Evaluation of On-Couch CBCT Image Quality

Participation Requirements

• Sex:

  ALL

• Eligible Ages:

  18 and up

Participation Criteria

Inclusion Criteria:

* Patient age is ≥ 18 years old.
* Patient has a diagnosis of primary or metastatic cancer, including but not limited to tumors arising from or involving the head/neck, lungs, liver, pancreas, prostate, urinary bladder, rectum, cervix or uterus.
* A previous (standard-of-care) decision was made to treat the patient with radiation therapy using a Varian TrueBeam treatment system.
* A previous (standard-of-care) decision was made to treat the patient with a radiation dose of at least 20 Gy in at least 5 fractions, one fraction per day on consecutive days, Monday to Friday.
* Patient is willing and able to provide informed consent to participate in the study.

Exclusion Criteria:

* Patient is pregnant or has plans for pregnancy during the period of treatment.
* Patient is part of a vulnerable population (per ISO 14155:2020, "individuals who are unable to fully understand all aspects of the investigation that are relevant to the decision to participate, or who could be manipulated or unduly influenced as a result of a compromised position, expectation of benefits or fear of retaliatory response").