3-D optimization of magnetic field shimming in MRI by convex programming approach

Elia A. Attardo, Manuel Perez Cerquera, Francesco P. Andriulli, Giuseppe Vecchi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Spatial uniformity of amplitude and polarization of the RF magnetic field, associate to SAR limitation constitute a crucial problem in the design of advanced Magnetic Resonance Imaging (MRI) equipment. As a result, the issue of shimming the RF magnetic field (i.e. optimizing its space uniformity) has received considerable attention in the recent literature. Recently these authors have introduced and tested in 2D a specialized optimization for this task, where constraints on minimum field, on polarization and SAR limitation have been enforced in an essentially-convex manner by using a convex-under-constraint optimization. Here we discuss the impact of a full 3D scenario, outlining the perceived limits of achievable performance.

Original languageEnglish
Title of host publication2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings
Number of pages2
DOIs
StatePublished - 2012
Externally publishedYes
EventJoint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012 - Chicago, IL, United States
Duration: 08 Jul 201214 Jul 2012

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Conference

ConferenceJoint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012
Country/TerritoryUnited States
CityChicago, IL
Period08/07/1214/07/12

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