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Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience

PURPOSE: To evaluate vessel assessment in virtual monoenergetic images (VMI(40keV)) and virtual-non-contrast images (VNC) derived from venous phase spectral detector computed tomography (SDCT) acquisitions in comparison to arterial phase and true non-contrast (TNC) images. METHODS: Triphasic abdomin...

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Autores principales: Lennartz, Simon, Laukamp, Kai Roman, Tandon, Yasmeen, Jordan, Michelle, Große Hokamp, Nils, Zopfs, David, Pennig, Lenhard, Obmann, Markus, Gilkeson, Robert C., Herrmann, Karin A., Ramaiya, Nikhil, Gupta, Amit
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2021
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8215039/
https://www.ncbi.nlm.nih.gov/pubmed/33715050
http://dx.doi.org/10.1007/s00261-021-03001-2
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author Lennartz, Simon
Laukamp, Kai Roman
Tandon, Yasmeen
Jordan, Michelle
Große Hokamp, Nils
Zopfs, David
Pennig, Lenhard
Obmann, Markus
Gilkeson, Robert C.
Herrmann, Karin A.
Ramaiya, Nikhil
Gupta, Amit
author_facet Lennartz, Simon
Laukamp, Kai Roman
Tandon, Yasmeen
Jordan, Michelle
Große Hokamp, Nils
Zopfs, David
Pennig, Lenhard
Obmann, Markus
Gilkeson, Robert C.
Herrmann, Karin A.
Ramaiya, Nikhil
Gupta, Amit
author_sort Lennartz, Simon
collection PubMed
description PURPOSE: To evaluate vessel assessment in virtual monoenergetic images (VMI(40keV)) and virtual-non-contrast images (VNC) derived from venous phase spectral detector computed tomography (SDCT) acquisitions in comparison to arterial phase and true non-contrast (TNC) images. METHODS: Triphasic abdominal SDCT was performed in 25 patients including TNC, arterial and venous phase. VMI(40keV) and VNC were reconstructed from the venous phase and compared to conventional arterial-phase images (CI(art)), TNC and conventional venous-phase images (CI(ven)). Vessel contrast and virtual contrast removal were analyzed with region-of-interest-based measurements and in a qualitative assessment. RESULTS: Quantitative analysis revealed no significant attenuation differences between TNC and VNC in arterial vessels (p-range 0.07–0.47) except for the renal artery (p = 0.011). For venous vessels, significant differences between TNC and VNC were found for all veins (p < 0.001) except the inferior vena cava (p = 0.26), yet these differences remained within a 10 HU range in most patients. No significant attenuation differences were found between CI(art)/VMI(40keV) in arterial vessels (p-range 0.06–0.86). Contrast-to-noise ratio provided by VMI(40keV) and CI(art) was equivalent for all arterial vessels assessed (p-range 0.14–0.91). Qualitatively, VMI(40keV) showed similar enhancement of abdominal and pelvic arteries as CI(art) and VNC were rated comparable to TNC. CONCLUSION: Our study suggests that VNC and VMI(40keV) derived from single venous-phase SDCT offer comparable assessment of major abdominal vessels as provided by routine triphasic examinations, if no dynamic contrast information is required.
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spelling pubmed-82150392021-07-01 Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience Lennartz, Simon Laukamp, Kai Roman Tandon, Yasmeen Jordan, Michelle Große Hokamp, Nils Zopfs, David Pennig, Lenhard Obmann, Markus Gilkeson, Robert C. Herrmann, Karin A. Ramaiya, Nikhil Gupta, Amit Abdom Radiol (NY) Technical PURPOSE: To evaluate vessel assessment in virtual monoenergetic images (VMI(40keV)) and virtual-non-contrast images (VNC) derived from venous phase spectral detector computed tomography (SDCT) acquisitions in comparison to arterial phase and true non-contrast (TNC) images. METHODS: Triphasic abdominal SDCT was performed in 25 patients including TNC, arterial and venous phase. VMI(40keV) and VNC were reconstructed from the venous phase and compared to conventional arterial-phase images (CI(art)), TNC and conventional venous-phase images (CI(ven)). Vessel contrast and virtual contrast removal were analyzed with region-of-interest-based measurements and in a qualitative assessment. RESULTS: Quantitative analysis revealed no significant attenuation differences between TNC and VNC in arterial vessels (p-range 0.07–0.47) except for the renal artery (p = 0.011). For venous vessels, significant differences between TNC and VNC were found for all veins (p < 0.001) except the inferior vena cava (p = 0.26), yet these differences remained within a 10 HU range in most patients. No significant attenuation differences were found between CI(art)/VMI(40keV) in arterial vessels (p-range 0.06–0.86). Contrast-to-noise ratio provided by VMI(40keV) and CI(art) was equivalent for all arterial vessels assessed (p-range 0.14–0.91). Qualitatively, VMI(40keV) showed similar enhancement of abdominal and pelvic arteries as CI(art) and VNC were rated comparable to TNC. CONCLUSION: Our study suggests that VNC and VMI(40keV) derived from single venous-phase SDCT offer comparable assessment of major abdominal vessels as provided by routine triphasic examinations, if no dynamic contrast information is required. Springer US 2021-03-14 2021 /pmc/articles/PMC8215039/ /pubmed/33715050 http://dx.doi.org/10.1007/s00261-021-03001-2 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Technical
Lennartz, Simon
Laukamp, Kai Roman
Tandon, Yasmeen
Jordan, Michelle
Große Hokamp, Nils
Zopfs, David
Pennig, Lenhard
Obmann, Markus
Gilkeson, Robert C.
Herrmann, Karin A.
Ramaiya, Nikhil
Gupta, Amit
Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience
title Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience
title_full Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience
title_fullStr Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience
title_full_unstemmed Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience
title_short Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience
title_sort abdominal vessel depiction on virtual triphasic spectral detector ct: initial clinical experience
topic Technical
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8215039/
https://www.ncbi.nlm.nih.gov/pubmed/33715050
http://dx.doi.org/10.1007/s00261-021-03001-2
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