We illustrate a radiotherapy treatment chart elaborated to fulfil the
necessity for clarity in reporting information about radiotherapeutic
treatment. The schematic configuration of the chart results from the e
xperience and the cooperation of physicists, physicians and technician
s, and an effort has been made to satisfy Levels 2/3 of the ICRU 50 re
commendations. The chart has been divided into four sections correspon
ding to different kinds of information: a cover sheet, a section conta
ining data about the treatment planning geometry and the console param
eters adopted, a section showing dosimetric data, and a section showin
g treatment data. The chart seems to give a good level of accuracy in
reporting treatment plan information.