The value of the computed tomographic obstruction index in the identification of massive pulmonary thromboembolism

Abstract

We found that in cases where the pulmonary arterial computed tomography obstruction index ratio was above 40%, a diagnosis of massive pulmonary thromboembolism was demonstrated. Furthermore, a positive correlation between the obstruction index and the Wells score suggested the use of a clinical evaluation as a means of developing a recommendation regarding the thrombotic load.