Xiaoyu Guo

US Patent:

20140024928, Jan 23, 2014

Filed:

Jul 16, 2013

Appl. No.:

13/943649

Inventors:

Xiaoyu Guo - Baltimore MD, US
Ralph Etienne-Cummings - Baltimore MD, US

International Classification:

A61B 8/08
A61B 5/00
A61M 25/00
A61B 1/00
A61B 18/00
A61B 8/00
A61B 8/14

US Classification:

600424, 600459, 600439

Abstract:

A closed-loop ultrasound system includes an ultrasound receiver, an ultrasound transmitter at least one of integral with or at a predetermined position relative to the ultrasound receiver, and a trigger circuit configured to receive detection signals from the ultrasound receiver and to provide trigger signals to the ultrasound transmitter in response to received detection signals. The ultrasound transmitter is configured to transmit ultrasound energy in response to the trigger signals.

US Patent:

20170188991, Jul 6, 2017

Filed:

Mar 17, 2017

Appl. No.:

15/462616

Inventors:

- Baltimore MD, US
Xiaoyu Guo - Baltimore MD, US
Ralph Etienne-Cummings - Baltimore MD, US
Pezhman Foroughi - Baltimore MD, US

Assignee:

The Johns Hopkins University - Baltimore MD

International Classification:

A61B 8/08
A61B 10/02
A61B 18/14
A61B 17/43
A61B 8/14
A61B 5/00

Abstract:

A closed-loop ultrasound system includes an ultrasound receiver, an ultrasound transmitter at least one of integral with or at a predetermined position relative to the ultrasound receiver, and a trigger circuit configured to receive detection signals from the ultrasound receiver and to provide trigger signals to the ultrasound transmitter in response to received detection signals. The ultrasound transmitter is configured to transmit ultrasound energy in response to the trigger signals.

US Patent:

20160235046, Aug 18, 2016

Filed:

Jan 29, 2016

Appl. No.:

15/009920

Inventors:

- Baltimore MD, US
Emad Boctor - Baltimore MD, US
Xiaoyu Guo - Baltimore MD, US

International Classification:

A01K 85/01
A01K 99/00
G01S 7/00
G01S 7/56
G01S 15/96
G01S 15/89

Abstract:

An underwater imaging system is disclosed. A boat sonar transducer is configured to transmit and receive sonar signals and generate an image of water and surfaces using received sonar signals. An active echo system is configured to be positioned within the water to remotely communicate with the boat sonar transducer. The active echo system includes an ultrasound transducer configured to detect sonar signals transmitted by the boat sonar transducer and transmit an active echo pulse, or a series of active echo pulses, back to the boat sonar transducer. A microprocessor is configured to drive the ultrasound transducer to transmit the active echo pulse, or series of active echo pulses, back to the boat sonar transducer in response to the ultrasound transducer detecting sonar signals transmitted by the boat sonar transducer.

US Patent:

20160228090, Aug 11, 2016

Filed:

Feb 9, 2016

Appl. No.:

15/019696

Inventors:

- Baltimore MD, US
Alexis CHENG - Baltimore MD, US
Xiaoyu GUO - Baltimore MD, US
Haichong K. ZHANG - Baltimore MD, US
Russell H. TAYLOR - Severna Park MD, US

Assignee:

The Johns Hopkins University - Baltimore MD

International Classification:

A61B 8/00
A61B 8/08
A61B 5/00

Abstract:

According to some embodiments of the invention, an ultrasound imaging system having real-time tracking and image registration includes a fiducial-marker system comprising an ultrasound transmitter structured to provide a localized ultrasound pulse at an optically observable localized spot on a body of interest. The system further includes an optical imaging system, a two-dimensional ultrasound imaging system, an optical image processing system, and an ultrasound image processing system The ultrasound imaging system further includes a registration system configured to communicate with the optical image processing system and the ultrasound image processing system to receive information, the registration system being further configured to determine a coordinate transformation that registers the optical image with the two-dimensional ultrasound image based at least partially on information concerning the spatial locations determined for the combined ultrasound and optical fiducial marker observed in the optical image and in the two-dimensional ultrasound image.

US Patent:

20160000516, Jan 7, 2016

Filed:

Jun 9, 2015

Appl. No.:

14/734778

Inventors:

- Baltimore MD, US
Emad M. Boctor - Baltimore MD, US
Xiaoyu Guo - Baltimore MD, US

International Classification:

A61B 19/00

Abstract:

A virtual rigid body optical tracking system includes a virtual rigid body generator for projecting a virtual rigid body, wherein the virtual rigid body forms a pattern of light on a surface. The virtual rigid body optical tracking system includes an optical detection system for detecting the pattern of light, and a data processing system in communication with the optical detection system. The data processing system is configured to determine a position of the virtual rigid body generator based on the detected pattern of light.

US Patent:

20150150464, Jun 4, 2015

Filed:

Dec 4, 2014

Appl. No.:

14/561087

Inventors:

Emad Boctor - Baltimore MD, US
Behnoosh Tavakoli - Baltimore MD, US
Hyun-Jae Kang - Baltimore MD, US
Xiaoyu Guo - Baltimore MD, US
Jin Kang - Baltimore MD, US

International Classification:

A61B 5/00
A61B 8/08
A61B 19/00
A61B 5/01

Abstract:

Systems and methods for real-time tracking of photoacoustic sensing are provided. In one aspect, a method for performing in vivo analysis of a subject is provided. The method includes directing an electromagnetic excitation toward a subject to be analyzed, and acquiring, with an ultrasound probe, data about resultant waves caused by the electromagnetic excitation. The method also includes processing the acquired data to extract information related to properties of tissues in the subject, and comparing the information related to the properties of tissues in the subject using a set of criteria. The method also includes generating a report about a condition of the subject based on the comparison of the information related to properties of the tissues in the subject.