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Extended field of view ultrasonic imaging with guided EFOV scanning

An imaging system and ultrasonic diagnostic technology, applied in the field of medical diagnostic ultrasonic systems, can solve problems such as expensive

Active Publication Date: 2011-05-04
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach is limited in that it can only estimate probe motion in a pre-arranged direction set by the orientation of the tracking array
Furthermore, such systems are expensive as multiple arrays must be fabricated in a single probe and operated simultaneously

Method used

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  • Extended field of view ultrasonic imaging with guided EFOV scanning
  • Extended field of view ultrasonic imaging with guided EFOV scanning
  • Extended field of view ultrasonic imaging with guided EFOV scanning

Examples

Experimental program
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Embodiment Construction

[0022] first reference figure 1 , which shows in block diagram form an ultrasound system constructed in accordance with the principles of the present invention. The probe is coupled to a system comprising a two-dimensional array transducer 500 and a microbeamformer 502 . The microbeamformer contains circuitry that controls the signals applied to groups of elements ("slices") of the array transducer 500 and performs some processing on the echo signals received by the elements of each group. Microbeamforming in the probe advantageously reduces the number of conductors in the cable 503 between the probe and the ultrasound system, as described in US Patent 5,997,479 (Savord et al.) and US Patent 6,436,048 (Pesque).

[0023] The probe is coupled to a scanner 310 of the ultrasound system. The scanner includes a beamforming controller 312 that responds to the user controls 36 and provides control signals to the microbeamformer 502 to direct the timing, frequency, direction and focu...

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PUM

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Abstract

An ultrasonic diagnostic imaging system produces an extended field of view (EFOV) image. A 3D imaging probe is moved along the skin of a patient above the anatomy which is to be included in the EFOV image. As the probe is moved, images are acquired from a plurality of differently oriented image planes such as a sagittal plane and a transverse plane. As the probe is moved the image data of successive planes of one of the orientations is compared to estimate the motion of the probe. These motion estimates are used to position a succession of images acquired in one of the orientations accurately with respect to each other in an EFOV display format. The motion estimates are also used to display a graphic on the display screen which indicates the progress of the scan to the user as the probe is being moved. The progress may be indicated in terms of probe velocity, distance traveled, or the path traversed by the moving probe.

Description

technical field [0001] The present invention relates to medical diagnostic ultrasound systems, and more particularly, to ultrasound systems that perform guided panoramic or extended field of view (EFOV) imaging. Background technique [0002] Two-dimensional extended field of view (EFOV) or panoramic ultrasound imaging is a useful tool for visualizing large or long structures (eg, femoral artery, carotid artery) that cannot be fully seen with conventional ultrasound imaging. In two-dimensional (2D) panoramic imaging, as described in US Patent 6,442,289 (Olsson et al.), a probe with a 1D ultrasound transducer array is manually swept substantially along the plane (azimuth dimension) of the 2D image to acquire a large number of 2D image. The acquired overlapping images are combined to produce a panoramic image using probe motion estimation, which is typically measured by evaluating the registration between consecutive overlapping images. Very long images can be advantageously ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/52
CPCG01S7/52073G01S7/52074G01S15/8993A61B8/483A61B8/4245G01S7/52065
Inventor Y·余J·杰戈J-M·钟R·恩特金L·J·奥尔森
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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