Paper
28 May 2001 Correlation of preoperative MRI and intraoperative 3D ultrasound to measure brain tissue shift
David G. Gobbi, Belinda K. H. Lee, Terence M. Peters
Author Affiliations +
Abstract
B-Mode ultrasound is often used during neurosurgery to provide intra-operative images of the brain though a craniotomy, but the use of 3D ultrasound during surgery is still in its infancy. We have developed a system that provides real-time freehand 3D ultrasound reconstruction at a reduced resolution. The reconstruction proceeds incrementally and the 3D image is overlayed, via a computer, on a pre-operative 3D MRI scan. This provides the operator with the necessary feedback to maintain a constant freehand sweep-rate, and also ensures that the sweep covers the desired anatomical volume. All of the ultrasound video frames are buffered, and a full-resolution, compounded reconstruction proceeds once the manual sweep is complete. We have also developed tools for manual tagging of homologous landmarks in the 3D MRI and 3D ultrasound volumes that use a piecewise cubic approximation of thin-plate spline interpolation to achieve interactive nonlinear registration and warping of the MRI volume to the ultrasound volume: Each time a homologous point-pair is identified by the use, the image of the warped MRI is updated on the computer screen after less than 0.5 s.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David G. Gobbi, Belinda K. H. Lee, and Terence M. Peters "Correlation of preoperative MRI and intraoperative 3D ultrasound to measure brain tissue shift", Proc. SPIE 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures, (28 May 2001); https://doi.org/10.1117/12.428064
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Cited by 15 scholarly publications.
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KEYWORDS
Ultrasonography

Magnetic resonance imaging

Brain

3D image processing

Neuroimaging

3D image reconstruction

Image registration

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