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Abdominal Radiology

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24.08.2018 | Invited article

Role of dual energy CT to improve diagnosis of non-traumatic abdominal vascular emergencies

verfasst von: Khalid W. Shaqdan, Anushri Parakh, Avinash R. Kambadakone, Dushyant V. Sahani

Erschienen in: Abdominal Radiology | Ausgabe 2/2019

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Abstract

Computed tomography angiography (CTA) is the modality of choice to evaluate abdominal vascular emergencies (AVE). CTA protocols are often complex and require acquisition of multiple phases to enable a variety of diagnosis such as acute bleeding, pseudoaneurysms, bowel ischemia, and dissection. With single energy CT (SECT), differentiating between calcium, coagulated blood, and contrast agents can be challenging based on their attenuation, especially when in small quantity or present as a mixture. With dual-energy CT (DECT), virtual monoenergetic (VM) and material decomposition (MD) image reconstructions enable more robust tissue characterization, improve contrast-enhancement, and reduce beam hardening artifacts. This article will demonstrate how radiologists can utilize DECT for various clinical scenarios in assessment of non-traumatic AVE.

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Titel: Role of dual energy CT to improve diagnosis of non-traumatic abdominal vascular emergencies
verfasst von: Khalid W. Shaqdan
Anushri Parakh
Avinash R. Kambadakone
Dushyant V. Sahani
Publikationsdatum: 24.08.2018
Verlag: Springer US
Erschienen in: Abdominal Radiology / Ausgabe 2/2019
Print ISSN: 2366-004X
Elektronische ISSN: 2366-0058
DOI: https://doi.org/10.1007/s00261-018-1741-7

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Role of dual energy CT to improve diagnosis of non-traumatic abdominal vascular emergencies

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