2020
HARDI-ZOOMit protocol improves specificity to microstructural changes in presymptomatic myelopathy
LABOUNEK, René; Jan VALOŠEK; Tomáš HORÁK; Alena SVÁTKOVÁ; Petr BEDNAŘÍK et. al.Basic information
Original name
HARDI-ZOOMit protocol improves specificity to microstructural changes in presymptomatic myelopathy
Authors
LABOUNEK, René (203 Czech Republic); Jan VALOŠEK (203 Czech Republic); Tomáš HORÁK (203 Czech Republic, belonging to the institution); Alena SVÁTKOVÁ (703 Slovakia, belonging to the institution); Petr BEDNAŘÍK (203 Czech Republic, belonging to the institution); Lubomír VOJTÍŠEK (203 Czech Republic, belonging to the institution); Magda HORÁKOVÁ (203 Czech Republic, belonging to the institution); Igor NESTRAŠIL (203 Czech Republic); Christophe LENGLET (250 France); Julien COHEN-ADAD (124 Canada); Josef BEDNAŘÍK (203 Czech Republic, belonging to the institution) and Petr HLUŠTÍK (203 Czech Republic)
Edition
Scientific Reports, London, Nature Publishing Group, 2020, 2045-2322
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
30210 Clinical neurology
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 4.380
RIV identification code
RIV/00216224:14110/20:00116731
Organization unit
Faculty of Medicine
UT WoS
000585841900010
EID Scopus
2-s2.0-85080989889
Keywords in English
HARDI-ZOOMit protocol; presymptomatic myelopathy
Tags
International impact, Reviewed
Changed: 9/10/2024 11:49, Ing. Jana Kuchtová
Abstract
V originále
Diffusion magnetic resonance imaging (dMRI) proved promising in patients with non-myelopathic degenerative cervical cord compression (NMDCCC), i.e., without clinically manifested myelopathy. Aim of the study is to present a fast multi-shell HARDI-ZOOMit dMRI protocol and validate its usability to detect microstructural myelopathy in NMDCCC patients. In 7 young healthy volunteers, 13 age-comparable healthy controls, 18 patients with mild NMDCCC and 15 patients with severe NMDCCC, the protocol provided higher signal-to-noise ratio, enhanced visualization of white/gray matter structures in microstructural maps, improved dMRI metric reproducibility, preserved sensitivity (SE = 87.88%) and increased specificity (SP = 92.31%) of control-patient group differences when compared to DTI-RESOLVE protocol (SE = 87.88%, SP = 76.92%). Of the 56 tested microstructural parameters, HARDI-ZOOMit yielded significant patient-control differences in 19 parameters, whereas in DTI-RESOLVE data, differences were observed in 10 parameters, with mostly lower robustness. Novel marker the white-gray matter diffusivity gradient demonstrated the highest separation. HARDI-ZOOMit protocol detected larger number of crossing fibers (5–15% of voxels) with physiologically plausible orientations than DTI-RESOLVE protocol (0–8% of voxels). Crossings were detected in areas of dorsal horns and anterior white commissure. HARDI-ZOOMit protocol proved to be a sensitive and practical tool for clinical quantitative spinal cord imaging.
Links
LM2018140, research and development project |
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NV18-04-00159, research and development project |
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90062, large research infrastructures |
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90129, large research infrastructures |
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