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- W2734619159 abstract "For digital subtraction angiography(DSA) with C-type equipment, it is possible to radiate an X-ray during rotation and to collect data at different angular settings. We tried to reconstruct transverse image from data obtained by scanning DSA images at different angular settings. 88 projection data were obtained by rotating the object at 180゜ during radiation. Reconstruction was made using the convolution method with pixel value distribution for each projection. Similarly, the image quality of the reconstructed images were compared with the unsubtracted and subtracted ones. In case a part of object was outside the calculating region, artifacts were generally produced. However, the artifacts were reduced by subtracting the background from the image. In addition, the cupping phenomenon caused by beam hardening was relaxed and high-quality imaging could be achieved. This method will become even more effective, if we will use it with selective angiography in which the limited area is enhanced." @default.
- W2734619159 created "2017-07-21" @default.
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- W2734619159 date "1995-01-01" @default.
- W2734619159 modified "2023-10-03" @default.
- W2734619159 title "A STUDY OF TRANSVERSE IMAGE RECONSTRUCTION WITH DIGITAL SUBTRACTION ANGIOGRAPHY" @default.
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- W2734619159 doi "https://doi.org/10.6009/jjrt.kj00001352461" @default.
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