Source-to-surface distance adjustment and graphical user interfaces

A computer system comprising:

• a radiotherapy machine having a display screen;
• and
• at least one processor in communication with the display screen, the processor configured to:
• present, on the display screen located on a gantry of the radiotherapy machine configured to implement radiotherapy treatment of a patient, a set of icons corresponding to a set of instructions associated with adjusting at least one attribute of the radiotherapy machine before the radiotherapy treatment starts;
• calculate a source to skin distance (SSD) for the patient;
• adjust a couch of the radiotherapy machine, such that the SSD is within a tolerable threshold of a defined SSD;
• and
• present, on the display screen, a visual indicator indicating that a correct SSD has been achieved.

A method comprising:

• presenting, by at least one processor on a display screen located on a gantry of a radiotherapy machine configured to implement radiotherapy treatment of a patient, a set of icons corresponding to a set of instructions associated with adjusting at least one attribute of the radiotherapy machine before the radiotherapy treatment starts;
• calculating, by the at least one processor, a source to skin distance (SSD) for the patient;
• adjusting, by the at least one processor, a couch of the radiotherapy machine, such that the SSD is within a tolerable threshold of a defined SSD;
• and
• presenting, by the at least one processor on the display screen, a visual indicator indicating that a correct SSD has been achieved.