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ACR Dose Index Registry
Laura P Coombs, PhD
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How does it work?
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Participation processSign Participation
Agreement and complete registration
form
Get set up and send data
• Install software• Configure scanners• Map exams
Obtain reports
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ACR.ORG/NRDR
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1010
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SSDE Results
All DIR sites
RPID Short Name N 25th %'ile Median 75th %'ile
CT ABD PELVIS W IVCON 13616 15 22 38
CT ABD PELVIS WO IVCON 7307 15 21 30
CT CHST W IVCON 5961 15 28 47
CT CHST WO IVCON 5380 8 14 20
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CTDIvol Results
All DIR sites
RPID Short Name N 25th %'ile Median 75th %'ile
CT ABD PELVIS W IVCON 105518 10 15 22
CT ABD PELVIS WO IVCON 37465 10 16 22
CT CHST W IVCON 32889 9 13 20
CT CHST WO IVCON 36075 7 11 16
CT HEAD BRN WO IVCON 149719 46 56 66
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DLP Results
All DIR sites
RPID Short Name N 25th %'ile Median 75th %'ile
CT ABD PELVIS W IVCON 105517 468 703 1034
CT ABD PELVIS WO IVCON 37465 496 765 1091
CT CHST W IVCON 32888 286 429 671
CT CHST WO IVCON 36074 236 373 537
CT HEAD BRN WO IVCON 149714 645 832 1023
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Mapping Exam Names• Exam names mapped to Radlex Playbook
– http://playbook.radlex.org
• ACR used RadMapps to map all exam names currently in the registry– ~ 21,000 unique exam names
• New facilities may choose to use RadMapps or may use mapping tool on website
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2020
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SSDE
• New version of TRIAD (4.0) allows sites to submit localizer images along with Dose Report
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SSDE
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• Algorithm developed by Duke physicists will measure patient thickness from localizer
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SR vs Dose sheet
Frequency Percent
SR 550326 29
Dose Sheet 1372331 71
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% SRs Transmitted
Percent SRs
# of Facilities
0% 134
1-49% 37
50-99% 27
100% 7
Total 205
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Information Needed• More detail on IR
– % or level of use
• Dual energy– what is reported in terms of kVp?
• Can clinicians view SR?
