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MRI T2강조영상에서 측두하악관절 원판 후 조직의 상대적 신호 강도에 대한 연구
예영근,이상화,윤현중,Ye, Young-Geun,Lee, Sang-Hwa,Yoon, Hyun-Joong 대한악안면성형재건외과학회 2005 Maxillofacial Plastic Reconstructive Surgery Vol.27 No.5
The aim of this study is to evaluate the relative signal intensity of TMJ retrodiscal tissue in T2-weighted MRI as diagnostic marker of temporomandibular disorder(TMD). 58 temporomandibular joints from 29 TMD patients (14 men & 15 women) were evaluated. The relative signal intensity of retrodiscal tissue in T2-weighted MRI was referenced to brain gray matter same size of the region of interest(ROI). The collected data was compared to disc positions (normal, anterior disc displacement with reduction, anterior disc displacement without reduction), the presence of joint effusion. The relative signal intensity of retrodiscal tissue was significantly increased when the disc was displaced without reduction. And the relative signal intensity of retrodiscal tissue was significantly increased when joint effusion was present. The results suggest that evaluating the relative signal intensity of TMJ retrodiscal tissue using a T2-weighted MRI is valuable as a non-invasive tool for diagnosing the procession of TMD.
급성 백혈병 환자에서 점막 질환과 진균감염의 외과적 처치
하원석,예영근,박재홍,표성운,윤현중,이상화,Ha, Won-Suk,Ye, Young-Geun,Park, Jae-Hong,Pyo, Sung-Un,Yun, Hyun-Jung,Lee, Sang-Hwa 대한악안면성형재건외과학회 2006 Maxillofacial Plastic Reconstructive Surgery Vol.28 No.2
It is generally known that mucositis which often occur on hematopoietic disease patients, shows local necrosis of oral mucosa when the CBC is below the normal range. But sometimes, the lesions are occasionally infiltrate into adjacent tissue. When the pathologic destructive expansion is occurred, differential diagnosis with fungal infection, one of opportunistic infections, is needed. This means treatment and prognosis can be changed according to the diagnosis. So the diagnostic process is more important in this hematopoietic disease patients. In case of fungal infection, the range of tissue damage can expand broadly, and also proper antifungal agent and surgical extirpation should be done. After operation, continuous antifungal therapy and observations are needed. We made a comparative study of following 2 cases of fungal infection appeared on the acute lymphatic leukemia patients to discuss what the proper surgical treatment and medications are, and when the proper surgical intervention time is.