• Imaging Science in Dentistry
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• 제50권4호
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• pp.291-298
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• 2020

Purpose: The detection and exact localization of penetrating foreign bodies are crucial for the appropriate management of patients with dentoalveolar trauma. This study compared the efficacy of cone-beam computed tomography (CBCT) and spiral computed tomography (CT) scans for the detection of different foreign bodies composed of 5 frequently encountered materials in 2 sizes. The effect of the location of the foreign bodies on their visibility was also analyzed. Materials and Methods: In this in vitro study, metal, tooth, stone, glass, and plastic particles measuring 1×1×1 mm and 2×2×2 mm were prepared. They were implanted in a sheep's head in the tongue muscle, nasal cavity, and at the interface of the mandibular cortex and soft tissue. CBCT and spiral CT scans were taken and the visibility of foreign bodies was scored by 4 skilled maxillofacial radiologists who were blinded to the location and number of foreign bodies. Results: CT and CBCT were equally accurate in visualizing metal, stone, and tooth particles of both sizes. However, CBCT was better for detecting glass particles in the periosteum. Although both imaging modalities visualized plastic particles poorly, CT was slightly better for detecting plastic particles, especially the smaller ones. Conclusion: Considering the lower patient radiation dose and cost, CBCT can be used with almost equal accuracy as CT for detecting foreign bodies of different compositions and sizes in multiple maxillofacial regions. However, CT performed better for detecting plastic particles.

• Journal of Chest Surgery
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• 제54권5호
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• pp.419-421
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• 2021

Fracture of prosthetic valve leaflets in the absence of traumatic injury is very rare. Leaflet fracture can cause acute pulmonary edema and cardiogenic shock and is potentially life-threatening, requiring emergency surgery. Thus, a leaflet fracture must be diagnosed quickly and accurately. We present the case of a 46-year-old man with CarboMedics prosthetic aortic and mitral valve replacements implanted 24 years previously. The patient presented at our emergency department with abrupt dyspnea and fever. We diagnosed severe mitral valve regurgitation with anterior leaflet fracture. The patient underwent venoarterial extracorporeal membrane oxygenation and delayed mitral valve replacement. The foreign body was removed step by step because the diagnosis was missed. Two pieces of broken leaflets were found in the left common iliac artery and left external iliac artery. The patient was treated successfully and remains asymptomatic 1 year following surgery.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.122-127
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• 2020

After the THAAD crisis, Goyang city's Global Medical Service performance is showing a sharp decline compared to other cities and provinces. In particular, the contraction of participants who can create policy outcomes such as Medical Institutions and Attracting companies has emerged as the biggest problem. Therefore, Goyang City wanted to derive effective marketing policies and establish marketing policies according to their priorities in order to prevent the deaths of the future patient visitor market as well as performance. In order to examine such policy needs more closely, this paper reviewed the Global Medical Service policies of Goyang City based on AHP analysis, and derived a ranking of 28 major policies and preferred policies for each participant. In the future, Goyang City is expected to derive major policy effects by applying the results of this study to the establishment of marketing policies through customized policies for each medical institution type and Patient attraction company.

• Imaging Science in Dentistry
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• 제54권1호
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• pp.57-62
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• 2024

Purpose: This report presents a unique case featuring real, ghost, and pseudo-ghost images on the panoramic radiograph of a patient wearing earrings. It also explains the formation of these images in an easy-to-understand manner. Materials and Methods: One real image and two ghost images appeared on each side of a panoramic radiograph of a patient wearing earrings on both sides. Of the two ghost images on each side, one was considered a typical ghost image and the other was considered a ghost-like real image (pseudo-ghost image). The formation zones of the real, double, and ghost images were examined based on the path and angles of the X-ray beam from the Planmeca ProMax. To simulate the pseudo-ghost and typical ghost images on panoramic radiography, a radiopaque marker was affixed to the right mandibular condyle of a dry mandible, and the position of the mandible was adjusted accordingly. Results: The center of rotation of the Planmeca ProMax extended beyond the jaw area, and the area of double image formation also reached beyond the jaw. The radiopaque-marked mandibular condyle, situated in the outwardly extending area of double image formation, exhibited triple images consisting of real, double (pseudo-ghost), and ghost images. These findings helped to explain the image formation associated with the patient's earrings observed in the panoramic radiograph. Conclusion: Dentists must understand the characteristics and principles of the panoramic equipment they use and apply this understanding to taking and interpreting panoramic radiographs.

• Journal of Chest Surgery
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• 제29권9호
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• pp.1040-1044
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• 1996

흉부외상에 의한 흉곽내 이물의 기관지 침식 또는 이동은 극히 드물게 발생하는 경우이다. 41세 남자가 만성 기침과 농성 객담을 주소로 내원하였다. 과거력상 30년전 어린시절 나무에서 떨어져 왼쪽가슴을 나무에 찔린 사고를 당해 약 6개월간 병원에서 치료받았으며 상처부위에서 나무토막이 나왔다고하였다. 단순 흉부사진에서 3x/cm 크기의 석회화된 음영이 좌측 폐후기저구역에서 보였으며 흉부 전산화 단층촬영 사진에서 좌측 폐 횡격막측흉막 근처에 기관지확장증이 동반된 석회화 소견을 보였다. 좌하엽 절제술후 합병증없이 경쾌 퇴원하였다.

• 한국임상수의학회지
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• 제39권6호
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• pp.411-416
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• 2022

A 2.2 kg adult female Amur leopard cat (Prionailurus bengalensis) injured in a road accident was rescued. Severe abrasions on the left chin were washed daily with an antiseptic and silver sulfadiazine ointment was applied. Corneal edema of the oculus sinister (OS) was treated with ofloxacin and 5% sodium chloride eye drops. The skin wounds gradually improved, but the eye condition did not improve and the lens was also found to be detached. In addition, on the 6th day of hospitalization, melena was observed. On radiographic examination, foreign bodies in the stomach and a fracture of the sternum were confirmed. Subsequently, endoscopic removal of foreign bodies and enucleation of the OS using an electrothermal vessel sealer were performed sequentially over several days. However, corrective surgery of the fractured sternum was not carried out because a natural union of the fracture had occurred, which was found to be fairly stable. The patient completely recovered on the 83rd day and was successfully released into the wild on the 97th day, after two weeks of adaptation training in a natural environment. This report describes the rehabilitation of a wild Amur leopard cat injured in a road accident through a series of diagnostic and treatment steps until its eventual return to the wild and highlights some improvements needed in the process.

• Journal of Chest Surgery
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• 제40권5호
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• pp.384-387
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• 2007

성인에 있어서 이물질이 기관을 관통하는 경우는 매우 드물다. 42세 남자 환자가 10년 전 왼쪽 등을 유리에 찔리는 외상을 입었다. 환자는 1년 전부터 혈담(blood tinged sputum) 및 호흡곤란이 있었다. 흉부 단층 촬영과 기관지 내시경에서 기관을 뚫고 지나가는 이물질이 발견되었고 심한 기관지 부종을 동반하고 있었다. 경부 절개를 통해 접근하여 기관 내 이물질을 제거하였고 결손 자리를 단순 봉합하였다. 수술 후 기관 내 이물질은 5 cm 길이의 유리 조각임을 확인할 수 있었다 수술 후 환자는 합병증 없이 퇴원하였으며 현재 특별한 증상 없이 2년째 외래 경과 관찰 중이다.

• Archives of Plastic Surgery
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• 제34권1호
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• pp.111-114
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• 2007

Purpose: Dystrophic calcification occurs in damaged or devitalized tissues in the presence of a normal calcium and phosphorus metabolism. There are many reports on dystrophic calcification caused by injections of various types of drugs. The aim of this report is to highlight the fact that dystrophic calcification can be caused by the injection of a foreign body for aesthetic augmentation. Methods: This case report describes a patient presenting with dystrophic calcification caused by an injection of an unknown foreign body approximately 50 years ago. An 80-year-old man had localized cellulitis with swelling and ulceration on the dorsum of the left hand. The radiographs demonstrated a $5{\times}3.5{\times}1.7cm$ lesion between the first and second metacarpal bones and a $5{\times}2.5{\times}1.5cm$ lesion in the hypothenar region. The laboratory data and physical examinations were generally within the normal limits. The microscopic examination revealed dead bone fragments and dense collagenous tissue with dystrophic calcification. Results: After surgically removing the masses, the resulting defects were treated with an abdominal flap. The result was satisfactory in terms of symptoms and appearance. Conclusion: This case suggests that dystrophic calcification can be caused by an injection of a foreign body for aesthetic augmentation.

• 한국임상수의학회지
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• 제41권2호
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• pp.127-132
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• 2024

A 6-month-old intact female Bichon Frise dog weighing 0.9 kg presented with vomiting, anorexia, and lethargy persisting for 3 days. No remarkable abnormalities were detected on the history or physical examination. Laboratory findings were mostly normal, except for elevated levels of alkaline phosphatase (ALP) and blood urea nitrogen (BUN). Abdominal radiography revealed a fluid-dilated stomach and gas-dilated intestinal loops in the regional areas. Abdominal ultrasonography was performed to investigate the cause of gastrointestinal dilation, which revealed a rectangular, homogeneous, echogenic foreign material with no shadowing in the small intestine, causing mechanical obstruction. Upon further inquiry involving detailed re-take of history with the owner, a history of ingesting dog gum 4 days prior was identified. On surgical enterotomy, the hard pet food was identified and removed from the distal duodenum. Postoperatively, the patient's clinical signs showed complete improvement, with a return to normal appetite. The present case demonstrates that less-digestible, hard pet food, despite showing no shadowing on ultrasonography, can act as a foreign material, causing mechanical intestinal obstruction in a small-breed puppy. Furthermore, surgical removal of these materials is necessary in cases of intestinal obstruction.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1976년도 제10차 학술대회연제 순서 및 초록
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• pp.89.3-89
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• 1976

최근 연자등은 45일간 좌측기관지內에 계류된 plastic gun bullet 1례를 경험하였기에 보고한다. 환자는 11세 남아로서 내원 약 45일전에 갑자기 발생한 심한 기침과 호흡곤난으로 지방모병원에서 급성증악성 폐결핵이란 진단하에 강력한 항결핵치료를 받았으나 증상의 호전을 볼 수 없어 본외래를 찾아왔다. 흉부 X-선상 좌측하엽에 심한 무기폐가 관찰되었으나 이물의 음영상은 발견할 수 없었다. 병력으로 미루어 이물을 의심하고 전신마취하에 기관지경검사를 시행하였던 바 좌측 기관지내에 계류된 plastic gun bullet를 발견하고 제거하였으며 제거후 약 1주일간에 무기폐로 인한 좌측폐하엽의 음영은 점진적으로 호전되어 제거후 11일만에 퇴원하였다.