Device and method for 3D real-time medical instrument tracking
US12349986B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 2, 2024 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jan 5, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/2065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and a magnetic resonance tomography unit for tracking a medical instrument are disclosed. In the method, a tracking volume is defined enclosing a predefined trajectory of the medical instrument. Two-dimensional (2D) projection images of the tracking volume in presence of the medical instrument are acquired with the magnetic resonance tomography unit from two different view angles. Reference 2D images for the two view angles are determined and a background of the 2D projection images is suppressed. Two sets of 2D coordinates of the medical instrument are extracted from the two 2D projection images and combined to a 3D coordinate set and output on a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.