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Comparison of image quality between a novel mobile CT scanner and current generation stationary CT scanners

Andersson, Henrik LU orcid ; Tamaddon, Ashkan LU ; Malekian, Mazdak ; Ydström, Kristina LU ; Siemund, Roger LU ; Ullberg, Teresa LU and Wasselius, Johan LU (2023) In Neuroradiology 65(3). p.503-512
Abstract

Purpose: Point-of-care imaging with mobile CT scanners offers several advantages, provided that the image quality is satisfactory. Our aim was to compare image quality of a novel mobile CT to stationary scanners for patients in a neurosurgical intensive care unit (ICU). Methods: From November 2020 to April 2021, all patients above 18 years of age examined by a mobile CT scanner at a neurosurgical ICU were included if they also had a stationary head CT examination during the same hospitalization. Quantitative image quality parameters included attenuation and noise in six predefined regions of interest, as well as contrast-to-noise ratio between gray and white matter. Subjective image quality was rated on a 4-garde scale, by four... (More)

Purpose: Point-of-care imaging with mobile CT scanners offers several advantages, provided that the image quality is satisfactory. Our aim was to compare image quality of a novel mobile CT to stationary scanners for patients in a neurosurgical intensive care unit (ICU). Methods: From November 2020 to April 2021, all patients above 18 years of age examined by a mobile CT scanner at a neurosurgical ICU were included if they also had a stationary head CT examination during the same hospitalization. Quantitative image quality parameters included attenuation and noise in six predefined regions of interest, as well as contrast-to-noise ratio between gray and white matter. Subjective image quality was rated on a 4-garde scale, by four radiologists blinded to scanner parameters. Results: Fifty patients were included in the final study population. Radiation dose and image attenuation values were similar for mobCT and stationary CTs. There was a small statistically significant difference in subjective quality rating between mobCT and stationary CT images. Two radiologists favored the stationary CT images, one was neutral, and one favored mobCT images. For overall image quality, 14% of mobCT images were rated grade 1 (poor image quality) compared to 8% for stationary CT images. Conclusion: Point-of-care brain CT imaging was successfully performed on clinical neurosurgical ICU patients with small reduction in image quality, predominantly affecting the posterior fossa, compared to high-end stationary CT scanners.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Brain CT, Head CT, Image quality analysis, Mobile CT scanner, Point-of-care imaging
in
Neuroradiology
volume
65
issue
3
pages
503 - 512
publisher
Springer
external identifiers
  • pmid:36441234
  • scopus:85142869312
ISSN
0028-3940
DOI
10.1007/s00234-022-03089-3
project
Application of novel CT technology in neuroradiology
language
English
LU publication?
yes
id
7b909cdb-58fb-4d0a-b3a0-00a3620aaaaa
date added to LUP
2023-01-31 13:45:44
date last changed
2024-04-15 19:26:05
@article{7b909cdb-58fb-4d0a-b3a0-00a3620aaaaa,
  abstract     = {{<p>Purpose: Point-of-care imaging with mobile CT scanners offers several advantages, provided that the image quality is satisfactory. Our aim was to compare image quality of a novel mobile CT to stationary scanners for patients in a neurosurgical intensive care unit (ICU). Methods: From November 2020 to April 2021, all patients above 18 years of age examined by a mobile CT scanner at a neurosurgical ICU were included if they also had a stationary head CT examination during the same hospitalization. Quantitative image quality parameters included attenuation and noise in six predefined regions of interest, as well as contrast-to-noise ratio between gray and white matter. Subjective image quality was rated on a 4-garde scale, by four radiologists blinded to scanner parameters. Results: Fifty patients were included in the final study population. Radiation dose and image attenuation values were similar for mobCT and stationary CTs. There was a small statistically significant difference in subjective quality rating between mobCT and stationary CT images. Two radiologists favored the stationary CT images, one was neutral, and one favored mobCT images. For overall image quality, 14% of mobCT images were rated grade 1 (poor image quality) compared to 8% for stationary CT images. Conclusion: Point-of-care brain CT imaging was successfully performed on clinical neurosurgical ICU patients with small reduction in image quality, predominantly affecting the posterior fossa, compared to high-end stationary CT scanners.</p>}},
  author       = {{Andersson, Henrik and Tamaddon, Ashkan and Malekian, Mazdak and Ydström, Kristina and Siemund, Roger and Ullberg, Teresa and Wasselius, Johan}},
  issn         = {{0028-3940}},
  keywords     = {{Brain CT; Head CT; Image quality analysis; Mobile CT scanner; Point-of-care imaging}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{503--512}},
  publisher    = {{Springer}},
  series       = {{Neuroradiology}},
  title        = {{Comparison of image quality between a novel mobile CT scanner and current generation stationary CT scanners}},
  url          = {{http://dx.doi.org/10.1007/s00234-022-03089-3}},
  doi          = {{10.1007/s00234-022-03089-3}},
  volume       = {{65}},
  year         = {{2023}},
}