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Jwa, Eunjin,Lee, Sang-Wook,Kim, Jae-Seung,Park, Jin Hong,Kim, Su Ssan,Kim, Young Seok,Yoon, Sang Min,Song, Si Yeol,Kim, Jong Hoon,Choi, Eun Kyung,Ahn, Seung Do The Korean Society for Radiation Oncology 2012 Radiation Oncology Journal Vol.30 No.4
Purpose: To evaluate the prognostic value of preoperative neck lymph node (LN) assessment with $^{18}F$-fluorodeoxyglucose positron emission tomography ($^{18}F$-FDG PET), computed tomography (CT), and magnetic resonance imaging (MRI) in oral cavity squamous cell carcinoma (OSCC) patients with pathologically positive LN. Materials and Methods: In total, 47 OSCC patients with pathologically positive LN were retrospectively reviewed with preoperative $^{18}F$-FDG PET and CT/MRI. All patients underwent surgical resection, neck dissection and postoperative adjuvant radiotherapy and/or chemotherapy between March 2002 and October 2010. Histologic correlation was performed for findings of $^{18}F$-FDG PET and CT/MRI. Results: Thirty-six (76.6%) of 47 cases were correctly diagnosed with neck LN metastasis by $^{18}F$-FDG PET and 32 (68.1%) of 47 cases were correctly diagnosed by CT/MRI. Follow-up ranged from 20 to 114 months (median, 56 months). Clinically negative nodal status evaluated by $^{18}F$-FDG PET or CT/MRI revealed a trend toward better clinical outcomes in terms of overall survival, disease-free survival, local recurrence-free survival, regional nodal recurrence-free survival, and distant metastasis-free survival rates even though the trends were not statistically significant. However, there was no impact of neck node standardized uptake value ($SUV_{max}$) on clinical outcomes. Notably, $SUV_{max}$ showed significant correlation with tumor size in LN (p < 0.01, $R^2$ = 0.62). PET and CT/MRI status of LN also had significant correlation with the size of intranodal tumor deposit (p < 0.05, $R^2$ = 0.37 and p < 0.01, $R^2$ = 0.48, respectively). Conclusion: $^{18}F$-FDG PET and CT/MRI at the neck LNs might improve risk stratification in OSCC patients with pathologically positive neck LN in this study, even without significant prognostic value of $SUV_{max}$.
Jwa, Eunjin,Yun, Yeo-Myeong,Kim, Hanki,Jeong, Namjo,Park, Soon-Chul,Nam, Joo-Youn Elsevier 2019 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Vol.44 No.2
<P><B>Abstract</B></P> <P>High hydrogen production rate and energy recovery were accomplished in a tubular microbial electrolysis cell (MEC) equipped with a robust membrane electrode assembly (MEA). The current and the hydrogen production of non-flexible MEAs, simply fabricated by directly brushing a catalyst on a self-supporting tubular membrane, were compared with those of a typical MEA, where a cathode is physically combined with a membrane. Current of 34 ± 2 mA (1.79 ± 0.05 A/m<SUP>2</SUP>) and coulombic efficiency of 98.5 ± 1.0% were achieved in non-flexible MEAs, outperforming the typical MEA under fed-batch mode. The MEA, having a durable coating layer, also showed an enhanced hydrogen production rate and electric energy recovery with values of 0.18 ± 0.03 m<SUP>3</SUP>/m<SUP>3</SUP>-d and 151.9 ± 1.0%, respectively, even for low strength domestic wastewater (dWW) treatment in the continuous-flow mode. These outcomes were similarly maintained in the case of using seawater, which is a good candidate for an economical and environmentally suitable catholyte.</P> <P><B>Highlights</B></P> <P> <UL> <LI> An MEC equipped with a robust MEA was used for domestic wastewater treatment. </LI> <LI> Current of 34 mA and coulombic efficiency of 98.5% were achieved in a robust MEA. </LI> <LI> The system showed a high hydrogen production rate (0.18 m<SUP>3</SUP>/m<SUP>3</SUP>-d) and an electric energy recovery (151.9%). </LI> <LI> When seawater was supplied as the catholyte, the current and hydrogen production of MEC were maintained. </LI> </UL> </P>
Eunjin Jwa,Sang-Wook Lee,Jae-Seung Kim,Jin Hong Park,Su Ssan Kim,Young Seok Kim,Sang Min Yoon,Si Yeol Song,Jong Hoon Kim,Eun Kyung Choi,Seung Do Ahn 대한방사선종양학회 2012 Radiation Oncology Journal Vol.30 No.3
Purpose: To evaluate the prognostic value of preoperative neck lymph node (LN) assessment with 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET), computed tomography (CT), and magnetic resonance imaging (MRI) in oral cavity squamous cell carcinoma (OSCC) patients with pathologically positive LN. Materials and Methods: In total, 47 OSCC patients with pathologically positive LN were retrospectively reviewed with preoperative 18F-FDG PET and CT/MRI. All patients underwent surgical resection, neck dissection and postoperative adjuvant radiotherapy and/or chemotherapy between March 2002 and October 2010. Histologic correlation was performed for findings of 18F-FDG PET and CT/MRI. Results: Thirty-six (76.6%) of 47 cases were correctly diagnosed with neck LN metastasis by 18F-FDG PET and 32 (68.1%) of 47 cases were correctly diagnosed by CT/MRI. Follow-up ranged from 20 to 114 months (median, 56 months). Clinically negative nodal status evaluated by 18F-FDG PET or CT/MRI revealed a trend toward better clinical outcomes in terms of overall survival, disease-free survival, local recurrence-free survival, regional nodal recurrence-free survival, and distant metastasis-free survival rates even though the trends were not statistically significant. However, there was no impact of neck node standardized uptake value (SUVmax) on clinical outcomes. Notably, SUVmax showed significant correlation with tumor size in LN (p < 0.01, R2 = 0.62). PET and CT/MRI status of LN also had significant correlation with the size of intranodal tumor deposit (p < 0.05, R2 = 0.37 and p < 0.01, R2 = 0.48, respectively). Conclusion: 18F-FDG PET and CT/MRI at the neck LNs might improve risk stratification in OSCC patients with pathologically positive neck LN in this study, even without significant prognostic value of SUVmax.
Eunjin Jwa,이상욱,김재승,박진홍,김수산,김영석,윤상민,송시열,김종훈,최은경,안승도 대한방사선종양학회 2012 Radiation Oncology Journal Vol.30 No.4
Purpose: To evaluate the prognostic value of preoperative neck lymph node (LN) assessment with 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET), computed tomography (CT), and magnetic resonance imaging (MRI) in oral cavity squamous cell carcinoma (OSCC) patients with pathologically positive LN. Materials and Methods: In total, 47 OSCC patients with pathologically positive LN were retrospectively reviewed with preoperative 18F-FDG PET and CT/MRI. All patients underwent surgical resection, neck dissection and postoperative adjuvant radiotherapy and/or chemotherapy between March 2002 and October 2010. Histologic correlation was performed for findings of 18F-FDG PET and CT/MRI. Results: Thirty-six (76.6%) of 47 cases were correctly diagnosed with neck LN metastasis by 18F-FDG PET and 32 (68.1%) of 47 cases were correctly diagnosed by CT/MRI. Follow-up ranged from 20 to 114 months (median, 56 months). Clinically negative nodal status evaluated by 18F-FDG PET or CT/MRI revealed a trend toward better clinical outcomes in terms of overall survival, disease-free survival, local recurrence-free survival, regional nodal recurrence-free survival, and distant metastasis-free survival rates even though the trends were not statistically significant. However, there was no impact of neck node standardized uptake value (SUVmax) on clinical outcomes. Notably, SUVmax showed significant correlation with tumor size in LN (p < 0.01, R2 = 0.62). PET and CT/MRI status of LN also had significant correlation with the size of intranodal tumor deposit (p < 0.05, R2 = 0.37 and p < 0.01, R2 = 0.48, respectively). Conclusion: 18F-FDG PET and CT/MRI at the neck LNs might improve risk stratification in OSCC patients with pathologically positive neck LN in this study, even without significant prognostic value of SUVmax.