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

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
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