Systems and methods for determining intraoperative spinal orientation
Assignee7D Surgical Ulc
InventorsMichael K. K. Leung, Adrian Mariampillai, Beau Anthony Standish, Peter Siegler, Victor X. D. Yang
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Abstract
Systems and methods are disclosed whereby a surface detection system is employed to obtain intraoperative surface data characterizing an exposed surface of the spine. In some embodiments, this intraoperative surface data is registered to segmented surface data obtained from volumetric data of the spine in order to assess the intraoperative orientation of the spine and provide feedback associated with the intraoperative orientation of the spine. The feedback may characterize the intraoperative spinal orientation as a change relative to the preoperative orientation.
Claims35
A method of determining an intraoperative orientation of a spine, the method comprising:
- processing volumetric image data pertaining to a spine to generate multi-level surface data characterizing a bone surface of the spine;
- processing the multi-level surface data to generate segmented surface data on a per-level basis for each level of a plurality of spinal levels;
- for each spinal level of the plurality of spinal levels, performing a surface-to-surface registration between the segmented surface data associated with said each spinal level and intraoperative surface data characterizing surface regions associated with each spinal level of the plurality of spinal levels, thereby obtaining a registration transform associated with said each spinal level;
- and
- employing the registration transforms associated with the plurality of spinal levels to generate and display one or more parameters numerically quantifying a relative intraoperative orientation and/or relative intraoperative position of at least one of the spinal levels.
A system for determining an intraoperative orientation of a spine, the system comprising:
- a surface detection subsystem;
- and
- computer hardware operatively coupled to said surface detection subsystem, wherein said computer hardware comprises memory coupled with one or more processors to store instructions, which when executed by the one or more processors, causes the one or more processors to perform operations comprising:
- processing volumetric image data pertaining to a spine to generate multi-level surface data characterizing a bone surface of the spine;
- processing the multi-level surface data to generate segmented surface data on a per-level basis for each level of a plurality of spinal levels;
- controlling said surface detection subsystem to intraoperatively detect intraoperative surface data characterizing surface regions associated with each spinal level of the plurality of spinal levels;
- for each spinal level of the plurality of spinal levels, performing a surface-to-surface registration between the segmented surface data associated with said each spinal level and the intraoperative surface data, thereby obtaining a registration transform associated with said each spinal level;
- and
- employing the registration transforms associated with the plurality of spinal levels to generate and display one or more parameters numerically quantifying a relative intraoperative orientation and/or relative intraoperative position of at least one of the spinal levels.
Dependencies are inferred from the claim text.