• Proceedings of the Korean Society of Radiological Science
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• 1989.06a
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• pp.84.3-84.3
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• 1989

• Proceedings of the Korean Society of Radiological Science
• /
• 1995.10a
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• pp.125.2-126
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• 1995

• Proceedings of the Korean Society of Radiological Science
• /
• 1995.10a
• /
• pp.141-142
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• 1995

• Proceedings of the Korean Society of Radiological Science
• /
• 1995.10a
• /
• pp.139.2-141
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• 1995

• Proceedings of the Korean Society of Radiological Science
• /
• 2002.10a
• /
• pp.32.1-32.1
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• 2002

• The Journal of the Korean dental association
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• v.27 no.8 s.243
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• pp.691-695
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• 1989

Raper가 1925년 소개한 교익방사선사진 촬영법은 나름대로의 독특한 특성을 갖고 있으므로 적절히 이용한다면 환자진료에 많은 도움을 받을 수 있을 것으로 생각되어 재조명해 보고자 한다.

• Proceedings of the Korean Society of Radiological Science
• /
• 2001.06a
• /
• pp.88.2-88.2
• /
• 2001

• Proceedings of the Korean Society of Radiological Science
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• 1996.06a
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• pp.16.1-16.1
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• 1996

• Restorative Dentistry and Endodontics
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• v.30 no.1
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• pp.66-71
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• 2005

Periapical cemental dysplasia(PCD) is a condition most commonly seen in the mandibular incisor region. Radiographically it passes through the three phases(osteolytic stage, intermediate stage, and mature stage). At osteolytic stage, the lesion is similar to features associated with granuloma or cyst that arise following pulpal necrosis. So, it is important to confirm the vitality of the pulp to diagnosis. In this case, it is difficult to confirm the vitality of involved tooth because the tooth was covered with PFG bridge. And it is unusual that the PCD lesion at mandibular incisors has occurred at first and the lesion of mandibular canine and mandibular premolar were occurred afterward.

• Journal of radiological science and technology
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• v.42 no.5
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• pp.365-371
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• 2019

We have developed and applied a diagnostic Multi-Leaf Collimator (MLC) to optimized the X-ray field in medical imaging and the usefulness evaluated through the fusion of infrared image and X-ray image acquired by infrared camera. The hand and skull radiography with multi-leaf collimator(MLC) showed significant area dose reductions of 22.9% and 31.3% compared to ARC and leakage dose was compliant with KS A 4732. Also scattering doses of 50 cm and 100 cm showed a significant decrease to confirm the usefulness of MLC. It was confirmed that the fusion of infrared images with an adjustable degree of transparency was possible in the X-ray images. Therefore, fusion of anatomical information with physiological convergence is expected to contribute and improvement of diagnostic ability. In addition, the feasibility of convergence X-ray imaging and DITI devices and the possibility of driving MLC with infrared images were confirmed.