Pulmonary embolism: Low dose contrast MSCT pulmonary angiography with modified test bolus technique

Autor: Wael Hamza Kamr, Amir Monier El-Tantawy, Mohamed M. Harraz, Ahmed Ibrahim Tawfik
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: European Journal of Radiology Open, Vol 7, Iss , Pp 100254- (2020)
Druh dokumentu: article
ISSN: 2352-0477
DOI: 10.1016/j.ejro.2020.100254
Popis: Purpose: This study aims to prove that the test bolus technique provides a better selective imaging study of the pulmonary arterial system in comparison to the automatic bolus-tracking technique. Method: A prospective study included 600 patients, classified into 2 groups where each group consisted of 300 patients. In group A, we used the bolus tracking technique with 80−100 ml of contrast while in group B test bolus technique was used with 50 mL of contrast. Results: It was clear that the Main PA average density was 260.5 HU in group A and increased to 320 HU in group B with P value < 0.002. The Ascending aorta average density decreased from 250 HU in group A to 130 HU in group B with P value
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