Clinical Value of Thin Collimation in the Diagnostic Workup of Pulmonary Embolism
Authors:
- Jacques RemyJRJacques Remy
- Froohar BaghaieFBFroohar Baghaie
- Marc FribourgMFMarc Fribourg
- Dominique ArtaudDADominique Artaud
- Alain DuhamelADAlain Duhamel
- 1 August 2000
- journal article
- clinical trial
- Published by American Roentgen Ray Society in American Journal of Roentgenology
- Vol. 175 (2) , 407-411
Abstract
OBJECTIVE. We report our experience with thin-collimation helical CT in a population of patients suspected of having pulmonary embolism.CONCLUSION. Thin-collimation helical CT provided technically acceptable examinations for pulmonary embolism in 360 patients (97%). In this population, CT revealed pulmonary embolism in 104 patients (29%), negative findings in 217 patients (59%), indeterminate findings in 39 patients (10%), and alternative diagnoses in 65% of patients with negative or inconclusive findings. Ventilation-perfusion scanning and Doppler sonography of the lower extremities were performed in 158 (44%) and 133 patients (37%), respectively, whereas pulmonary angiography was performed in 27 patients (7.5%). The estimated false-negative rate of helical CT was 5%.Keywords
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