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http://dx.doi.org/10.7742/jksr.2022.16.7.975

Image Quality Analysis According to the of a Linear Transducer  

Ji-Na, Park (Comprehensive Medical Examination Center, KS Hospital)
Jae-Bok, Han (Department of Radiology, Dongshin University)
Jong-Gil, Kwak (Department of Radiological Technology, Gwangju Health University)
Jong-Nam, Song (Department of Radiology, Dongshin University)
Publication Information
Journal of the Korean Society of Radiology / v.16, no.7, 2022 , pp. 975-984 More about this Journal
Abstract
Since a linear transducer has an area of interest equal to the length of the transducer, the area of interest can be expanded using the virtual convex function installed in the device.However, it was thought that the change in the direction of the ultrasonic sound velocity according to the change in the visual area of interest would affect the image quality, so this was objectively confirmed. For this study, image evaluation and SNR·CNR of the phantom for ultrasound quality control were measured. As a result, in the phantom image evaluation, both images were able to identify structures in functional resolution, grayscale, and dynamic range. However, it was confirmed that the standard image was excellent in the reproducibility of the size and shape of the structure. As a result of SNR·CNR evaluation, SNR·CNR of most trapezoidal images was low, except for structures at specific locations. In addition, through the statistical analysis graph, it was further confirmed that the SNR and CNR for each depth decreased as the size of the cystic structure decreased. Through this study, it was confirmed that the use of the function has the advantage of providing a wide visual area of interest, but it has an effect on the image quality. Therefore, when using the virtual convex function, it is judged that the examiner should use it in an appropriate situation and conduct various studies to acquire high-quality images and to improve the understanding and proficiency of the equipment.
Keywords
Linear transducer; Evaluation of Image Quality; SNR; CNR;
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Times Cited By KSCI : 5  (Citation Analysis)
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