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정욱진 ( Wook Jin Chung ),최승원 ( Seung Won Choi ),이승근 ( Seung Keun Lee ),이상길 ( Sang Gil Lee ),권진욱 ( Jin Wuk Kwon ),최승혁 ( Seung Hyuk Choi ),송정식 ( Jung Sik Song ),이찬희 ( Chan Hee Lee ),송창호 ( Chang Ho Song ) 대한류마티스학회 1998 대한류마티스학회지 Vol.5 No.1
Sacroiliitis is a prototyical feature of the seronegative spondyloarthropathies. It has been reported rarely in patients with systemic lupus erythematosus. We report a case of bilateral sacroiliitis in a 26 year-old female who presented 5 out of 11 ARA criteria for systemic lupus erythematosus. She complained of right low back pain since 1 week after delivery. Plain roentgenogram, computed tomogram and magnetic resonance imaging revealed no evidence of subluxation or pyogenic infection that may be possibly related to delivery, but bilateral sacroiliitis especially more severe in the right side that showed concordantly increased uptake on bone scan. Also she had neither HLA DR-3 nor B-27 antigens and had no other clinical findings of limitation of motion of spine and chest expansion, which suggest that there is a less likelihood of coexistent ankylosing spondylitis. In this case, we suggested that sacroiliitis may be a infrequent manifestation of systemic lupus erythematosus.
정욱진 ( Wook Jin Chung ) 대한내과학회 2010 대한내과학회지 Vol.78 No.1
Most commonly encountered pulmonary hypertension is pulmonary venous hypertension (PVH) accompanying elevated left ventricular filling pressure. So, the treatment for the underlying left heart disease should be mainstay of PVH treatment. On the contrary, pulmonary arterial hypertension (PAH) is an `orphan` disease, which means a very rare one. To the date, PAH have been one of diseases showing high mortality rate. But, recently, `targeted therapies` were introduced and several novel treatment guidelines for PAH were recommended. This review discusses new insights into the recent trend focusing on novel therapies and the necessity of specialized referral centers for PAH in Korea. (Korean J Med 78:28-35, 2010)
김진호 ( Jin Ho Kim ),이승준 ( Seung Jun Lee ),이한철 ( Han Cheol Lee ),이진영 ( Jin Young Lee ),이영재 ( Young Jae Lee ),정욱진 ( Wook Jin Chung ),장혁재 ( Hyuk Jae Chang ) 대한내과학회 2012 대한내과학회지 Vol.83 No.4
Pulmonary arterial hypertension is a rare life-threatening disorder. Inherited cases of this disorder are known as heritable pulmonary arterial hypertension. Familial cases of heritable pulmonary arterial hypertension are caused by germline mutations of the bone morphogenetic protein receptor type 2 gene (BMPR), a type II receptor of the TGF-beta superfamily. This has not been reported in Korea. We report the first case of familial hereditable pulmonary arterial hypertension in Korea. The family has a mutation in exon12 of the BMPR2 gene (c.2695C > T, p.R899X). (Korean J Med 2012;83:494-497)
딥러닝 모델을 이용한 휴대용 무선 초음파 영상에서의 경동맥 내중막 두께 자동 분할 알고리즘 개발
최자영,김영재,유경민,장영우,정욱진,김광기,Choi, Ja-Young,Kim, Young Jae,You, Kyung Min,Jang, Albert Youngwoo,Chung, Wook-Jin,Kim, Kwang Gi 대한의용생체공학회 2021 의공학회지 Vol.42 No.3
Measuring Intima-media thickness (IMT) with ultrasound images can help early detection of coronary artery disease. As a result, numerous machine learning studies have been conducted to measure IMT. However, most of these studies require several steps of pre-treatment to extract the boundary, and some require manual intervention, so they are not suitable for on-site treatment in urgent situations. in this paper, we propose to use deep learning networks U-Net, Attention U-Net, and Pretrained U-Net to automatically segment the intima-media complex. This study also applied the HE, HS, and CLAHE preprocessing technique to wireless portable ultrasound diagnostic device images. As a result, The average dice coefficient of HE applied Models is 71% and CLAHE applied Models is 70%, while the HS applied Models have improved as 72% dice coefficient. Among them, Pretrained U-Net showed the highest performance with an average of 74%. When comparing this with the mean value of IMT measured by Conventional wired ultrasound equipment, the highest correlation coefficient value was shown in the HS applied pretrained U-Net.