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249 results on '"Han, Chunhui"'

2. Technical recommendations for implementation of Volumetric Modulated Arc Therapy and Helical Tomotherapy Total Body Irradiation

Author

Seravalli, Enrica, Bosman, Mirjam E., Han, Chunhui, Losert, Christoph, Pazos, Montserrat, Engström, Per E, Engellau, Jacob, Fulcheri, Christian P.L., Zucchetti, Claudio, Saldi, Simonetta, Ferrer, Carlos, Ocanto, Abrahams, Hiniker, Susan M., Clark, Catharine H., Hussein, Mohammad, Misson-Yates, Sarah, Kobyzeva, Daria A., Loginova, Anna A., and Hoeben, Bianca A.W.

Published
2024
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4. Setup Accuracy in Craniospinal Irradiation: Implications for Planning Treatment Volume Margins

Author

Novak, Jennifer, Du, Dongsu, Shinde, Ashwin, Li, Richard, Amini, Arya, Chen, Yi-Jen, Wong, Jeffrey, Han, Chunhui, Neylon, John, Liu, An, and Glaser, Scott

Subjects
Cancer
Abstract

PurposeCraniospinal irradiation (CSI) using tomotherapy has advantages over standard 3-dimensional techniques. However, there is a paucity of published data on craniospinal setup reproducibility to guide appropriate planning treatment volume (PTV) margins. We sought to evaluate the setup accuracy of patients undergoing CSI to optimize PTV margins.Methods and materialsWe measured residual setup deviation between simulation computed tomography (CT) and daily megavoltage CT after couch shifts made by therapists after megavoltage CT-based image registration for 10 patients who completed CSI at our institution. Translational displacement values were recorded at the sella, top of T1, and top of L5 in the anteroposterior (AP) and lateral planes. Systematic and random error were calculated from displacement values. Using z score analysis, we calculated minimal PTV margins to encompass 90% of recorded fractions at each level. We evaluated whether patient characteristics predict for increased setup error using standard statistical techniques.ResultsThe mean setup deviation in the AP plane across all treatments was 2.49, 3.40, and 3.83 mm at the sella, T1, and L5, respectively. Mean lateral setup error was 2.86, 4.02, and 5.46 mm at the sella, T1, and L5, respectively. Systematic error ranged from 0.75 to 1.01 mm at the sella, 1.09 to 1.37 mm at T1, and 1.30 to 1.50 mm at L5. Random error ranged from 1.35 to 1.41 mm at the sella, 1.48 to 1.73 mm at T1, and 2.26 to 2.37 mm at L5. The minimum margin to cover 90% of the treatments was 6.4, 8.2, and 10.5 mm at the sella, T1, and L5, respectively. There appeared to be a correlation between older age and lateral setup error in the L spine approaching statistical significance (R, 0.629; P = .052).ConclusionsSetup error increases in the caudal direction of the spine and is greater in the lateral plane compared with the AP plane. We recommend a PTV margin of 5 to 7 mm in the brain and 10 mm in the spine.

Published
2021

21. Multi-institutional evaluation of MVCT guided patient registration and dosimetric precision in total marrow irradiation: A global health initiative by the international consortium of total marrow irradiation

Author

Zuro, Darren, Vagge, Stefano, Broggi, Sara, Agostinelli, Stefano, Takahashi, Yutaka, Brooks, Jamison, Leszcynska, Paulina, Liu, An, Zucchetti, Claudio, Saldi, Simonetta, Han, Chunhui, Cattaneo, Mauro, Giebel, Sebastian, Mahe, Marc Andre, Sanchez, James F., Alaei, Parham, Anna, Chiara, Dusenbery, Kathryn, Pierini, Antonio, Storme, Guy, Aristei, Cynthia, Wong, Jeffrey Y.C., and Hui, Susanta

Published
2019
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26. Evaluation of repeatability and reproducibility of radiomic features produced by the fan‐beam KV‐CT on a novel ring gantry‐based PET/CT linear accelerator

Author

Ketcherside, Trevor, primary, Shi, Chengyu, additional, Chen, Quan, additional, Leung, David, additional, Sundquist, Andrew, additional, Huntzinger, Calvin, additional, Court, Laurence E., additional, Han, Chunhui, additional, Watkins, Tyler, additional, Ladbury, Colton, additional, Williams, Terence M., additional, and Liu, An, additional

Published
2023
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34. Long-term follow up of patients with hematological malignancies treated with total body irradiation using intensity modulated radiation therapy

Author

Ladbury, Colton, primary, Hao, Claire, additional, Yang, Dongyun, additional, Hui, Susanta, additional, Han, Chunhui, additional, Liu, An, additional, Salhotra, Amandeep, additional, Nakamura, Ryotaro, additional, Rosenthal, Joseph, additional, Stein, Anthony, additional, Wong, Jeffrey, additional, and Dandapani, Savita, additional

Published
2022
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35. Risk of Subsequent Malignant Neoplasms Following Hematopoietic Stem Cell Transplantation with Total Body Irradiation or Total Marrow Irradiation: Insights from Early Follow-Up

Author

Ladbury, Colton, primary, Armenian, Saro, additional, Bosworth, Alysia, additional, He, Tianhui, additional, Wong, F. Lennie, additional, Dandapani, Savita, additional, Han, Chunhui, additional, Liu, An, additional, Al Malki, Monzr, additional, Rosenthal, Joseph, additional, Stein, Anthony, additional, and Wong, Jeffrey, additional

Published
2022
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37. Role of radiotherapy in treatment of extramedullary relapse following total marrow and lymphoid irradiation in high-risk and/or relapsed/refractory acute leukemia

Author

Ladbury, Colton, primary, Semwal, Hemal, additional, Hong, Daniel, additional, Yang, Dongyun, additional, Hao, Claire, additional, Han, Chunhui, additional, Liu, An, additional, Marcucci, Guido, additional, Rosenthal, Joseph, additional, Hui, Susanta, additional, Salhotra, Amandeep, additional, Ali, Haris, additional, Nakamura, Ryotaro, additional, Stein, Anthony, additional, Al Malki, Monzr, additional, Wong, Jeffrey Y. C., additional, and Dandapani, Savita, additional

Published
2022
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39. Total marrow irradiation (TMI): Addressing an unmet need in hematopoietic cell transplantation - a single institution experience review

Author

Wong, Jeffrey Y.C., primary, Liu, An, additional, Han, Chunhui, additional, Dandapani, Savita, additional, Schultheiss, Timothy, additional, Palmer, Joycelynne, additional, Yang, Dongyun, additional, Somlo, George, additional, Salhotra, Amandeep, additional, Hui, Susanta, additional, Al Malki, Monzr M., additional, Rosenthal, Joseph, additional, and Stein, Anthony, additional

Published
2022
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46. Comprehensive Evaluation of the Human-Water Harmony Relationship in Countries Along the 'Belt and Road'

Author

Hao Lingang, Han Chunhui, Yixuan Diao, and Zuo Qiting

Subjects
Harmony (color), 010504 meteorology & atmospheric sciences, 0208 environmental biotechnology, Developing country, 02 engineering and technology, Environmental economics, 01 natural sciences, 020801 environmental engineering, Water resources, Geography, Relationship problems, 0105 earth and related environmental sciences, Water Science and Technology, Civil and Structural Engineering
Abstract

An accurate assessment of the harmonious relationship between human beings and water resources is central to conducting the comprehensive management of water resources. The human-water relationship in the “Belt and Road” region is complex, but there is a lack of systematic quantitative research. An inadequate understanding of the human-water relationship hinders decision-makers in recognizing water management priorities. To fill this gap, this paper first selects six criteria for human-water harmony from the perspectives of a humanistic system and a water system. Based on these criteria, representative indexes were selected, and the harmony degree equation was used to calculate the degree of human-water harmony in 43 countries along the “Belt and Road” in 2002, 2007, 2012 and 2017. The results revealed that human-water harmony mainly exhibited a high rate of change in developing countries, while harmony was relatively stable in developed countries and generally higher than that in developing countries. At the same time, countries in the “Belt and Road” region had different human-water relationship problems, and it was necessary to solve these problems according to their national conditions. This study can be used by countries to propel themselves out of their unique situation and understand the human-water relationship from an overall perspective by conducting a comparative analysis of different countries at the national scale. These results can provide a reference for solving the harmonious development problem of the human-water relationship in countries along the “Belt and Road”.

Published
2020

50. Lignans from Bupleurum marginatum and their antioxidant activity.

Author

Zhou, Jian, He, Xin, Sun, Rongjin, Yu, Zhenlong, Wang, Chao, Deng, Sa, Zhang, Baojing, Huang, Shanshan, Han, Chunhui, and Li, Dawei

Subjects
BUPLEURUM, LIGNANS, ANTIOXIDANTS, DATA analysis
Abstract

A new aryltetralin lignan, bupleroid A (1), along with ten known analogues (2–11) were isolated from Bupleurum marginatum. The structures of these isolates were determined by 1D and 2D NMR, HRESIMS, and ECD data analysis. In addition, the DPPH radical scavenging capacities of all compounds were evaluated. Compound 6 exhibited good DPPH radical scavenging activity at a concentration of 50 μM. [ABSTRACT FROM AUTHOR]

Published
2022
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