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Compatible Dual-Echo Arteriovenography (CODEA) using an Echo-specific K-space Reordering Scheme in Magnetic Resonance Imaging (MRI)

详细技术说明

None

*Abstract

BackgroundBecause MRA (MR angiography) and MRV (MR venography) depict different neuronal and vascular abnormalities in brain diseases, it is desirable to acquire both MRA and MRV in clinical brain imaging studies. Nevertheless, both MRA (based on TOF contrast) and MRV (based on BOLD contrast) require relatively long scan duration, typically 5-15 minutes for each method. Accordingly, acquisition of both MRA and MRV in routine clinical brain imaging studies would prolong the total imaging time, reduce the MR examination throughput, and limit patient compliance. As a result, MRV is not routinely performed in clinical brain imaging examinations.TechnologyThe inventors have developed an improved MR imaging technique that allowed them to simultaneously acquire time of flight MR angiogram (MRA) and blood-oxygenation-level-dependent MR venogram (MRV) in a single MR acquisition at 3T. As a result, they were able to acquire a simultaneous dual-echo MRA and MRV with their image quality comparable to that for the conventional single echo MRA and MRV that were acquired separately at two different sessions.Applications1) Can be used as an vascular imaging tool for any organ. Advantages1)Our new technique can replace the conventional magnetic resonance TOF angiography routinely used in hospitals, because it enables us to acquire venogram as well as TOF angiogram with no additional scan time.Stage of DevelopmentThe proprietary algorithm has been implemented and tested successfully in vivo (human).

*Principal Investigation

Name: Kyong Bae

Department: Med-Radiology

Name: Sung-Hong Park, Graduate Student Researcher

Department: Med-Radiology

国家/地区

美国