The Usefulness of the Posterior Oblique Views in Perfusion Lung Imaging

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Abstract
A total of 116 perfusion lung images, with and without posterior oblique views, were compared by 4 trained observers. There was a significant increase in the number of perfusion defects detected when the posterior oblique views were included. Pairs of projections of 89 lung images were read by the 4 observers. The percentage of correct readings for the posterior oblique views was 78% compared with 63% and 56% for the lateral views and AP [anterior posterior] views, respectively. Inclusion of the posterior oblique views as a routine part of the examination is recommended.

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