The curves below show the change in the median of the FRL distribution since the beginning of 2012 for different protocols. The graphs have been generated by examining the surveys submitted during a moving 12-month period, where the start and end points of the window have been shifted by daily intervals. The x-axis is the end date of the 12-month interval, the blue line is the median of the corresponding FRL distribution, the red line denotes the current DRL and the light blue region indicates the 25th– 75th percentile range.

Note that the cervical spine, KUB and soft-tissue neck data only go back to 2018 because these protocols were only added to the list of national DRLs and included in the data collection at that time.

Head

Graph showing MDCT CTDI of the Head
Graph showing MDCT DLP - Head

Soft-tissue neck

Graph showing MDCT CTDI Soft tissue of the neck
Graph showing MDCT DLP Soft tissue of the neck

 

Cervical spine 

Graph showing MDCT CTDI of the Cervical Spine
Graph showing MDCT DLP of the Cervical Spine

Chest

Graph showing MDCT CTDI of the Chest
Graph showing MDCT DLP of the Chest

Chest-abdomen-pelvis

Graph showing MDCT CTDI of the Chest abdomen pelvis
Graph showing MDCT DLP of the Chest abdomen pelvis

Abdomen-pelvis

Graph showing MDCT CTDI of the Abdomen pelvis
Graph showing MDCT DLP of the Abdomen-pelvis

Kidney-ureter-bladder

Graph showing MDCT CTDI of the Kidney ureter bladder
Graph showing MDCT DLP of the Kidney ureter bladder

Lumbar spine

Graph showing MDCT CTDI of the Lumbar Spine
Graph showing MDCT DLP of the Lumbar spine

Access to information FOI disclosure log Information public scheme