It has been suggested that image-guidance and macro-stimulation alone
are not sufficiently accurate to result in safe and effective lesion l
ocalization in pallidotomy for Parkinson's disease when compared with
micro-electrode recording. This review analyses the data in the series
published to date, and compares the safety and efficacy of the two te
chniques, finding no evidence to support this claim. In addition, evid
ence regarding the necessary accuracy of lesion placement is reviewed.