Comparative study of application accuracy of two frameless neuronavigation systems: Experimental error assessment quantifying registration methods and clinically influencing factors: Commentary

摘要

Even though the overall accuracy of neuronavigation systems is <1.5mm, we should always pay attention to brain shift and the other factors which are fluctuating during surgery in real clinical settings. In addition, we should remember the influences of the pressure of head rest of MM apparatus and the gravity to soft tissue of scalp and face those changes depending on patient s position. The important thing is that we should know the characteristics of image guidance systems and rely on a surgeon s final judgment.