MRI RF coil using zero-pitch solenoidal winding

Details MRI RF coil using zero-pitch solenoidal winding MRI RF coil using zero-pitch solenoidal winding

1992-09-02

1995-01-10

Cohen, Lee S.

Surgery

Truss

Pad

1286531, 334318, 334322, 600 15, A61B 5055

Patent

active

053797671

ABSTRACT:
A quadrature detection (QD) head coil assembly for use in magnetic resonance imaging (MRI) having a pair of orthogonally situated zero-pitch solenoidal windings is disclosed. The turns of each winding are serially connected along the solenoid surface in a predetermined axially-extending area by using dog leg connectors. Return coil connections (i.e., an RF connection between the first and last turn of each coil) is effected substantially adjacent to the dog leg interconnections so as to minimize the area of any equivalent return loop and thus to minimize the magnitude of any inter-coil coupling via such return loops. To further minimize possible inter-coil coupling, the return loops for each of the quadrature detection coils are preferably oriented so as to primarily couple to magnetic fields that are orthogonal to the main field of both the QD coils. The use of zero- pitch turfs in each solenoidal coil winding also substantially reduces possible inter-coil coupling.

REFERENCES:
patent: 4581580 (1986-04-01), Keim
patent: 4616181 (1986-10-01), Kemner et al.
patent: 4634980 (1987-01-01), Misic et al.
patent: 4636728 (1987-01-01), Compton et al.
patent: 4695801 (1987-09-01), Arakawa et al.
patent: 4737716 (1988-04-01), Roemer et al.
patent: 4752738 (1988-06-01), Patrick et al.
patent: 4757804 (1988-07-01), Griffith et al.
patent: 4774468 (1988-09-01), Bydder
patent: 4783641 (1988-11-01), Hayes et al.
patent: 4875013 (1989-10-01), Murakami et al.
patent: 4887038 (1989-12-01), Votruba et al.
patent: 4949044 (1990-08-01), Starewicz
patent: 4956609 (1990-09-01), Miyajima
patent: 5023555 (1991-06-01), Ehnholm
patent: 5084676 (1992-01-01), Saho et al.
patent: 5107216 (1992-04-01), Yabusaki et al.
patent: 5116304 (1992-05-01), Cadwell
patent: 5197940 (1993-03-01), Sievert et al.
Hitachi-The Advantages of 0.2 Tesla Vertical-Field Permanent Magnet Technology-Hitachi Medical Systems American, Inc.-11 pages.

Affiliated with

Also associated with

Rating

MRI RF coil using zero-pitch solenoidal winding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with MRI RF coil using zero-pitch solenoidal winding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MRI RF coil using zero-pitch solenoidal winding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-844431