Abstract
This paper describes ultrasonic image registration for multi-frequency analysis. The goal of our research is the portable and real time brain diagnosis under the thick-skull. The choice of ultrasonic frequency is a trade-off between spatial image resolution and imaging depth. This study shows the usability of data synthesis by employing two different frequency ultrasounds. In the first part of this study, using Fast Fourier Transform, we conclude that the synthesized image was produced from two ultrasonic images of individual objects. The purpose of the second approach of the data synthesis is to investigate three methods of ultrasonic imaging. This approach is particular interest for the design of further study intending to visualize any defects by ultrasonic methods. As the results, the synthesized image with Wavelet transform has higher efficiency than the other synthesized ones for the bone and the sulcus. In summary, this study indicates that the ultrasonic synthesized image is useful to visualize the imitated brain area. This observation is encouraging for further studies of evaluating brain for patients.
Highlights
Ultrasound has been used to image the human body and has become one of the most widely used diagnostic tools in modern medicine
This study shows the usability of data synthesis by employing two different frequency ultrasounds
The rate of FP and FN is approximate 5% or less. Judging from this figure, it is indicated that the synthesizing method using the Wavelet transform is superior to the other methods
Summary
Ultrasound has been used to image the human body and has become one of the most widely used diagnostic tools in modern medicine. In Reference [4], the transcranial sonography has been proposed using two linear array probes These ultrasonic array probes consist of 128 elements. It is difficult to transmit ultrasound from the random position because the two array probes are set up on both sides of human head. We proposed an imaging system of the skull and brain surface using a 1.0 MHz single ultrasonic probe [6,7]. In this system, it was scanned a target object at the interval of 1.0mm with a 3-D scanner. We proposed the transcranial brain imaging system by using ultrasonic array probe [8,9].
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