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Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT

In this article, we aim to highlight the utility of dual-energy computed tomography (DECT) in demonstrating imaging changes due to hypoxic pulmonary vasoconstriction (HPV). DECT allows detailed image reconstructions that have been shown to better characterize cardiothoracic pathologies, as compared...

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Autores principales: Hunter, Joshua G, Prajapati, Priyanka, Bera, Kaustav, Gupta, Aekta, Gupta, Amit
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10123221/
https://www.ncbi.nlm.nih.gov/pubmed/37102002
http://dx.doi.org/10.7759/cureus.36551
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author Hunter, Joshua G
Prajapati, Priyanka
Bera, Kaustav
Gupta, Aekta
Gupta, Amit
author_facet Hunter, Joshua G
Prajapati, Priyanka
Bera, Kaustav
Gupta, Aekta
Gupta, Amit
author_sort Hunter, Joshua G
collection PubMed
description In this article, we aim to highlight the utility of dual-energy computed tomography (DECT) in demonstrating imaging changes due to hypoxic pulmonary vasoconstriction (HPV). DECT allows detailed image reconstructions that have been shown to better characterize cardiothoracic pathologies, as compared to conventional CT techniques. DECT simultaneously detects two different X-ray energies, which enables generation of iodine density maps, virtual monoenergetic images, and effective atomic number maps (Z(eff)), among others. DECT has been shown to have utility in the assessment of benign versus malignant pulmonary nodules, pulmonary embolism, myocardial perfusion defects, and other conditions. Herein, we describe four cases of indeterminate pulmonary pathology when imaged with conventional CT in which subsequent use of DECT-derived image reconstructions demonstrated HPV as the underlying pathophysiological mechanism. The goal of this article is to understand the imaging appearance of HPV on DECT and discuss how HPV may mimic other causes of perfusion defects.
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spelling pubmed-101232212023-04-25 Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT Hunter, Joshua G Prajapati, Priyanka Bera, Kaustav Gupta, Aekta Gupta, Amit Cureus Radiology In this article, we aim to highlight the utility of dual-energy computed tomography (DECT) in demonstrating imaging changes due to hypoxic pulmonary vasoconstriction (HPV). DECT allows detailed image reconstructions that have been shown to better characterize cardiothoracic pathologies, as compared to conventional CT techniques. DECT simultaneously detects two different X-ray energies, which enables generation of iodine density maps, virtual monoenergetic images, and effective atomic number maps (Z(eff)), among others. DECT has been shown to have utility in the assessment of benign versus malignant pulmonary nodules, pulmonary embolism, myocardial perfusion defects, and other conditions. Herein, we describe four cases of indeterminate pulmonary pathology when imaged with conventional CT in which subsequent use of DECT-derived image reconstructions demonstrated HPV as the underlying pathophysiological mechanism. The goal of this article is to understand the imaging appearance of HPV on DECT and discuss how HPV may mimic other causes of perfusion defects. Cureus 2023-03-22 /pmc/articles/PMC10123221/ /pubmed/37102002 http://dx.doi.org/10.7759/cureus.36551 Text en Copyright © 2023, Hunter et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Radiology
Hunter, Joshua G
Prajapati, Priyanka
Bera, Kaustav
Gupta, Aekta
Gupta, Amit
Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT
title Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT
title_full Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT
title_fullStr Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT
title_full_unstemmed Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT
title_short Imaging Depiction of Hypoxic Pulmonary Vasoconstriction Using Dual-Energy CT
title_sort imaging depiction of hypoxic pulmonary vasoconstriction using dual-energy ct
topic Radiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10123221/
https://www.ncbi.nlm.nih.gov/pubmed/37102002
http://dx.doi.org/10.7759/cureus.36551
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