Int J Med Robot - Automatic scanning of large tissue areas in neurosurgery using optical coherence tomography.

Tópicos

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Resumo

CKGROUND: With its high spatial and temporal resolution, optical coherence tomography (OCT) is an ideal modality for intra-operative imaging. One possible application is to detect tumour invaded tissue in neurosurgery, e.g. during complete resection of glioblastoma. Ideally, the whole resection cavity is scanned. However, OCT is limited to a small field of view (FOV) and scanning perpendicular to the tissue surface.METHODS: We present a new method to use OCT for scanning of the resection cavity during neurosurgical resection of brain tumours. The main challenges are creating a map of the cavity, scanning perpendicular to the surface and merging the three-dimensional (3D) data for intra-operative visualization and detection of residual tumour cells.RESULTS: Our results indicate that the proposed method enables creating high-resolution maps of the resection cavity. An overlay of these maps with the microscope images provides the surgeon with important information on the location of residual tumour tissue underneath the surface.CONCLUSION: We demonstrated that it is possible to automatically acquire an OCT image of the complete resection cavity. Overlaying microscopy images with depth information from OCT could lead to improved detection of residual tumour cells.

Resumo Limpo

ckground high spatial tempor resolut optic coher tomographi oct ideal modal intraop imag one possibl applic detect tumour invad tissu neurosurgeri eg complet resect glioblastoma ideal whole resect caviti scan howev oct limit small field view fov scan perpendicular tissu surfacemethod present new method use oct scan resect caviti neurosurg resect brain tumour main challeng creat map caviti scan perpendicular surfac merg threedimension d data intraop visual detect residu tumour cellsresult result indic propos method enabl creat highresolut map resect caviti overlay map microscop imag provid surgeon import inform locat residu tumour tissu underneath surfaceconclus demonstr possibl automat acquir oct imag complet resect caviti overlay microscopi imag depth inform oct lead improv detect residu tumour cell

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