Three-dimensional black-blood multi-contrast carotid imaging using compressed sensing: a repeatability study

Autor: Martin J. Graves, Jonathan H. Gillard, Ammara Usman, Scott Reid, Jianmin Yuan, Kevin F. King, Andrew J. Patterson
Přispěvatelé: Gillard, Jonathan [0000-0003-4787-8091], Graves, Martin [0000-0003-4327-3052], Apollo - University of Cambridge Repository
Rok vydání: 2017
Předmět:
Adult
Male
Scanner
Materials science
Intraclass correlation
Black blood
Biophysics
Contrast Media
030218 nuclear medicine & medical imaging
Young Adult
03 medical and health sciences
Imaging
Three-Dimensional
0302 clinical medicine
Optics
Multi contrast
Image Interpretation
Computer-Assisted
Humans
Carotid Stenosis
Radiology
Nuclear Medicine and imaging
Aged
Aged
80 and over
Reproducibility
Radiological and Ultrasound Technology
business.industry
Multi-contrast
Reproducibility of Results
Repeatability
Middle Aged
Data Compression
Magnetic Resonance Imaging
Healthy Volunteers
Cardiac Imaging Techniques
Carotid Arteries
Compressed sensing
Case-Control Studies
Female
Carotid imaging
business
Nuclear medicine
Carotid MRI
Magnetic Resonance Angiography
030217 neurology & neurosurgery
Research Article
Zdroj: Magma (New York, N.y.)
ISSN: 1352-8661
0968-5243
DOI: 10.1007/s10334-017-0640-1
Popis: The purpose of this work is to evaluate the repeatability of a compressed sensing (CS) accelerated multi-contrast carotid protocol at 3 T. Twelve volunteers and eight patients with carotid disease were scanned on a 3 T MRI scanner using a CS accelerated 3-D black-blood multi-contrast protocol which comprises T 1w, T 2w and PDw without CS, and with a CS factor of 1.5 and 2.0. The volunteers were scanned twice, the lumen/wall area and wall thickness were measured for each scan. Eight patients were scanned once, the inter/intra-observer reproducibility of the measurements was calculated. In the repeated volunteer scans, the interclass correlation coefficient (ICC) for the wall area measurement using a CS factor of 1.5 in PDw, T 1w and T 2w were 0.95, 0.81, and 0.97, respectively. The ICC for lumen area measurement using a CS factor of 1.5 in PDw, T 1w and T 2w were 0.96, 0.92, and 0.96, respectively. In patients, the ICC for inter/intra-observer measurements of lumen/wall area, and wall thickness were all above 0.81 in all sequences. The results show a CS accelerated 3-D black-blood multi-contrast protocol is a robust and reproducible method for carotid imaging. Future protocol design could use CS to reduce the scanning time.
Databáze: OpenAIRE
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