• Journal of Chest Surgery
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• 제49권5호
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• pp.383-386
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• 2016

Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is an extremely rare, potentially fatal, congenital anomaly with a high mortality rate in the first year of life. It occurs rarely in adulthood and may appear with malignant ventricular arrhythmia or sudden death. We report a case of a 49-year-old woman with ALCAPA who presented with dyspnea on exertion. Management was coronary artery bypass grafting to the left anterior descending artery and obtuse marginal arteries, closure of the left main coronary artery ostium, and reestablishment of the dual coronary artery system.

• Imaging Science in Dentistry
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• 제52권3호
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• pp.327-332
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• 2022

Mucocele of the paranasal sinuses is a benign, slow-growing, expansile lesion. Maxillary sinus mucoceles are usually associated with painless bulging of the cheek; however, orbital expansion is rarely observed. Maxillary sinus mucoceles can be classified as primary or secondary according to their etiology. An impediment to sinus ostium ventilation is thought to be the cause of primary mucocele, while sequestering of residual mucosa after surgery in the wound and long-term retention of tissue fluid have been suggested to lead to the formation of secondary mucocele. This report presents 2 cases of primary and secondary mucoceles, with a focus on radiographic features. As primary and superiorly positioned secondary maxillary sinus mucoceles are uncommon and their close proximity to the orbit predisposes the patient to significant morbidity, the authors expect that this report will contribute to a better understanding and diagnosis of maxillary sinus mucocele involving the orbit.

• Journal of Chest Surgery
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• 제41권3호
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• pp.360-362
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• 2008

대혈관전위 환자에서 동맥치환술 시행 시 관상동맥의 위치는 수술의 성적 및 환자의 예후에 매우 중요한 요소이다. 본 증례는 과거 대혈관전위로 동맥치환술을 시행 받았던 환자에서 발생한 관상동맥 압박에 대한 보고이다. 14세 남자 환자로 운동 시 협심증을 주소로 내원하였고, 영상학적 검사 결과 좌관상동맥 기시부가 대동맥과 폐동맥 사이에 위치하여 눌리고 있는 양상이어서 수술적 치료를 결정하였다. 수술은 좌관상동맥 기시부를 대동맥에서 버튼 절제한 후 좌외측으로 재이식하여 폐동맥에 눌리지 않도록 하였다. 수술 후 관상동맥의 대혈관에 의한 압박 소견은 사라졌으며 환자는 현재까지 합병증이나 증상 재발 없이 추적 관찰 중이다.

• 한국정보전자통신기술학회논문지
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• 제9권2호
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• pp.196-204
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• 2016

세계보건기구협회에의 통계에 따르면 심장 혈관 질환의 발병률이 가장 높은 것으로 알려져 있다. CTA영상을 사용하여 관상동맥 및 대동맥 질환을 치료 및 검사할 수 있다. 혈관을 3차원으로 복원하는 과정이 의사의 숙련도에 따라 결과가 상이하며 복원 시간이 길다는 단점이 있으며 이를 극복하고자 자동으로 정확한 혈관을 추출하는 연구들이 진행되어 왔다. 본 논문에서는 자동 및 반자동 분할 기법인 Region Competition, Geodesic Active Contour(GAC), Multi-atlas based segmentation, Active Shape Model(ASM) 알고리즘을 CTA영상에 적용하여 대동맥 기부를 추출하였으며 하우스도르프 거리, 볼륨, 영상처리속도, 사용자 관여 여부, 그리고 관상동맥 심문 검출률을 비교 및 분석하였다. 추출된 3차원 대동맥 모델 중 가장 높은 정확도를 나타낸 알고리즘은 GAC인 반면 사용자 관여가 가장 높았기 때문에 실제 시술에 적용하기 위해서는 자동 분할 알고리즘 개선이 필요하다

• 한방안이비인후피부과학회지
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• 제19권1호
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• pp.43-54
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• 2006

Objective : In order to investigate anti-inflammatory effect of Alum objectively which is traditional remedy applicated by external preparation frequently, especially in Rhinologic field. Materials and Method : We studied the histopathologic and hematologic features, serum transaminase activities in the experimentally induced maxillary sinusitis in rabbits. 9 rabbits was divided into normal, control anti sample group(each 3 rabbits). We inoculated $10^{10}$ P. aeruginosa for experimental maxillary sinusitis to control group and sample group. Sample group was treated with aim solution(l0g/100cc) lcc via both nasal cavity (each 0.5cc) after 24hrs everyday for 14days. Results and Conclusion : 1. We confirmed that maxillary sinusitis was well induced by P. aeruginosa without occlusion of maxillary ostium. 2. There was no abnormal findings in serum transaminase(AST/ALT) activities even though application of Alum solution on nasal mucosa for 14days continuously. 3. Alum has evident anti-inflammatory effect of recovering mucosal surface injury, reduction of goblet cell, lymphocyte infiltration, edema and expansion of glandular tissue, dilatation and congestion of blood vessels and so on. 4. Alum has the effect that recover glandular tissue injury and decrease goblet cell increase by the result of dermal PAS staining increase and epidermal AB staining decrease in the qualitative analysis of epidermal and dermal mucopolysaccharide

• 치과방사선
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• 제17권1호
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• pp.259-269
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• 1987

The purpose of this study was to evaluate the specialized Orthopantomograms and standard films compared with Waters' views in the diagnosis of maxillary sinusitis. The author analysed the types of mucosal thickening, the types of bony wall change, the relation between the types of chief complaints and mucosal thickening on the Waters' views of 156 patients with 206 maxillary sinuses demonstrating radiographic changes. And the pathologic change of antral floor was observed on 187 standard films and total amount of agreement in the diagnosis of maxillary sinusitis was evaluated at 156 specialized Orthopantomograms and 187 standard films. The results were obtained as followings. 1. Among 206 mucosal thickenings classified by 6 types, generalized increased radiopacity was 69 cases (33.5%) and the entire thickening of mucosa except an ostium area was 66 cases (32.0%), 2. The bony wall change was seen in 128 cases (62.1%) and the incidence of indistinct antral wall was the highest as 55 cases (43.0%) among 5 types. 3. Among 148 chief complaints, pain was 71 cases (48.0%), swelling was 19 cases (12.8%) and discomfort was 18 cases (12.2%). 4. The most frequent change of antral floor was indistinct antral floor as 25 cases (13.4%) and elevation of antral floor was 23 cases (12.3%). And the first molar presented the most frequent involvement of antral floor as 47 cases (57.3%). 5. In 156 specialized Orthopantomograms, 101 cases (49.0%) presented apparent increased radiopacity and 72 cases (35.0%) showed suspicious increased radiopacity in comparison with Waters' view. In 187 standard films, 47 cases (25.1%) presented apparent increased radiopacity and 53 cases (28.4%) showed suspicious increased radiopacity in comparison with Waters' views.

• Investigative Magnetic Resonance Imaging
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• 제15권1호
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• pp.77-81
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• 2011

조영 증강 MR 혈관조영 영상에서 척추동맥 기시부의 협착이 과장되어 보이며 종종 가성협착율을 보인다는 것은 잘 알려져 있다. 그러나 뇌의 후방순환의 허혈, 경색의 임상적 중요성을 고려하면, 척추동맥 기시부 협착의 정확한 진단은 매우 중요하다. 따라서 저자들은 thin-slab maximum-intensity projection(MIP) 영상을 이용하여 통상적인 full thickness MIP 영상에서 보이는 척추동맥 기시부의 진성협착과 가성협착을 구분하고자 한다.

• Clinical and Experimental Pediatrics
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• 제45권6호
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• pp.790-795
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• 2002

모유 수유아에 발생하는 고나트륨혈성 탈수는 드물기는 하나 지난 30년 동안 꾸준히 보고되어 왔다. 저자들은 모유 수유 부족에 의한 고나트륨혈성 탈수를 보인 생후 14일된 여아를 경험하였다. 내원시 환아는 17%의 체중 감소가 있었고, 혈청 나트륨농도는 179 mEq/L였으며, 전신성 요독증, 고혈당증, 범발성 혈관내 응고증, 심부전 소견있었으나 치료 후 교정되었으며, 탈수 교정 중 경련을 보였으나 두부 초음파 및 뇌자기공명영상 검사에 뇌부종, 출혈 등 이상 소견은 없었고, 환아 현재 정상적인 발달을 하고 있기에 문헌 고찰상 이 증례는 모유 수유 중 발생한 고나트륨혈성 탈수의 첫 증례로 생각되어 보고하는 바이다.

• Journal of Chest Surgery
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• 제34권9호
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• pp.720-723
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• 2001

우관상동맥 폐쇄증을 동반한 Marfan 증후군환자를 보고한다. 환자는 45세 여자로 약 1년 전에 Marfan 증후군으로 진단받고, 최근 흉통을 주소로 내원하였다. 환자는 손가락과 발가락이 긴 지주증과 돌출흉이 있고 몸통에 비해 사지가 긴 전형적인 외형을 갖고 있었다. 시력이 매우 약하고 수정체의 아탈구가 있었다. 심초음파상 대동맥판막 폐쇄부전증은 경도로 있었고, 좌심실의 중등도 확장과 심박출율의 중등도 저하가 있었다. 수술시에 우관상동맥의 폐쇄증을 발견하였다. 대동맥판막 폐쇄부전증과 대동맥 확장증에 대해서 SJM 27mm composite graft를 이용하여 좌관상동맥에는 Bentall 술식과 우관상동맥에는 PTFE 6mm를 이용하여 변형된 Piehler 식 방법으로 수술을 하였다. 원래의 우관상동맥구로 추정되는 부분부터 우관상동맥 원위부의 혈류가 있는 곳까지의 결손부위는 약 4cm 가량 되었다. 관상동맥 폐색증과 Marfan 증후군의 조합은 매우 드문 질환으로 양측 관상동맥의 혈류 재건을 위하여 각기 다른 술식으로 수술하였다.

• Applied Microscopy
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• 제15권1호
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• pp.71-85
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• 1985

The ultrastructure on the dorsal vessel of 5-day-old cabbage butterfly, Pieris rapae L., was carried out using the transmission and scanning electron microscope. The results are as follows. 1) The aorta. The aorta is simple tubular type and consists of the inner and outer membrane of the myocardium and thick myocardium is located between them. However the inner membrane with $0.26{\mu}m$ thickness and outer membrane with $0.08{\mu}m$ are composed of fibrous materials, the former is composed of low and high densed fibrous materials and the latter appears homogeneous layer. The myocardium consists of typical striated muscles. The sarcomere with $1.6{\mu}m$ length and in cross section, each thick filaments are surrounded by $7{\sim}8$ thin filaments. The intercalated disc is joining the end of the two muscle cells, desmosomes and septate junctions are appeared between the neighboring muscle cells. 2) The heart. The heart composing of myocardium enclosed by its inner and outer membrane as the aorta has a series of well formed segmental chamber. The arrangement of myofilaments, cell adhensions and membrane elements are observed as same as at the aorta. The inner membrane of the heart is deeply invaginated into the myocardium than the outer membrane and a lot of well developed mitochondria with rod shape are aggregated in the folds. The longitudinally and transversely oriented tubule system formed by invagnation of the sarcolemma into the muscle bundle is built up dyad with the sarcoplasmic reticulum as the aorta. The slit is formed by deeply invagination of the inner membrane of myocadium toward the muscle layer and then the inner and outer membrane of myocardium are fused. Therefore, the ostium is formed between the myocardium and situated at the lateral side of the myocardium.