Method and system for trackerless image guided soft tissue surgery and applications of same
US10743941B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2016 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | May 2, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3983
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and systems for performing trackerless image guided soft tissue surgery. For a patient in need of brain surgery, pre-operative preparation for a patient is performed by generating a three-dimensional textured point cloud (TPC) for the patient's scalp surface, and registering the first three-dimensional TPC to a magnetic resonance (MR) model of the brain. During the surgery, an intra-operative cortical surface registration to the MR model is performed for the MR-to-cortical surface alignment. Then shift measurement and compensation to the MR model is performed by: performing absolute deformation measurement of the brain based on the MR model with the cortical surface registration, and obtaining shift correction to the MR model using the absolute deformation measurements. The shift correction may be used for adjusting an image guidance system (IGS) in the brain surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.