Transmit mode coil detuning for MRI systems

Details Transmit mode coil detuning for MRI systems Transmit mode coil detuning for MRI systems

2005-02-01

2005-02-01

Arana, Louis (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S318000

Reexamination Certificate

active

06850067

ABSTRACT:
A detuning circuit for an MRI coil having a series tuning capacitor includes: a detuning inductor and a PIN diode in parallel communication with the tuning capacitor, where the tuning capacitor has a tuning inductor node and a PIN diode node; a first diode and a second diode in parallel communication with the PIN diode, where the first, second and PIN diodes are arranged with the same serial polarity and the first and second diodes have a common node; and a reactance in communication between the common node and the tuning inductor node. The circuit detunes the MRI coil in response to an MRI transmit pulse. A detuning circuit for an MRI coil having a series tuning capacitor includes a detuning inductor; and a detuning switch in parallel combination with a secondary tuning capacitor, the detuning inductor and the parallel combination being in parallel communication with the series tuning capacitor. The secondary tuning capacitor acts to reduce current during detuning of the MRI coil.

REFERENCES:
patent: 4620155 (1986-10-01), Edelstein
patent: 4788503 (1988-11-01), Van Heelsbergen
patent: 4825162 (1989-04-01), Roemer et al.
patent: 5317266 (1994-05-01), Meissner
patent: 5477146 (1995-12-01), Jones

Affiliated with

Also associated with

Rating

Transmit mode coil detuning for MRI systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmit mode coil detuning for MRI systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmit mode coil detuning for MRI systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3484887