Common questions and answers about TomoTherapy®

How long will the procedure take?
Most TomoTherapy® treatment typically takes about 20 minutes from when the patient enters the treatment room until they leave. This includes daily CT scanning and treatment (“beam-on time”) time as well as patient set-up, positioning and image registration to ensure accuracy. The actual time will vary by patient.

Why perform a CT scan every day?
CTrue™ imaging, available only from the Hi•Art® system, allows clinicians to see what they plan to treat immediately prior to beginning each treatment fraction. This is important because anatomy can change from day to day. CTrue helps ensure that the treatment positioning is accurate every day. In addition, daily CT scans can be used to adapt a treatment plan, if necessary.