Differential dose delivery for cancers of the head and neck

A technique was developed for the treatment of head and neck cancers that employs differential dose delivery to primary and nodal areas while simultaneously correcting the dose delivered through various thickness of tissue in the field(s). Our technique modulates the intensity of the static lateral fields in three dimensions utilizing data acquired from a pre-treatment CT scan. This technique has been used to treat patients with various cancers of the head and neck. All patients tolerated treatment well with no observed increase in acute normal tissue reactions.