Imaging Findings of Peripheral Arterial Disease on Lower-Extremity CT Angiography Using a Virtual Monoenergetic Imaging Algorithm

Autor: Jun Seong Kim, So Hyun Park, Suyoung Park, Jung Han Hwang, Jeong Ho Kim, Seong Yong Park, Kihyun Lee, Bernhard Schmidt
Jazyk: English<br />Korean
Rok vydání: 2022
Předmět:
Zdroj: 대한영상의학회지, Vol 83, Iss 5, Pp 1032-1045 (2022)
Druh dokumentu: article
ISSN: 2288-2928
DOI: 10.3348/jksr.2021.0191
Popis: Peripheral arterial disease (PAD) is common in elderly patients. Lower-extremity CT angiography (LE-CTA) can be useful for detecting PAD and planning its treatment. PAD can also be accurately evaluated on reconstructed monoenergetic images (MEIs) from low kiloelectron volt (keV) to high keV images using dualenergy CT. Low keV images generally provide higher contrast than high keV images but also feature more severe image noise. The noise-reduced virtual MEI reconstruction algorithm, called the Mono+ technique, was recently introduced to overcome such image noise. Therefore, this pictorial review aimed to present the imaging findings of PAD on LE-CTA and compare low and high keV images with those subjected to the Mono+ technique. We found that, in many cases, the overall and segmental image qualities were better and metal artifacts and venous contamination were decreased in the high keV images.
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