2021
DOI: 10.1002/mrm.28777
|View full text |Cite
|
Sign up to set email alerts
|

Motion‐compensated 3D turbo spin‐echo for more robust MR intracranial vessel wall imaging

Abstract: Purpose:(1) To investigate the effect of internal localized movement on 3DMR intracranial vessel wall imaging and (2) to develop a novel motion-compensation approach combining volumetric navigator (vNav) and self-gating (SG) to simultaneously compensate for bulk and localized movements. Methods: A 3D variable-flip-angle turbo spin-echo (ie, SPACE) sequence was modified to incorporate vNav and SG modules. The SG signals from the center k-space line are acquired at the beginning of each TR to detect localized mo… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
5
0

Year Published

2021
2021
2024
2024

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 9 publications
(5 citation statements)
references
References 32 publications
0
5
0
Order By: Relevance
“…18,19 Acquiring images with high temporal and low spatial resolution can also be used for self-navigation. 16,20,21 Several reconstruction methods have been developed to correct or compensate for motion-induced artifacts using the detected respiratory signal. In a motion-resolved method, all acquired data were divided into different motion states and dynamic images werereconstructed using compressed sensing (CS) based on temporal correlation of image series.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…18,19 Acquiring images with high temporal and low spatial resolution can also be used for self-navigation. 16,20,21 Several reconstruction methods have been developed to correct or compensate for motion-induced artifacts using the detected respiratory signal. In a motion-resolved method, all acquired data were divided into different motion states and dynamic images werereconstructed using compressed sensing (CS) based on temporal correlation of image series.…”
Section: Introductionmentioning
confidence: 99%
“…In this strategy, self‐navigation signals can either be the central k‐space data 7,15,17 or be the navigator echo along the superior–inferior (SI) direction 18,19 . Acquiring images with high temporal and low spatial resolution can also be used for self‐navigation 16,20,21 …”
Section: Introductionmentioning
confidence: 99%
“…Motion was minimized by padding the subjects in the head coil and applying paper tape across the forehead skin for tactile feedback. Motion compensated 3D TSE-VFA sequences may provide a robust method for small vessel visualization and quantification (Hu et al, 2021). As a proof-of-concept study, we only included a small cohort of young and aged subjects, therefore no correction of multiple comparisons was performed for statistical analysis.…”
Section: Discussionmentioning
confidence: 99%
“…ABBREVIATIONS: CAIPI ¼ controlled aliasing in parallel imaging results in higher acceleration; DANTE ¼ delay alternating with nutation for tailored excitation; IVW ¼ intracranial vessel wall MR imaging; MSDE ¼ motion-sensitized driven-equilibrium; SPACE ¼ sampling perfection with application-optimized contrasts by using different flip angle evolution I ntracranial vessel wall MR imaging (IVW) has shown value in vasculopathy differentiation and characterization; 1-6 however, there is substantial technique and imaging parameter heterogeneity. 3,[6][7][8][9][10][11][12][13][14] There are a number of challenges that currently exist with IVW in terms of its application and implementation. One challenge is technique-related, specifically artifactual arterial and venous wall enhancement that can mimic pathology.…”
Section: Methodsmentioning
confidence: 99%