http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
JIN WOOK BAEK,Sung-Chul Jin,Sung Tae Kim,Young Jin Heo,Ji Yeon Han,Jung Hwa Seo,Sung Hwa Paeng,Jung Soo Kim,Hae Woong Jeong,Young-Gyun Jeong 대한뇌혈관외과학회 2019 Journal of Cerebrovascular and Endovascular Neuros Vol.21 No.1
Objective : Selecting an appropriate guiding catheter to provide both sufficient supportability for working devices and sufficient distal navigability is essential for ensuring the success of a procedure. This study aimed to evaluate the advantages and disadvantages of using the ENVOY 6F distal access (DA) guiding catheter in coil embolization of anterior circulation cerebral aneurysms. Methods : We included 98 patients (72 [73.5%] women, median age: 63 [range: 25-84] years) who underwent endovascular coiling with the ENVOY 6F DA guiding catheter from May to November 2016. We analyzed data on patient demographics and the number of co-axial techniques to position the guiding catheter, initial and final location of the catheter, and complications related to the catheter. Results : The co-axial technique was used to position the ENVOY 6F DA guiding catheter in the internal carotid artery (ICA) in 20 cases (20.41%). The initial position of the ENVOY 6F DA guiding catheter involved the cervical ICA (79.6%), horizontal petrous ICA (17.3%), and vertical petrous ICA (3.1%). Final control angiograms after endovascular coiling showed proximal change in the final, compared to the initial, position of the ENVOY 6F DA guiding catheter in 25 cases (25.51%). Procedure-related complications were observed in nine patients (9.18%), involving vasospasm in all cases; however, there was no symptomatic case. Conclusion : The ENVOY 6F DA guiding catheter had relatively sufficient distal navigability without symptomatic procedural complications. However, the change in the catheter position after endovascular coiling denoted insufficient supportability.
Alternative Medical Treatment for Radioiodine-Refractory Thyroid Cancers
Paeng, Jin-Chul,Kang, Keon-Wook,Park, Do-Joon,Oh, So-Won,Chung, June-Key The Korea Society of Nuclear Medicine 2011 핵의학 분자영상 Vol.45 No.4
Thyroid cancer is one of the most rapidly increasing cancers in many countries. Although most thyroid cancers are differentiated cancers and easily treated with radioiodine (RI), a portion of differentiated and undifferentiated cancers is refractory not only to RI therapy, but also to radiotherapy and chemotherapy. Thus, various alternative therapies have been tested in RI-refractory thyroid cancers. These alternative therapies include two major categories: redifferentiation therapy and recent molecular target therapy. Several clinical trials have investigated these therapies. They demonstrated potential effects of the therapies, although the results have been somewhat limited so far. Thus, the future strategy for undifferentiated thyroid cancers will involve individualized, lesion-specific, and combined therapy. In this review, the basic mechanism of each redifferentiation and molecular target therapy is discussed, and results of recent clinical trials using these therapeutic agents are summarized.
Lee, Jong-Jin,Kang, Won-Jun,Paeng, Jin-Chul,Lee, Dong-Soo,Kim, Ki-Bong,Chung, June-Key,Lee, Myung-Chul The Korea Society of Nuclear Medicine 2010 핵의학 분자영상 Vol.44 No.2
Purpose We evaluated the short-term and mid-term differences in perfusion and function after off-pump and on-pump coronary artery bypass grafting (CABG) using gated myocardial single photon emission computed tomography. Materials and Methods A total of 70 patients with coronary artery disease who underwent CABG were included based on the propensity score matching results from 165 patients. Thirty-five patients underwent off-pump and 35 patients on-pump CABG. Rest $^{201}Tl$/dipyridamole stress $^{99m}Tc$-methoxyisobutylisonitrile gated single photon emission computed tomographies were performed preoperatively and postoperatively at short-term ($103{\pm}23$ days after surgery) and mid-term follow-up ($502{\pm}111$ days after surgery). Changes in left ventricular ejection fraction, end systolic volume, stress and rest segmental perfusion, and segmental wall thickening were compared between the two groups. The segments with preoperative rest $^{201}Tl$ uptake under 60% of maximum uptake were included in the segmental analysis. Results Left ventricular ejection fraction (P=0.001) and end systolic volume (P=0.008) showed significant improvement in both groups. There were no significant short-term and mid-term differences between the two groups in terms of left ventricular ejection fraction (P=0.309) and end systolic volume (P=0.938). Likewise, segmental rest (P=0.178) and stress perfusion (P=0.071), and systolic wall thickening (P=0.241) showed significant improvement in both groups with similar time courses. Conclusion Off-pump CABG resulted in significant improvements in left ventricular ejection fraction, end systolic volume, and regional myocardial perfusion and function that are comparable to on-pump CABG at shortterm and mid-term. Gated myocardial SPECT successfully revealed that off-pump CABG is as good as on-pump CABG from the viewpoint of myocardial perfusion and function.
만성 무릎관절 통증환자에서 내측 반월상연골 손상과 관절 퇴행성 변화의 감별을 위한 ^99mTc-MDP 무릎관절 SPECT의 진단기준
팽진철,정준기,정환정,유재호,강원준,소영,이동수,이명철,성상철,이명철 대한핵의학회 2003 핵의학 분자영상 Vol.37 No.2
목적 : 만성 무릎관절 통증환자에서 관절의 퇴행성 변화로 인하여 ^99mTc-MDP SPECT를 이용한 관절 내 장애의 진단성능이 떨어지게 된다. 이 연구에서는 내측 구획의 섭취 증가가 관찰될 때 이를 내측 반월상연골 손상(MMI)과 퇴행성 변화(DC)로 감별 진단하기 위한 진단기준을 찾고자 하였다. 대상 및 방법 : 3개월 이상의 만성 통증으로 무릎관절 SPECT를 시행하고 이후 관절경 검사를 통해 관절 병소의 확진을 받은 환자 중 SPECT 상 내측 구회에 섭취 증가를 보인 47명, 49예의 영상을 대상으로 하였다. SPECT 영상에서 내측 경골 고원부에 초승달 모양의 섭취가 관찰될 때 MMI로 진단하는 기준(진단기준 Ⅰ), 초승달 모양 섭취 양상에 따라 전측, 중앙측, 후측 및 미만성으로 구분하고 이 중 중앙측, 후측, 미만성만을 MMI로 진단하는 기준(진단기준 Ⅱ), 이에 더해 섭취의 정도를 등급화하여 내측 구획에서 대퇴골 부위보다 경골 고원부의 섭취가 더 높을 때만 MMI로 진단하는 기준(진단기준 Ⅲ)의 세 가지 진단기준을 설정하고 이들의 진단성능을 비교하였다. 결과 : MMI 진단의 예민도와 특이도가 진단기준 Ⅰ에서 각각 93%, 14%, 진단기준 Ⅱ에서 각각 89%, 38%, 진단기준 Ⅲ에서 75%. 67%로 형태학적 기준과 섭취 정도에 의한 기준을 첨가할수록 진단성능이 향상되었다. 결론 : 이 연구에서는 무릎관절 SPECT가 적용되는 실제 임상 적응중에 가까운 만성 무릎관절 통증에서, 퇴행성 변화와 관절 내 장애를 감별하는 향상된 진단기준을 제시하였다. 이를 통하여 선별검사로서 무릎관절 SPECT의 진단적 가치를 더욱 높일 것으로 기대된다. Purpose: In patients with chronic knee pain, the diagnostic performance of ^99mTc-MDP knee SPECT for internal derangement of knee is deteriorated due to degenerative changes. In this study, we tried to establish diagnostic criteria to differentiate medial meniscal injury (MMI) from degenerative change (DC) when the uptake is increased in medial compartment. Materials and Methods: A total of 49 knee SPECT of the patients with chronic (more than 3 months) knee pain, which showed increased ^99mTc-MDP uptake in the medial compartment, were included in this study. The diagnosis was confirmed by arthroscopy. On knee SPECT, 3 diagnosic criteria for MMI were investigated. In Criterion Ⅰ, MMI was diagnosed when crescentic uptake was observed in the medial tibial plateau. In Criterion Ⅱ, crescentic uptake was further classified into anterior, mid, posterior, and diffuse patterns, according to the location of maximal uptake; and only crescentic mid posterior, and diffuse patterns were diagnosed as MMI. In Criterion Ⅲ, MMI was diagnosed when medial tibial plateau showed higher activity then medial femoral condyle. The diagnostic performance of the 3 criteria was compared. Results: The sensitivity and specificity were 93% and 14% in Criterion Ⅰ, 89% and 38% in Criterion Ⅱ, and 75% and 67% in Criterion Ⅲ, respectively. Criterion Ⅲhad significantly improved diagnostic performance, especially, specificity. Conclusion: In this study, we established a practical diagnostic criterion to differentiate MMI from DC on knee SPECT. The result is helpful to improve the diagnostic value of knee SPECT as a screening test for chronic knee pain.
임신성 당뇨병 환자에서 글루코키나제 유전자의 췌도 B 세포 특이 프로모터 -30bp 부위의 변화
김진우(Jin Woo Kim),양인명(In Myung Yang),김성운(Sung Woon Kim),김영설(Young Seol Kim),최영길(Young Kil Choi),우정택(Jung Taek Woo),김세윤(Se Yoon Kim),오승준(Seung Joon Oh),팽정령(Jeon Ryung Paeng),장학철(Hak Chul Chang) 대한내과학회 1999 대한내과학회지 Vol.57 No.5
N/A Glucokinase is expressed only in both liver and pancreatic beta cells and has a key role in the regulation of glucose metabolism in these tissues. A number of gene defects associated with glucokinase gene and the cause of non-insulin-dependent diabetes mellitus are known, and the defects along the -30bp promoter site in particular are thought to be related to diabetes and glucose intolerance. To research on gene study related to diabetes, we looked into the relationship between the variation at -30bp of pancreatic beta cell specific glucokinase gene promoter and gestational diabetes mellitus(GDM) in Korea. Methods : Forty patients with GDM and 62 normal controls were studied. Genomic DNA was extracted from peripheral leukocyte of patients with GDM and normal controls. The nucleotide variation at -30 bp of pancreatic beta cell specific glucokinase gene promoter was analyzed by PCR-SSCP methods. The sequences of amplified DNA were confirmed with direct sequencing method. The clinical features and the response of insulin secretion to oral glucose were analyzed between patients with GDM according to genotypes. Results: Allelic frequency of position -30 bp of pancreatic beta cell specific glucokinase gene promoter did not differ between patients with GDM and normal subjects. However the frequency of G/A and A/A genotypes seemed to show a higher tendency in patients with GDM compare to the normal subjects. Clinical features, insulin response to oral glucose did not differ according to the type of variation at -30bp of pancreatic beta cell specific glucokinase gene promoter. Conclusion : These data suggested that the variation at -30 bp of pancreatic beta cell specific glucokinase gene promoter in patients with GDM are unlikely to be one of the possibilities of the genetic factors in the development of GDM. Therefore more sophisticated studies will be needed to elucidate the role of variation at -30bp of pancreatic beta cell specific glucokinase gene promoter in the insulin secretion to oral glucose. (Korean. J. Med 57:916-924, 1999)
Kim Jin Young,Suh Sung Ill,In Moon Kyo,Paeng Ki-Jung,Chung Bong Chul The Pharmaceutical Society of Korea 2005 Archives of Pharmacal Research Vol.28 No.9
An analytical method was developed for evaluating the cannabidiol (CBO), cannabinol (CBN), ${\Delta}^9-tetrahydrocannabinol$ $({\Delta}^9-THC)$ level in human hair using gas chromatography-mass spectrometry (GC-MS). Hair samples (50mg) were washed with isopropyl alcohol and cut into small fragments (< 1mm). After adding a deuterated internal standard, the hair samples were incubated in 1.0M NaOH for 10 min at $95^{\circ}C$. The analytes from the resulting hydrolyzed samples were extracted using a mixture of n-hexane-ethyl acetate (75:25, v/v). The extracts were then evaporated, derivatized, and injected into the GC-MS. The recovery ranges of CBD, CBN, and ${\Delta}^9-THC$ at three concentration levels were $37.9-94.5\%$ with good correlation coefficients $(r^2>0.9989)$. The intra-day precision and accuracy ranged from $-9.4\%\;to\;17.7\%$, and the inter-day precision and accuracy ranged from $-15.5\%\;to\;14.5\%$, respectively. The limits of detection (LOD) for CBD, CBN, and ${\Delta}^9-THC$ were 0.005, 0.002, and 0.006 ng/mg, respectively. The applicability of this method of analyzing the hair samples from cannabis abusers was demonstrated.