King H Ho

US Patent:

20190150764, May 23, 2019

Filed:

May 2, 2017

Appl. No.:

16/098482

Inventors:

- Oakland CA, US
King Chung Ho - Oakland CA, US
Fabien Scalzo - Oakland CA, US

International Classification:

A61B 5/026
A61B 5/0295
A61B 5/00
A61B 5/0285
G06K 9/66
G06T 7/00
G16H 30/40
G16H 15/00

Abstract:

A system and method for estimating perfusion parameters using medical imaging is provided. In one aspect, the method includes receiving a perfusion imaging dataset acquired from a subject using an imaging system, and assembling for a selected voxel in the perfusion imaging dataset a perfusion patch that extends in at least two spatial dimensions around the selected voxel and time. The method also includes correlating the perfusion patch with an arterial input function (AIF) patch corresponding to the selected voxel, and estimating at least one perfusion parameter for the selected voxel by propagating the perfusion patch and AIF patch through a trained convolutional neural network (CNN) that is configured to receive a pair of inputs. The method further includes generating a report indicative of the at least one perfusion parameter estimated.

US Patent:

20180374213, Dec 27, 2018

Filed:

Dec 15, 2016

Appl. No.:

16/062159

Inventors:

- Oakland CA, US
King Chung Ho - Oakland CA, US
Fabien Scalzo - Oakland CA, US

International Classification:

G06T 7/00
G06N 3/04
A61B 5/026
G06N 5/04

Abstract:

Systems and methods for analyzing perfusion-weighted medical imaging using deep neural networks are provided. In some aspects, a method includes receiving perfusion-weighted imaging data acquired from a subject using a magnetic resonance (“MR”) imaging system and modeling at least one voxel associated with the perfusion-weighted imaging data using a four-dimensional (“4D”) convolutional neural network. The method also includes extracting spatio-temporal features for each modeled voxel and estimating at least one perfusion parameter for each modeled voxel based on the extracted spatio-temporal features. The method further includes generating a report using the at least one perfusion parameter indicating perfusion in the subject.