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Acta Biomedica Scientia

Volume 13, Issue 1, 2026
Mcmed International
Acta Biomedica Scientia
Issn
2348 - 215X (Print), 2348 - 2168 (Online)
Frequency
bi-annual
Email
editorabs@mcmed.us
Journal Home page
http://mcmed.us/journal/abs
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Abstract
Title
COMPARATIVE STUDY OF SPIRAL CT ANGIOGRAPHY AND CONVENTIONAL PULMONARY ANGIOGRAPHY IN DIAGNOSIS OF PULMONARY EMBOLISM
Author
Dr. Donepudi Rajeev
Email
keyword
Pulmonary embolism, Spiral CT scan, CT angiography, Imaging techniques, Vascular diagnosis.
Abstract
This study sought to assess the performance of spiral CT angiography in patients suspected of pulmonary embolism (PE) and to compare its diagnostic performance to that of the conventional pulmonary angiography. Twenty-five patients clinically suspected of having PE were studied by means of spiral CT angiography, extending the area between the level of the aortic arch and the diaphragm. A collimation of 5 mm and an interval of 5 mm were used in scanning at 130 mA and 120 kV. One hundred cc of contrast medium (300 mg I/ml of iodine concentration) was diluted with 60 cc of normal saline in a 5:3 dilution, and this was introduced at a flow rate of 3 ml/sec after a delay of 20 seconds of the scan. Retrospectively, image reconstruction was done in 3 mm intervals. Spiral CT angiography was found to have sensitivity and specificity of 80 percent and 85.7 percent respectively in diagnosing pulmonary embolism. It also offered good incidental findings on lung parenchyma and the mediastinal structures. CT angiography is both effective and accurate alternative to traditional pulmonary angiography in the diagnosis of suspected PE. It has potential to become a first-line imaging tool in assessment of pulmonary embolism due to its non-invasive character, economic costs, and diagnostic accuracy
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