Scholarly Works - Conferences
Conference
Computing in Cardiology
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January 1, 2025
Cardiac dyssynchrony, particularly in patients with Left Bundle Branch Block (LBBB), poses significant challenges in clinical diagnostics. This study investigates the curvature of the interventricular septum (IVS) throughout the cardiac cycle, as a potenti ...
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Conference
IEEE International Ultrasonics Symposium Ius
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October 31, 2017
High speed ultrasound imaging is a new imaging method particularly applicable to cardiology. At Duke we have developed a real time high speed imaging system capable of producing up to 2500 images per second while maintaining the live imaging feature so ess ...
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Conference
Computing in Cardiology
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March 1, 2016
This study aims to describe a feature tracking algorithm tailored to estimate circumferential strain on high frame rate ultrasound (HFR-US) images. The algorithm used the Hungarian assignment algorithm for tracking a basic feature descriptor. A second orde ...
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IEEE International Ultrasonics Symposium Ius
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October 20, 2014
A new method of acquiring and displaying high speed ultrasound images has been developed. To extract flow information from the low intensity reflections of moving blood in these high frame rate images, difference imaging was found to be a particularly appl ...
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2003 Southwest Symposium on Mixed Signal Design Ssmsd 2003
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January 1, 2003
In this paper we present a 64-channel ultrasound preamplifier device that is used to amplify and filter pulsed echo transducer signals sourced from a real time three dimensional (RT3DU) non-invasive ultrasound system. Schematics, simulation data, and layou ...
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Proceedings International Symposium on Biomedical Imaging
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January 1, 2002
Line acquisition speed is fundamental to enhancing the field of view and temporal resolution of real time ultrasonic volumetric (RT3D) imaging systems. A two-dimensional transducer array design is presented which, based on simulations, will permit multiple ...
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Proceedings of SPIE the International Society for Optical Engineering
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December 1, 1997
We describe an active contour based on the elliptical Fourier series, and its application to matrix-array ultrasound. Matrix-array ultrasound is a new medical imaging modality that scans a 3D-volume electronically without physically moving the transducer, ...
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Proceedings IEEE Ultrasonics Symposium
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January 1, 1991
A novel real-time angular scatter imaging system has been developed for improved tissue contrast between neighboring tissue layers in diagnostic ultrasound images. The system uses one phased array transducer in transmit, and a second, separate phased array ...
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Proceedings IEEE Ultrasonics Symposium
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January 1, 1991
The design, fabrication and evaluation of twodimensional transducer arrays are described for medical ultrasound imaging. A 4 x 32, 2.8 MHz array was developed to use new signal processing techniques for improved B-scan imaging including elevation focusing, ...
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Proceedings of SPIE the International Society for Optical Engineering
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February 1, 1975
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January 1, 1974
A new ultrasound imaging system which removes or substantially reduces many previous limitations has been developed. This imaging system is based on phased array principles rather than the usual mechanical positioning to scan the ultrasound beam through th ...
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