http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
림프절의 자기공명영상의 특징: 가토에서 T1과 T2 강조영상의 비교
이기창,최민철,최호정,윤정희,최승홍,문우경,정진욱,Lee, Ki-chang,Choi, Min-cheol,Choi, Ho-Jung,Yoon, Jung-hee,Choi, Seong-hong,Moon, Woo-kyung,Chung, Jin-Wook 대한수의학회 2004 大韓獸醫學會誌 Vol.44 No.2
The detection of lymph node metastasis is an important step in tumor staging and is significant for therapy planning. It has been challenged to yield an appropriate image with diagnostic methods such as Magnetic Resonance (MR) and Computed Tomography (CT). Though CT has been used widely and accessed easily to show internal organs, it can hardly provide difference between lymph node and adjacent vessel or fat tissue. It has been well established that MR can reveal the subtle discrepancy within soft tissue. This study investigated the suitability of MR lymph node imaging without contrast enhancement by comparison of T1-weighted image (T1WI) and T2- weighted image (T2WI) in ten normal rabbits. According to the pulse sequence optimized from preliminary study, T1-weighted spin-echo (repetition time/echo time=400/12 ms) and T-2 weighted fast spin-echo (repetition time/echo time=3500/84 ms) images covering the hind limbs and pelvic region were acquired at 1.5 T. Two radiologists scrupulously evaluated the MR images in consensus. And signal intensity of lymph nodes was compared with that of adjacent fat. Statistical analysis showed that T1-weighted coronal image visualized the lymph nodes (iliac, superficial inguinal and popliteal lymph nodes) quickly and consistently rather than T2-weighted one. Conclusively, T1WI for evaluation of lymph nodes is moderately better than T2WI and appears to have potential for quick and sufficient mapping of the lymph nodes. In addition, this normal MR image of lymph nodes could be applied to further study for the evaluation of lymphatic system in abscess and tumor bearing animal model.
Sclerosing Adenosis Diagnosed by Needle Biopsy
Heon Jin Jung(정헌진),Won Shik Han(한원식),Hyeong-Gon Moon(문형곤),Soo Kyung Ahn(안수경),Ji-Sun Kim(김지선),Dong-Yong Noh(노동영),Jung-Min Chang(장정민),Nariya Cho(조나리야),Woo Kyung Moon(문우경),In-Ae Park(박인애),Hee-Chul Shin(신 대한종양외과학회 2012 Korean Journal of Clinical Oncology Vol.8 No.2
목적 : 본 연구는 침생검을 통해 진단 받은 경화성 선증에 대해 추가적인 수술 없이 경과 관찰했을 때의 잠재적 안정성을 알아보고자 하였다. 방법 : 1996년 1월부터 2010년 5월까지 침생검을 통해 경화성 선증으로 진단된 143명의 환자의 145개 병변을 대상으로 (core-needle biopsies 118례, vacuum-assisted biopsies 27례) 의무기록 검토를 토대로 한 후향적 고찰이다. 결과 : 환자들의 BI-RADS(The American College of Radiology Breast Imaging Reporting and Data System) 분류는 다음과 같다: C3(n=8), C4a(n=123), C4b(n=11), C4c(n=e), C5(n=1). 그 중 14명은 조직검사를 재시행하였고 BI-RADS 분류 C5이면서 영상의학적 소견과 병리학적 소견의 불일치를 보인 1명의 환자가 침윤성 유방암으로 진단되어 수술을 시행하였다. 나머지 환자들은 정기적인 초음파 검사 및 유방촬영술을 통해 경과 관찰하였고, 평균 추적관찰 기간 40개월 동안 144개의 병변의 최종 BI-RADS 분류는 다음과 같다: C1(n=5), C2(n=107), C3(n=32), 경과 관찰기간 동안 142명의 환자에서 악성 유방질환이 발견된 환자는 없었다. 결론 : 침생검을 통해 경화성 선증으로 진단된 환자에 있어서 추가적인 수술 없이 정기적인 검진을 통하여 경과 관찰하는 것은 잠재적 안전성을 가지고 있다. 하지만 조직검사와 영상검사 결과의 불일치 소견을 보이는 경우 수술적 생검을 통한 최종 진단이 필요하다. Background : The aim of this study was to assess the potential safety of follow up for patients diagnosed with sclerosing adenosis through needle biopsies without additional surgery. Patients and Methods : From January 1996 to May 2010, 145 lesions in 143 sclerosing adenosis patients who underwent core-needle biopsies (n=118), vacuum-assisted biopsies (n=27) in our institution were followed. Results : The American College of Radiology Breast Imaging Reporting and Data System (BI-BADS) classification in these patients was as follows : C3(n=8), C4a(n=123), C4b(n=11), C4c(n=e) and C5(n=1). After sclerosing adenosis was diagnosed by needle biopsy, 14 patients underwent re-biopsy. Only 1 patient who had BIRAD C5 sonographic features was diagnosed with invasive ductal carcinoma and surrounding ductal carcinoma in situ. The remaining 142 patients received regular medical exam with ultrasonography and/or mammography. 144 lesions’ BI-RADS category were C1(n=5), C2(n=107) and C3(n=32). With the median follow-up period of 40 months, none of the patients developed breast malignancy. Conclusions : Our study suggest that patients with sclerosing adenosis diagnosed by needle biopsies can be safely followed without additional surgery. However, in case of discordance with images and biopsy result, surgical excision for definite diagnosis is recommended.
문우경 대한핵의학회 2004 핵의학 분자영상 Vol.38 No.2
The two major classes of magnetic resonance (MR) contrast agents are paramagnetic contrast agents, usually based on chelates of gadolinium generating T1 positive signal enhancement, and super-paramagnetic contrast agents that use mono- or polycrystalline iron oxide to generate strong T2 negative contrast in MR images. These paramagnetic or super-paramagnetic complexes are used to develop new contrast agents that can target the specific molecular marker of the cells or can be activated to report on the physiological status or metabolic activity of biological systems. In molecular imaging science, MR imaging has emerged as a leading technique because it provides high-resolution three-dimension maps of the living subject. The future of molecular MR imaging is promising as advancements in hardware, contrast agents, and image acquisition methods coalesce to bring high resolution in vivo imaging to the biochemical sciences and to patient care. (Korean J Nucl Med 38(2):205-208, 2004)