디지털 공제방사선영상의 기하학적 보정에 관한 연구

임숙영,고광준 대한구강악안면방사선학회 2001 Imaging Science in Dentistry Vol.31 No.1

Purpose : To develop a new subtraction program for registering digital periapical images based on the correspondence of anatomic structures. Materials and Methods : The digital periapical images were obtained by Digora system with Rinn XCP equipment after translation of 1-16 mm, and rotation of 2-20°at the premolar and molar areas of the human dried mandible. The new subtraction program, NIH Image program and Emago/Advanced program were compared by the peak-signal-to noise ratio(PSNR). Results : The new subtraction program was superior to NIH Images program and Emago/Advanced program up to 16 mm translation and horizontal angulation up to 4°. Conclusion : The new subtraction program can be used for subtracting digital periapical images.(Korean J Oral Maxillofac Radiol 2001;31:23-34)

마이크로 로봇을 위한 비젼 시스템 개발

石尙祐,林廣洙,李炅武 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

In this research, we have developed a new navigation scheme using computer vision technology. A line feature tacking-based scheme is developed in which the orientation of the line features on the ceiling are detected in the input image, and used for guiding the direction of motion of a robot. In order to detect line information robustly, preprocessing steps such as lens calibration, noise cancelling, feature enhancement are employed. An also, to enhance the accuracy and the speed, we employed Intel IPL(Image Processing Library) for the implementation. The developed vision-based navigation system is quite reliable so that it can be used in a variety of natural circumstances, for example, home, office, factory, and so on. The performance of the developed system has been tested in many real environments, and shows excellent results in both accuracy and speed.

전산화단층상을 이용한 측두하악관절의 삼차원 재구성상의 비교연구

임숙영,고광준 大韓口腔顎顔面 放射線學會 1993 Imaging Science in Dentistry Vol.23 No.2

The purpose of this study was to clarify the spatial relationship of temporomandibular joint and to an aid in the diagnosis of temporomandibular disorder, For this study, three-dimensional images of normal temporomandibular joints were reconstructed by computer image analysis system and three-dimensional reconstructive program integrated in computed tomography. The obtained results were as follows: 1. Two-dimensional computed tomograms had the better resolution than three dimensional computed tomograms in the evaluation of bone structure and the disk of TMJ. 2. Direct sagittal computed tomograms and coronal computed tomograms had the better resolution in the evaluation of the disk of TMJ. 3. The positional relationship of the disk could be visualized, but the configuration of the disk could not be clearly visualized on three-dimensional reconstructive CT images. 4. Three-dimensional reconstructive CT images had the smoother margin than three-dimensional images reconstructed by computer image analysis system, but the images of the latter had the better perspective. 5. Three-dimensional reconstructive images had the better spatial relationship of the TMJ articulation, and the joint spaces were more clearly visualized on dissection images.

신경주위 전파를 수반한 유선낭종암

임숙영,최은숙,김민숙,고광준 大韓口腔顎顔面 放射線學會 1992 Imaging Science in Dentistry Vol.22 No.2

This is a report of adenoid cystic carcinoma occurred in the palate in 30-year-old patient with a complaint of exophytic mass. The authore dignosed it as adenoid cystic carcinoma by the clinical examination, radiographic findings and histopathological findings. The obtained results are as follows ; 1. In clinical examination, asymptomatic exophytic mass of palate was observed. 2. in radiographic findings, soft tissue mass infiltrated the left maxillary sinus, nasal cavity, infraorbital fossa, hard palate, pterygopalatine fossa and pterygoid plate, and enhanced soft tissue mass was also observed in CT. 3. In histopathological findings, tubular and solid patterns of glandular structures were observed and the infiltration of tumor cells into the nerve fibers was also observed. 4. Two years after radical surgery, radiation therapy and chemotherapy, the perineural spread to orbital area was observed. 5. Much longer follow-up than 5 years in needed for early diagnosis off recurrence and distant metastasis.

烏梅(Mume Fructus)水性엑스의 家兎 腸運動에 미치는 影響

高錫太,朴炫貞,任光楠 조선대학교 약학연구소 1994 藥學硏究誌 Vol.16 No.1

Effect of .Mume Fructus on intestinal function was investigated in rabbit, making use of its water extract. Mume Fructus water extract(MWE), of small doses(0.1, 0.3㎎/ml) produced contractile action but did not effect the spontaneous movement strips of high dose(1.0㎎/ml) elicited relaxative action and the inhibition of spontaneous movement in ileum strips. In lieum strips, MWE did not influence the contractile action but augmented the spontaneous movement to acetylcholine, MWE elicited the inhibition of contractile action and the agumentation of spontaneous movement to pilocarpine, MWE inhibited the both actions to histamine, did not affect to serotonin and blocked to dopamine. MWE exhibited the relaxation and the inhibition of spontaneous movement in longitadinal muscle of colon. In longitudinal muscle of colon, MWE inhibited both actions to acetylcholine, did not influence the contractile actions but augmented the spontaneous movement to histamine and serotonin. MWE elicited the increase of contractile actions and the decrease of spontaneous movement in circular muscle of colon. In circular muscle of colon, MWE augmented both actions to acetylcholine, inhibited both actions to serotonin, and then did not affect the contractile action but augmented the spontaneous movement to histamine.

미세수술법을 이용한 Neurovascular Dorsalis Pedis Free Flap Transfer : 1예 보고

김광회,이광석,조재림,박성봉 최신의학사 1981 最新醫學 Vol.24 No.9

腸機能에 關與하는 藥物의 作用에 對한 Verapamil의 影響

高錫太,鄭敬憙,任光楠 조선대학교 약학연구소 1994 藥學硏究誌 Vol.16 No.1

In ileum strips, verapamil did not influence the contractile action, inhibited the spontaneous movement to acetylcholine, verapamil inhibited both actions to pilocarpine and serotonin, and the contractile action but did not affect the spontaneous movement to histamine. In longitudinal muscle of colon, verapamil inhibited the contractile action to acetylcholine of small doses, did not affect that to acetylcholine of high dose, markedly inhibited the contratile action to pilocarpine, histamine and serotonin. In circular muscle of colon, verapamil augmented the spontameous movement to acetylcholine, wherease the contractile actions to acetylcholine was suppressed by only high dose of verapamil, verapamil did not influence the contractile action to pilocarpine and serotonin, enhanced the spontaneous movement caused by pilocarpine of high dose, and by serotonin but inhibited both action to histamine and spontaneous movement to pilocarpine of small dose.

양성형 골화석증

김경아,김숙영,고광준 대한구강악안면방사선학회 2000 Imaging Science in Dentistry Vol.30 No.1

A 37-year-old male with the complaint of intermittent gingival swelling and dull pain associated with the food impaction of the mandibular third molar area was referred to our department of Chonbuk National University Hospital. The dental history of the patient showed that he had extracted the maxillary left third molar without complications two years ago. Intraoral and panoramic radiographs showed diffuse increased radiopacity of the maxilla and mandible. The trabecular pattern was obliterated. Postero-anterior skull and lateral skull radiographs showed thickening of cortical bone and diffuse increased radiopacity of the skull. Additional radiographs showed similar changes in the lumbar spine, clavicles, iliac bone and femur. However, no evidence of osteomyelitis was observed clinically and radiographically. Laboratory findings showed normal values of serum calcium, phosphorus, and alkaline phosphatase. Based on the radiographic examinations and the laboratory findings, final diagnosis was made as a benign osteopetrosis. (Korean J Oral maxillofc Radiol 2000; 30: 80-86)

K 강선 및 긴장대 강선을 이용한 원위 쇄골 제 2형 골절의 치료

정환용,이우석,전택수,김대환,김광균,임재우 대한골절학회 2003 대한골절학회지 Vol.16 No.2

목 적: 쇄골 윈위부 제 Ⅱ형 골절의 치료에 있어 견봉 쇄골 관절을 통과하지 않고 직접 골편을 고정시키는 K 강선 및 긴장대 강선을 이용한 고정술로 치료한 환자에서 임상 결과를 후향적으로 분석하여 보고하고자 한다. 대상 및 방법: 2000년 5월부터 2001년 5월까지 쇄골 원위부 제 Ⅱ형 골절로 관혈적 정복술 및 K 강선 및 긴장대 강선을 이용한 고정술을 실시한 12례 중 최소 1년 이상 추시가 가능한 11례를 대상으로 하였다. 임상적 평가를 위해 최종 추시에서 변형된 견관절 기능 평가법을 사용하여 결과를 분석하였고 골유합 상태, 합병증, 견관절 운동범위를 측정하였다. 결 과: 전례에서 골유합을 얻었으며, 수술 후 골 유합까지의 기간은 평균 10주 (8~12주)였다. 최종 추시 상 견관절의 운동범위는 모두 정상 소견이었고, 변형된 견관절 기능 평가상 우수 9례, 양호 2례였다. 결 론: 쇄골 원위부 제 Ⅱ형 골절에서 K 강선 및 긴장대 강선을 이용한 고정술은 좋은 치료 방법 중 하나로 사료된다. Purpose: This is retrospective study to analyze the clinical results of the usefulness of K-wires and tension band wiring that fix the fracture fragment directly without passing the acromioclavicular joint in distal clacivle type Ⅱ fractures. Materials and Methods: From May 2000 to May 2001, eleven patients with distal clavicle type Ⅱ fracture were treated by open reduction and internal fixation with K-wires and tension band wiring. The clinical results were analyzed according to modified shoulder rating scale for distal clavicle freacture. Radiological union, complication, and range of motion of the shoulder were assessed. Results: All fractures were united at 10 weeks (8~12 weeks) in average. Finally, full range of motion of the shoulder joint was achieved in all patients. No complication was found and the modified shoulder rating scale for distal clavicle fracture were as follows: excellent 9 and good 2. Conclusion: K-wires and tension band wiring can be a good treatment method for distal clavicle type Ⅱ fractures.

대형 화재로 인한 사상자의 손상 유형과 합병증 : 동인천 라이브호프 화재를 중심으로

신중호,김재광,염석란,신종환,민순식,임용수,양혁준,이근,황성연 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: High risks of fire alway exist for buildings in urban areas, especially those in downtown. Crowds, as well as more complex and larger structures, may cause more victims in the event of fire; therefore, emergency medical service plans must be established for such disastrous events. Methods: On the evening of October 30,1999, a fire broke out in downtown, Dong-Incheon Live-Hof restaurant; 56 people were killed and 76 were injured. Most of them were teenagers. We retrospectively reviewed the medical records of the victims, Results: 1) Among the 56 dead, 54 died from smoke inhalation, one from extensive burns, and one from sepsis during treatment. 2) Among the 76 injured, 70 patients suffered from smoke inhalation, 53 from burns, and 9 from several types of trauma (sprains, contusions, lacerations, abrasions, fractures, etc.). 3) Later complications were laryngeal edema, pulmonary edema, scar contracture, and hypoxic brain damage, and so forth. 4) Post traumatic stress syndrome was unexpectedly more prevalent in mildly to moderately injured survivors and witnesses than in seriously injured survivors. Conclusion: Many complications exist after a fire. Some may be resolved in time, but others may result in permanent sequelae. Early rescue, early triage, and early management during transport by emergency medical service (EMS) personnel can result in fewer complications and a lower mortality rate. Therefore, we propose the establishment of plans to be followed during various major disasters.