Experimental Evaluation of PARSISS Image Guided Surgery System

In this report, a thorough validation of PARSISS Image Guided Surgery has been presented. Different experiments have been designed to evaluate Parsiss navigation system under three main scopes: first, a phantom study using a sophisticated precise phantom with 732 landmarks was constructed by 3d printing with layers of 16 micron thickness and 0.1 mm precision; second, performing preclinical cadaver experiment with titanium placed markers; and third, clinical evaluation which was carried out on 957 cases from 2010 to 2014. Results obtained from three evaluation methods showed that the system was found reliable and usable. Briefly, the average registration error in PARSISS precise phantom test was reported lower than 2 mm which is clinically acceptable and reasonable in neurosurgery and ENT surgeries. In clinical evaluation, surgeons approved the accuracy and reliability of the system in thorough clinical evaluation in 94% of cases of 957 patients. In this study, the results of all three approaches were positive and reliable. Especially, evaluations using a large number of patients showed that the PARSISS surgical navigation system has shown a high level of reliability in clinical procedures.