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박도중 ( Do Joong Park ),김선회 ( Sun Whe Kim ),박윤찬 ( Youn Chan Park ),안영준 ( Young Joon Ahn ),서경석 ( Kyung Suk Suh ),이건욱 ( Kuhn Uk Lee ),박용현 ( Yong Hyun Park ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
간외담관암은 조기진단이 이용하지 않고 예후도 다른 소화기암에 비하여 좋지 않은 것으로 알려져 있으나 진단기술의 발달과 적극적인 수술로 절제율과 생존율이 호전되고있다. 하지만 이에 대한 분석은 많이 이루어지지 못하였다. 〈목적〉 이에 저자들은 간외담관암의 절제 후 생존율에 영향을 미치는 예후인자를 분석하고 장기생존자의 특성을 살펴보았다. 〈방법〉 1986년 1월부터 2002년 12월까지 15년간 본원 외과에서 간외담관암으로 치료를 받은 541명의 환자를
권우일,박도중,이혁준,김우호,양한광,최국진,이건욱,Kwon Wooil,Park Do Joong,Lee Hyuk-Joon,Kim Woo Ho,Yang Han-Kwang,Choe Kuk Jin,Lee KuhnUk 대한위암학회 2005 대한위암학회지 Vol.5 No.2
A hepatoid adenocarcinoma of stomach, a subtype of gastric cancr, is characterized by a histologic resemblance to a hepatocellular carcinoma and $\alpha$-feto protein production. Another feature is early metastasis to the liver and lymph nodes, thus revealing a poor prognosis. We report a case of a hepatoid adenocarcinoma of the stomach with liver metastasis. A 52-year-old male visited our hospital with a chief complaint of indigestion. Gastroscopic examination showed a Borrmann type-II lesion on the lesser curvature of the antrum. The CT scan showed a suspected advanced gastric cancer with liver metastasis. The serum AFP level was 123 ng/ml. A radical subtotal gastrectomy and a right hemihepatectomy were performed simultaneously. Pathologic examination confirmed the lesion to be confined to the submucosa. The gastric lesion was a hepatoid adenocarcinoma, and the hepatic lesion was a metastatic adenocarcinoma from the stomach. Therefore, he was classified as having stage IV (T1N1M1) gastric cancer. In cases of a hepatoid adenocarcinoma of the stomach, even patients with early gastric cancer can be staged into the poor prognostic group. 위암의 한 아형인 간양 선암은 조직학적으로 간세포암종과 형태학적으로 유사하며 알파태아단백 생산을 특징으로 한다. 간양 선암의 또 하나의 특징은 간과 림프절로의 조기 전이를 함으로써 불량한 예후를 갖는다는 것이다. 저자들은 간전이를 동반한 위의 간양 선암 1예를 보고하고자 한다. 소화불량을 주소로 내원한 52세 남자 환자는 위내시경 검사상 Borrmann 제2형 병변이 위암이 의심되었다. 환자의 혈청 알파태아단백은 123 ng/ml로 증가되어 있었다. 근치적 위아전절제술과 간우엽절제술을 시행하였고 조직학적 소견상 위의 병변은 점막하층에 국한된 간양 선암이었으며 간의 병변은 위로부터 전이된 선암이었다. 결국 환자는 위암 4기(T1N1M1)로분류되었다. 위의 간양 선암은 조기병변에서도 불량한 예후군으로 분류될 수 있다.
수술이 불가능한 전이성 또는 국소 진행성 위암 환자에서 선행화학요법의 효과
정유승,박도중,이혁준,김세형,한준구,김태유,방영주,허대석,김노경,김우호,양한광,이건욱,최국진,Chung Yoo-Seung,Park Do Joong,Lee Hyuk-Joon,Kim Se Hyung,Han Joon Koo,Kim Tae-You,Bang Yung-Jue,Heo Dae Seog,Kim No Kyung,Kim Woo Ho,Yang Han-Kwang 대한위암학회 2004 대한위암학회지 Vol.4 No.1
Purpose: The purpose of this study was to evaluate the treatment result of surgical resection after preoperative chemotherapy in inoperable gastric cancer patients. Materials and Methods: We analyzed 18 gastric cancer patients who underwent gastric resection after preoperative chemotherapy because they showed some clinical response to chemotherapy (15 with distant metastasis and 3 with locally advanced lesions). The mean postoperative follow-up period was $15.3\pm15.5$ ($1\∼56$) months. Results: In 15 patients with distant metastasis, 2 ($13.3\%$) showed complete response (CR), 10 ($66.7\%$) partial response (PR), 2 ($13.3\%$) stable disease (SD), and 1 ($6.7\%$) progressive disease (PD). The clinical response rate was $80.0\%$ Five subtotal gastrectomies, 4 total gastrectomies, and 6 extended total gastrectomies were performed. Two cases of CR were alive without recurrence for 4 and 26 months, respectively. Mean survival period in PR case was 37.7 months, but 2 cases of SD and 1 case of PD died after 11.7, 17.9, and 0.9 months, respectively. Postoperative survival was significantly associated with the response to chemotherapy (P<0.01). The mean survival period of the 10 patients with a complete resection was 44.1 months, which was significantly better than that of the 5 patients with an incomplete resection (9.8 months, P=0.03). Among 3 patients with locally advanced gastric cancer, 2 cases showed PR to chemotherapy, and complete resection was possible only by gastrectomy for those patients. Conclusion: In some selected cases, surgical resection was achievable after preoperative chemotherapy for patients with inoperable metastatic or locally advanced gastric cancer.
김훈엽,박도중,박효진,이혁준,양한광,김우호,이건욱,최국진,Kim Hoon Yub,Park Do Joong,Park Hyo Jin,Lee Hyuk-Joon,Yang Han-Kwang,Kim Woo Ho,Lee Kuhn Uk,Choe Kuk Jin 대한위암학회 2004 대한위암학회지 Vol.4 No.3
Recently, we experienced two advanced gastric cancer (AGC) patients younger than 17 years of age. The first case was a 15-year, 2-month-old male who had suffered from epigastric soreness for 5 weeks. His grandfather died of gastric cancer at 39 years of age. Under the diagnosis of AGC, he underwent a total gastrectomy with D2 lymph node dissection. There was no evidence of distant metastasis. Pathologic examination revealed a 4.5$\times$4 cm, signet ring cell adenocarcinoma with subserosal invasion and with metastasis in 9 of 42 regional lymph nodes (T2bN2M0). The second case was a 17-year, 11-month-old male who had suffered from epigastric pain for 2 years without familial clustering. Under the diagnosis of AGC, he underwent a distal subtotal gastrectomy with D2 lymph node dissection. There was no evidence of distant metastasis. Pathologic examination revealed a 3$\times$2 cm, signet ring cell adenocarcinoma with subserosal invasion and with metastasis in 9 of 45 regional lymph nodes (T2bN2M0). The two patients have been alive without recurrence for 27 months and 4 months, respectively. Even among teenagers, patients with abdominal complaints should be subjected to a thorough examination of the gastrointestinal tract.
서윤석,박도중,이혁준,조수연,김우호,박성희,양한광,이건욱,최국진,Seo Yun-Seock,Park Do Joong,Lee Hyuk-Joon,Cho Soo Youn,Kim Woo Ho,Park Seong Hoe,Yang Han-Kwang,Lee Kuhn Uk,Choe Kuk Jin 대한위암학회 2004 대한위암학회지 Vol.4 No.3
Primary small-cell carcinomas of the stomach are rare and aggressive malignancies with poor survival rates. Preoperative diagnosis is difficult and a standard treatment is not yet established. We have recently experienced two cases of a primary small-cell carcinoma of the stomach. The first case was a 65-year-old man with epigastric soreness. Endoscopic biopsy showed an adenocarcinoma. He underwent a radical subtotal gastrectomy with D2 lymph-node dissection. Pathology revealed a collision tumor of a smallcell carcinoma and an adenocarcinoma with submucosal invasion and with metastasis in 20 out of 48 lymph nodes (T1N3M0). The second case was a 64-year-old man with epigastric soreness. Endoscopic biopsy revealed a small-cell carcinoma. There was no evidence of a primary tumor in the lung. A radical subtotal gastrectomy with D2 lymph-node dissection was performed. Pathology showed a pure smallcell carcinoma with proper muscle invasion and with metastasis in 1 out of 36 lymph nodes (T2aN1M0).
우상복부 통증을 주소로 내원한 10세 남아의 대망 경색 1예
박재용,유리타,김도중,유지형,Park, Jae-Yong,Yu, Ri-Ta Miyoung,Kim, Do-Joong,Yoo, Jee-Hyoung 대한소아소화기영양학회 2009 Pediatric gastroenterology, hepatology & nutrition Vol.12 No.1
저자들은 급성 복통을 주소로 내원한 10세 남아에서 복부 초음파와 복부 전산화단층촬영을 통하여 대망 경색을 진단하였으며 항생제 및 진통제 등의 보존적인 치료로 증상의 완화를 경험하였기에 문헌고찰과 함께 보고하는 바이다. An omental infarctions is an uncommon cause of an acute abdomen and a rare entity in children. The etiology is still unclear and the symptoms mimic acute appendicitis. We recently encountered a case of a 10-year-old boy who had a previous surgical history of a manual reduction for intussusception. He complained of abdominal pain and right upper quadrant tenderness without fever or anorexia. An abdominal ultrasonography suggested an omental infarction and computed tomography confirmed the diagnosis. Conservative management was adopted with a rapid and uneventful recovery. Non-operative treatment is a safe and effective treatment of choice for omental infarction.
김원현(Won-Hyun Kim),이수목(Soo-Mok Lee),배종국(Jong-Gug Bae),김도중(Do-Joong Kim) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
A valve train dynamics of newly developed medium speed diesel engine was measured and analyzed. OHV-type valve train is represented by 7-DOF lumped mass model and distributed parameter model for the dynamic simulation. Analysis results with the given cam profiles were compared with the measured valve displacements, accelerations and acting forces. Based on these results, dynamic characteristics of valve train were investigated and the performance and safety were also evaluated. To improve the analysis accuracy, contributions of design parameters(mass and stiffness) to the dynamic behavior were investigated with the natural vibration analysis and sensitivity analysis. In addition, model tuning and optimization were performed from the measurement results.
레이저 비전을 이용한 2단 가변밸브 리프트 모듈의 3D 조립검사에 대한 연구
웬후쿠옹(Huu-Cuong Nguyen),김도중(Do-Joong Kim),이병룡(Byung-Ryong Lee) 대한기계학회 2017 大韓機械學會論文集A Vol.41 No.10
본 논문에서는 2단 가변 밸브 리프트 모듈의 조립불량 검사를 수행하기 위하여, 레이저 비전 기반의 높이 측정 시스템을 개발하였다. 측정방식은 레이저 비전 센서 모듈을 이용하여 삼각 측량법의 원리에 기초하여 3차원 점군집(point cloud) 데이터를 수집하고, 이를 바탕으로 밸브 위치의 높이 차이를 계산하였다. 본 논문에서는 먼저, 측정 시스템의 구성과 제안된 높이 측정 알고리즘을 설명하였다. 그리고, 레이저 비전 기반의 3차원 측정을 위한 실험장치를 구성하였다. 마지막으로, 실험장치의 정확성과 반복성을 검증하기 위해서, 2단 가변 밸브 리프트 모듈에서의 래쉬조정기 및 밸브간의 고저 차이를 측정하는 실험들을 여러 번 수행하였다. 실험 수행결과, 제안된 레이저 비전 기반의 높이 측정 시스템은 2단 가변밸브 리프트 모듈 조립 검사에 대한 높은 정확성, 반복성 및 안정성을 확보하고 있음을 확인할 수 있었다. A laser-vision-based height measurement system is developed and implemented for the inspection of twostep variable valve lift module assemblies. The proposed laser-vision sensor module is designed based on the principle of laser triangulation. This paper summarizes the work on 3D point cloud data collection and height difference measurements. The configuration of the measurement system and the proposed height measurement algorithm are described and analyzed in detail. Additional measurement experiments on the height differences of valves and lash adjusters of a two-step variable valve lift module were implemented repeatedly to evaluate the accuracy and repeatability of the proposed measurement system. Experimental results show that the proposed laser-vision-based height measurement system achieves high accuracy, repeatability, and stabilization for the inspection of two-step variable valve lift module assemblies.