Universität zu Köln

Lennartz, Simon, Laukamp, Kai Roman, Tandon, Yasmeen, Jordan, Michelle, Grosse Hokamp, Nils, Zopfs, David, Pennig, Lenhard, Obmann, Markus ORCID: 0000-0001-6586-0034, Gilkeson, Robert C., Herrmann, Karin A., Ramaiya, Nikhil and Gupta, Amit ORCID: 0000-0001-5345-6763 (2021). Abdominal vessel depiction on virtual triphasic spectral detector CT: initial clinical experience. Abdom. Radiol., 46 (7). S. 3501 - 3512. NEW YORK: SPRINGER. ISSN 2366-0058

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Abstract

Purpose To evaluate vessel assessment in virtual monoenergetic images (VMI40keV) 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. VMI40keV and VNC were reconstructed from the venous phase and compared to conventional arterial-phase images (CIart), TNC and conventional venous-phase images (CIven). 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 CIart/VMI40keV in arterial vessels (p-range 0.06-0.86). Contrast-to-noise ratio provided by VMI40keV and CIart was equivalent for all arterial vessels assessed (p-range 0.14-0.91). Qualitatively, VMI40keV showed similar enhancement of abdominal and pelvic arteries as CIart and VNC were rated comparable to TNC. Conclusion Our study suggests that VNC and VMI40keV 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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lennartz, Simon UNSPECIFIED UNSPECIFIED UNSPECIFIED Laukamp, Kai Roman UNSPECIFIED UNSPECIFIED UNSPECIFIED Tandon, Yasmeen UNSPECIFIED UNSPECIFIED UNSPECIFIED Jordan, Michelle UNSPECIFIED UNSPECIFIED UNSPECIFIED Grosse Hokamp, Nils UNSPECIFIED UNSPECIFIED UNSPECIFIED Zopfs, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Pennig, Lenhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Obmann, Markus UNSPECIFIED orcid.org/0000-0001-6586-0034 UNSPECIFIED Gilkeson, Robert C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Herrmann, Karin A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ramaiya, Nikhil UNSPECIFIED UNSPECIFIED UNSPECIFIED Gupta, Amit UNSPECIFIED orcid.org/0000-0001-5345-6763 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-596623
DOI:	10.1007/s00261-021-03001-2
Journal or Publication Title:	Abdom. Radiol.
Volume:	46
Number:	7
Page Range:	S. 3501 - 3512
Date:	2021
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	2366-0058
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Radiology, Nuclear Medicine & Medical Imaging Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59662