Diagn車stico auxiliado por computador na detecˋˋo de n車dulos pulmonares pela tomografia computadorizada com m迆ltiplos detectores: estudo preliminar de 24 casos

作者：Capobianco; Julia; Jasinowodolinski; Dany; Szarf; Gilberto

来源：Jornal Brasileiro de Pneumologia, 2008.

DOI：10.1590/S1806-37132008000100006

• image interpretation
• computer-assisted
• coin lesion
• pulmonary
• tomography
• x-ray computed.

objectives: to evaluate the performance of a computer program designed to facilitate the detection of pulmonary nodules using multidetector computed tomography (mdct) scans of the chest. methods: we evaluated 24 consecutive mdct scans of the chest at the fleury diagnostic imaging center during the period from october 7 to october 19 of 2006, using a 64-channel ct scanner. the study comprised 12 females and 12 males, ranging from 35 to 77 years of age (mean, 57.9 years). double reading and a computer-aided diagnosis (cad) system were used in order to perform two independent analyses of the data. the nodules found using both methods were recorded, and the data were compared. results: the total sensitivity of cad for the detection of nodules was 16.5%, increasing to 55% when nodules 1 cm. more than 99% of true nodules detected by cad were registered in the image double reading process. conclusions: in this preliminary 24-case study, the sensitivity of computer program tested was not significantly greater than that of the double-reading process that is routinely performed in this facility.