Prognostic Value of Reflux of Contrast into the Inferior Vena Cava and Hepatic Veins on CT Pulmonary Angiography in Patients of Pulmonary Embolism

Raza, Farheen and Arif, Adnan and Raza, Muhammad Ali and Yasin, Fawad and Asghar, Maryam and Ziad, Alishbah (2022) Prognostic Value of Reflux of Contrast into the Inferior Vena Cava and Hepatic Veins on CT Pulmonary Angiography in Patients of Pulmonary Embolism. Journal of Global Radiology, 8 (1). ISSN 23728418

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Abstract

A pulmonary embolism (PE) that obstructs pulmonary arterial blood flow is a medical emergency. Its early detection and appropriate management can be lifesaving. CT pulmonary angiography (CTPA) is currently in use as a standard tool for diagnosis of PE. This study was performed to determine the prognostic accuracy of contrast reflux into the inferior vena cava (IVC) and hepatic veins on CTPA in patients suffering from acute PE.

Materials and Methods

The study was composed of 285 patients between 15 to 85 years of age that had filling defects in pulmonary arteries on CTPA that were consistent with those of a pulmonary embolism. The extent of contrast reflux into the IVC and hepatic veins was determined on the basis of a Groves scale. The patients were followed for a period of 30 days.

Results

Of 285 total patients, 200 (70.17%) survived the post PE period of 30 days and were labeled as survivors. The other 85 (29.83%) patients did not survive the 30-day duration and were called non-survivors. The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of IVC contrast reflux grading were 65.8%, 90%, 73.68%, 86.12 % and 82.8 % respectively.

Conclusion

We conclude that IVC contrast reflux grading assessed on helical CT is a beneficial tool for predicting prognosis in cases of acute PE.

Item Type: Article
Subjects: Research Asian Plos > Medical Science
Depositing User: Unnamed user with email support@research.asianplos.com
Date Deposited: 28 Jan 2023 09:52
Last Modified: 30 Oct 2024 07:19
URI: http://abstract.stmdigitallibrary.com/id/eprint/66

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