이중 대립 쟁기피판을 이용한 유두 재건술: 증례보고

허찬영,은석찬,백롱민,민경원 대한성형외과학회 2007 Archives of Plastic Surgery Vol.34 No.4

Purpose: Nipple reconstruction is an important step in breast reconstruction after mastectomy. There are considerable number of reconstructive methods developed over the past years. Each of these has not only its own special advantages, but also limitations. Therefore, no single method has become the overwhelming favorite. Sometimes it seems to be compromised when the nipple must be located directly over a linear scar.Methods: A 48-year-old female patient received a central lumpectomy with circumareolar resection of the nipple areolar complex 4 months ago. The newly designed nipple must be positioned directly astride a scar. We drew two equal-sized rectangular flaps sharing a common limb on a transverse scar and the result was two opposing plow form. Each flap size was about 1.3 cm wide and 2.5 cm long. First we elevated the flap from the distal part at a deep dermal plane, then deepened the level of dissection to raise the dermal-fat flaps. The donor site could be closed directly without any dog-ear deformity. Then we folded down the elevated flaps and loosely sutured skin with nonabsorbable materials. Each flap inner side was approximated side by side. Finally we made new natural nipple with 6mm projection. We applied tattooing in the areola area with micropigmentation device after three months. Results: After ten months of follow-up periods, the nipple projection was stable and symmetric. The nipple projection was 3.1mm, compared with 2.8mm for the opposite nipple.Conclusion: Our experiences shows that this double opposing plow flap is a particularly useful and simple technique when there is a traverse scar crossing the center of the proposed nipple area.

노동조합이 생산성에 영향을 준 요인에 관한 실증적 분석

許贊寧 숭실대학교 1992 勞使關係論叢 Vol.2 No.1

임무형 지휘가 조직유효성에 미치는 영향 : 상사-부하 교환관계(LMX)의 조절효과를 중심으로

허찬영,김인수 공주대학교 KNU 기업경영연구소 2017 기업경영리뷰 Vol.8 No.3

The research focuses on effect of the mission command on organizational effectiveness, and moderator effect of leader-member exchange(LMX) on the relationship between the mission command and organizational effectiveness in military organizations. The purpose of this study address the usefulness of the mission command, especially emphasizing the strategy for enhancing and moderating the effect of mission command in military organizations. First of all, the study verified direct of the mission command on military organizational effectiveness. The results of the study show that there are significant positive relations between mission command(communication, tactical knowledge sharing, job expertise, authority & responsibility) and organizational effectiveness. Secondly, this study shows the moderating effect of leader-member exchange(LMX) between mission command(communication, tactical knowledge sharing, job expertise, authority & responsibility) and organizational commitment. This study suggests that mission command is need to be aggressively implemented by military organization in order to enhance and promote organizational commitment. Additionally, the high-rank commander and executive officer related on personnel that need to develop strategy to enhance organizational effectiveness. The limitations of this study and suggestions for future research are presented. 임무형 지휘는 우리 군이 추구하는 지휘철학이며 지휘개념으로 지휘의 근간을 이루고 있는 지휘의 운영 개념이다. 그럼에도 불구하고 학문적인 차원에서 임무형 지휘의 유효성을 검증하기 위한 노력은 많지 않았다. 본 연구는 군 조직에서 강조하고 있는 임무형 지휘가 조직유효성에 긍정적으로 유의한 영향을 미치고 있는지를 검증하기 위한 것이다. 또한 임무형 지휘를 조절하여 조직유효성을 강화하는 요인으로 상사-부하 교환관계(LMX)의 조절효과를 실증적으로 검증하고자 하였다. 임무형 지휘가 원활하게 구현되기 위해서는 조직문화, 제도 및 교리, 리더십 등 군 조직에 영향을 미치는 제반 환경들이 호의적으로 변화되어야 하며, 아울러 기본적으로 의사소통, 전술지식 공유, 업무 전문성, 권한과 책임 등의 전제조건이 충족되어야 한다. 따라서 임무형 지휘의 하위변인을 위의 4가지 전제조건으로 구성하여 각각의 하위변인이 조직유효성에 미치는 영향과 이들의 관계에서 상사-부하 교환관계(LMX)의 조절효과를 실증적으로 규명하였다. 연구결과 임무형 지휘의 하위변인인 의사소통, 전술지식 공유, 업무 전문성, 권한과 책임은 모두 조직유효성(부하의 조직몰입)에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 또한 임무형 지휘와 조직유효성 간의 관계에서 상사-부하 교환관계(LMX)의 조절효과를 검증한 결과 LMX가 임무형 지휘의 각 하위변인들을 조절하여 조직유효성에 유의한 영향을 미치는 것으로 확인되었다. 이러한 연구결과를 바탕으로 본 연구가 갖는 시사점과 향후 연구방향을 제시하였다.

폐절제술 후 발생한 기관지늑막 피부루에서 유리복직근피판을 이용한 치료

허찬영,백롱민,전상훈,민경희,은석찬 대한성형외과학회 2009 Archives of Plastic Surgery Vol.36 No.6

Purpose: The repair of complex chest wall defects presents a challenging problem for the reconstructive surgeon. In particular, a free flap is often required when the defect is large, in which case suitable recipient vessels must be found to insure revascularization. The authors report a case of persistent bronchopleural - cutaneous fistula developed after undergoing lobectomy for lung cancer. Methods: The defect area was repaired using a free vertical rectus abdominis muscle flap revascularized by microvascular anastomosis to the 6th intercostal pedicle. The flap obliterated the right chest cavity, closed the site of empyema drainage, and aided healing of a bronchopleural - cutaneous fistula. Results: The patient has remained healed for 14 months without any postoperative complications and recurrent infection or fistula. Conclusion: We suggest that a rectus abdominis musculocutaneus free flap and intercostal pedicle as a recipient could be a useful method for repair of chest defects.

Free Flap Coverage of Extensive Soft Tissue Defect in Cutaneous Aspergillosis: A Case Report

허찬영,은석찬,백롱민,민경원 대한의학회 2008 Journal of Korean medical science Vol.23 No.5

Isolated fungal soft-tissue infections are uncommon, but may cause severe morbidity or mortality. Aspergillosis infection is rare, but the frequency in increasing over the last two decades. Here, we present a patient with cutaneous aspergillosis of his right elbow with unusual clinical and radiological features suggestive of a malignant disease, which remained undiagnosed for an extended period of time. The patient presented with necrotic, black-colored skin ulcerations. We completely removed the skin ulcer with the surrounding erythematous skin lesion, and then we reconstructed the area with thoracodorsal perforator free flap. The biopsy specimen contained septate hyphae with dichotomous branching, which is morphologically consistent with a finding of Aspergillus. After surgery, we initiated antifungal medication therapy with amphotericin B and itraconazole. At the time of follow-up, the elbow with the reconstructed flap had fully healed, and no recurrent disease was found.

영국의 노사관계와 "제3의 길"

허찬영 한국기업경영학회 2005 기업경영연구 Vol.12 No.1

노사협의회 운영실태 및 활성화 방안

허찬영 한국고용노사관계학회 2000 한국노사관계학회 정책세미나 Vol.2000 No.10

최근 10년간 안면부 피부종양에 관한 임상적 관찰

허찬영,오갑성 인제대학교 1999 仁濟醫學 Vol.20 No.1S

1989년 3월부터 1998년 12월까지 만 10년 동안 인제대학교 의과대학 서울 백병원 성형외과에 내원한 환자중 병리조직 검사 결과 안면부 피부 종양으로 확진된 336예를 대상으로 연령 및 성별에 따른 분포. 안면부 미적 단위를 기준으로 한 종양의 종류와 발생 빈도를 조사하였다. Background: This is the first report of study deals with facial skin tumors evaluated by facial aesthetic zones. Objective: The purpose of this study is to investigate a recent 10 year period(1989-1998) of clinical observation of skin tumors on the face Method: We reviewed 336 cases of facial skin tumors January 1989 to December 1998, at Inje University Seoul Paik hospital. Results: 1) In the 336 cases of facial skin tumors, 312 cases(92.9%) were benign tumors, and 25cases(17.1% ) were malignant tumors. 2) Among the 336 cases, the most common tumor was epidermal inclusion cyst, which followed by intradermal nevus, lipoma, dermoid cyst, epidermoid cyst, neurofibroma, cavernous hemangioma, compound nevus, congenital melanocytic nevus, basal cell carcinoma, pilomatricoma, nevus sebaceus. 3) Tumor incidence of distribution by facial aesthetic units, the most common site was buccal area, which followed orbital, labial, auricular, frontal, neck, supraorbital, temporal, nasal, parotid-masseteric, infraorbital, mental, scalp.

욕창 감염의 세균 역학과 항생제 감수성

허찬영,김정윤,은석찬,백롱민,민경원 대한성형외과학회 2007 Archives of Plastic Surgery Vol.34 No.3

Purpose: Pressure sore wound develops inevitably in long-term, immobilized and hospitalized patients. Sore wound infection is common problem and makes healing process difficult. We aimed to identify the pathogens of the purulent discharge in sore wound and to obtain information for appropriate antibiotics through a sensitivity testMethods: The bacteriologic study was made on 120 cases of patients who admitted or visited our hospital from 2004 January to 2005 December for sore wound treatment. Culture material was collected in BBL transport media with cotton swab and cultured by MacConkey agar plate. The method of MIC by VITEK and Microscan was used for sensitivity test. Results: Among 120 specimens, organisms were isolated from 77(64.2%) cases. Gram positive organisms were cultured in 73 specimens, Gram negative organisms in 46 specemens, and fungi in 2 specimens. Mixed infection by Gram (+) and Gram (-) bacteria were observed in 34 specimens. Among them, S. aureus was the most common isolate in 24(31.2%) patients and 10 (13.0%) S. Aureus isolates were MRSA. The most prevalent Gram-negative organism was Escherichia coli in 20 patients(25.9%). Vancomycin and teicoplanin showed highest sensitivity to Gram-positive organisms and imipenem and amikacin to Gram-negative organisms.Conclusion: Pressure sore wound demands consideration of multimodal therapeutic aspects and these findings would be useful informations to physicians, nurses and clinical assistants in understanding the nature of sore wound and selecting appropriate antibiotics.

DCGAN 의 잠재 벡터 보간을 활용한 두 음성 합성 방법

허찬영,정재희 한국차세대컴퓨팅학회 2023 한국차세대컴퓨팅학회 학술대회 Vol.2023 No.06

기계 학습 및 딥러닝 기술의 발전은 문학 분야를 비롯한 다양한 예술 분야에서 인공지능이 그림을 그리고 소설을 쓰거나 음악을 작곡, 작사하는 것과 같이 큰 영향력을 끼치고 있다. 이 중 인공지능이 음악을 작곡, 작사하는 음성을 생성하는 분야에서도 이미지 생성에 특화된 GANs(Generative Adversarial Nets) 모델을 사용하여 음성을 생성하는 연구를 적용할 수 있다. 하지만 음성 데이터 자체로 학습하여 음성을 생성하는 데에는 GANs를 사용할 경우 적절한 음성 생성의 결과를 얻지 못한다. 따라서 음성을 이미지로 변환하여 GANs을 학습한 후, 이미지를 생성하여 이를 다시 음성으로 생성하는 방법으로 음성 생성을 할 수 있다. 본 연구에서는 CNN(Convolution Neural Network) 기반의 GANs 모델인 DCGAN(Deep Convolutional Generative Adversarial Network) 모델을 활용하여, 두 개의 생성된 음성 이미지에서 추출된 잠재 벡터 z들의 보간의 정도에 따라 생성된 이미지가 부드럽게 변하는 특징을 적용하여 음성 합성 방법을 제안한다. 두 개의 서로 다른 음성 포맷인 midi 파일과 wav 파일을 각각 이미지로 변환 후 모델을 학습시켰다. 두 포맷 모두 두개의 음성 이미지의 잠재 벡터의 보간 정도에 따라 생성된 이미지가 부드럽게 변환되었고, 각 보간 값의 정도에 따라 생성된 이미지들을 다시 음성으로 변환시켜 적절히 합성된 음성을 확인할 수 있었다.