[CT/MRI correlated stereometry with ultrasound in brain surgery].
Today the accuracy of medical imaging systems lies between +/- 0.5 mm (CT) and +/- 2.5 mm (MRI). In neurosurgery the overall uncertainty may reach the dimension centimetres. A non-tactile ultrasonic measurement system is described that allows three-dimensional measurement with a theoretical accuracy of +/- 0.1 mm in a frequency range between 50 and 70 kHz. In practice the accuracy is better than +/- 1 mm with a repetition rate of 10 per second for the x,y,z-data sets.
Fachbereich Medizintechnik, Interstaatliche Ingenieurschule Neu-Technikum Buchs.
H J
HJ
Zweifel
H F
HF
Reinhardt
G A
GA
Horstmann
E
E
Amrein
D015901:Angiography, Digital Subtraction / Q000295:instrumentation; D001927:Brain Diseases / Q000601:surgery*; D002533:Cerebral Angiography / Q000295:instrumentation; D004453:Echoencephalography / Q000295:instrumentation*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008838:Microcomputers; D008953:Models, Anatomic; D012984:Software; D013238:Stereotaxic Techniques / Q000295:instrumentation*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*
CT/MRI-korrelierte Stereometrie mit Ultraschall für Hirnoperationen.