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System and methods for producing an image from a rotational intravascular ultrasound device

An ultrasonic equipment and image technology, applied in the directions of sound wave reradiation, radio wave measurement system, ultrasonic/sonic wave/infrasonic wave diagnosis, etc., can solve the problem of incomplete removal of distance side lobes

Active Publication Date: 2015-12-02
PHILIPS IMAGE GUIDED THERAPY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In practice, distance sidelobes are not completely removed due to nonlinear ultrasound propagation within tissue structures, motion artifacts, and other non-idealities

Method used

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  • System and methods for producing an image from a rotational intravascular ultrasound device
  • System and methods for producing an image from a rotational intravascular ultrasound device
  • System and methods for producing an image from a rotational intravascular ultrasound device

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Embodiment Construction

[0016] The present invention generally relates to systems and methods for generating images from a rotating intravascular ultrasound (IVUS) device. The systems and methods of the present invention are particularly useful for rotational IVUS. In a rotating IVUS catheter, a single transducer with a piezoelectric crystal is rotated rapidly (eg, approximately 1800 revolutions per minute) while the transducer is intermittently energized with electrical pulses. The excitation pulse causes the transducer to vibrate, which sends out a series of transmit pulses. Transmit pulses are sent at a frequency that allows time for the echo signal to be received. A sequence of transmitted pulses interspersed with received signals provides the ultrasound data needed to reconstruct a complete cross-sectional image of the vessel.

[0017] The general design and construction of rotary IVUS catheters are shown, for example, in U.S. Patent Nos. 4,794,931, 5,000,185, and 5,313,949 to Yock; U.S. Paten...

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Abstract

The invention generally relates systems and methods to for producing an image from a rotational intravascular ultrasound device.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit and priority of US Provisional Patent Application Serial No. 61 / 778,757, filed March 13, 2013, the entire contents of which are incorporated herein by reference. technical field [0003] The present application generally relates to systems and methods for generating images from rotating intravascular ultrasound devices. Background technique [0004] In ultrasound imaging, spatial resolution and penetration depth are important parameters for quantitatively evaluating image quality. In general, the wavelength at the ultrasound center frequency determines the spatial resolution, with resolution improving with increasing frequency. However, tissue attenuation typically increases as a linear function of frequency, even becoming non-linear at higher frequencies (eg, greater than 40 MHz) commonly used in intravascular ultrasound imaging applications. Although high-frequency ultrasound fac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
CPCA61B8/4461A61B8/12G01S15/8956G01S15/8961A61B8/0891A61B8/5207A61B8/5276
Inventor J·朴P·D·科尔
Owner PHILIPS IMAGE GUIDED THERAPY CORP