Journal article

Ultralow dose CT for follow-up of solid pulmonary nodules A pilot single-center study using Bland-Altman analysis

Michael Paks, Paul Leong, Paul Einsiedel, Louis B Irving, Daniel P Steinfort, Diane M Pascoe

Medicine | LIPPINCOTT WILLIAMS & WILKINS | Published : 2018


Solid pulmonary nodules are a common finding requiring serial computed tomography (CT) imaging. We sought to explore the detection and measurement accuracy of an ultralow-dose CT (ULDCT) protocol compared with our standard low-dose CT (LDCT) nodule follow-up protocol.In this pragmatic single-center pilot prospective cohort study, patients scheduled for clinically indicated CT surveillance of 1 or more known solid pulmonary nodules >2 mm underwent ULDCT immediately after routine LDCT. The Bland-Altman 95% limits of agreement for diameter and volumetry were calculated.In all, 57 patients underwent 60 imaging episodes, with 170 evaluable nodules. ULDCT detected all known solid pulmonary nodules..

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