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Updated: Dec 21, 2025

Using Micro-computed Tomography for the Assessment of Tumor Development and Follow-up of Response to Treatment in a Mouse Model of Lung Cancer
Published on: May 20, 2016
Lung Cancer Mortality and the Availability of Chest Computerized Tomography: A Longitudinal Nationwide Study
Eduardo Vieira Ponte1, Marcelo Ferretti Fanelli1, Renata Tosoni Rodrigues Ferreira1
1Faculdade de Medicina de Jundiaí, Jundiaí, Brazil.
Abstract:
Lung-cancer screening with chest computerized tomography (CT) is not easy to introduce in low-medium resource countries due to cost issues. We investigated whether the increasing availability of chest CT exams in Brazil, in spite of no lung-cancer screening protocol, was associated with lung-cancer death rate along 10-year follow-up. We performed regressions to estimate the rate ratio between chest CT exams and lung-cancer deaths per 105 inhabitants. We stratified data per municipality. Regressions were adjusted for physicians and hospital beds per 105 inhabitants and per capita gross domestic product. Increasing availability of chest CT exams predicted decreasing lung-cancer death rate.
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