Nuclear magnetic resonance imaging system with noise reduced int

Details Nuclear magnetic resonance imaging system with noise reduced int Nuclear magnetic resonance imaging system with noise reduced int

1993-04-28

1995-01-24

Wieder, Kenneth A.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324300, 381 94, G01R 3320

Patent

active

053845374

ABSTRACT:
A nuclear magnetic resonance imaging system with the intercom facility in which the disturbing and potentially harmful large noise due to the application of the reading gradient field pulses can be reduced at the exterior of the examination room. In the system, a connection between the microphone and the loudspeaker for transmitting the sounds generated inside the examination room to the exterior of the examination room is controlled according to the pulse sequence specified by the sequence controller such that the microphone and the loudspeaker are disconnected whenever the application of the reading gradient field pulse takes place. Alternatively, the system incorporates a notch filter connected between the microphone and the loudspeaker for transmitting the sounds generated inside the examination room to the exterior of the examination room, where the notch filter attenuates the component of the sounds having a central frequency equal to a repetition frequency of repeatedly applied reading gradient field pulses in the pulse sequence specified by the sequence controller.

REFERENCES:
patent: 4689565 (1987-08-01), Kemner et al.
patent: 4696030 (1987-09-01), Egozi
patent: 4933981 (1990-06-01), Lederer
patent: 4981137 (1991-01-01), Kondo et al.
patent: 5133017 (1992-07-01), Cain et al.
patent: 5313945 (1994-05-01), Friedlander

Affiliated with

Also associated with

Rating

Nuclear magnetic resonance imaging system with noise reduced int does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nuclear magnetic resonance imaging system with noise reduced int, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear magnetic resonance imaging system with noise reduced int will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1470215