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KMID : 1151820160100050359
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Journal of the Korean Society of Radiology
2016 Volume.10 No. 5 p.359 ~ p.365
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Correction of Fluoroscopic Image for Nucleoplasty in Lumbar Disc
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Yun Young-Woo
Kang Se-Sik
Choi Seok-Yoon
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Abstract
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Fluoroscopy is performed when tissue or organ in the human body is examined, and it is used for diagnosis and procedure in back ailments. With regard to fluoroscopy equipment, distortion occurs on the peripheral part of fluoroscopic image rather than on its central part. This study measured distortion factors of vertical spacing ratio and distortion factor of diagonal spacing ratio before and after correction by applying a correction algorithm. According to measuring the vertical spacing ratio, post-correction standard deviation decreased by 0.04 in comparison with pre-correction one. Also measuring the diagonal spacing ratio, post-correction standard deviation decreased by 0.06 in comparison with pre-correction one. Consequently, the distortion of fluoroscopic image decreased after correction. A decrease in the distortion of image through the application of correction algorithm and the improvement of performance will be helpful in finding a correct position of lumbar puncture in nucleoplasty to treat lumbar disc herniation in the future.
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KEYWORD
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Distortion, vertical spacing ratio, diagonal spacing ratio, lumbar disc
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