Individual impedance-based radio-frequency heating temperature field prediction method and system
US12182484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2019 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Apr 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2119/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present application relates to the field of biomedical engineering. Disclosed are an individual impedance-based radio-frequency heating temperature field prediction method and system which greatly improve the rate and accuracy of temperature distribution prediction. The method of the present application comprises: creating a first region; obtaining a position of an ablation needle, and with the ablation needle as a center, creating a second region in the first region; keeping the electrical conductivity within the second region constant, and adjusting the electrical conductivity in the first region such that impedance between the ablation needle and an earth pole is consistent with real individual impedance actually measured by a treatment system; performing mesh division on a combination of the first region and the second region and performing coupling computation using a radio-frequency field model and a biological heat transfer model to obtain temperature field time-space information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.