OBJECTIVE: Virtual reality-simulated environments have been used for the training of
personnel, most notably for military applications, for more than 35 years. The advantages …

Objective: The overall accuracy of neuronavigation systems may be influenced by (1) the
technical accuracy,(2) the registration process,(3) voxel size and/or distortion of image data …

In this article we investigate the effect of geometrical distortion correction in MR images on
the accuracy of the registration of X-ray CT and MR head images for both a fiducial marker …

Purpose: We report our initial experience with helical CT and CT angiography (CTA) in
evaluating cerebral arteriovenous malformations (AVMs) in comparison with time-of-flight …

Background. Stereotactic localisation of proper targets can be obtained with Magnetic
Resonance imaging (MRI), pending correction of the well-known inaccuracy of MRI in …

Treatment of movement disorders by interruption of pathways within the nervous system has
been a goal of neurosurgeons for the past century. When human stereotactic surgery was …

OBJECTIVE: Despite the growing popularity of frameless image-guided surgery systems,
stereotactic frame systems are widely accepted by neurosurgeons and are commonly used …

Object. Some of the earliest successful frame-based stereotactic interventions directed
toward the thalamus and basal ganglia depended on identifying the anterior commissure …

Object. The authors sought to compare the accuracy of stereotactic target imaging using the
Siemens 1T EXPERT and 1.5 T SYMPHONY magnetic resonance (MR) units. Methods. A …

FIGURE 2–1. Concept of registration. Registration is the determination of a one-to-one
mapping or transformation between the coordinates in one space and those in another, such …