Koninklijke Philips Corporation N.v.

Carolina Amador Carrascal

Francois Guy Gerard Marie Vignon

Seungsoo Kim

Sheng-Wen Huang

Hua Xie

Man Nguyen

Vijay Thakur Shamdasani

Jean-Luc Francois-Marie Robert

William Tao Shi

Jun Seob Shin

Faik Can Meral

Raghavendra Srinivasa Naidu

Man M Nguyen

Shyam Bharat

Claudia Errico

Marcin Arkadiusz Balicki

Grzegorz Andrzej Toporek

Haibo Wang

Systems and methods for triggering the acquisition of elastography measurements based on motion data are disclosed. Motion data may be acquired by Doppler mode imaging in some embodiments. The motion data may be used to generate a trigger signal. The trigger signal may be provided to a transmit controller. The transmit controller may cause an ultrasound transducer to acquire elastography measurements responsive to the trigger signal.

System and method for acquisition triggering for cardiac elastography

A location device is provided for determining the location of an acoustic sensor. A location process makes use of a plurality of transmit beams (wherein a beam is defined as a transmission from all transducers of an ultrasound array), with a frequency analysis to identify if there is a signal reflected from the acoustic sensor. A location is obtained from the plurality of frequency analyses.

Location device and system for locating an ultrasound acoustic sensor

The present disclosure describes systems and methods configured to determine shear wave velocity and tissue stiffness levels of thin tissue of finite size, also referred to as bounded tissue, via shear wave elastography. Systems can include an ultrasound transducer configured to acquire echoes responsive to pulses transmitted toward a tissue. Systems can also transmit a push pulse into the tissue for generating shear waves, and tracking pulses intersecting the shear waves. The system can also apply a directional filter to received echo data and generate directionally filtered shear wave data based on a dimension and angular orientation of the bounded target relative to the ultrasound transducer. The system can estimate velocities of the shear waves at different shear wave frequencies based on the filtered shear wave data and angular orientation relative to the transducer, and determine a tissue stiffness value independent of the shape or form of the tissue.

Intelligent guided wave elastography

In an ultrasound imaging system which produces synthetically transmit focused images, the multiline signals used to form image scanlines are analyzed for speed of sound variation, and a mapof this variation is generated. In a preferred implementation, the phase discrepancy of the received multilines caused by speed of sound variation in the medium is estimated in the angular spectrum domain for the receive angular spectrum. Once the phase is estimated for all locations in an image, the differential phase between two points at the same lateral location, but different depth, is computed. This differential phase is proportional to the local speed of sound between the two points. A color-coded two- or three-dimensional mapis produced from these speed of sound estimates and presented to the user.

Synthetic transmit focusing ultrasound system with speed of sound mapping

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Eindhoven, Netherlands

Carolina Amador Carrascal