Allison H Payne

20200008783, Jan 9, 2020

Jun 17, 2019

16/442628

- Erlangen, DE
- Salt Lake City UT, US
Dennis L. Parker - Centerville UT, US
Henrik Odeen - Salt Lake City UT, US
Allison Payne - Salt Lake City UT, US

A61B 8/08
G01S 7/52
A61B 5/00

A method for mapping shear wave velocity in biological tissues includes using an ultrasound transducer to generate mechanical excitations at a plurality of locations in a region of interest. An MRI system is used to capture a phase image of each mechanical excitation, wherein motion encoding gradients (MEGs) of the MRI system encode a propagating shear wavefront caused by the mechanical excitation. A plurality of shear wave velocity maps is generated based on the phase images, wherein each shear wave velocity map depicts velocity between adjacent propagating shear wavefronts. The shear wave speed values are combined to generate a composite shear wave velocity map of the region of interest.

20190029650, Jan 31, 2019

Jan 10, 2017

16/070237

- Salt Lake City UT, US
Allison Payne - Salt Lake City UT, US
Joshua De Bever - Salt Lake City UT, US
Douglas Christensen - Salt Lake City UT, US

A61B 8/08
A61B 5/00
A61B 5/055
G01R 33/48
G01R 33/563

A technology is described for multipoint tissue elastic property measurement. An example method (700) 700 includes generating a treatment map (710) of an anatomical region that shows focal points within the anatomical region to be exposed to Focused Ultrasound (FUS) pulses; acquiring a reference MR-ARFI image () of the anatomical region containing the focal points using the treatment map; acquiring an active MR-ARFI image () for each of the focal points in the anatomical region during exposure of the focal points to the FUS pulses using the treatment map; interleaving the reference MR-ARFI image and active MR-ARFI images () to create a combined image of the anatomical region and the focal points; and calculating a tissue displacement measurement () for the focal points exposed to the simultaneous and/or rapidly interleaved FUS pulses using the combined image of the anatomical region and the focal points exposed to the simultaneous FUS pulses.

20170322274, Nov 9, 2017

Mar 20, 2017

15/463122

- Erlangen, DE
- Salt Lake City UT, US
Allison Payne - Salt Lake City UT, US
Bryant Svedin - West Jordan UT, US

G01R 33/48
G01R 33/48
G01R 33/561
G01R 33/58

A method for producing an image of a subject using a magnetic resonance imaging (MRI) system includes acquiring a series of echo signals by sampling k-space along radial lines that each pass through the center of k-space. Each projection of the radial lines is divided into multiple echoes and successive projections are spaced by a predetermined angular distance. The series of echo signals are reconstructed into a plurality of images, wherein each image corresponds to a distinct echo signal.

20150238781, Aug 27, 2015

May 11, 2015

14/709366

- Salt Lake City UT, US
Dennis L. PARKER - Centerville UT, US
Allison PAYNE - Salt Lake City UT, US

A61N 7/02

A method of treating hypertension in a mammal is described, including: by focused sound energy, heating at least one nerve at a surface of a renal artery in a mammal; during the heating and by magnetic resonance imaging, repeatedly determining thermal levels in each of first and second volumetric zones of a region that includes at least a portion of the surface, the second zone being adjacent to the first zone; after determining that an indicium of a thermal level in the first zone exceeds a first threshold, and upon determining that an indicium of a thermal level in the second zone exceeds a second threshold, ceasing the heating of the at least one nerve for at least three months; and as a result of the heating, lowering a blood pressure in the mammal.