Journal article
Application of Direct Virtual Coil to Dynamic Contrast-Enhanced MRI and MR Angiography with Data-Driven Parallel Imaging
Magnetic resonance in medicine, Vol.71(2), pp.783-789
02/01/2014
DOI: 10.1002/mrm.24686
PMCID: PMC3674192
PMID: 23441013
Abstract
PurposeTo demonstrate the feasibility of direct virtual coil (DVC) in the setting of 4D dynamic imaging used in multiple clinical applications.
Theory and MethodsThree dynamic imaging applications were chosen: pulmonary perfusion, liver perfusion, and peripheral MR angiography (MRA), with 18, 11, and 10 subjects, respectively. After view-sharing, the k-space data were reconstructed twice: once with channel-by-channel (CBC) followed by sum-of-squares coil combination and once with DVC. Images reconstructed using CBC and DVC were compared and scored based on overall image quality by two experienced radiologists using a five-point scale.
ResultsThe CBC and DVC showed similar image quality in image domain. Time course measurements also showed good agreement in the temporal domain. CBC and DVC images were scored as equivalent for all pulmonary perfusion cases, all liver perfusion cases, and four of the 10 peripheral MRA cases. For the remaining six peripheral MRA cases, DVC were scored as slightly better (not clinically significant) than the CBC images by Radiologist A and as equivalent by Radiologist B.
ConclusionFor dynamic contrast-enhanced MR applications, it is clinically feasible to reduce image reconstruction time while maintaining image quality and time course measurement using the DVC technique. Magn Reson Med 71:783-789, 2014. (c) 2013 Wiley Periodicals, Inc.
Details
- Title: Subtitle
- Application of Direct Virtual Coil to Dynamic Contrast-Enhanced MRI and MR Angiography with Data-Driven Parallel Imaging
- Creators
- Kang WangPhilip J. Beatty - Sunnybrook Health Science CentreScott K. Nagle - University of Wisconsin–MadisonScott B. Reeder - University of Wisconsin–MadisonJames H. HolmesMahdi S. Rahimi - University of Wisconsin–MadisonLaura C. Bell - University of Wisconsin–MadisonFrank R. Korosec - University of Wisconsin–MadisonJean H. Brittain
- Resource Type
- Journal article
- Publication Details
- Magnetic resonance in medicine, Vol.71(2), pp.783-789
- DOI
- 10.1002/mrm.24686
- PMID
- 23441013
- PMCID
- PMC3674192
- NLM abbreviation
- Magn Reson Med
- ISSN
- 0740-3194
- eISSN
- 1522-2594
- Publisher
- Wiley
- Number of pages
- 7
- Grant note
- NIH-R01 EB006882; NIH R01 DK083380; R01 DK088925; RC1 EB010384 / UW Radiology R&D Committee, NIH, UW School of Medicine and Public Health Wisconsin Partnership Program R01DK088925 / NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Diabetes & Digestive & Kidney Diseases (NIDDK) R01EB006882 / NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Biomedical Imaging & Bioengineering (NIBIB)
- Language
- English
- Date published
- 02/01/2014
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology
- Record Identifier
- 9984295028002771
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