Statistics of IR navigation system applied to the subgroup of patients (20) of the Phase I HPPH-pPDT clinical trial between 10 and 34. Patients with missing Case # between 10 and 34 did not have PDT even though they were enrolled into the phase I protocol. The first column is the patient ID, the second column is the results of percentage of good data (i.e., more than 3 of the reflective markers of the wand were not blocked by obstacles by the IR camera during PDT treatment) throughout the entire course of PDT treatment, the third column indicates whether a reference marker mounted on table was used or not, the forth column shows whether the detector positions were obtained or not.