• Journal of International Society for Simulation Surgery
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• 제1권2호
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• pp.62-66
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• 2014

Image registration is the process for finding the correct geometrical transformation that brings one image in precise spatial correspondence with another image. There are limitations on the visualization of simple overlay between two different modality images because two different modality images have different anatomical information, resolution, and viewpoint. In this paper, various image registration methods and their applications are introduced. With the recent advance of medical imaging device, image registration is used actively in diagnosis support, treatment planning, surgery guidance and monitoring the disease progression.

• Journal of Information Technology Applications and Management
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• 제14권3호
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• pp.137-149
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• 2007

Most of hospitals, especially small-scale hospitals, have tried to get customers through the Internet as what companies have done recently. There are various attempts that increase visits to one's web-site in plastic surgery hospitals. However, in plastic surgery, there have been few studies on which an attribute contributes to increase the number of web-site visit. In order to derive the important attributes on the number of visit, we compared functional attributes of 30 high-visit plastic surgery web-sites with those of 30 low-visit web-sites using statistical and data mining methods. For analysis, three methods have conducted including Multiple Discriminant Analysis (statistical method), Decision Trees (data mining method), and Artificial Neural Network (data mining method). Furthermore, results of each method have been evaluated one another. The result of this study shows that a few attributes like 'Simulating cyber plastic surgery program', 'recommendation of information' explain the number of the visitors between high and low visit web-site. The methodology employed in this study provides an efficient way of improving satisfaction of visitors of plastic surgery website.

• 대한디지털의료영상학회논문지
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• 제11권1호
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• pp.43-50
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• 2009

Geometry calculation Using Abdominal internal organ image from traditional laparoscopy or robotic surgery system we can make depth informations through measured 3D structure informations is very helpful to doctors, depth information is mare useful then others that use traditional laparoscopy or robotic surgery system to many doctors. however, traditional method are incomplete. less experienced doctors make much mare prohability of mistake. Hence, 3D information of organ is very helpful to the less experienced doctors. it will be greate role of reducing medical accidents and surgical time. We can get 3D informations using geometrical calculation method in robotic surgical system. also suggested method is needed in traditional surgical method without the need to create a new system, finally, We can get 3D information from traditional system without any new system, it take advantage in cost and create high efficiency. mare information will provided to many doctors.

• Perspectives in Nursing Science
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• 제13권1호
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• pp.48-57
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• 2016

Purpose: The purpose of this study was to investigate the research methods, contents, and effects of providing information to alleviate patients' anxiety during outpatient surgery. Methods: The PICOTS-SD (Participants, Interventions, Comparisons, Outcomes, Time, Setting, Study design) was used and 11 randomized controlled trials studies that met the inclusion and exclusion criteria were selected. For assessing the quality of the studies, the Cochrane Risk of Bias tool was used. Results: In the 11 selected studies, intervention methods included verbal, written paper, video, and websites, and the outcome variable was anxiety. Regarding the effectiveness of providing information on anxiety, the result of the present study was ambivalent. Conclusion: This study showed the current trends in providing information as an intervention. However, randomized controlled trials are further needed in Korea, to verify the effects of such an intervention on patients' anxiety.

• Archives of Plastic Surgery
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• 제32권2호
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• pp.161-167
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• 2005

Recently, as standard of living has been improving and awareness of well-being has been generalized, people's desire pursuing beauty has been spreading across the world. We made a survey with 184 graduating high school girls in December 2003. According to the survey. 57.6% of them knew about plastic surgery, 41.8% of them knew well about whole field of plastic surgery, and 60.3% of them wanted to have an aesthetic surgery. 44.6% got an information about an aesthetic surgery from general public and 27.6% from TV, respectively. Regarding the use of aesthetic surgery, 59.8% answered that it makes them more confident about themselves rather than just to be beautiful. 78.8% of them have complaints about how they look. Finally, as the personal desire to make themselves look beautiful to others increases, so does the interest in aesthetic plastic surgery. In conclusion, as the society of plastic and reconstructive surgeons, we still need more effort for the correct cognition and awareness of plastic surgery among general public.

• 로봇학회논문지
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• 제3권1호
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• pp.58-67
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• 2008

This study developed a novel augmented reality interface for minimally invasive surgery. The augmented reality technique can alleviate the sensory feedback problem inherent to laparoscopic surgery. An augmented reality system merges real laparoscope image and reconstructed 3D patient model based on diagnostic medical image such as CT, MRI data. By using reconstructed 3D patient model, AR interface could express structure of patient body that is invisible outside visual field of laparoscope. Therefore, an augmented reality system improved sight information of limited laparoscope. In our augmented reality system, the laparoscopic view is located at the center of a wide-angle concave screen and reconstructed 3D patient model is displayed outside the laparoscope. By using a joystick, the laparoscopic view and the reconstructed 3D patient model view are changed concurrently. With our augmented reality system, the surgeon can see the peritoneal cavity from a wide angle of view, without having to move the laparoscope. Since the concave screen serves immersive environments, the surgeon can feel as if she is in the patient body. For these reasons, a surgeon can recognize easily depth information about inner parts of patient and position information of surgical instruments without laparoscope motion. It is possible for surgeon to manipulate surgical instruments more exact and fast. Therefore immersive augmented reality interface for minimally invasive surgery will reduce bodily, environmental load of a surgeon and increase efficiency of MIS.

• Archives of Plastic Surgery
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• 제37권5호
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• pp.561-564
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• 2010

Purpose: According to the data presented by ministry of justice, a number of foreign workers in Korea is approximately 700 thousands and among them 22 thousands are illegal workers. We would like to provide the basic information the foreign workers by analyzing clinical contents. Methods: 1456 patients who visited the hospital were reviewed by nationality, medical department, gender and age. 62 patients have visited plastic surgery department and they were additionally reviewed by diagnosis, chief complant and operation. Results: Mongolians were 388 cases (26.7%), followed by Chineses with 452 cases (31.1%). General surgery had 264 visits (18.1%) followed by internal medicine with 388 visits (26.6%). In gender grouping, 781 patients were males and 675 patients were females. Hand, face and extremity injuries were common in plastic surgery field but many foreign worker patients also wanted to take aesthetic surgery such as scar revision, blepharoplasty and augmentation rhinoplasty. Conclusion: It has been twenty years since foreign workers have come to the Korean society. In the past foreign workers were mostly neglected. However with the vast improvement in labor and welfare related services, demands for plastic surgery, especially aesthetic surgery are increasing among foreign workers. Therefore plastic surgeons' continuous interest in foreign workers is required.

• Journal of Chest Surgery
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• 제54권5호
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• pp.433-435
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• 2021

Pleural adhesions are a major challenge in standard and nonintubated video-assisted thoracic surgery. The currently available imaging techniques help to assess the presence and extent of pleural adhesions, but do not provide information on tissue deformability, which is crucial for intraoperative management. In this report, we describe the utilization of real-time elastography mapping of pleural adhesions. This technique enabled us to detect areas with softer adhesions, and helped establish the surgical plan in a difficult case of a patient scheduled for nonintubated video-assisted thoracic surgery.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권10호
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• pp.2679-2691
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• 2012

In this paper, a high accuracy stereo reconstruction method for surgery instruments positioning is proposed. Usually, the problem of surgical instruments reconstruction is considered as a basic task in computer vision to estimate the 3-D position of each marker on a surgery instrument from three pairs of image points. However, the existing methods considered the 3-D reconstruction of the points separately thus ignore the structure information. Meanwhile, the errors from light variation, imaging noise and quantization still affect the reconstruction accuracy. This paper proposes a method which takes the structure information of surgical instruments as constraints, and reconstructs the whole markers on one surgical instrument together. Firstly, we calibrate the instruments before navigation to get the structure parameters. The structure parameters consist of markers' number, distances between each markers and a linearity sign of each instrument. Then, the structure constraints are added to stereo reconstruction. Finally, weighted filter is used to reduce the jitter. Experiments conducted on surgery navigation system showed that our method not only improve accuracy effectively but also reduce the jitter of surgical instrument greatly.

• 대한치과의사협회지
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• 제50권2호
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• pp.72-82
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• 2012

악교정 수술에 대한 관심이 증가되고, 환자 또한 증가되는 시점에서, 환자에 대한 정확한 진단이 우선되어야 하며, 환자의 요구에 의해서 수술시기가 죄우되는 것이 아니라, 술전 교정치료를 하고 수술하는 경우와 수술을 일찍하고 후에 교정치료를 하는 경우에 대한 결정은 치과교정의사와 구강악안면외과의사가 함께 최신의 다양한 방법 등을 통한 정확한 분석과 예측과정 후에 각각의 환자에 맞는 수술계획을 수립한 후 시행하여야 하며, 무엇보다도 최선의 치료 결과를 얻는 것이 가장 중요하다.