• Construction Engineering and Management
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• v.22 no.5
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• pp.31-39
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• 2021

• Journal of the Korean Society of Radiology
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• v.84 no.6
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• pp.1378-1383
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• 2023

Pulmonary artery sarcomas are rare, high-grade malignancies, primarily affecting the proximal elastic pulmonary artery and usually manifesting as tumoral impaction on imaging. Due to similar clinical and imaging findings, pulmonary artery sarcomas are frequently misdiagnosed as pulmonary thromboembolism or, occasionally, as vasculitis. Herein, we reported a case of pulmonary artery intimal sarcoma initially misdiagnosed as pulmonary thromboembolism and vasculitis due to its relatively atypical location and morphology, along with a literature review.

• Journal of the Korean Society of Radiology
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• v.83 no.5
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• pp.1003-1013
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• 2022

Biliary atresia is an unknown etiology of extrahepatic bile duct obstruction with a 'fibrous ductal remnant,' which represents the obliterated ductal remnant in the porta hepatis. The sonographic 'triangular cord' (TC) sign has been reported to indicate a fibrous ductal remnant in the porta hepatis. In this review, we discuss the correlations among surgicopathological and sonographic findings of the porta hepatis and the definition, objective criteria, diagnostic accuracy, and differential diagnosis of the TC sign in biliary atresia.

• 한국호스피스협회지
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• s.118
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• pp.8-11
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• 2010

• 한국호스피스협회지
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• s.75
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• pp.3-3
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• 2004

• Journal of the Korean hospital association
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• v.13 no.8.9 s.117
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• pp.52-55
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• 1984

• The Journal of Korean Society for Radiation Therapy
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• v.35
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• pp.7-13
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• 2023

Purpose: In this study, we evaluated the effect of using a customized bolus on dose delivery in the treatment plan when cervical cancer protruded out of the body along with the uterus and evaluated reproducibility in patient set-up. Materials & Methods: The treatment plan used the Eclipse Treatment Planning System (Version 15.5.0, Varian, USA) and the treatment machine was VitalBeam (Varian Medical Systems, USA). The radiotherapy technique used 6 MV energy in the AP/PA direction with 3D-CRT. The prescribed dose is 1.8 Gy/fx and the total dose is 50.4 Gy/28 fx. Semiflex TM31010 (PTW, Germany) was used as the ion chamber, and the dose distribution was analyzed and evaluated by comparing the planned and measured dose according to each position movement and the tumor center dose. The first measurement was performed at the center by applying a customized bolus to the phantom, and the measurement was performed while moving in the range of -2 cm to +2 cm in the X, Y, and Z directions from the center assuming a positional error. It was measured at intervals of 0.5 cm, the Y-axis direction was measured up to ±3 cm, and the situation in which Bolus was set-up incorrectly was also measured. The measured doses were compared based on doses corrected to CT Hounsfield Unit (HU) 240 of silicon instead of the phantom's air cavity. Result: The treatment dose distribution was uniform when the customized bolus was used, and there was no significant difference between the prescribed dose and the actual measured value even when positional errors occurred. It was confirmed that the existing sheet-type bolus is difficult to compensate for irregularly shaped tumors protruding outside the body, but customized Bolus is found to be useful in delivering treatment doses uniformly.

• Journal of the Korean Society of Radiology
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• v.83 no.5
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• pp.965-965
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• 2022

• The Journal of KAIRB
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• v.4 no.1
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• pp.5-15
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• 2022

To suggest future directions for the improvement in the Institutional Review Board (IRB) review process and efficient operation of IRB, we have analyzed the IRB review results from 460 new research proposals submitted to the Review by the Convened IRB of the Keimyung University Dongsan Hospital IRB from January 2019 to July 2021. IRB is an independently established institutional committee to protect the human subjects by reviewing the research protocol in ethical as well as scientific aspects, so it is necessary to continuously contemplate the ethical versus scientific dilemma of 'what is ethical or scientific and what can actually protect human subjects.' Particularly, in this process, it is necessary to consider diverse ways to strengthen self-supervision through continuous Internal Audit rather than simple reporting outcomes. In addition, if it does not directly affect the protection of the human subjects, the discussion with the committee members is needed so that the comments such as administrative and typographical errors can be reduced as much as possible. Furthermore, as statistical analysis methods can have a significant impact on the safety of human subjects, if a legal basis and/or support related to statistics is provided for the composition of IRB members, a more specialized IRB review will be achieved.

• 한국호스피스협회지
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• s.91
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• pp.8-8
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• 2006