Temperature mapping near the surface of ultrasound transducers using susceptibility- compensated magnetic resonance imaging

Andrew G. Webb, Thomas Neuberger, Eun Joo Park, Nadine Smith

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Magnetic resonance imaging (MRI)-based temperature mapping very close to the surface of an ultrasound transducer is not possible due to the large magnetic susceptibility- induced image artifacts that arise from the materials used in transducer construction. Here, it is shown in phantoms that "susceptibility-compensated" MRI sequences can be used to measure thermal increases 1 mm from the surface of a 4-element cymbal array transducer, which has been used widely for noninvasive transdermal drug delivery. The estimated temperatures agree well with those measured using thermocouples.

Original languageEnglish (US)
Article number5075097
Pages (from-to)1145-1150
Number of pages6
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume56
Issue number6
DOIs
StatePublished - Jun 1 2009

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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