Abstract #4459
3D Late Gadolinium Enhancement Imaging using CENTRA-PLUS ordering with Weighted Navigator Acquisition: Feasibility of Surgically Implanted RV Patch Volume Quantification in Swine Model
Keigo Kawaji 1 , Akiko Tanaka 2 , Mita Patel 1 , Sui-Cheng Wang 3 , Hui Wang 4 , Takeyoshi Ota 2 , Roberto M. Lang 1 , and Amit R. Patel 1
1
Medicine, Section of Cardiology, The
University of Chicago, Chicago, Illinois, United States,
2
Surgery,
The University of Chicago, Chicago, Illinois, United
States,
3
Biomedical
Engineering, Northwestern University, Evanston,
Illinois, United States,
4
Philips
Medical Systems, Cleveland, Ohio, United States
In this study, we propose a novel ECG-triggered and
navigator-gated 3D LGE acquisition method that uses
CENTRA-PLUS profile/view ordering that is designed to
acquires central and peripheral k-space with a weighted
navigator gating window. Six pigs were surgically
implanted with Right Ventricular (RV) patches, and MRI
was performed 7-9 weeks after surgery. RV patch volume
quantification was performed using both 2D PSIR LGE and
the proposed 3D PSIR LGE images, and volume measurement
errors were compared to the gold standard direct
measurements made on the surgically excised RV patch
region.
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