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Computed tomographic colonography ( CTC ); colorectal cancer diagnosis with CTC in an A uckland population
Author(s) -
Moore Helen,
Dodd Nicholas
Publication year - 2013
Publication title -
journal of medical imaging and radiation oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 43
eISSN - 1754-9485
pISSN - 1754-9477
DOI - 10.1111/1754-9485.12062
Subject(s) - medicine , colorectal cancer , computed tomographic , colorectal cancer screening , radiology , population , medical physics , colonoscopy , cancer , computed tomography , environmental health
Aim To determine the sensitivity of computed tomographic colonography ( CTC ) in the detection of colorectal cancer in our population and evaluate the reasons why these lesions may be missed on CTC . Methods All patients who underwent CTC in the 65‐month period from 1 J anuary 2004 to 1 J uly 2009 were included in the analysis. Demographic data and CTC findings were recorded, according to the CT C olonography R eporting and D ata S ystem. Data were cross‐matched with the N ational C ancer R egistry results for colorectal cancer cases between 1 J anuary 2004 and 1 O ctober 2009, 3 months longer to include any delayed diagnoses. Results There were 2026 consecutive CTC patients, comprising 52.6% female, average age of 60 years; range 19–87. Approximately 84% were symptomatic. There were 45 confirmed colorectal cancers among this patient group in the N ational C ancer R egistry during the relevant time period compared with 43 suspected cancers on CTC , giving a miss rate of 2 of 45, or 4.4%. Conclusion The sensitivity of 95% for CTC in the detection of colorectal cancer compares favourably with the published national and international data.