A multidisciplinary team was composed of 8 health care professionals; the team leader was the Department Manager. VMAT prostate treatments was divided into 7 steps:
Step 1: Admission and medical examination, Step 2: Programming, Step 3: Simulation CT scan, Step 4: RT Treatment and Planning, Step 5: First RT treatment session, Step 6: Daily RT session, and the final step (No. 7): final RT session.
Each phase was divided into several processes for a total of 109 steps. For each step, the following factors were rated, using a scale of parameters ranging from 1 to 10, and each of the individual parameters was discussed by the group: occurrence, severity, detectability.
The sum of these three values represents the Risk Priority Number (RPN) parameter.
Three different types of processes have been distinguished, based on the RPN values:
• RPN <61: Low risk process
• 61 <RPN <91: Moderate risk process
• RPN> 91: High-risk process
For all high-risk processes, a corrective action had been proposed, while for moderate-risk processes, careful and meticulous monitoring strategy was chosen. No interventions were performed for low-risk processes except that of monitorization.
The workflow of the entire RT process was monitored using the quality checklists present in the system Record&Verify (MOSAIQ version 2.64.278, Elekta healthcare).