Dose Assessment for Modeling Medical Phantom of X-Ray Phase Contrast in Web Measurement Convergence-based Kim Chang-Gyu1,*, Kwack Myung-Joon2, Lee Boo-Woo3, Lee Sooyeul4, Song Yoonseon4, Chae Byung Gyu4 1Department of Radiological Science, Gimcheon University, South Korea 2Electronics and Telecommunications Research Institute, Korea 3Department of Radiological Science, Gimcheon University, South Korea 4Electronics and Telecommunications Research Institute, Korea *Corresponding Author: Chang-Gyu Kim, Professor, Department of Radiological Science, Gimcheon University, South Korea. Email: radkcg@hanmail.net
Online published on 2 February, 2019. Abstract Conventional X-ray medical imaging technology used information of x-ray absorption difference due to tissue density difference in the subject. On the other hand, X-ray phase contrast imaging technology is a technology that uses phase contrast information to dramatically increase boundary information between homogeneous materials or similar materials with little difference in density. In order to model the medical phantom that is capable of acquiring and evaluating X-ray phase contrast images, the spatial dose distribution and the absorbed dose were evaluated and analyzed to present the data to the medical phantom optimal design. As a result of the absorbed dose measurement before and after penetration around fixed scattering grid using glass dosimeter, the average absorbed dose before penetration was measured to be 110.8± 1.41μGy and the absorbed dose after penetration was measured to be 9.18± 1.08μGy. When the scattering and phase contrast images of the graphite material with almost no difference in contrast between the absorbed images were obtained and analyzed. images with relatively large image information were acquired. This result is expected to be used as an important basic data for determining the position of the subject and decreasing the medical exposure dose when acquiring the phase contrast images. Top Keywords Wireless computing, Exposure dose, phase contrast imaging, phantom, glass dosimeter, X-ray. Top |