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http://dx.doi.org/10.17946/JRST.2015.38.4.15

The Impacts of Piezoelectric Elements' Defects On Color & Power Doppler Images  

Lee, Kyung-Sung (Department of Radiotechnology, Cheju Halla University)
Publication Information
Journal of radiological science and technology / v.38, no.4, 2015 , pp. 443-449 More about this Journal
Abstract
An ultrasound probe has a big impact on Doppler images even though it has very high risk of frequent function-breakdowns occurring in medical ultrasound scanners. This study experimentally analyses the impacts of an ultrasonic probe's defected elements on power & color Doppler images. The results show that, the bigger the size of defected probe elements is, and the closer a group of action elements is to the center, the more the brightness of images and the velocity of Doppler diminish. When elements' defects increase in color & power Doppler images, false images are formed to be mistaken for blood-vessel plaque in neighboring regions. Accordingly, whenever element defects are suspected, we need check-up process in B-mode. From this respective, it is advisable to have primary interest in a probe and carry out continuous probe QA for ultrasonography.
Keywords
Ultrasound probe; Defected elements; Group of action elements; Velocity of Doppler;
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Times Cited By KSCI : 2  (Citation Analysis)
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