Multiple-echo angiography with enhanced signal-to-noise ratio

Details Multiple-echo angiography with enhanced signal-to-noise ratio Multiple-echo angiography with enhanced signal-to-noise ratio

1990-06-25

1991-08-13

Smith, Ruth S.

Surgery

Truss

Pad

324306, A61B 555

Patent

active

050387847

ABSTRACT:
Several sequences of radio-frequency and magnetic field gradients are presented for obtaining from a sample multiple response echo signals from which to obtain a plurality of independent angiograms, which can be combined or separately analyzed to provide more information than an individual angiogram, but in substantially the same amount of time as a single angiogram. For example, a series of angiograms, each with a different projection axis, can be obtained in the time required to obtain a single angiogram using a single echo method. If the view angle of each echo is the same, then the acquired angiograms can be added to enhance the signal-to-noise ratio. Another pulse sequence simultaneously obtains two or more angiograms, each sensitive to one of two orthogonal flow components of the overall blood flow; the angiograms are then added to give an angiogram which is sensitive to total flow in all directions. Multiple velocity ranges are accommodated in a fourth sequence form.

REFERENCES:
patent: 4443760 (1984-04-01), Edelstein et al.
patent: 4458203 (1984-07-01), Young
patent: 4568880 (1986-02-01), Sugiomoto
patent: 4595879 (1986-06-01), Lent et al.
patent: 4602641 (1986-07-01), Feinberg
patent: 4654591 (1987-03-01), Moran
patent: 4714081 (1987-12-01), Dumoulin et al.
patent: 4740748 (1988-04-01), Rzedzian
patent: 4777957 (1988-10-01), Wehrli et al.

Affiliated with

Also associated with

Rating

Multiple-echo angiography with enhanced signal-to-noise ratio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple-echo angiography with enhanced signal-to-noise ratio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple-echo angiography with enhanced signal-to-noise ratio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1520828