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정해찬,김한겸,김석,한창,Jeong, Hae-Chan,Kim, Han-Kyum,Kim, Seok,Han, Chang 척추신경추나의학회 2010 척추신경추나의학회지 Vol.5 No.1
Objectives: To investigate the change of the cervical spine curvature after whiplash injury. Methods: Clinical study carried out in 46 patients who already had neck pain and took a cervical lateral X-Ray in Jaseng Oriental hospital. these patients had whiplash injury whitin one year. We followed up the cervical lateral X-Ray after that. Cervical spine curvature was measured using four measuring method. Type of cervical spine curvature was analyzed by Jochumsen method, Ishihara Index. T-test was used. Results: By Jackson's Angle and Cobb's angle, it is tend to be more Iordotic curvature after whiplash injury. In Jochumsen method, Ishihara Index the cervical spine curvature was significantly increased their Iordotic angle(P<0.05). Conclusion: The results suggest that after whiplash injury, patients cervical curvature change more Iordortic curve.
CT 영상에서 WT-GAN 모델을 이용한 효율적인 잡음제거
정해찬(Hae Chan Jeong),임동훈(Dong Hoon Lim) 한국컴퓨터정보학회 2024 韓國컴퓨터情報學會論文誌 Vol.29 No.5
CT 촬영 시 방사선량을 줄이면 피폭 위험성을 낮출 수 있으나, 영상 해상도가 크게 저하 될 뿐 아니라 잡음(noise) 발생으로 인해 진단의 효용성이 떨어진다. 따라서, CT 영상에서의 잡음제거는 영상복원 분야에 있어 매우 중요하고 필수적인 처리 과정이다. 영상 영역에서 잡음과 원래 신호를 분리하여 잡음만을 제거하는 것은 한계가 있다. 본 논문에서는 웨이블릿 변환 기반 GAN 모델 즉, WT-GAN(wavelet transform-based GAN) 모델을 이용하여 CT 영상에서 효과적으로 잡음 제거하고자 한다. 여기서 사용된 GAN 모델은 U-Net 구조의 생성자와 PatchGAN 구조의 판별자를 통해 잡음제거 영상을 생성한다. 본 논문에서 제안된 WT-GAN 모델의 성능 평가를 위해 다양한 잡음, 즉, 가우시안 잡음(Gaussian noise), 포아송 잡음 (Poisson noise) 그리고 스펙클 잡음 (speckle noise)에 의해 훼손된 CT 영상을 대상으로 실험하였다. 성능 실험 결과, WT-GAN 모델은 전통적인 필터 즉, BM3D 필터뿐만 아니라 기존의 딥러닝 모델인 DnCNN, CDAE 모형 그리고 U-Net GAN 모형보다 정성적이고, 정량적인 척도 즉, PSNR (Peak Signal-to-Noise Ratio) 그리고 SSIM (Structural Similarity Index Measure) 면에서 우수한 결과를 보였다. Reducing the radiation dose during CT scanning can lower the risk of radiation exposure, but not only does the image resolution significantly deteriorate, but the effectiveness of diagnosis is reduced due to the generation of noise. Therefore, noise removal from CT images is a very important and essential processing process in the image restoration. Until now, there are limitations in removing only the noise by separating the noise and the original signal in the image area. In this paper, we aim to effectively remove noise from CT images using the wavelet transform-based GAN model, that is, the WT-GAN model in the frequency domain. The GAN model used here generates images with noise removed through a U-Net structured generator and a PatchGAN structured discriminator. To evaluate the performance of the WT-GAN model proposed in this paper, experiments were conducted on CT images damaged by various noises, namely Gaussian noise, Poisson noise, and speckle noise. As a result of the performance experiment, the WT-GAN model is better than the traditional filter, that is, the BM3D filter, as well as the existing deep learning models, such as DnCNN, CDAE model, and U-Net GAN model, in qualitative and quantitative measures, that is, PSNR (Peak Signal-to-Noise Ratio) and SSIM (Structural Similarity Index Measure) showed excellent results.
추나요법과 침치료를 이용한 특발성 척추측만증의 보존적 치료 치험 2례
염선규,진은석,정해찬,김한겸,이진혁,Yeom, Sun-Kyu,Jin, Eun-Seok,Jeong, Hae-Chan,Kim, Han-Kyum,Lee, Jin-Hyuk 척추신경추나의학회 2010 척추신경추나의학회지 Vol.5 No.2
Objectives : The propose of this study is to compare X-ray Cobb각 and clinical symptoms. Methods : Clinical datas were compared Cobb각 with X-ray Full spine A.P. and lateral view. Results : After treatment, One case, the L-spine Cobb각 correctability was 93.76%, the other case, the C-T spine Cobb각 correctability was 37.49%, the T-L spine Cobb각 correctability was 85.83%. Conclusions : The result suggest that chuna and acupuncture therapy was effective treatment on patients with idiopathic scoliosis. Also we experienced improvement of symptoms to this patient.
디스크 탈출증 진단 환자에 있어서 장요근 치료군과 비치료군의 호전도 비교연구
김석,윤현석,반효정,정해찬,염선규,진은석,김한겸,정성엽,Kim, Seok,Yoon, Hyun-Seok,Bahn, Hyo-Jung,Jeong, Hae-Chan,Yeom, Sun-Kyu,Jin, Eun-Seok,Kim, Han-Kyum,Jung, Sung-Yub 척추신경추나의학회 2009 척추신경추나의학회지 Vol.4 No.2
Objectives : This study is designed to find out the influence of acupuncture treatments on Iliopsoas muscles of disc herniated patients. Method : Control group took usual acupuncture therapies and sample group took acupuncture therapies on their Iliopsoas muscles and usual acupuncture therapies. To Conclude the results, we studied Numerical Rating Scale(NRS) score and changes of SLR-test angle statistically. Results : The improvement rate of the group who took Iliopsoas muscles and usual acupuncture therapies was higher than the group who only took usual acupuncture therapies. Conclusion : In this study, we found out that the treatment on Iliopsoas muscles is effective to low back pain patients.
척추 측만증 환자에서의 척추 만곡과 경추 및 요추 전만각, Ferguson각의 상관관계에 대한 고찰
김석,윤현석,반효정,정해찬,염선규,진은석,김한겸,Kim, Seok,Yoon, Hyun-Seok,Bahn, Hyo-Jung,Jeong, Hae-Chan,Yeom, Sun-Kyu,Jin, Eun-Seok,Kim, Han-Kyum 척추신경추나의학회 2010 척추신경추나의학회지 Vol.5 No.2
Objectives : This study is designed to find out the relationship of scoliotic curve, cervical lordosis, lumbar lordosis and Ferguson's angle. Method : The study was composed of 46 scoliosis patients who had single curvature(Group I) on their lumbar spine(Group I-A) or thoracic spine(Group I-B) and 38 patients who had double curvature(Group II) on their lumbar and thoracic spine. The patients were evaluated with X-ray findings of full spine AP and Lateral views and statistically analyzed. Results : 1. Group II showed a significant increase in scoliotic curve angle as compared with Group I(P<0.05). 2. Scoliotic curve has a negative relationship with cervical lordosis in group II. Conclusion : 1. The patients who has double curvature of spine had higher scoliotic curve angle compared with who has single curvature. 2. The Scoliotic curve and cervical lordosis was statistically concerned on patients who has double curvature of spine.
요추 추간판 탈출증 환자의 보존적 치료 후 변화된 자기공명영상에 따른 임상적 고찰
권혁준 ( Hyeok Joon Kwon ),정해찬 ( Hae Chan Jeong ),김호준 ( Ho Jun Kim ),박영회 ( Young Hoi Park ),금동호 ( Dong Ho Keum ),이명종 ( Myeong Jong Lee ) 한방재활의학과학회 2009 한방재활의학과학회지 Vol.19 No.3
Objectives: To analyze the therapeutic outcomes of back pain modalities in patients with disc herniation according to the change of Magnetic Resonanse Imaging(MRI) whom were treated with herbal medicine, chuna, acupuncture, bee-venom acupuncture. Methods: Clinical outcomes of 35 patients diagnosed with lumbar disc herniation by MRI examination, treated conservatively, were analyzed according to MRI follow-up change. Patients underwent MRI examaintion at baseline and after 24th week of treatment. Patients are divided into three groups; improved, unchanged, worsened. 35 patients with lumbar disc herniation were treated with chuna therapy, acupuncture, bee-venom acupuncture once a week and took herbal medicine after a meal two times daily. The patients` clinical outcomes were assessed at baseline, 12th week, 24th week by Visual analogue scale(VAS), Oswestry disability index(ODI). Results: 1. MRI follow-up exams on regression of disc herniation resulted on 42.86% of cases by conservative treatment. 2. VAS(low back pain and sciatica) and ODI of disability of daily activities showed significant decrease in "improved" and "unchanged" groups compared to "worsened" group(P<0.05). 3. VAS(low back pain and sciatica) and ODI change after treatment did not show any relationship with MRI follow-up change(P<0.05). Conclusions: This study suggests that "improved" and "unchanged" groups compared to "worsened" group on MRI follow-up in patients with lumbar disc herniation were more effective when treated with herbal medicine, chuna therapy, acupuncture, bee-venom acupuncture. MRI follow-up change does not affect clinical changes in patients with lumbar disc herniation.
한방병원에 내원한 악관절 환자 52명에 관한 임상적 고찰
이진혁,설무창,민관식,진은석,정해찬,Lee, Jin-Hyuk,Sul, Moo-Chang,Min, Kwan-Sik,Jin, Eun-Seok,Jeong, Hae-Chan 척추신경추나의학회 2009 척추신경추나의학회지 Vol.4 No.1
Objectives : The propose of this study is to analyze characteristics with sex, age, motivation, symptom, Impression, treatment effect about temporomandibular disorder patients. Method : We performed a retrospective study of 52 patients who visited the Jaseng Hospital of Oriental Medicine, from August 2008 to October 2008. Result : Women occupied the most part. And 27 persons in the 20th are the most distribution of age. The majority of patients occured the symptom for no reason. In the distribution of symptoms, TMD pain(88.46%), Click sound(82.69%), neck pain(52.92%), headache(38.46%), lumbago(21.15%) happened. In the impression through radiological diagnoses, The majority of patients diagnosed Straightening of cervical lordotic curvature. Oriental medical treatment showed a very valuable effect on improvement of TMD symptom. Conclusion : The results showed a valuable treatment effect of temporotandibular disorders on Oriental medical treatment. Therefore this work have the necessity of continuous study and observation and will help us to understand the features of patients who visiting the TMD clinic of Jaseng Hospital of Oriental medicine.
불완전 방출성 요추 골절 환자에 보존적 치료를 시행한 치험 1례
김수영,민관식,김태헌,정해찬,전병철,이진혁,Kim, Su-Young,Min, Kwan-Sik,Kim, Tae-Hun,Jeong, Hae-Chan,Jun, Byung-Chul,Lee, Jin-Hyuk 척추신경추나의학회 2010 척추신경추나의학회지 Vol.5 No.2
Objectives : The propose of this study is to find out the clinical application of conservative treatment to the patient who has Lumbar incomplete burst fracture. Methods : We examined 1 patient with lumbar burst fracture who admitted Jaseng Hospital of Oriental Medicine. Results : In this study, the patient showed a certain degree of improvement in gait disturbance. Low back and leg pain were also reduced significantly after conservative oriental medical treatment. Conclusions : Conservative oriental medical treatment can be effective for improving symptoms of Lumbar incomplete burst fracture, decreasing pain.
김주환(Kim Ju-hwan),김민욱(Kim Min- Ouk),정해찬(Jeong Hae-chan),김지원(Kim Ji-won),임중선(Lim Joong-seon) 한국정보기술학회 2021 Proceedings of KIIT Conference Vol.2021 No.11
우리나라 전체에는 약 6백만 개의 맨홀이 있다. 맨홀은 도로의 침수 방지 등 다양한 목적을 위해 만들어졌으나, 해마다 개방, 함몰, 돌출된 맨홀 뚜껑과 맨홀 내 유해가스로 인한 인적 · 물적 사고가 발생하고 있다. 본 논문에서는 맨홀 안전사고 예방을 위해, 맨홀 뚜껑의 개폐 여부 및 맨홀 내 황화수소 농도의 측정을 위한 비접촉 상시 모니터링 시스템을 제안하고, 시스템 구성을 위한 최적의 센서 및 황화수소 측정 오차를 줄이기 위한 설계 방안을 제시한다. Manholes were created for various purposes, such as preventing flooding of roads, but human and material accidents occur every year due to open, dented, and protruding manhole covers and harmful gases in the manhole. In this paper, to prevent manhole safety accidents, we propose a non-contact constant monitoring system to measure whether the manhole cover is open or not and the concentration of hydrogen sulfide in the manhole, and propose an optimal sensor for system configuration and a design method to reduce the measurement error of hydrogen sulfide.
분리정제봉약침(Essential Bee Venom) 시술환자 64례에 대한 임상적 반응 보고
전용태 ( Yong-tae Jeon ),고웅 ( Ung Go ),김성문 ( Sung-moon Kim ),정해찬 ( Hae-chan Jeong ),한국인 ( Kuk-in Han ),신선호 ( Seon-ho Shin ),고연석 ( Youn-seok Ko ) 대한한의학회 한방재활의학과학회 2016 한방재활의학과학회지 Vol.26 No.3
Objectives The purpose of this study was to observe clinical reactions (itching, pain, etc.) after Essential Bee Venom (EBV) treatment. Methods This study was conducted 64 patients who had been injected with EBV in Korean Medicine Hospital of Woosuk University and Haeundae Ja-Seng Hospital of Korean Medicine from October 5, 2015 to February 20, 2016. We checked clinical reactions of treatment region. Results 8 patients (12.5%) complained of localized itching and 4 patients (6.3%) complained of localized pain after EBV injection. In itching reaction of patients, 2 patients (15.4%) occurred itching in head and neck, 4 patients (12.9%) occurred in lumbar and back. In pain reaction of patients, 2 patients (6.5%) occurred pain in lumbar and back, 1 patient (11.1%) occurred pain in upper limb. All clinical reactions were happened within 7 treatment times. Conclusions This study suggested EBV treatment can cause clinical reaction like itching and pain. Clinical reactions were more common in inpatients than outpatient, and all reactions were happened within 7 treatment times. Doctors should recognize physical reaction caused by EBV and explain to patient. Further studies are needed to more improved treatment. (J Korean Med Rehabil 2016;26(3):165-170)