![]() Neurosurgery 42:1304–1310 discussion 1310-1301Ĭarl B, Bopp M, Chehab S, Bien S, Nimsky C (2018) Preoperative 3-dimensional angiography data and intraoperative real-time vascular data integrated in microscope-based navigation by automatic patient registration applying intraoperative computed tomography. īutler WE, Piaggio CM, Constantinou C, Niklason L, Gonzalez RG, Cosgrove GR, Zervas NT (1998) A mobile computed tomographic scanner with intraoperative and intensive care unit applications. īurchiel KJ, McCartney S, Lee A, Raslan AM (2013) Accuracy of deep brain stimulation electrode placement using intraoperative computed tomography without microelectrode recording. Neurosurgery 41:831–842 discussion 842-835īot M, van den Munckhof P, Bakay R, Stebbins G, Verhagen Metman L (2017) Accuracy of intraoperative computed tomography during deep brain stimulation procedures: comparison with postoperative magnetic resonance imaging. Intraoperative CT allows highly reliable navigation registration with low radiation exposure.īlack PM, Moriarty T, Alexander E 3rd, Stieg P, Woodard EJ, Gleason PL, Martin CH, Kikinis R, Schwartz RB, Jolesz FA (1997) Development and implementation of intraoperative magnetic resonance imaging and its neurosurgical applications. the low dose sinus protocol 0.72 ± 0.43 mm) while a reduction of the effective radiation dose by a factor of 8 could be achieved (mean effective radiation dose head protocol: 2.73 mSv vs. Implementation of low-dose scanning protocols did not impede registration accuracy (registration error applying the full dose head protocol: 0.87 ± 0.36 mm vs. ![]() ResultsĪutomatic registration resulted in high registration accuracy (mean registration error: 0.93 ± 0.41 mm). Registration accuracy was measured by at least three skin fiducials that were not part of the registration process. MethodsĪ total of 200 patients (141 craniotomy, 19 transsphenoidal, and 40 stereotactic burr hole procedures) were investigated by intraoperative CT applying a 32-slice movable CT scanner, which was used for automatic navigation registration. The aim of this paper is to evaluate our initial experience applying intraoperative computed tomography (CT) for navigation registration in cranial neurosurgery, with a special focus on registration accuracy and effective radiation dose. Intraoperative imaging offers the possibility for user-independent patient registration. Standard fiducial- or landmark-based patient registration is user dependent and error-prone. ![]() Registration accuracy is a main factor influencing overall navigation accuracy. ![]()
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