High speed tracking of interventional devices using an MRI system
US6289233A · kind A · utility
68Cited by
13References
13Claims
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Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/374
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An MRI system acquires NMR tracking data from a tracking coil imbedded in a medical device which is guided by a physician using real time anatomic images produced from image data acquired by the MRI system. A Hadamard magnetic resonance tracking sequence is used to update the tracking coil location which is indicated on the anatomic image. The Hadamard sequence uses four different acquisition, but tracking coil location is updated after each acquisition, using the new acquisition and three previously acquired acquisitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.