3D Tumor Specimen Margin Mapping for Intraoperative Communication
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Solution Overview
Problem
Current methods for intraoperative margin mapping and communication between surgeons and pathologists in cancer surgery are inefficient, leading to increased anesthesia time, potential miscommunications, and inadequate documentation of resection margins, especially in complex cases.
Innovation Solution
A system utilizing 3D cameras to scan tumor specimens and surgical defects, enabling interactive visualization and annotation, allowing for real-time communication and documentation of margin status between the operating room and pathology lab through customizable user interfaces and nonrigid registration of coordinate systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional verbal communication and two-dimensional diagrams are used for margin mapping, then the communication process is simple, but communication clarity and precision are insufficient especially in complex multi-planar resections
Solution Approach 1:
The patent transitions from two-dimensional diagrams to three-dimensional visual representations of surgical specimens and defects. The 3D camera system captures spatial coordinates and generates volumetric models that preserve anatomical relationships, allowing surgeons and pathologists to communicate margin locations with precise spatial context rather than abstract 2D projections.
Solution Approach 2:
The patent introduces a 3D visualization system as an intermediary between the surgeon's resection and the pathologist's examination. The coordinate mapping system acts as a mediator that translates surgical defect coordinates to specimen coordinates, enabling accurate correspondence without direct physical comparison of the specimens.
2Reliability
If surgeons leave the operating room to review specimens in the frozen section lab, then direct specimen examination is possible, but anesthesia time increases by 20-40 minutes
Solution Approach 1:
The patent establishes a real-time feedback loop between the operating room and frozen section lab through videoconferencing. The pathologist can view the 3D specimen representation, identify positive margins, and immediately communicate findings back to the surgeon, who can then perform supplemental resections without leaving the operating room. This iterative feedback process maintains diagnostic reliability while eliminating repeated anesthesia cycles.
Solution Approach 2:
The patent creates a digital 3D copy of the surgical specimen that can be viewed remotely in real-time. Instead of requiring the surgeon to physically transport and examine the actual specimen in the pathology lab, a accurate 3D representation is transmitted via videoconference, allowing the surgeon to assess margin status from the operating room while maintaining the same diagnostic information.
3Loss of information
If detailed documentation of surgical defects and supplemental margins is implemented, then treatment planning accuracy improves, but documentation complexity and time increase
Solution Approach 1:
The patent performs preliminary 3D scanning and coordinate system establishment immediately after resection, before the specimen is processed. The surgical defect is captured in 3D space with annotated landmarks, creating a reference framework that automatically guides subsequent margin mapping. This preliminary action ensures all spatial information is captured upfront, eliminating the need for complex retrospective documentation.
Solution Approach 2:
The patent transforms qualitative surgical observations into quantitative 3D spatial parameters. Instead of descriptive notes about margin locations, the system records precise coordinates, distances, and spatial relationships in the 3D model. This parameter transformation enables automated tracking of supplemental margins and generates treatment planning data without manual documentation effort.
Data Source
AI summary
Systems and methods for localizing close or positive margins in a tumor specimen from a subject are provided. A three-dimensional representation of the specimen is obtained, where the representation comprises more than 1000 three-dimensional points that define a boundary of the specimen. A plurality of annotations to the representation is received, including a first subset of annotations indicating an orientation of the representation relative to the subject, a second subset of annotations indicating a plurality of tissue sections from the specimen, and a third subset of annotations providing a margin status for respective tissue sections in the plurality of tissue sections, where the margin status indicates close or positive margins based upon pathological analysis of the respective tissue sections. A composite three-dimensional representation of the tumor specimen is formed by modifying the first three-dimensional representation of the tumor specimen to include the plurality of annotations.