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Facility reference level data

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The curves below show the cumulative distributions for the DLP and CTDIvol from adult DRL surveys submitted to ARPANSA between the end of April 2013 (when we started collecting information regarding iterative reconstruction) and the end of 2019. The plots display the percentage of surveys that achieved a facility reference level (FRL) below the dose specified on the x-axis. Note that data collection for soft-tissue neck, cervical spine and KUB scans only began in 2018.

The blue curve represents all of the submitted data, the orange curve represents the surveys where iterative reconstruction (IR) was used and the green curve represents the surveys where IR was not used. The data portrayed includes data other than that used to calculate the current DRLs and, consequently, the DRLs do not match the 75th percentile of the plotted distributions.

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Head

Head CTDI distribution Head DLP distribution

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Soft tissue neck

Soft-tissue neck CTDI distribution Soft-tissue neck DLP distribution

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Cervical spine

Cervical spine CTDI distribution Cervical spine DLP distribution

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Chest

Chest CTDI distribution Chest DLP distribution

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Chest abdomen pelvis

Chest abdomen pelvis CTDI distribution Chest abdomen pelvis DLP distribution

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Abdomen pelvis

Abdomen Pelvis CTDI distribution Abdomen Pelvis DLP distribution

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Kidney Ureter Bladder

Kidney ureter bladder CTDI distribution Kidney ureter bladder DLP distribution

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Lumbar spine

Lumbar spine CTDI distribution Lumbar spine DLP distribution

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