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International journal of imaging systems and technology (Print), 2020
Ultrasound imaging is an important modality used in medical imaging. One of the significant stages in the ultrasound imaging is the beamforming process. This article proposes a new technique for reducing the overall computational time of adaptive linear ...
Sajjad Afrakhteh, H. Behnam
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Ultrasound imaging is an important modality used in medical imaging. One of the significant stages in the ultrasound imaging is the beamforming process. This article proposes a new technique for reducing the overall computational time of adaptive linear ...
Sajjad Afrakhteh, H. Behnam
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Construction of high frame rate images with Fourier transform
The Journal of the Acoustical Society of America, 2002Traditionally, images are constructed with a delay-and-sum method that adjusts the phases of received signals (echoes) scattered from the same point in space so that they are summed in phase. Recently, the relationship between the delay-and-sum method and the Fourier transform is investigated [Jian-yu Lu, Anjun Liu, and Hu Peng, ‘‘High frame rate and ...
Hu Peng, Jian-yu Lu
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High Frame Rate Vector Flow Imaging: Development as a New Diagnostic Mode on a Clinical Scanner
IUS, 2018In this paper, development of high frame rate vector flow imaging (HFR-VFI) on a clinical scanner is presented. Four tough problems encountered during the development, in terms of (i) parallel calculation and streamline working process, (ii) data ...
Yigang Du +4 more
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Ultrasound Color Flow Imaging At High Frame Rates
The Journal of the Acoustical Society of America, 2011A method is provided to improve the frame-rate in color-flow ultrasound imaging using simultaneous spatially-distinct transmit beams with one or more frequency bands per transmit beam. Pulses of different center frequencies are used simultaneously in different (lateral and/or elevational) directions, thereby reducing the scanning time and improving the
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Very-High Frame-Rate Burst-Image Sensor
1998A 360 x 360-element very high frame rate (VHFR) burst image sensor captures images at maximum frame rate up to 106 frame/s. This is accomplished by continuously storing the last 30 image frames at the pixel locations. The 360 x 360 VHFR imager having a2 x 2cm2 chip is designed in the form of 4 quadrants each with 180 x 180 pixels.
Walter F. Kosonocky +8 more
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Design and construction of a high frame rate imaging system
The Journal of the Acoustical Society of America, 2002A new high frame rate imaging method has been developed recently [Jian-yu Lu, ‘‘2D and 3D high frame rate imaging with limited diffraction beams,’’ IEEE Trans. Ultrason. Ferroelectr. Freq. Control 44, 839–856 (1997)]. This method may have a clinical application for imaging of fast moving objects such as human hearts, velocity vector imaging, and low ...
Jing Wang +3 more
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High Frame-Rate Imager With All-Parallel Outputs
SPIE Proceedings, 1989An all-parallel output CCD imager was developed for high frame-rate imaging applications. This imager was designed for 5000 frames per second but has been operated at much higher frame rates. The all-parallel output design was chosen to keep the pixel rate for each output low and thus obtain low-noise performance.
Larry D. Riley, Harry H. Marsh
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The impact of aberration on high frame rate cardiac B-mode imaging
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2007In echocardiography, especially in 3D echocardiography, achieving high frame rates is a major challenge. A suggested solution is parallel receive beamforming. Without any compensation, this approach is known to produce block-like artifacts, where each block corresponds to one parallel receive group.
Tore, Bjåstad +2 more
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High frame rate imaging of microbubble contrast agents
The Journal of the Acoustical Society of America, 2017The advent of microbubble contrast agents has transformed the way blood flow and tissue perfusion can be imaged using ultrasound in cardiovascular and oncological applications. The high echogenicity offered by the microbubbles greatly enhances ultrasound echoes from within the blood, making imaging of micro-vascular flow and tissue perfusion possible ...
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Effects of masks on reconstruction of high-frame-rate images
2012 IEEE International Ultrasonics Symposium, 2012A set of strip masks have been developed for high frame rate imaging with steered plane wave (SPW), steered diverging beam (SDB), and limited-diffraction beam (LDB) transmissions. These masks enhance image contrasts significantly. In addition, an image mask was developed for reconstructed images.
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