Universität zu Köln

Goertz, Lukas ORCID: 0000-0002-2620-7611, Al-Sewaidi, Yosef, Habib, Mahmoud, Zopfs, David ORCID: 0000-0001-9978-7453, Reichardt, Benjamin, Ranft, Alexander and Kabbasch, Christoph ORCID: 0000-0003-3712-2258 (2024). State-of-the-art mobile head CT scanner delivers nearly the same image quality as a conventional stationary CT scanner. Scientific Reports, 14 (1). pp. 1-9. Springer Nature. ISSN 2045-2322

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Abstract

[Artikel-Nr.: 6393] The use of mobile head CT scanners in the neurointensive care unit (NICU) saves time for patients and NICU staff and can reduce transport‑related mishaps, but the reduced image quality of previous mobile scanners has prevented their widespread clinical use. This study compares the image quality of SOMATOM On.Site (Siemens Healthineers, Erlangen, Germany), a state‑of‑the‑art mobile head CT scanner, and a conventional 64‑slice stationary CT scanner. The study included 40 patients who underwent head scans with both mobile and stationary scanners. Gray and white matter signal and noise were measured at predefined locations on axial slices, and signal‑to‑noise ratios (SNRs) and contrast‑to‑noise ratios (CNRs) were calculated. Artifacts below the cranial calvaria and in the posterior fossa were also measured. In addition, image quality was subjectively assessed by two radiologists in terms of corticomedullary differentiation, subcalvarial space, skull artifacts, and image noise. Quantitative measurements showed significantly higher image quality of the stationary CT scanner in terms of noise, SNR and CNR of gray and white matter. Artifacts measured in the posterior fossa were higher with the mobile CT scanner, but subcalvarial artifacts were comparable. Subjective image quality was rated similarly by two radiologists for both scanners in all domains except image noise, which was better for stationary CT scans. The image quality of the SOMATOM On.Site for brain scans is inferior to that of the conventional stationary scanner, but appears to be adequate for daily use in a clinical setting based on subjective ratings.

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Goertz, Lukas UNSPECIFIED https://orcid.org/0000-0002-2620-7611 UNSPECIFIED Al-Sewaidi, Yosef UNSPECIFIED UNSPECIFIED UNSPECIFIED Habib, Mahmoud UNSPECIFIED UNSPECIFIED UNSPECIFIED Zopfs, David UNSPECIFIED https://orcid.org/0000-0001-9978-7453 UNSPECIFIED Reichardt, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED Ranft, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Kabbasch, Christoph UNSPECIFIED https://orcid.org/0000-0003-3712-2258 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-815270
Identification Number:	10.1038/s41598-024-56089-z
Journal or Publication Title:	Scientific Reports
Volume:	14
Number:	1
Page Range:	pp. 1-9
Number of Pages:	9
Date:	16 March 2024
Publisher:	Springer Nature
ISSN:	2045-2322
Language:	English
Faculty:	Faculty of Medicine
Divisions:	Faculty of Medicine > Radiologische Diagnostik > Institut und Poliklinik für Radiologische Diagnostik
Subjects:	Medical sciences Medicine
Uncontrolled Keywords:	Keywords Language Computed tomography ; ICU ; Intracranial haemorrhage ; Mobile CT English
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/81527