StealthViz 3D objects in Mach rainbow color map objects can be colored on FrameLink: – Reformatting: select AC and PC (at ventricular surfaces imitates historical ventriculogram landmarks), select 3 – midline (interhemispheric fissure, aqueduct) apply SW atlas and Talairach grids; stretch grids to conform with patient’s anatomical exam (best to use CUBE FLAIR); mostly work on basal nuclei because impossible to achieve perfect match (SW atlas was created on cadavers with slightly deformed brains) Setting trajectory: choose 1”, rename it (use button), then click button to get suggestion from “Plan “Edit” “Sample” software N.B. software uses only AC-PC coordinates to suggest target at standard location (SW only serves for visual control) (adjust and) Target” “Set (adjust and) “Set play with trajectory by adjusting entry point alternate between and “Anatomical” “Trajectory” ideally, trajectory stretches 5-6 mm of target nucleus, ideally, entry point is on or 1-2 anterior to coronal suture (not too far anterior - to stay behind hairline), and 2-4 cm from midline. point must avoid: cortical vessels deep vessels in sulci (i.e. entry should be on gyrus top) trajectory must deep vessels ventricle caudate nucleus then choose 2” for the side. “Plan at the end may create copies of each plan (in case plan is by accident modified; H: may try “undo” button in lower right button row) - look in sagittal plane (how much in front to coronal suture on CT): - look in coronal plane (how much lateral to midline): CD / USB look what exam types are needed: Go back to very first PREP step (where merging exams) note series # of each exam that – is used
StealthViz 3D objects in Mach rainbow color map – objects can be colored on FrameLink: Reformatting: select AC and PC (at ventricular surfaces – imitates historical ventriculogram landmarks), select 3 midline (interhemispheric fissure, aqueduct) apply SW atlas and Talairach grids; stretch grids to conform with patient’s anatomical exam (best to use CUBE FLAIR); mostly work on basal nuclei because impossible to achieve perfect match (SW atlas was created on cadavers with slightly deformed brains) Setting trajectory: choose “Plan 1”, rename it (use “Edit” button), then click “Sample” button to get suggestion from software N.B. software uses only AC-PC coordinates to suggest target at standard location (SW only serves for visual control) (adjust and) “Set Target” (adjust and) “Set play with trajectory by adjusting entry point alternate between “Anatomical” and “Trajectory” ideally, trajectory stretches 5-6 mm of target nucleus, ideally, entry point is on or 1-2 anterior to coronal suture (not too far anterior - to stay behind hairline), and 2-4 cm from midline. point must avoid: cortical vessels deep vessels in sulci (i.e. entry should be on gyrus top) trajectory must deep vessels ventricle caudate nucleus then choose “Plan 2” for the side. at the end may create copies of each plan (in case plan is by accident modified; H: may try “undo” button in lower right button row) - look in sagittal plane (how much in front to coronal suture on CT): - look in coronal plane (how much lateral to midline): CD / USB look what exam types are needed: Go back to very first PREP step (where merging exams) – note series # of each exam that is used
Op360.%20DBS.docx