The value of CT colonography in the diagnosis of colon occupying lesion
[Abstract]Objective: To observe and evaluate the value of CT angiography in the identification of colonic lesions and provide effective diagnostic methods and basis for clinical diagnosis.. METHODS: A retrospective analysis of the clinical diagnostic data of 76 patients treated with CT colonoscopy in our hospital from January 2014 to December 2016 was reviewed. Pathological examination was used as a gold standard to evaluate CT colonization The diagnostic value of lesions and the clinical significance of colon cancer staging. Results: There were 50 patients with grade I, 23 cases of grade II, 3 cases of grade III and 3 cases of grade III. The qualified rate of preparation was 97.37%, all patients were symptoms of adverse reactions. CT colonoscopy results showed that 39 patients were diagnosed with colon cancer, including 11 patients with simultaneous abdominal lymph nodes, 13 patients were newly diagnosed with inflammatory polyps, 15 patients were newly diagnosed adenoma, 6 patients were newly diagnosed Cancer, 3 patients were newly diagnosed with lymphoma. Pathological examination showed that 39 cases of colon cancer patients, 16 cases of inflammatory polyps, 13 cases of adenoma patients, 5 cases of metastatic cancer patients, 3 cases of lymphoma patients, as a gold standard for comparison, CT colonoscopy on the colon The coincidence rate of cancer staging was 96.05% (73/76). After examination, P <0.05. CT colorectal examination 2 cases of inflammatory polyps were misdiagnosed as adenoma, 1 case of inflammatory polyps was misdiagnosed as metastatic cancer, the detection technique misdiagnosis rate was 3.41%. CT colorectal examination results showed that A, 9 cases, B 4 cases, C1 18 cases, C2 4 cases and D period 4. Pathological Dukes stage A in 7 cases, B 8 cases, C1 16 cases, C2 4 cases and D 4 cases, the pathological stage of the results of the gold standard, CT colony examination coincidence rate of 89.74% (35 / 39), tested, K = 0.874, P = 0.000. CT colorectal examination in 2 cases of B patients were misdiagnosed as A phase, 2 cases of B patients were misdiagnosed as C1 period, the detection technique of misdiagnosis rate of 10.26%. Conclusion: CT colonic angiography is simple, practical and worthy of diagnosis, which is helpful for the clinical diagnosis of colonic lesions.
[Key words] CT colonic angioplasty; colonic lesions; colon cancer staging;identify