Medical imaging based on calibrated post contrast timing

US11896407B2 · kind B2 · utility

Assignee

• The Trustees of Columbia University in the City of New York · US

Inventors

• Jingchen Ma · Chongqing, CN
• Laurent Dercle · New York, US
• Binsheng Zhao · Elmont, US
• Lin Lu · Tangxia, CN
• Lawrence H. Schwartz · New York, US

Key dates

• Filing date: May 21, 2021
• Grant date: Feb 13, 2024
• Expiry date: May 29, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30101
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Techniques measuring post contrast phase include collecting 3D medical imagery of a subject after injection with a contrast agent. A first set of slices is obtained in which each includes a first anatomical feature selected from a portal vein, aorta, inferior vena cava, liver, spleen or renal cortex. A second set of slices is obtained in which each includes a different second anatomical feature. A first image region is obtained from the first set and a different second image region from the second set. A trained convolutional neural network is configured to input the first image region to a first plurality of convolutional hidden layers and the second image region to a second plurality of convolutional hidden layers and output from both to a fully connected hidden layer that outputs a post contrast phase. Output data is presented based on the post contrast phase.