정보화 도시개발의 발전동향 비교연구

李寧根,吳德成 忠南大學校 地域開發硏究所 1997 地域開發論叢 Vol.9 No.-

The purpose of this study is to analyze the developmental characteristics of teleport and to identify the strategic features. The first part of this study reviews the general concepts and developmental characteristics of teleport/intelligent city program. The theoretical review is also made in terms of fundamental components, related functions and facilities. In the second part of this study, four cases of teleport(New York, Docklands of London, Amsterdam, Osaka) have been analyzed in summary. In addition the detailed analysis and the comparison between Taejon teleport and two other major teleports(Minato Mirai 21 in Japan, Multimedia Super Corridor in Malaysia) have been made in terms of fundamental objects, types of development, main industries, location, facilities and traffic infrastructures. In the third part of this study, the general features of teleport are identified and the policy implications for Taejon teleport are suggested in conclusion.

CT-Guided Percutaneous Transthoracic Localization of Pulmonary Nodules Prior to Video-Assisted Thoracoscopic Surgery Using Barium Suspension

이녕근,박창민,강창현,전윤경,추지영,이현주,구진모 대한영상의학회 2012 Korean Journal of Radiology Vol.13 No.6

Objective: To describe our initial experience with CT-guided percutaneous barium marking for the localization of small pulmonary nodules prior to video-assisted thoracoscopic surgery (VATS). Materials and Methods: From October 2010 to April 2011, 10 consecutive patients (4 men and 6 women; mean age, 60 years) underwent CT-guided percutaneous barium marking for the localization of 10 small pulmonary nodules (mean size, 7.6 mm; range, 3-14 mm): 6 pure ground-glass nodules, 3 part-solid nodules, and 1 solid nodule. A 140% barium sulfate suspension (mean amount, 0.2 mL; range, 0.15-0.25 mL) was injected around the nodules with a 21-gauge needle. The technical details, surgical findings and pathologic features associated with barium localizations were evaluated. Results: All nodules were marked within 3 mm (mean distance, 1.1 mm; range, 0-3 mm) from the barium ball (mean diameter, 9.6 mm; range, 8-16 mm) formed by the injected barium suspension. Pneumothorax occurred in two cases, for which one needed aspiration. However, there were no other complications. All barium balls were palpable during VATS and visible on intraoperative fluoroscopy, and were completely resected. Both the whitish barium balls and target nodules were identifiable in the frozen specimens. Pathology revealed one invasive adenocarcinoma, five adenocarcinoma-in-situ, two atypical adenomatous hyperplasias, and two benign lesions. In all cases, there were acute inflammations around the barium balls which did not hamper the histological diagnosis of the nodules. Conclusion: CT-guided percutaneous barium marking can be an effective, convenient and safe pre-operative localization procedure prior to VATS, enabling accurate resection and diagnosis of small or faint pulmonary nodules. Objective: To describe our initial experience with CT-guided percutaneous barium marking for the localization of small pulmonary nodules prior to video-assisted thoracoscopic surgery (VATS). Materials and Methods: From October 2010 to April 2011, 10 consecutive patients (4 men and 6 women; mean age, 60 years) underwent CT-guided percutaneous barium marking for the localization of 10 small pulmonary nodules (mean size, 7.6 mm; range, 3-14 mm): 6 pure ground-glass nodules, 3 part-solid nodules, and 1 solid nodule. A 140% barium sulfate suspension (mean amount, 0.2 mL; range, 0.15-0.25 mL) was injected around the nodules with a 21-gauge needle. The technical details, surgical findings and pathologic features associated with barium localizations were evaluated. Results: All nodules were marked within 3 mm (mean distance, 1.1 mm; range, 0-3 mm) from the barium ball (mean diameter, 9.6 mm; range, 8-16 mm) formed by the injected barium suspension. Pneumothorax occurred in two cases, for which one needed aspiration. However, there were no other complications. All barium balls were palpable during VATS and visible on intraoperative fluoroscopy, and were completely resected. Both the whitish barium balls and target nodules were identifiable in the frozen specimens. Pathology revealed one invasive adenocarcinoma, five adenocarcinoma-in-situ, two atypical adenomatous hyperplasias, and two benign lesions. In all cases, there were acute inflammations around the barium balls which did not hamper the histological diagnosis of the nodules. Conclusion: CT-guided percutaneous barium marking can be an effective, convenient and safe pre-operative localization procedure prior to VATS, enabling accurate resection and diagnosis of small or faint pulmonary nodules.

都市鐵道 驛勢圈의 開發 方向에 關한 硏究 : 大田廣域市 都市鐵道 驛勢圈을 中心으로 Case Study of Subway Station District in Taejon

李寧根,吳德成 忠南大學校 地域開發硏究所 1995 地域開發論叢 Vol.7 No.-

This study airms to suggest the way of planning and development of subway station district. The major contents of this study are as folling : First, the characterictics, spheres of development influence, and forms of station district have been reviewed. Second, the conditions of subway stations(22 stations on the route Ⅰ, 8 transfer stations) in Taejon have been analyzed in terms of urban structure, the public transportation system, and the possibility of urban development. Finally, the planning directions of future development of selected station districts(Taejon Station, Dunsan City Hall Station, and Yusong Station) are presented.

양쪽턱밑샘과우측귀밑샘에발생한K¨uttner 종양의 다양한 초음파 소견: 1예 보고

이녕근,이병훈,황윤준,김수영,김용훈 대한초음파의학회 2010 ULTRASONOGRAPHY Vol.29 No.3

Chronic sclerosing sialadenitis or a Ku ¨ttner tumor is a benign inflammatory condition characterized by firm swelling of the salivary gland. This disease may clinically mimic Sjo ¨gren's syndrome or a salivary gland origin neoplasm. Various sonographic findings in patients with a Ku ¨ttner tumor were described in previous studies. Here, we describe a rare case of a 60-year-old man presenting with a non-tender right-sided parotid mass and swelling of both submandibular glands. A pathologic examination of the lesions in the right parotid gland and both submandibular glands indicated the presence of K¨uttner tumors of various sonographic appearances. 만성 경화성 침샘염 또는 K¨uttner 종양은 양성 염증성질환으로 침샘의 단단하고 붓는 특징을 보인다. 이 질환은Sj¨ogren 증후군 또는 침샘 기원 종양과 혼동될 수 있다. K¨uttner 종양에 대한 다양한 초음파 소견은 앞서 문헌들에서 보고된 바 있다. 저자들은 무통성의 우측 귀밑샘의 종괴와 턱밑샘이 붓는 증상을 보이는 60세 남자 환자에 대하여 서술하고자 한다. 병리 검사상 우측 귀밑샘과 양쪽 턱밑샘의 병변은 K¨uttner 종양으로 밝혀졌다. 이 환자에서 보인 다양한 초음파소견에 대하여 보고하고자 한다.

도시광장의 특성 연구 : 물리적 특성을 중심으로

趙惠景,李寧根 忠南大學校 地域開發硏究所 1996 地域開發論叢 Vol.8 No.-

The purpose of this study is to help giving direction to future square planning and design. For the study, it examines theoretical bases of urban squares in terms of physical aspects, particularly relevant to the size and dimension, depth/height ratio(D/H); the former is important factor for the comfortable activities of the invitors and(or) users, the latter affects sense of enclosure largely. Upon the framework from the examination the case, Piazza del Campidoglio in Rome, was analyzed. Because Piazza del Campidoglio is evaluated as one of the good example model of square, then this paper intended to draw a precept out of this case and for that reason analysed it in detail.

Computer-Aided Classification of Visual Ventilation Patterns in Patients with Chronic Obstructive Pulmonary Disease at Two-Phase Xenon-Enhanced CT

윤순호,구진모,Julip Jung,Helen Hong,박은아,이창현,이유경,진광남,Ji Yung Choo,이녕근 대한영상의학회 2014 Korean Journal of Radiology Vol.15 No.3

Objective: To evaluate the technical feasibility, performance, and interobserver agreement of a computer-aided classification (CAC) system for regional ventilation at two-phase xenon-enhanced CT in patients with chronic obstructive pulmonary disease (COPD). Materials and Methods: Thirty-eight patients with COPD underwent two-phase xenon ventilation CT with resulting wash-in (WI) and wash-out (WO) xenon images. The regional ventilation in structural abnormalities was visually categorized into four patterns by consensus of two experienced radiologists who compared the xenon attenuation of structural abnormalities with that of adjacent normal parenchyma in the WI and WO images, and it served as the reference. Two series of image datasets of structural abnormalities were randomly extracted for optimization and validation. The proportion of agreement on a per-lesion basis and receiver operating characteristics on a per-pixel basis between CAC and reference were analyzed for optimization. Thereafter, six readers independently categorized the regional ventilation in structural abnormalities in the validation set without and with a CAC map. Interobserver agreement was also compared between assessments without and with CAC maps using multirater κ statistics. Results: Computer-aided classification maps were successfully generated in 31 patients (81.5%). The proportion of agreement and the average area under the curve of optimized CAC maps were 94% (75/80) and 0.994, respectively. Multirater κ value was improved from moderate (κ = 0.59; 95% confidence interval [CI], 0.56–0.62) at the initial assessment to excellent (κ = 0.82; 95% CI, 0.79–0.85) with the CAC map. Conclusion: Our proposed CAC system demonstrated the potential for regional ventilation pattern analysis and enhanced interobserver agreement on visual classification of regional ventilation.