 The patient arrived to Outpatient CyberKnife Suite one day prior to the treatment.  He was placed on the treatment table.  The Aquaplast mask was constructed.  Initial imaging was obtained by the CyberKnife system.  The patient was then transported over to the CT scanner at Stanford.  Under the supervision of Dr. X, 125 mL of Omnipaque 250 contrast was administered.  Dr. X then supervised the acquisition of 1.2-mm contiguous axial CT slices.  These images were uploaded over the hospital network to the treatment planning computer, and the patient was discharged home.