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| 1 | Current status of radiofrequency ablation of hepatocellular carcinoma显示文摘Loco-regional treatments for hepatocellular carcinoma(HCC) are important alternatives to curative transplantation or resection.Among them,radiofrequency ablation(RFA) is accepted as the most popular technique showing excellent local tumor control and acceptable morbidity.The current role of RFA is well documented in the evidence-based practice guidelines of European Association of Study of Liver,American Association of Study of the Liver Disease and Japanese academic societies.Several randomized controlled trials have confirmed that RFA is superior to percutaneous ethanol injections in terms of local tumor control and survival.The overall survival after RFA is comparable to after surgical resection in a selected group of patients with smaller(< 3 cm) tumors.Currently,the clinical benefits of combined RFA with transarterial chemoembolization for intermediate stage HCC are increasingly being explored.Here we review the ongoing technical advancements of RFA and future potential. | Hyunchul Rhim Hyo K Lim Dongil Choi | 2010 | World Journal of Gastrointestinal Surgery2010，2，4： | 7 |
| 2 | Concurrent and subsequent radiofrequency ablation combined with hepatectomy for hepatocellular carcinomas显示文摘Partial hepatectomy has long been the standard treatment modality for patients with hepatocellular carcinoma(HCC),although the majority of patients with HCCs are not candidates for curative resection.Radiofrequency ablation(RFA) has been widely used as the preferred locoregional therapy.RFA and hepatectomy can be complementary to each other for the treatment of multifocal HCCs.Combining hepatectomy with RFA permits the removal of larger tumors while simultaneously ablating any smaller residual tumors.By using this combination treatment,more patients might become candidates for curative resection.For treating recurrent tumors involving the liver after hepatectomy,RFA has been performed recently instead of transcatheter arterial chemoembolization or ethanol ablation.Many retrospective studies on the combination of RFA and hepatectomy demonstrate favorable results of effectiveness and safety.However,further investigation of prospective design will be needed to confirm these encouraging results. | Dongil Choi Hyo K Lim Hyunchul Rhim | 2010 | World Journal of Gastrointestinal Surgery2010，2，4： | 6 |
| 3 | Detection of early gastric cancer using hydro-stomach CT:Blinded vs unblinded analysis显示文摘AIM:To evaluate the difference in diagnostic performance of hydro-stomach computed tomography(CT) to detect early gastric cancer(EGC) between blinded and unblinded analysis and to assess independent factors affecting visibility of cancer foci.METHODS:Two radiologists initially blinded and then unblinded to gastroscopic and surgical-histological findings independently reviewed hydro-stomach CT images of 110 patients with single EGC.They graded the visibility of cancer foci for each of three gastric segments(upper,middle and lower thirds) using a 4-point scale(1:definitely absent,2:probably absent,3:probably present,and 4:definitely present).The sensitivity and specificity for detecting an EGC were calculated.Intraobserver and interobserver agreements were analyzed.The visibility of an EGC was evaluated with regard to tumor size,invasion depth,gastric segments,histological type and gross morphology using univariate and multivariate analysis.RESULTS:The respective sensitivities and specificities [reviewer 1:blinded,20%(22/110) and 98%(215/220);unblinded,27%(30/110) and 100%(219/220)/reviewer 2:blinded,19%(21/110) and 98%(216/220);unblinded,25%(27/110) and 98%(215/220)] were not significantly different.Although intraobserver agreements were good(weighted κ = 0.677 and 0.666),interobserver agreements were fair(blinded,0.371) or moderate(unblinded,0.558).For both univariate and multivariate analyses,the tumor size and invasion depth were statistically significant factors affecting visibility.CONCLUSION:The diagnostic performance of hydrostomach CT to detect an EGC was not significantly different between blinded and unblinded analysis.The tumor size and invasion depth were independent factors for visibility. | Ki Jeong Park Min Woo Lee Ji Hyun Koo Yulri Park Heejung Kim Dongil Choi Soon Jin Lee | 2011 | World Journal of Gastroenterology2011，17，8： | 6 |
| 4 | High-risk esophageal varices in patients treated with locoregional therapy for hepatocellular carcinoma:Assessment with liver computed tomography显示文摘AIM:To assess the diagnostic performance of followup liver computed tomography(CT) for the detection of high-risk esophageal varices in patients treated with locoregional therapy for hepatocellular carcinoma(HCC).METHODS:We prospectively enrolled 100 patients with cirrhosis who underwent transcatheter arterial chemoembolization,radiofrequency ablation or both procedures for HCCs.All patients underwent upper endoscopy and subsequently liver CT.Three radiologists independently evaluated the presence of high-risk esophageal varices with transverse images alone and with three orthogonal multiplanar reformation(MPR) images,respectively.With endoscopic grading as the reference standard,diagnostic performance was assessed by using receiver operating characteristic(ROC) curve analysis.RESULTS:The diagnostic performances(areas under the ROC curve) of three observers with transverse images alone were 0.947 ± 0.031,0.969 ± 0.024,and 0.916 ± 0.038,respectively.The mean sensitivity,specificity,positive predicative value(PPV),and negative predicative value(NPV) with transverse images alone were 90.1%,86.39%,70.9%,and 95.9%,respectively.The diagnostic performances,mean sensitivity,specificity,PPV,and NPV with three orthogonal MPR images(0.965 ± 0.025,0.959 ± 0.027,0.938 ± 0.033,91.4%,89.5%,76.3%,and 96.6%,respectively) were not superior to corresponding values with transverse images alone(P > 0.05),except for the mean specificity(P = 0.039).CONCLUSION:Our results showed excellent diagnostic performance,sensitivity and NPV to detect high-risk esophageal varices on follow-up liver CT after locoregional therapy for HCC. | Hyojin Kim Dongil Choi Joon Hyeok Lee Soon Jin Lee Hangi Jo Geum-Youn Gwak Kwang Cheol Koh Moon Seok Choi Seonwoo Kim | 2012 | World Journal of Gastroenterology2012，18，35： | 4 |
| 5 | Flammable carbon nanotube transistors on a nitrocellulose paper substrate for transient electronics显示文摘短暂电子学代表包括能响应刺激以一种控制方式消失的材料的技术的一个新兴的班。与被设计在最长可能的时期上操作的常规电子设备相对照,短暂电子学被操作在一个短、明确的时期上典型地定义;当不再需要时,短暂电子学经历 self-deconstruction 并且完全消失。在这个工作,明确地,我们基于纸底层表明热地触发的短暂电子设备的制造一份硝化纤维素报纸。因为它由被暴露被 nitrating 纤维素形成到硝酸的高度易燃的部件组成,硝化纤维素纸经常在魔力的行为被使用。因此,没有生产任何残余,在硝化纤维素纸上制作的电子设备的完全、快速的破坏是可能的(即,灰) 。顷刻率能被控制收音机频率修改被用于银(Ag ) 的导致信号的电压抵抗加热器,它在硝化纤维素纸的背后上被印上。Ag 抵抗加热器被简单、便宜踩的制造准备,它不要求严厉化学药品或复杂热处理。为硝化纤维素纸底层上的电子学,我们采用了半导体的碳 nanotube (CNT ) 在为优异电、机械的性质的晶体管的网络隧道。 | Jinsu Yoon Juhee Lee Bongsik Choi Dongil Lee Dae Hwan Kim Dong Myong Kim Dong-II Moon Meehyun Lim Sungho Kim Sung-Jin Choi | 2017 | Nano Research2017，10，1： | 2 |
| 6 | Percutaneous radiofrequency ablation for early-stage hepatocellular carcinoma as a first-line treatment: long-term results and prognostic factors in a large single-institution series显示文摘 | Dongil Choi Hyo K. Lim Hyunchul Rhim Young-sun Kim Won Jae Lee Seung Woon Paik Kwang Cheol Koh Joon Hyoek Lee Moon Seok Choi Byung Chul Yoo | 2007 | European Radiology2007，，3： | 2 |
| 7 | Percutaneous Radiofrequency Ablation for Recurrent Hepatocellular Carcinoma After Hepatectomy: Long-term Results and Prognostic Factors显示文摘 | Dongil Choi MD Hyo K. Lim MD Hyunchul Rhim MD Young-sun Kim MD Byung Chul Yoo MD Seung Woon Paik MD Jae-Won Joh MD Cheol Keun Park MD | 2007 | Annals of Surgical Oncology2007，，8： | 1 |
| 8 | Optimal operation of the boil-off gas compression process using a boil-off rate model for LNG storage tank显示文摘 | SHIN Myung Wook SHIN Dongil CHOI Soo Hyoung | 2008 | Korean Journal of Chemical Engineering2008，25，1： | 1 |
| 9 | Gastric Mucosa-Assiciated Lymphoid Tissue Lymphoma显示文摘 | Hyo K Lim Soon Jin Lee | 2002 | AJR2002，178，5： | 1 |
| 10 | Percutaneous Radiofrequency Ablation for Recurrent Hepatocellular Carcinoma After Hepatectomy: Long-term Results and Prognostic Factors显示文摘 | Dongil Choi MD Hyo K. Lim MD Hyunchul Rhim MD Young-sun Kim MD Byung Chul Yoo MD Seung Woon Paik MD Jae-Won Joh MD Cheol Keun Park MD | 2007 | Annals of Surgical Oncology2007，，8： | 1 |
| 11 | Clinical Outcomes of Hepatic Resection and Radiofrequency Ablation in Patients With Solitary Colorectal Liver Metastasis显示文摘 | Won-Suk Lee Seong Hyeon Yun Ho-Kyung Chun Woo Yong Lee Sung-Joo Kim Seong-Ho Choi Jin-Seok Heo Jae Won Joh Dongil Choi Seung-Hoon Kim Hyunchul Rhim Hyo-Keun Lim | 2008 | Journal of Clinical Gastroenterology2008，，8： | 1 |
| 12 | Percutaneous radiofrequency ablation of hepatocellular carcinoma abutting the diaphragm and gastrointestinal tracts with the use of artificial ascites: safety and technical efficacy in 143 patients显示文摘 | Inyoung Song Hyunchul Rhim Hyo K. Lim Young-sun Kim Dongil Choi | 2009 | European Radiology2009，，11： | 1 |
| 13 | High-Risk Esophageal Varices in Patients Treated with Locoregional Therapies for Hepatocellular Carcinoma: Evaluation with Regular Follow-Up Liver CT显示文摘 | Hyojin Kim Dongil Choi Geum-Youn Gwak Joon Hyeok Lee Soon Jin Lee Seong Hyun Kim Ji Young Lee Yulri Park Ilsoo Chang Hyo K. Lim | 2009 | Digestive Diseases and Sciences2009，，10： | 1 |
| 14 | Intraoperative Radiofrequency Ablation for Hepatocellular Carcinoma: Long-Term Results in a Large Series显示文摘 | Young-sun Kim MD Hyunchul Rhim MD Hyo K. Lim MD Dongil Choi MD Won Jae Lee MD Tae Yeon Jeon MD Jae Won Joh MD Sung Joo Kim MD | 2008 | Annals of Surgical Oncology2008，，7： | 1 |
| 15 | Combined Hepatectomy and Radiofrequency Ablation for Multifocal Hepatocellular Carcinomas: Long-term Follow-up Results and Prognostic Factors显示文摘 | Dongil Choi MD Hyo K. Lim MD Jae-Won Joh MD Sung-Joo Kim MD Min Ju Kim MD Hyunchul Rhim MD Young-sun Kim MD Byung Chul Yoo MD Seung Woon Paik MD Cheol Keun Park MD | 2007 | Annals of Surgical Oncology2007，，12： | 1 |
| 16 | Early diffuse recurrence of hepatocellular carcinoma after percutaneous radiofrequency ablation: analysis of risk factors显示文摘 | Hee Young Lee Hyunchul Rhim Min Woo Lee Young-sun Kim Dongil Choi Min Jung Park Young Kon Kim Seong Hyun Kim Hyo Keun Lim | 2012 | European Radiology2012，，1： | 1 |
| 17 | Ultrasonography-guided percutaneous radiofrequency ablation of hepatocellular carcinomas: A feasibility scoring system for planning sonography显示文摘 | Hyunchul Rhim Dongil Choi Young-sun Kim Hyo K. Lim Bong-Keun Choe | 2009 | European Journal of Radiology2009，，2： | 1 |
| 18 | Pereutaneous radiofrequency ablation for early-stage hepatocellular carcinoma as a first-line treatment :long-term results and prognostic factors in a large single-institution series 显示文摘 | Dongil Choi Hyo K Lim Hyunchul Rhim | 2007 | Eure Radiol2007，17，3： | 1 |
| 19 | Percutaneous Radiofrequency Ablation for Recurrent Hepatocellular Carcinoma After Hepatectomy: Long-term Results and Prognostic Factors显示文摘 | Dongil Choi MD Hyo K. Lim MD Hyunchul Rhim MD Young-sun Kim MD Byung Chul Yoo MD Seung Woon Paik MD Jae-Won Joh MD Cheol Keun Park MD | 2007 | Annals of Surgical Oncology2007，，8： | 1 |
| 20 | Optimal operation of the boil-off gas compression process using a boil off rate model for LNG storage tanks显示文摘 | SHIN MYUNG WOKO SHIN DONGIL CHOI SOO HYOUNG | 2008 | Korean Journal of Chemical Engineering2008，25，1： | 1 |
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