RF coil for magnetic resonance imaging having three separate non-overlapping coils electrically isolated from each other
US6348794B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/365
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An RF coil which is a coil array using three pieces or more of coils, including three pieces of coils 1, 2 and 3 or more arrayed proximately to each other, coil intermediary connecting capacitors 4, 5 and 6 respectively interposed in the coils, parallel connection lines 10 through 13 for connecting the coil intermediary connecting capacitors 4, 5 and 6 in parallel and neutralizing capacitors 14 through 17 interposed in the parallel connection lines 10 through 13 with an object of dispensing with mutual interference among the coils without overlapping the adjacent coils, in which by transmitted voltage transmitted from both ends of the coil intermediary connecting capacitor (4) of the one coil (1)to both ends of the coil intermediary connecting capacitors (5, 6)of the other coils (2, 3)via the parallel connection lines (10 through 13)and the neutralizing capacitors (14 through 17), induced voltage generated by the one coil (1) across the both ends of the coil intermediary connecting capacitors (5, 6)of the other coils (2, 3) via mutual inductance, is canceled, an MRI apparatus as well as an NMR signal receiving method using the RF coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.