Browsing by Author "Hu, Peng"

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    3D B1+corrected simultaneous myocardial T1 and T1ρ mapping with subject-specific respiratory motion correction and water-fat separation
    (2024) Qi, Haikun; Lv, Zhenfeng; Diao, Jiameng; Tao, Xiaofeng; Hu, Junpu; Xu, Jian; Botnar, Rene; Prieto, Claudia; Hu, Peng
    PurposeTo develop a 3D free-breathing cardiac multi-parametric mapping framework that is robust to confounders of respiratory motion, fat, and B1+ inhomogeneities and validate it for joint myocardial T1 and T1 rho mapping at 3T. MethodsAn electrocardiogram-triggered sequence with dual-echo Dixon readout was developed, where nine cardiac cycles were repeatedly acquired with inversion recovery and T1 rho preparation pulses for T1 and T1 rho sensitization. A subject-specific respiratory motion model relating the 1D diaphragmatic navigator to the respiration-induced 3D translational motion of the heart was constructed followed by respiratory motion binning and intra-bin 3D translational and inter-bin non-rigid motion correction. Spin history B1+ inhomogeneities were corrected with optimized dual flip angle strategy. After water-fat separation, the water images were matched to the simulated dictionary for T1 and T1 rho quantification. Phantoms and 10 heathy subjects were imaged to validate the proposed technique. ResultsThe proposed technique achieved strong correlation (T1: R-2 = 0.99; T1 rho: R-2 = 0.98) with the reference measurements in phantoms. 3D cardiac T1 and T1 rho maps with spatial resolution of 2 x 2 x 4 mm were obtained with scan time of 5.4 +/- 0.5 min, demonstrating comparable T1 (1236 +/- 59 ms) and T1 rho (50.2 +/- 2.4 ms) measurements to 2D separate breath-hold mapping techniques. The estimated B1+ maps showed spatial variations across the left ventricle with the septal and inferior regions being 10%-25% lower than the anterior and septal regions. ConclusionThe proposed technique achieved efficient 3D joint myocardial T1 and T1 rho mapping at 3T with respiratory motion correction, spin history B1+ correction and water-fat separation.
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    Accelerated 3D free-breathing high-resolution myocardial T1ρ mapping at 3 Tesla
    (2022) Qi, Haikun; Lv, Zhenfeng; Hu, Junpu; Xu, Jian; Botnar, Rene; Prieto, Claudia; Hu, Peng
    Purpose: To develop a fast free-breathing whole-heart high-resolution myocardial T-1 rho mapping technique with robust spin-lock preparation that can be performed at 3 Tesla.
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    JUNO sensitivity to invisible decay modes of neutrons
    (Springer Nature, 2025) Abusleme Hoffman, Ángel Christian; Adam, Thomas; Adamowicz, Kai; Ahmad, Shakeel; Ahmed, Rizwan; Aiello, Sebastiano; Campeny, Agustín; Jeria Pérez, Ignacio Francisco; Ochoa-Ricoux, Juan Pedro; Walker Galdames, Pablo; Antonelli, Vito; Antoshkina, Tatiana; de André, João P. A. M.; Auguste, Didier; Bai, Weidong; Balashov, Nikita; Baldini, Wander; Barresi, Andrea; Basilico, Davide; Baussan, Eric; Bellato, Marco; Beretta, Marco; Bergnoli, Antonio; Bick, Daniel; Bieger, Lukas; Biktemerova, Svetlana; Birkenfeld, Thilo; Blake, Iwan; Blyth, Simon; Bolshakova, Anastasia; Bongrand, Mathieu; Breton, Dominique; Brigatti, Augusto; Brugnera, Riccardo; Bruno, Riccardo; Budano, Antonio; Busto, Jose; Cabrera, Anatael; Caccianiga, Barbara; Cai, Hao; Cai, Xiao; Cai, Yanke; Cai, Zhiyan; Callier, Stéphane; Calvez, Steven; Cammi, Antonio; An, Fengpeng; Cao, Chuanya; Cao, Guofu; Cao, Jun; Caruso, Rossella; Cerna, Cédric; Cerrone, Vanessa; Chang, Jinfan; Chang, Yun; Chatrabhuti, Auttakit; Chen, Chao; Chen, Guoming; Chen, Pingping; Chen, Shaomin; Chen, Xin; Chen, Yiming; Chen, Yixue; Chen, Yu; Chen, Zelin; Chen, Zhangming; Chen, Zhiyuan; Chen, Zikang; Cheng, Jie; Cheng, Yaping; Cheng, Yu C.; Chepurnov, Alexander; Chetverikov, Alexey; Chiesa, Davide; Chimenti, Pietro; Chin, Yen-Ting; Chou, Po-Lin; Chu, Ziliang; Chukanov, Artem; Claverie, Gérard; Clementi, Catia; Clerbaux, Barbara; Molla, Marta C.; Lorenzo, Selma C. D.; Coppi, Alberto; Corti, Daniele; Csakli, Simon; Cui, Chenyang; Corso, Flavio D.; Dalager, Olivia; Datta, Jaydeep; De La Taille, Christophe; Deng, Zhi; Deng, Ziyan; Ding, Xiaoyu; Ding, Xuefeng; Ding, Yayun; Dirgantara, Bayu; Dittrich, Carsten; Dmitrievsky, Sergey; Dohnal, Tadeas; Dolzhikov, Dmitry; Donchenko, Georgy; Dong, Jianmeng; Doroshkevich, Evgeny; Dou, Wei; Dracos, Marcos; Druillole, Frédéric; Du, Ran; Du, Shuxian; Duan, Yujie; Dugas, Katherine; Dusini, Stefano; Duyang, Hongyue; Eck, Jessica; Enqvist, Timo; Fabbri, Andrea; Fahrendholz, Ulrike; Fan, Lei; Fang, Jian; Fang, Wenxing; Fedoseev, Dmitry; Feng, Li-Cheng; Feng, Qichun; Ferraro, Federico; Fournier, Amélie; Fritsch, Fritsch; Gan, Haonan; Gao, Feng; Gao, Feng; Garfagnini, Alberto; Gavrikov, Arsenii; Giammarchi, Marco; Giudice, Nunzio; Gonchar, Maxim; Gong, Guanghua; Gong, Hui; Gornushkin, Yuri; Grassi, Marco; Gromov, Maxim; Gromov, Vasily; Gu, Minghao; Gu, Xiaofei; Gu, Yu; Guan, Mengyun; Guan, Yuduo; Guardone, Nunzio; Guizzetti, Rosa M.; Guo, Cong; Guo, Wanlei; Hagner, Caren; Han, Hechong; Han, Ran; Han, Yang; He, Jinhong; He, Miao; He, Wei; He, Xinhai; Heinz, Tobias; Hellmuth, Patrick; Heng, Yuekun; Herrera, Rafael; Hor, YuenKeung; Hou, Shaojing; Hsiung, Yee; Hu, Bei-Zhen; Hu, Hang; Hu, Jun; Hu, Peng; Hu, Shouyang; Hu, Tao; Hu, Yuxiang; Hu, Zhuojun; Huang, Guihong; Huang, Hanxiong; Huang, Jinhao; Huang, Junting; Huang, Kaixuan; Huang, Shengheng; Huang, Wenhao; Huang, Xin; Huang, Xingtao; Huang, Yongbo; Hui, Jiaqi; Huo, Lei; Huo, Wenju; Huss, Cédric; Hussain, Safeer; Imbert, Leonard; Ioannisian, Ara; Isocrate, Roberto; Jafar, Arshak; Jelmini, Beatrice; An, Qi; Ji, Xiaolu; Jia, Huihui; Jia, Junji; Jian, Siyu; Jiang, Cailian; Jiang, Di; Jiang, Guangzheng; Jiang, Wei; Jiang, Xiaoshan; Jiang, Xiaozhao; Jiang, Yixuan; Jing, Xiaoping; Jollet, Cécile; Kang, Li; Karaparabil, Rebin; Kazarian, Narine; Khan, Ali; Khatun, Amina; Khosonthongkee, Khanchai; Korablev, Denis; Kouzakov, Konstantin; Krasnoperov, Alexey; Kuleshov, Sergey; Kumaran, Sindhujha; Kutovskiy, Nikolay; Labit, Loïc; Lachenmaier, Tobias; Lai, Haojing; Landini, Cecilia; Leblanc, Sébastien; Lefevre, Frederic; Lei, Ruiting; Leitner, Rupert; Leung, Jason; Li, Demin; Li, Fei; Li, Fule; Li, Gaosong; Li, Hongjian; Li, Huang; Li, Jiajun; Li, Min; Li, Nan; Li, Qingjiang; Li, Ruhui; Li, Rui; Li, Shanfeng; Li, Shuo; Li, Tao; Li, Teng; Li, Weidong; Li, Weiguo; Li, Xiaomei; Li, Xiaonan; Li, Xinglong; Li, Yi; Li, Yichen; Li, Yufeng; Li, Zhaohan; Li, Zhibing; Li, Ziyuan; Li, Zonghai; Liang, An-An; Liang, Hao; Liang, Hao; Liao, Jiajun; Liao, Yilin; Liao, Yuzhong; Limphirat, Ayut; Lin, Guey-Lin; Lin, Shengxin; Lin, Tao; Ling, Jiajie; Ling, Xin; Lippi, Ivano; Liu, Caimei; Liu, Fang; Liu, Fengcheng; Liu, Haidong; Liu, Haotian; Liu, Hongbang; Liu, Hongjuan; Liu, Hongtao; Liu, Hongyang; Liu, Jianglai; Liu, Jiaxi; Liu, Jinchang; Liu, Min; Liu, Qian; Liu, Qin; Liu, Runxuan; Liu, Shenghui; Liu, Shubin; Liu, Shulin; Liu, Xiaowei; Liu, Xiwen; Liu, Xuewei; Liu, Yankai; Liu, Zhen; Loi, Lorenzo; Lokhov, Alexey; Lombardi, Paolo; Lombardo, Claudio; Loo, Kai; Lu, Chuan; Lu, Haoqi; Lu, Jingbin; Lu, Junguang; Lu, Meishu; Lu, Peizhi; Lu, Shuxiang; Lu, Xianguo; Lubsandorzhiev, Bayarto; Lubsandorzhiev, Sultim; Ludhova, Livia; Lukanov, Arslan; Luo, Fengjiao; Luo, Guang; Luo, Jianyi; Luo, Shu; Luo, Wuming; Luo, Xiaojie; Lyashuk, Vladimir; Ma, Bangzheng; Ma, Bing; Ma, Qiumei; Ma, Si; Ma, Xiaoyan; Ma, Xubo; Maalmi, Jihane; Mai, Jingyu; Malabarba, Marco; Malyshkin, Yury; Mandujano, Roberto C.; Mantovani, Fabio; Mao, Xin; Mao, Yajun; Mari, Stefano M.; Marini, Filippo; Martini, Agnese; Mayer, Matthias; Mayilyan, Davit; Mednieks, Ints; Meng, Yue; Meraviglia, Anita; Meregaglia, Anselmo; Meroni, Emanuela; Miramonti, Lino; Mohan, Nikhil; Montuschi, Michele; Reveco, Cristobal M.; Nastasi, Massimiliano; Naumov, Dmitry V.; Naumova, Elena; Navas-Nicolas, Diana; Nemchenok, Igor; Thi, Minh T. N.; Nikolaev, Alexey; Ning, Feipeng; Ning, Zhe; Nunokawa, Hiroshi; Oberauer, Lothar; Andronico, Giuseppe; Olshevskiy, Alexander; Orestano, Domizia; Ortica, Fausto; Othegraven, Rainer; Paoloni, Alessandro; Parker, George; Parmeggiano, Sergio; Patsias, Achilleas; Pei, Yatian; Pelicci, Luca; Peng, Anguo; Peng, Haiping; Peng, Yu; Peng, Zhaoyuan; Percalli, Elisa; Perrin, Willy; Perrot, Frédéric; Petitjean, Pierre-Alexandre; Petrucci, Fabrizio; Pilarczyk, Oliver; Rico, Luis F. P.; Popov, Artyom; Poussot, Pascal; Previtali, Ezio; Qi, Fazhi; Qi, Ming; Qi, Xiaohui; Qian, Sen; Qian, Xiaohui; Qian, Zhen; Qiao, Hao; Qin, Zhonghua; Qiu, Shoukang; Qu, Manhao; Qu, Zhenning; Ranucci, Gioacchino; Re, Alessandra; Rebii, Abdel; Redchuk, Mariia; Reina, Gioele; Ren, Bin; Ren, Jie; Ren, Yuhan; Ricci, Barbara; Rientong, Komkrit; Rifai, Mariam; Roche, Mathieu; Rodphai, Narongkiat; Romani, Aldo; Roskovec, Bedřich; Ruan, Xichao; Rybnikov, Arseniy; Sadovsky, Andrey; Saggese, Paolo; Sandanayake, Deshan; Sangka, Anut; Sava, Giuseppe; Sawangwit, Utane; Schever, Michaela; Schwab, Cédric; Schweizer, Konstantin; Selyunin, Alexandr; Serafini, Andrea; Settimo, Mariangela; Shao, Junyu; Sharov, Vladislav; Shi, Hexi; Shi, Jingyan; Shi, Yanan; Shutov, Vitaly; Sidorenkov, Andrey; Šimkovic, Fedor; Singhal, Apeksha; Sirignano, Chiara; Siripak, Jaruchit; Sisti, Monica; Smirnov, Mikhail; Smirnov, Oleg; Sokolov, Sergey; Songwadhana, Julanan; Soonthornthum, Boonrucksar; Sotnikov, Albert; Sreethawong, Warintorn; Stahl, Achim; Stanco, Luca; Stankevich, Konstantin; Steiger, Hans; Steinmann, Jochen; Sterr, Tobias; Stock, Matthias R.; Strati, Virginia; Strizh, Michail; Studenikin, Alexander; Su, Aoqi; Su, Jun; Su, Jun; Sun, Guangbao; Sun, Shifeng; Sun, Xilei; Sun, Yongjie; Sun, Yongzhao; Sun, Zhengyang; Suwonjandee, Narumon; Takenaka, Akira; Tan, Xiaohan; Tang, Jian; Tang, Jingzhe; Tang, Qiang; Tang, Quan; Tang, Xiao; Hariharan, Vidhya T.; Tkachev, Igor; Tmej, Tomas; Torri, Marco D. C.; Triossi, Andrea; Trzaska, Wladyslaw; Tung, Yu-Chen; Tuve, Cristina; Ushakov, Nikita; Vedin, Vadim; Venettacci, Carlo; Verde, Giuseppe; Vialkov, Maxim; Viaud, Benoit; Vollbrecht, Cornelius M.; Sturm, Katharina v.; Vorobel, Vit; Voronin, Dmitriy; Votano, Lucia; Anfimov, Nikolay; Wang, Caishen; Wang, Chung-Hsiang; Wang, En; Wang, Guoli; Wang, Hanwen; Wang, Jian; Wang, Jun; Wang, Li; Wang, Lu; Wang, Meng; Wang, Meng; Wang, Mingyuan; Wang, Qianchuan; Wang, Ruiguang; Wang, Sibo; Wang, Siguang; Wang, Wei; Wang, Wenshuai; Wang, Xi; Wang, Xiangyue; Wang, Yangfu; Wang, Yaoguang; Wang, Yi; Wang, Yi; Wang, Yifang; Wang, Yuanqing; Wang, Yuyi; Wang, Zhe; Wang, Zheng; Wang, Zhimin; Watcharangkool, Apimook; Wei, Wei; Wei, Wei; Wei, Wenlu; Wei, Yadong; Wei, Yuehuan; Wen, Liangjian; Weng, Jun; Wiebusch, Christopher; Wirth, Rosmarie; Wu, Chengxin; Wu, Diru; Wu, Qun; Wu, Yinhui; Wu, Yiyang; Wu, Zhi; Wurm, Michael; Wurtz, Jacques; Wysotzki, Christian; Xi, Yufei; Xia, Dongmei; Xian, Shishen; Xiang, Ziqian; Xiao, Fei; Xiao, Xiang; Xie, Xiaochuan; Xie, Yijun; Xie, Yuguang; Xin, Zhao; Xing, Zhizhong; Xu, Benda; Xu, Cheng; Xu, Donglian; Xu, Fanrong; Xu, Hangkun; Xu, Jiayang; Xu, Jilei; Xu, Jing; Xu, Jinghuan; Xu, Meihang; Xu, Xunjie; Xu, Yin; Xu, Yu; Yan, Baojun; Yan, Qiyu; Yan, Taylor; Yan, Xiongbo; Yan, Yupeng; Yang, Changgen; Yang, Chengfeng; Yang, Fengfan; Yang, Jie; Yang, Lei; Yang, Pengfei; Yang, Xiaoyu; Yang, Yifan; Yang, Yixiang; Yang, Zekun; Yao, Haifeng; Ye, Jiaxuan; Ye, Mei; Ye, Ziping; Yermia, Frédéric; You, Zhengyun; Yu, Boxiang; Yu, Chiye; Yu, Chunxu; Yu, Guojun; Yu, Hongzhao; Yu, Miao; Yu, Xianghui; Yu, Zeyuan; Yu, Zezhong; Yuan, Cenxi; Yuan, Chengzhuo; Yuan, Ying; Yuan, Zhenxiong; Yue, Baobiao; Zafar, Noman; Zamogilnyi, Kirill; Zavadskyi, Vitalii; Zeng, Fanrui; Zeng, Shan; Zeng, Tingxuan; Zeng, Yuda; Zhan, Liang; Zhang, Aiqiang; Zhang, Bin; Zhang, Binting; Zhang, Feiyang; Zhang, Hangchang; Zhang, Haosen; Zhang, Honghao; Zhang, Jialiang; Zhang, Jiawen; Zhang, Jie; Zhang, Jingbo; Zhang, Jinnan; Zhang, Junwei; Zhang, Lei; Zhang, Peng; Zhang, Ping; Zhang, Qingmin; Zhang, Shiqi; Zhang, Shu; Zhang, Shuihan; Zhang, Siyuan; Zhang, Tao; Zhang, Xiaomei; Zhang, Xin; Zhang, Xuantong; Zhang, Yibing; Zhang, Yinhong; Zhang, Yiyu; Zhang, Yongpeng; Zhang, Yu; Zhang, Yuanyuan; Zhang, Yumei; Zhang, Zhenyu; Zhang, Zhijian; Zhao, Jie; Zhao, Rong; Zhao, Runze; Zhao, Shujun; Zhao, Tianhao; Zheng, Hua; Zheng, Yangheng; Zhou, Jing; Zhou, Li; Zhou, Nan; Zhou, Shun; Zhou, Tong; Zhou, Xiang; Zhou, Xing; Zhu, Jingsen; Zhu, Kangfu; Zhu, Kejun; Zhu, Zhihang; Zhuang, Bo; Zhuang, Honglin; Zong, Liang; Zou, Jiaheng; JUNO Collaboration
    We explore the decay of bound neutrons in the JUNO liquid scintillator detector into invisible particles (e.g., n → 3 ν or n n → 2 ν ), which do not produce an observable signal. The invisible decay includes two decay modes: n → inv and n n → inv . The invisible decays of s-shell neutrons in 12 C will leave a highly excited residual nucleus. Subsequently, some de-excitation modes of the excited residual nuclei can produce a time- and space-correlated triple coincidence signal in the JUNO detector. Based on a full Monte Carlo simulation informed with the latest available data, we estimate all backgrounds, including inverse beta decay events of the reactor antineutrino ν ¯ e , natural radioactivity, cosmogenic isotopes and neutral current interactions of atmospheric neutrinos. Pulse shape discrimination and multivariate analysis techniques are employed to further suppress backgrounds. With two years of exposure, JUNO is expected to give an order of magnitude improvement compared to the current best limits. After 10 years of data taking, the JUNO expected sensitivities at a 90% confidence level are τ / B ( n → inv ) > 5.0 × 10 31 years and τ / B ( n n → inv ) > 1.4 × 10 32 years .