J 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

Článek v odborném periodiku

Field of Study

30210 Clinical neurology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.379

RIV identification code

RIV/00216224:14110/20:00116731

Organization unit

Faculty of Medicine

UT WoS

000585841900010

Keywords in English

HARDI-ZOOMit protocol; presymptomatic myelopathy

Tags

International impact, Reviewed
Změněno: 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
Name: e-Infrastruktura CZ (Acronym: e-INFRA CZ)
Investor: Ministry of Education, Youth and Sports of the CR
NV18-04-00159, research and development project
Name: Využití pokročilých magneticko-rezonančních technik k odhalení patofyziologie a zlepšení diagnostiky a praktického managementu degenerativní komprese krční míchy
Investor: Ministry of Health of the CR
90062, large research infrastructures
Name: Czech-BioImaging
90129, large research infrastructures
Name: Czech-BioImaging II