PMID: 9533146Apr 9, 1998Paper

Experimental procedure for the manufacture and calibration of polyacrylamide gel (PAG) for magnetic resonance imaging (MRI) radiation dosimetry

Physics in Medicine and Biology
Clive BaldockS F Keevil

Abstract

A simple methodology for the manufacture and calibration of polyacrylamide gel (PAG) for magnetic resonance imaging (MRI) radiation dosimetry is presented to enable individuals to undertake such work in a routine clinical environment. Samples of PAG were irradiated using a linear accelerator and imaged using a 0.5 T (22 MHz) Philips Gyroscan MRI scanner. The mean spin-lattice relaxation rate was measured using a 'turbo-mixed' sequence, consisting of a series of 90 degrees pulses, each followed by acquisition of a train of spin echoes. The mean sensitivity for five different batches of PAG in the range up to 10 Gy was calculated to be 0.0285 s-1 Gy-1 for the mean spin-lattice relaxation rate with a percentage standard deviation of 1.25%. The overall reproducibility between batches was calculated to be 2.69%. This methodology, which introduces the novel use of pre-filled nitrogen vials for calibration, has been used to develop techniques for filling anatomically shaped anthropomorphic phantoms.

References

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Citations

Jul 19, 2001·Australasian Physical & Engineering Sciences in Medicine·C BaldockB Healy
Aug 14, 2008·Australasian Physical & Engineering Sciences in Medicine·M L TaylorP N Johnston
Aug 3, 2005·Australasian Physical & Engineering Sciences in Medicine·A J VenningC Baldock
Feb 5, 2013·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Marianthi-Vasiliki PapoutsakiJohn Damilakis
Aug 16, 2003·Ultrasonics·Melissa L MatherClive Baldock
Aug 29, 2012·Proceedings of the National Academy of Sciences of the United States of America·Ridthee MeesatDaniel Houde
Feb 13, 2010·Physics in Medicine and Biology·C BaldockL J Schreiner
May 18, 2005·Medical Physics·A J VenningC Baldock
Mar 20, 2012·PloS One·Ling-Ling HsiehBor-Tsung Hsieh
Apr 1, 2006·Journal of Medical Physics·Brindha SubramanianClive Baldock
Sep 26, 2013·Nihon Hoshasen Gijutsu Gakkai zasshi·Hiraku KawamuraAkira Matsumura
Jun 18, 2005·The British Journal of Radiology·B HillC Baldock
Mar 4, 2000·The British Journal of Radiology·A R FarajollahiJ A Mills
Nov 7, 2000·The British Journal of Radiology·M McJuryS Webb
May 3, 2007·Physics in Medicine and Biology·J J LuciJ C Gore
Dec 22, 1999·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·O I CraciunescuS T Clegg
Dec 18, 2001·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·M LepageC Baldock
Nov 3, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·E VanossiM Mariani
Apr 21, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·E VanossiM Mariani
Feb 22, 2008·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·B HillC Baldock
Mar 13, 2016·Journal of Radiation Research·Takuya MaeyamaShigekazu Fukuda
Jul 28, 2004·International Journal of Radiation Oncology, Biology, Physics·Panagiotis SandilosLampros Vlahos
Jul 20, 2005·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·C HurleyC Baldock
Oct 2, 2013·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Adem Un
Mar 23, 2017·The Journal of Physical Chemistry. B·Takuya MaeyamaShigekazu Fukuda
Nov 13, 2003·Applied Spectroscopy·L RintoulC Baldock
Mar 15, 2014·Ultrasonic Imaging·Ali DabbaghNoor Hayaty Abu Kasim
Mar 1, 2016·Dose-response : a Publication of International Hormesis Society·Hossein MasoumiMohsen Bakhshandeh
Nov 19, 2003·Physics in Medicine and Biology·Melissa L MatherClive Baldock
May 4, 2017·Physics in Medicine and Biology·L P KaplanP S Skyt
Aug 13, 2002·Physics in Medicine and Biology·Y De DeeneC Baldock
Nov 30, 2004·Physics in Medicine and Biology·S BrindhaC Baldock
Mar 31, 2005·Physics in Medicine and Biology·P KaraiskosL Vlachos
Jan 15, 2009·Physics in Medicine and Biology·Remo A CrescentiSteve Webb
Dec 18, 2008·Physics in Medicine and Biology·Stephen G BosiClive Baldock
Sep 18, 2009·Physics in Medicine and Biology·Ridthee MeesatMartin Lepage

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