Issue release date: 12.11.2024
2Universitas Airlangga, Faculty of Medicine, Department of Neurosurgery, Surabaya, Indonesia
3Universitas Airlangga, Faculty of Medicine, Department of Neurology, Surabaya, Indonesia
4Universitas Airlangga, Faculty of Medicine, Department of Radiology, Surabaya, Indonesia
5Universitas Airlangga, Faculty of Medicine, Department of Public Health and Preventive Medicine, Surabaya, Indonesia
6Institut Teknologi Sepuluh November, Department of Informatics, Surabaya, Indonesia
7Tokyo Women?s Medical University Hospital, Department of Neurosurgery, Tokyo, Japan DOI : 10.5137/1019-5149.JTN.31961-20.2 AIM: To prove that VIM line technique created by using a mathematical model, can be used to identify the location of the ventral intermediate nucleus of the thalamus (VIM)
MATERIAL and METHODS: Eleven patients with Parkinson?s disease (PD) were assessed. To determine the VIM location, 3-T magnetic resonance imaging and stereotactic protocol 128-slice computed tomography were used. The VIM line technique was performed by drawing a line from the end-point of the right external globus pallidus to that of the left external globus pallidus in the intercommissural plane. PD severity was measured using the Unified Parkinson?s Disease Rating Scale (UPDRS).
RESULTS: A mathematical model was constructed to describe the VIM line technique for determining the VIM location. UPDRS scores before and after thalamotomy showed a significant decreasing trend (p=0.003).
CONCLUSION: The VIM line technique using the mathematical model can be considered a referential method to determine the VIM location. Its effectiveness was demonstrated by decreased UPDRS scores in patients after VIM thalamotomy.
Keywords : Thalamotomy, Ventral intermediate location, VIM line technique