Echo-doppler examination of the jugular vessel is a powerful tool for early diagnosis cardiovascular disorders that can be further related to central nervous system diseases. Unfortunately, ultrasound technique strongly operator-dependent, so quality scan, accuracy measurement, and therefore rapidity robustness reflect degree training. The paper presents development mechatronic simulation impro...

This brief proposes a field programmable gate array (FPGA) based real-time inference machine for A-mode ultrasonic echo pattern recognition. The proposed scheme can aid probe positioning of single-transducer ultrasound devices by detecting specific patterns on scanline. is combination support vector and finite state machine. utilizes minimal pre-processing feature extraction, considering nature...

The greyscale imaging performance of a total 17 preclinical transducer/scanner combinations were measured over period 10 years. These comprised nine single element transducers and eight array with nominal central frequencies ranging between 15 55 MHz, from four commercially-available ultrasound scanners. Performance was assessed using figure merit, the resolution integral, measurements acquired...

PURPOSE Currently, no imaging modality is used routinely to assess tumor responses to radiotherapy within hours to days after the delivery of treatment. In this study, we show the application of quantitative ultrasound methods to characterize tumor responses to cancer radiotherapy in vivo, as early as 24 hours after treatment administration. EXPERIMENTAL DESIGN Three mouse models of head and ...

this study was carried out to investigate the effect of selection on the reduction of fat-tail size in lori-bakhtiari lambs. the study lasted for five years at the development and breeding center of lori-bakhtiari sheep station. estimation of fat-tail weight, using external fat-tail dimensions was obtained from regression procedure at 6 month age. soft tissue depth at the point 12 cm from the m...

Ultrasonic imaging and tissue characterization is a noninvasive technique widely used in medicine for many years to assess body conditions. However, the expertise required to operate the equipment and interpret the results is not always available. The medical ultrasonography project is developing a system concept for a remotely steerable, multibeam ultrasonic scanner that can be operated by ski...