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Abstract #1776

Cardiac protocol including 1H 3T MRI and 31P MRSI 7T with a dipole array coil

Jabrane Karkouri1, Will Watson2, Jonathan Weir-McCall3,4, Stephen Hoole3, Dennis Klomp5, and Christopher Rodgers1
1University of Cambridge, Cambridge, United Kingdom, 2Department of Cardiovascular Medicine, University of Cambridge, Cambridge, United Kingdom, 3Royal Papworth Hospital, Cambridge, United Kingdom, 4Department of Radiology, University of Cambridge, Cambridge, United Kingdom, 5UMC Utrecht, Utrecht, United Kingdom

Synopsis

Keywords: Heart Failure, Cardiomyopathy

Motivation: 31­P heart applications can be used to monitor cardiac energetics, treatment response in vivo and metabolic inflexibility, a key feature of the failing heart.

Goal(s): We present here a 7T and 3T protocol for 31­P heart application, including the validation of a dipole array coil design.

Approach: We evaluated the performance of the coil at 7T with B1 maps and through in vivo scans of 8 healthy with a long 31P CSI protocol, and tested the 3T protocol on 5.

Results: Results show spectra of excellent quality. PCr/gATP ratios lie within the expected range and B1+ maps show good uniformity.

Impact: This coil design has the potential of lifting the current limitations associated with the wider use of 31­P cardiac MRSI to study the heart energetics. It can also help the diagnosis and the design of new drugs in the future.

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