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In recent decades, the use of three-dimensional ultrasound (3DUS) imaging of organs has been growing rapidly compared to its two-dimensional ultrasound (2DUS) type. The use of freehand technique in 3DUS system may help to improve the natural flexibility performance. To realize a 3DUS freehand imaging, a position tracking system which measures the US probe position in real time is added. The design,...
Ultrasound devices provide either diagnostic or therapeutic purpose in biomedical application. To avoid unwanted power exposure to the patient for safety concern but at the same time maintaining optimum diagnostic and therapeutic effect, ultrasound power meter is used to measure and calibrate the output power and intensity of the ultrasound machine. Most of the current ultrasound power meters are...
This work deals with the development of ultrasound power measurement system on Field Programmable Gate Array (FPGA) platform. Polyvinylidene Fluoride (PVDF) was employed to sense medical ultrasonic signal. PVDF film's behavior and its electro-acoustic model were observed. Signal conditioner circuit was then described. Next, a robust low-cost casing for PVDF sensor was built, followed by the proposal...
Accurate determination of gestational age is fundamental to fetal growth assessment, either clinically or by ultrasound evaluation. The antenatal measurement of the fetal biparietal diameter (BPD) by ultrasound has been used to predict fetal gestational age. The performance of conventional two-dimensional (2D) ultrasonograhpy (US) measurement and proposed Visualization toolkit, VTK programmable interactive...
Ultrasound power meter is widely used in health care, educational and industrial institutions. It is used to measure the power output of ultrasound machine for diagnostic, therapeutic and non-destructive testing purposes. The current ultrasound machine is high cost and does not have further data processing for analysis. In order to reduce the cost of data processing unit and enable further analysis,...
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