• BMB Reports
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• v.35 no.1
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• pp.67-86
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• 2002

Three routes have been identified triggering neuronal death under physiological and pathological conditions. Excess activation of ionotropic glutamate receptors cause influx and accumulation of $Ca^{2+}$ and $Na^+$ that result in rapid swelling and subsequent neuronal death within a few hours. The second route is caused by oxidative stress due to accumulation of reactive oxygen and nitrogen species. Apoptosis or programmed cell death that often occurs during developmental process has been coined as additional route to pathological neuronal death in the mature nervous system. Evidence is being accumulated that excitotoxicity, oxidative stress, and apoptosis propagate through distinctive and mutually exclusive signal transduction pathway and contribute to neuronal loss following hypoxic-ischemic brain injury. Thus, the therapeutic intervention of hypoxic-ischemic neuronal injury should be aimed to prevent excitotoxicity, oxidative stress, and apoptosis in a concerted way.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2002.09a
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• pp.13-16
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• 2002

Recent topics on quality assurance (QA) of X-ray diagnosis in Japan were reported in this presentation. These were related to mass screening mammography (MMG), lung screening CT (LSCT), skin injury caused by interventional radiology (IVR) and traceable system of dosimeters for x-ray diagnosis. In these successful stories, the author would like to stress the cooperation of all the medical am: clinical staff including medical doctors, radiological technologists, medical physicists, manufacturers of medical devices and others.

• Imaging Science in Dentistry
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• v.41 no.3
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• pp.123-128
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• 2011

Arteriovenous malformations are extremely rare conditions in that can result from abnormalities in the structure of blood vessels, which may be potentially fatal. A 30-year-old female patient visited our hospital with a complaint of swelling on the right maxillary posterior gingiva along with the large port-wine stain on right side of face. On clinical examination, the swelling was compressible and pulsatile. Radiographic examination revealed a lytic lesion of maxilla. Diagnostic angiography revealed a high-flow arteriovenous malformation of maxilla which was treated by selective transarterial embolization of maxillary artery using polyvinyl alcohol particles.

• Journal of Korean Clinical Nursing Research
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• v.26 no.3
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• pp.305-313
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• 2020

Purpose: The purpose of this study was to identify factors influencing the Radiation Protection(RP) behaviors of endoscopy nurses during endoscopic interventional radiology. Methods: A total of 188 endoscopy nurses working at 30 tertiary or general hospitals participated in this questionnaire-based study. The questionnaire included items on general and job related characteristics, RP knowledge, RP attitude, RP behavior, self-efficacy, and safety climate. Data were collected through online surveys from March 22 to April 10, 2019. Results: Multivariate analysis revealed that RP attitude (β=.65, p<.001), safety climate (β=.12, p=.035), self-efficacy (β=.14, p=.009), and existence of RP protocols (β=.11, p=.038) were significant predictors of better RP behavior. Conclusion: The findings showed that the RP behavior of endoscopy nurses was at high levels and the continuing education for endoscopy nurses and development of a radiation safety management education program were important to improve RP behavior.

• Korean Journal of Radiology
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• v.22 no.12
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• pp.2006-2016
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• 2021

The expanding scope of interventional musculoskeletal procedures has resulted in increased pressure on general radiologists. The confidence of general radiologists in performing ultrasound-guided musculoskeletal procedures varies with their clinical exposure. This didactic review provides a methodologically and clinically oriented approach to enhancing user understanding and confidence in performing ultrasound-guided musculoskeletal procedures. The body of the text is accompanied by figures depicting the procedural approach, injection site, and labeled ultrasonography images. This paper aims to provide a teaching and bedside aid for education on and the execution of musculoskeletal procedures to ensure the provision of quality health care.

• Korean Journal of Radiology
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• v.22 no.7
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• pp.1110-1123
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• 2021

Owing to improvements in surgical techniques and medical care, living-donor liver transplantation has become an established treatment modality in patients with end-stage liver disease. However, various vascular or non-vascular complications may occur during or after transplantation. Herein, we review how interventional radiologic techniques can be used to treat these complications.

• Korean Journal of Radiology
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• v.1 no.4
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• pp.208-211
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• 2000

We present a case in which an arterial rupture occurring during embolization of an arteriovenous malformation of the left occipital lobe with a flow-directed microcatheter, was successfully sealed with a small amount of glue. We navigated a 1.8-Fr Magic catheter through the posterior cerebral artery, and during superselective test injection, extravasation was observed at the parieto-occipital branch. The catheter was not removed and the perforation site was successfully sealed with a small amount of glue injected through the same catheter. Prompt recognition and closure of the perforation site is essential for good prognosis.

• Journal of radiological science and technology
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• v.14 no.2
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• pp.57-73
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• 1991

• Korean Journal of Radiology
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• v.24 no.4
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• pp.372-373
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• 2023

• Korean Journal of Radiology
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• v.24 no.3
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• pp.180-189
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• 2023