasia
/
Neoplasms
Type of study:
Diagnostic study
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
English
Journal:
Chinese Medical Sciences Journal
Year:
2009
Type:
Article
Similar
MEDLINE
...
LILACS
LIS