【摘 要】
：
Background,Motivation and Objective High-frequency ultrasound(HFUS) imaging has been desired in many clinical applications,such as dermatology,ophthalmology,and intravascular imaging of the coronary a
【机 构】
：
Department of Electrical Engineering,Fu Jen Catholic University,New Taipei City,Taiwan
论文部分内容阅读
Background,Motivation and Objective High-frequency ultrasound(HFUS) imaging has been desired in many clinical applications,such as dermatology,ophthalmology,and intravascular imaging of the coronary arteries,which require higher image resolution.Transmit-beamformers of conventional ultrasound imaging system are typically implemented via field programmable gate arrays(FPGAs).However,owing to the limitations of FPGAs,the delay resolution of the chip is not good enough for meeting the requirements of HFUS imaging systems because the beamformer of HFUS imaging needs very small delay time for transmitting each scan line in real time.In addition,the size of the beamformer chip and the number of interconnection cables must be reduced for a small agile probe or portable ultrasound imaging system.Therefore,the purpose of this study is to design an all digital transmit-beamforming application-specific integrated circuit(ASIC) for achieving a high resolution delay time of array elements which can be directly integrated with the high-voltage pulser integrated circuit(IC) for HFUS imaging and portable ultrasound imaging system applications.
其他文献
Background,Motivation and Objective Sonoporation is essentially an act of acute disruption of the plasma membrane,and there is common belief that the perforation site would naturally be repaired over
Background,Motivation and Objective A direct and non-invasive measurement of kidney function could aid in early recognition of acute kidney injury(AKI) at bedside and may prevent severe kidney damage.
Background,Motivation and Objective In the mining industry,magnetite particles are separated from other solid particles using wet low-intensity magnetic separators.A suspension is pumped into the sepa
Background,Motivation and Objective Prostate cancer(PCa) is the most prevalent form of cancer in Western men,however reliable tools for detection and localization are lacking.
Background,Motivation and Objective Colorectal cancer(CRC) remains the third most popular cancer in US.CRC biopsy usually shows substantially increased angiogenesis,which is promoted by a number of pr
Background,Motivation and Objective The aim of this study is to provide analysis of robustness and accuracy of perfusion parameter estimations obtained by the bolus and burst(B&B) method with differen
Background,Motivation and Objective Ultrasound molecular imaging has been studied for pre-clinical applications including detection of cancer and cardiovascular disease.
Background,Motivation and Objective Targeted microbubbles(MBs) has been used in the molecular imaging and drug delivery system.Although it is important to understand the sensitivity of bubbles to the
Background,Motivation and Objective Bone is a connective tissue largely composed of collagen fibers and inorganic mineral hydroxyapatite.
Background,Motivation and Objective With the advent of high-frequency arrays,achieving micro-resolution ultrasound imaging at real-time frame rates is nowadays readily feasible.However,in using this t