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Magnetic resonance angiography with compressed sensing: An evaluation of moyamoya disease
- Source :
- PLoS ONE, PLoS ONE, Vol 13, Iss 1, p e0189493 (2018)
- Publication Year :
- 2018
- Publisher :
- Public Library of Science, 2018.
-
Abstract
- Compressed sensing (CS) reconstructions of under-sampled measurements generate missing data based on assumptions of image sparsity. Non-contrast time-of-flight MR angiography (TOF-MRA) is a good candidate for CS based acceleration, as MRA images feature bright trees of sparse vessels over a well-suppressed anatomical background signal. A short scan time derived from CS is beneficial for patients of moyamoya disease (MMD) because of the frequency of MR scans. The purpose of this study was to investigate the reliability of TOF-MRA with CS in the evaluation of MMD. Twenty-two patients were examined using TOF-MRA with CS (CS-TOF) and parallel imaging (PI-TOF). The acceleration factors were 3 (CS3) and 5 (CS5) for CS-TOF, and 3 (PI3) for PI-TOF. Two neuroradiologists evaluated the MMD grading according to stenosis/occlusion scores using the modified Houkin’s system, and the visibility of moyamoya vessels (MMVs) using a 3-point scale. Concordance was calculated with Cohen’s κ. The numbers of MMVs in the basal ganglia were compared using Bland-Altman analysis and Wilcoxon’s signed-rank tests. MRA scan times were 4:07, 3:53, and 2:42 for PI3, CS3, and CS5, respectively. CS-reconstruction completed within 10 minutes. MMD grading and MMV visibility scales showed excellent correlation (κ > .966). Although the number of MMVs was significantly higher in CS3 than in PI3 (p < .0001) and CS5 (p < .0001), Bland-Altman analysis showed a good agreement between PI3, CS3, and CS5. Compressed sensing can accelerate TOF-MRA with improved visualization of small collaterals in equivalent time (CS3) or equivalent results in a shorter scan time (CS5).
- Subjects :
- Male
Wilcoxon signed-rank test
Cardiovascular Procedures
lcsh:Medicine
Vascular Surgery
Cardiovascular Medicine
Pathology and Laboratory Medicine
Magnetic resonance angiography
Basal Ganglia
030218 nuclear medicine & medical imaging
Diagnostic Radiology
0302 clinical medicine
Occlusion
Medicine and Health Sciences
Moyamoya disease
Cardiovascular Imaging
lcsh:Science
Stenosis
Brain Diseases
Multidisciplinary
medicine.diagnostic_test
Radiology and Imaging
Angiography
Brain
Arteries
Middle Aged
Magnetic Resonance Imaging
Data Acquisition
Neurology
Feature (computer vision)
Female
Anatomy
Moyamoya Disease
Research Article
Adult
Computer and Information Sciences
Imaging Techniques
Surgical and Invasive Medical Procedures
Research and Analysis Methods
03 medical and health sciences
Signs and Symptoms
Diagnostic Medicine
medicine
Humans
Aged
business.industry
lcsh:R
Biology and Life Sciences
Magnetic resonance imaging
Cerebral Arteries
medicine.disease
Compressed sensing
Cardiovascular Anatomy
Blood Vessels
lcsh:Q
Nuclear medicine
business
030217 neurology & neurosurgery
Magnetic Resonance Angiography
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 13
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....40eb354013b7784b4067a183a65a7c74