Thanks for your reply Nicola.
Currently we only use Align for breasts, and no, thankfully (so far!) we aren’t missing all of our external contour, however occasionally we have to offset the breastboard in the scanner to get the patient through. We have a workaround which is to plan these patients on the wingboard, which unfortunately wasn’t an option for one of our recent patients, where using the breastboard incline was critical.
As we move forward with other sites, there are concerns with some of the larger pelvic patients that the data loss may be both sides, but your suggestion to take a reference based on imaging day 1 is a smooth workaround that could easily be followed, assuming the imaging is within tolerance.