Comparison of multicenter MRI protocols for visualizing the spinal cord gray matter
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00098892%3A_____%2F22%3A10157273" target="_blank" >RIV/00098892:_____/22:10157273 - isvavai.cz</a>
Alternative codes found
RIV/65269705:_____/22:00076137 RIV/00216224:14740/22:00127895
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/mrm.29249" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/mrm.29249</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/mrm.29249" target="_blank" >10.1002/mrm.29249</a>
Alternative languages
Result language
angličtina
Original language name
Comparison of multicenter MRI protocols for visualizing the spinal cord gray matter
Original language description
Purpose: Spinal cord gray-matter imaging is valuable for a number of applications, but remains challenging. The purpose of this work was to compare various MRI protocols at 1.5 T, 3 T, and 7 T for visualizing the gray matter. Methods: In vivo data of the cervical spinal cord were collected from nine different imaging centers. Data processing consisted of automatically segmenting the spinal cord and its gray matter and co-registering back-to-back scans. We computed the SNR using two methods (SNR_single using a single scan and SNR_diff using the difference between back-to-back scans) and the white/gray matter contrast-to-noise ratio per unit time. Synthetic phantom data were generated to evaluate the metrics performance. Experienced radiologists qualitativelyscored the images. We ran the same processing on an open-access multicenter data set of the spinal cord MRI (N = 267 participants). Results: Qualitative assessments indicated comparable image quality for 3T and 7T scans. Spatial resolution was higher at higher field strength, and image quality at 1.5 T was found to be moderate to low. The proposed quantitative metrics were found to be robust to underlying changes to the SNR and contrast; however, the SNR_single method lacked accuracy when there were excessive partial-volume effects. Conclusion: We propose quality assessment criteria and metrics for gray-matter visualization and apply them to different protocols. The proposed criteria and metrics, the analyzed protocols, and our open-source code can serve as a benchmark for future optimization of spinal cord gray-matter imaging protocols.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20601 - Medical engineering
Result continuities
Project
<a href="/en/project/NV18-04-00159" target="_blank" >NV18-04-00159: Advanced magnetic resonance techniques to disclose pathophysiology and improve diagnosis and clinical management of degenerative cervical cord compression</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Magnetic Resonance in Medicine
ISSN
0740-3194
e-ISSN
1522-2594
Volume of the periodical
88
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
849-859
UT code for WoS article
000788389000001
EID of the result in the Scopus database
2-s2.0-85129196754