Computed tomography colonography compared with conventional colonoscopy for the detection of colorectal polyps
| Autor: | María, Chaparro Sánchez, Lourdes, del Campo Val, José, Maté Jiménez, José, Cantero Perona, Antonio, Barbosa, David, Olivares, Sam, Khorrami, Ricardo, Moreno-Otero, Javier P, Gisbert |
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| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Colonic Polyps Colonoscopy Diagnostic accuracy Multidetector ct Diagnostic Colonoscopy Computed tomographic Polyps Computed Tomography Colonography otorhinolaryngologic diseases medicine Humans Conventional colonoscopy neoplasms Aged Procedure time Aged 80 and over Hepatology medicine.diagnostic_test Rectal Neoplasms business.industry Gastroenterology Reproducibility of Results pathological conditions signs and symptoms Middle Aged digestive system diseases surgical procedures operative Female Radiology business Nuclear medicine Colonography Computed Tomographic |
| Zdroj: | Gastroenterología y Hepatología. 30:375-380 |
| ISSN: | 0210-5705 |
| Popis: | Objective To determine the diagnostic accuracy of computed tomography colonography (CTC) compared with conventional colonoscopy (CC). Methods Patients with an indication of CC were included. Fifty patients underwent CTC using multidetector CT before diagnostic colonoscopy was performed by an expert colonoscopist. Diagnostic accuracy was assessed individually both for each polyp and for each patient. Results Fifty patients were included and 40 polyps were analyzed. The by-polyp sensitivity of CTC was 15% for polyps 5 mm or less, 75% for polyps 5-10 mm and 75% for polyps 10 mm or larger. By-patient specificity was 6% for polyps 5 mm or less, 75% for polyps 5-10 mm and 80% for polyps 10 mm or larger. The specificity of CTC was 94%. CTC was preferred over CC by 90% of the patients. The mean colonoscopy examination time was 30 minutes for CC and 35 minutes for CTC (p Conclusions The sensitivity of CTC is moderate in detecting polyps larger than 10 mm, low in detecting 5-10 mm polyps and very low in detecting those less than 5 mm. The overall specificity of the procedure was 94%. Procedure time was lower with CC than with CTC but the latter was better tolerated by most patients. |
| Databáze: | OpenAIRE |
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