Ultra-low dose contrast CT pulmonary angiography in oncology patients using a high-pitch helical dual-source technology.

08:00 EDT 7th May 2019 | BioPortfolio

Summary of "Ultra-low dose contrast CT pulmonary angiography in oncology patients using a high-pitch helical dual-source technology."

We aimed to determine if the image quality and vascular enhancement are preserved in computed tomography pulmonary angiography (CTPA) studies performed with ultra-low contrast and optimized radiation dose using high-pitch helical mode of a second generation dual source scanner.


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This article was published in the following journal.

Name: Diagnostic and interventional radiology (Ankara, Turkey)
ISSN: 1305-3612


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Medical and Biotech [MESH] Definitions

Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.

Radiography of blood vessels after injection of a contrast medium.

Radiography of the vascular system of the brain after injection of a contrast medium.

Radiography of the vascular system of the heart muscle after injection of a contrast medium.

A method of delineating blood vessels by subtracting a tissue background image from an image of tissue plus intravascular contrast material that attenuates the X-ray photons. The background image is determined from a digitized image taken a few moments before injection of the contrast material. The resulting angiogram is a high-contrast image of the vessel. This subtraction technique allows extraction of a high-intensity signal from the superimposed background information. The image is thus the result of the differential absorption of X-rays by different tissues.

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