Highly accelerated, real-time phase-contrast MRI using radial k-space sampling and GROG-GRASP reconstruction: a feasibility study in pediatric patients with congenital heart disease.
compressed sensing
congenital heart disease
pediatrics
phase contrast
real time
Journal
NMR in biomedicine
ISSN: 1099-1492
Titre abrégé: NMR Biomed
Pays: England
ID NLM: 8915233
Informations de publication
Date de publication:
05 2020
05 2020
Historique:
received:
13
08
2019
revised:
04
11
2019
accepted:
19
11
2019
pubmed:
25
1
2020
medline:
3
6
2021
entrez:
25
1
2020
Statut:
ppublish
Résumé
Retrospective electrocardiogram-gated, 2D phase-contrast (PC) flow MRI is routinely used in clinical evaluation of valvular/vascular disease in pediatric patients with congenital heart disease (CHD). In patients not requiring general anesthesia, clinical standard PC is conducted with free breathing for several minutes per slice with averaging. In younger patients under general anesthesia, clinical standard PC is conducted with breath-holding. One approach to overcome this limitation is using either navigator gating or self-navigation of respiratory motion, at the expense of lengthening scan times. An alternative approach is using highly accelerated, free-breathing, real-time PC (rt-PC) MRI, which to date has not been evaluated in CHD patients. The purpose of this study was to develop a 38.4-fold accelerated 2D rt-PC pulse sequence using radial k-space sampling and compressed sensing with 1.5 × 1.5 × 6.0 mm
Identifiants
pubmed: 31977117
doi: 10.1002/nbm.4240
pmc: PMC7165070
mid: NIHMS1570311
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e4240Subventions
Organisme : NIA NIH HHS
ID : R21 AG055954
Pays : United States
Organisme : NHLBI NIH HHS
ID : F30 HL137279
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR001422
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL138578
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL116895
Pays : United States
Organisme : NIBIB NIH HHS
ID : R21 EB024315
Pays : United States
Informations de copyright
© 2020 John Wiley & Sons, Ltd.
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