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Solgi, Razieh, Ghadiri, Hossein. (1401). Effects of Beamforming Techniques on Quality of Ultrasound Computed Tomography Images. سامانه مدیریت نشریات علمی, 12(4), 349-358. doi: 10.31661/jbpe.v0i0.2107-1367
Razieh Solgi; Hossein Ghadiri. "Effects of Beamforming Techniques on Quality of Ultrasound Computed Tomography Images". سامانه مدیریت نشریات علمی, 12, 4, 1401, 349-358. doi: 10.31661/jbpe.v0i0.2107-1367
Solgi, Razieh, Ghadiri, Hossein. (1401). 'Effects of Beamforming Techniques on Quality of Ultrasound Computed Tomography Images', سامانه مدیریت نشریات علمی, 12(4), pp. 349-358. doi: 10.31661/jbpe.v0i0.2107-1367
Solgi, Razieh, Ghadiri, Hossein. Effects of Beamforming Techniques on Quality of Ultrasound Computed Tomography Images. سامانه مدیریت نشریات علمی, 1401; 12(4): 349-358. doi: 10.31661/jbpe.v0i0.2107-1367

Effects of Beamforming Techniques on Quality of Ultrasound Computed Tomography Images

Journal of Biomedical Physics and Engineering
مقاله 4، دوره 12، شماره 4، آبان 2022، صفحه 349-358    اصل مقاله (1.62 M)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.2107-1367
نویسندگان
Razieh Solgi1، 2؛ Hossein Ghadiri* 3، 4
1MSc, Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
2MSc, Preclinical Lab, Core Facility, Tehran University of Medical Sciences, Tehran, IranPreclinical Lab, Core Facility, Tehran University of Medical Sciences, Tehran, Iran
3PhD, Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
4PhD, Advanced Medical Technologies and Equipment Institute, Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran Advanced Medical Technologies and Equipment Institute, Research Center for Molecular and Cellular Imaging, Tehran University
چکیده
Background: In body tissues, tumors generally have different speeds of sound (SOS) than normal tissues. In this respect, ultrasound computed tomography (UCT) can generate a cross-sectional SOS map as an innovative ultrasound imaging method. This technique can produce images with a resolution of millimeters and a high signal-to-noise ratio. 
Objective: This study aimed to improve UCT image quality without increasing breast cancer screening and diagnosis time.
Material and Methods: In this analytical study, a ring-shaped UCT breast imaging system was simulated using the K-wave toolbox of MATLAB. The system has a 20 cm diameter and 256 ultrasonic piezoelectrics placed in the ring’s circumference. Different beamforming techniques imaged two designed phantoms (i.e., resolution and contrast), and the resolution and contrast to noise ratio (CNR) were calculated. 
Results: The results of resolution phantom imaging without any beamforming showed that only bars with the value of 0.125 and 0.167 lp/mm were distinguishable, and the 0.1 bars were not recognizable in the imaging. In addition, increasing the number of transmitters led to no noticeable change in resolution for 0.125 and 0.167 lp/mm bars. In all beamforming techniques for imaging the contrast phantom, the CNR parameter up to an object with a diameter of 8 mm increases with increasing diameter without any change.  
Conclusion: The beamforming technique using three simultaneous transmitters improved the resolution by about 1 mm compared to the normal strategy. In addition to high-contrast images, beamforming with 9 simultaneous transmitters led to a preferable technique
کلیدواژه‌ها
Beamforming؛ Fan Beam Back Projection؛ Image Quality Enhancement؛ Image Reconstruction؛ Ultrasound Computed Tomography؛ Ultrasound Imaging؛ Signal-To-Noise Ratio؛ Ultrasonography؛ Tomography
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