Quality Assurance and the ACR MRI Accreditation Program PDF
Preview Quality Assurance and the ACR MRI Accreditation Program
Physicists’ Quality Control for MR Equipment Geoffrey D. Clarke, Ph.D. University of Texas Health Science Center at San Antonio Radiological Sciences Division Overview • MRI Standards • MRI Accreditation Program • MRI Quality Control Program – Definitions – Physicist’s Responsibilities – Technologist’s Daily & Weekly QC Tasks – Other Tests for the Physicist Standards & Accreditation • ACR Standard for Performing and Interpreting MRI (Res. 16-2000) • ACR Standard for Diagnostic Medical Physics Performance Monitoring of MRI Equipment (Res. 19-1999) • ACR Magnetic Resonance Imaging Accreditation Program AACCRR SSttaannddaarrdd ffoorr DDiiaaggnnoossttiicc MMeeddiiccaall PPhhyyssiiccss PPeerrffoorrmmaannccee MMoonniittoorriinngg ooff MMRRII EEqquuiippmmeenntt 1999 (Res. 19) QQQuuuaaallliiifffiiicccaaatttiiiooonnnsss QQQuuuaaallliiifffiiieeeddd MMMeeedddiiicccaaalll PPPhhhyyysssiiiccciiisssttt •••ccceeerrrtttiiifffiiieeeddd iiinnn dddiiiaaagggnnnooossstttiiiccc rrraaadddiiiooolllooogggiiicccaaalll ppphhhyyysssiiicccsss •••cccooonnntttiiinnnuuuiiinnnggg eeeddduuucccaaatttiiiooonnn iiinnn MMMRRRIII ppphhhyyysssiiicccsss QQuuaalliiffiieedd MMRR SScciieennttiisstt •••gggrrraaaddduuuaaattteee dddeeegggrrreeeeee iiinnn ppphhhyyysssiiicccaaalll sssccciiieeennnccceee •••333 yyyeeeaaarrrsss dddooocccuuummmeeennnttteeeddd cccllliiinnniiicccaaalll MMMRRR eeexxxpppeeerrriiieeennnccceee •••cccooonnntttiiinnnuuuiiinnnggg eeeddduuucccaaatttiiiooonnn iiinnn MMMRRRIII ppphhhyyysssiiicccsss AACCRR SSttaannddaarrdd ffoorr DDiiaaggnnoossttiicc MMeeddiiccaall PPhhyyssiiccss PPeerrffoorrmmaannccee MMoonniittoorriinngg ooff MMRRII EEqquuiippmmeenntt 1999 (Res. 19) RRReeessspppooonnnsssiiibbbiiillliiitttiiieeesss AAAcccccceeeppptttaaannnccceee TTTeeessstttiiinnnggg AAnnnnuuaall PPeerrffoorrmmaannccee EEvvaalluuaattiioonn EEssttaabblliisshh CCoonnttiinnuuoouuss QQuuaalliittyy CCoonnttrrooll PPrrooggrraamm ••• ssseeettt aaaccctttiiiooonnn cccrrriiittteeerrriiiaaa ••• rrreeevvviiieeewww QQQCCC ppprrrooogggrrraaammm rrreeecccooorrrdddsss ddduuurrriiinnnggg aaannnnnnuuuaaalll sssuuurrrvvveeeyyy PPrroovviiddee wwrriitttteenn ssuurrvveeyy rreeppoorrttss oonn ttiimmeellyy bbaassiiss AACCRR SSttaannddaarrdd ffoorr DDiiaaggnnoossttiicc MMeeddiiccaall PPhhyyssiiccss PPeerrffoorrmmaannccee MMoonniittoorriinngg ooff MMRRII EEqquuiippmmeenntt 1999 (Res. 19) CCCooonnntttiiinnnuuuooouuusss QQQCCC PPPrrrooogggrrraaammm PPeerrffoorrmmeedd bbyy TTeecchhnnoollooggiisstt:: •••RRRFFF cccaaallliiibbbrrraaatttiiiooonnn fffooorrr ttthhheee hhheeeaaaddd cccoooiiilll •••MMMaaagggnnneeetttiiiccc fffiiieeelllddd gggrrraaadddiiieeennnttt cccaaallliiibbbrrraaatttiiiooonnn •••IIImmmaaagggeee SSSNNNRRR &&& uuunnniiifffooorrrmmmiiitttyyy fffooorrr ttthhheee hhheeeaaaddd cccoooiiilll •••PPPrrroooccceeessssssooorrr ssseeennnsssiiitttooommmeeetttrrryyy •••PPPhhhyyysssiiicccaaalll aaannnddd mmmeeeccchhhaaannniiicccaaalll iiinnnssspppeeeccctttiiiooonnn •••HHHaaarrrddd cccooopppyyy fffiiidddeeellliiitttyyy AACCRR SSttaannddaarrdd ffoorr DDiiaaggnnoossttiicc MMeeddiiccaall PPhhyyssiiccss PPeerrffoorrmmaannccee MMoonniittoorriinngg ooff MMRRII EEqquuiippmmeenntt 1999 (Res. 19) Physicist’s Annual Equipment Survey: All of the routine QC tests plus: – Phase stability – Magnetic field homogeneity – Calibration of all radiofrequency coils – Image signal-to-noise ratio & uniformity for all coils – Inter-slice RF interference – Artifact evaluation ACR MRI Accreditation Program Features • Evaluates effectiveness of quality control measures • Will collect findings to further the development of quality control information • Qualified Medical Physicist should be responsible for overseeing the equipment quality control program ACR MRI Accreditation Program MRI Survey Agreement • Official request for ACR Accreditation • Site agrees to provide all documentation, including but not limited to quality control logs, films, records, or any necessary information requested by the survey team • Agree to use the ACR MRI phantom ACR MRI Accreditation Program Quality Control Section • Refers to tests put forth in the ACR Standard for MRI • All tests to be carried out in accordance with written procedures and methods • Preventative maintenance: – Documented by qualified service engineer – Repairs documented and records maintained by the MR site
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