The curves below show the cumulative distributions for the DLP and CTDIvol  from adult DRL surveys submitted to ARPANSA in 2024. The plots display the percentage of surveys that achieved a facility reference level (FRL) below the dose specified on the x-axis. 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 present national DRL is represented by the vertical red line. The national DRL was derived from data submitted in earlier years and, consequently, the DRLs do not match the 75th percentile of the plotted distributions.

Head

Graph showing MDCT Cumulative CTDI distribution in the head 2024
Graph showing MDCT Cumulative DLP distribution - Head 2024

Soft-tissue neck

Graph showing MDCT Cumulative CTDI distribution Soft tissue of the neck 2024
Graph showing MDCT Cumulative DLP distribution Soft tissue in the neck 2024

Cervical spine

Graph showing MDCT Cumulative CTDI distribution Cervical in the Spine 2024
Graph showing MDCT Cumulative DLP distribution Cervical of the Spine 2024

Chest

Graph showing MDCT Cumulative CTDI distribution of the Chest 2024
Graph showing MDCT Cumulative DLP distribution of the Chest 2024

Chest-abdomen-pelvis

Graph showing MDCT Cumulative CTDI distribution of the Chest abdomen pelvis 2024
Graph showing MDCT Cumulative DLP distribution of the Chest abdomen pelvis 2024

Abdomen-pelvis

Graph showing MDCT Cumulative CTDI distribution of the Abdomen pelvis 2024
Graph showing MDCT Cumulative DLP distribution - Abdomen pelvis 2024

Kidney-ureter-bladder

Graph showing MDCT Cumulative CTDI distribution of the Kidney ureter bladder 2024
Graph showing MDCT Cumulative DLP distribution of the Kidney ureter bladder 2024

Lumbar spine

Graph showing MDCT Cumulative CTDI distribution of the Lumbar spine 2024
Graph showing MDCT Cumulative DLP distribution of the Lumbar spine 2024

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