The Prognostic Significance of Pulmonary CT Angiography in Predicting the Outcomes of Acute Pulmonary Thromboembolism

نویسندگان
doi
10.5812/iranjradiol-121728
چکیده

Background: Pulmonary embolism (PE) is a potentially fatal condition. Knowledge of the prognostic factors for PE may facilitate the management of these patients. Pulmonary computed tomography (CT) angiography (PCTA) can play an effective role in their management. Objectives: To evaluate the prognostic value of certain PCTA-derived indicators of right ventricular dysfunction in patients with acute PE. Results: The 60-day mortality was estimated at 14.8% in this study. An abnormal interventricular septum morphology, RVD/LVD ratio, and contrast medium reflux into the IVC were significantly correlated with the Qanadli index. The pulmonary trunk diameter was the only predictor of 60-day mortality (optimal cutoff value, 33.5 mm; sensitivity, 66.7%; and specificity, 65.4%). The bolus-time curve indicators did not have any significant predictive value. Conclusion: Some PCTA-derived indicators of right ventricular dysfunction may serve as severity/prognostic predictors in hemodynamically stable patients with acute PE.