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Your search keyword '"Marianne Goeger-Neff"' showing total 2 results
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2 results on '"Marianne Goeger-Neff"'

1. Susceptibility artifact correction in MR thermometry for monitoring of mild radiofrequency hyperthermia using total field inversion

Author

Christof Boehm, Marianne Goeger‐Neff, Hendrik T. Mulder, Benjamin Zilles, Lars H. Lindner, Gerard C. van Rhoon, Dimitrios C. Karampinos, Mingming Wu, and Radiotherapy

Subjects
SDG 3 - Good Health and Well-being, Phantoms, Imaging, Humans, Radiology, Nuclear Medicine and imaging, Sarcoma, Hyperthermia, Induced, Thermometry, Artifacts, Magnetic Resonance Imaging
Abstract

Purpose: MR temperature monitoring of mild radiofrequency hyperthermia (RF-HT) of cancer exploits the linear resonance frequency shift of water with temperature. Motion-induced susceptibility distribution changes cause artifacts that we correct here using the total field inversion (TFI) approach. Methods: The performance of TFI was compared to two background field removal (BFR) methods: Laplacian boundary value (LBV) and projection onto dipole fields (PDF). Data sets with spatial susceptibility change and (Formula presented.) -drift were simulated, phantom heating experiments were performed, four volunteer data sets at thermoneutral conditions as well as data from one cervical cancer, two sarcoma, and one seroma patients undergoing mild RF-HT were corrected using the proposed methods. Results: Simulations and phantom heating experiments revealed that using BFR or TFI preserves temperature-induced phase change, while removing susceptibility artifacts and (Formula presented.) -drift. TFI resulted in the least cumulative error for all four volunteers. Temperature probe information from four patient data sets were best depicted by TFI-corrected data in terms of accuracy and precision. TFI also performed best in case of the sarcoma treatment without temperature probe. Conclusion: TFI outperforms previously suggested BFR methods in terms of accuracy and robustness. While PDF consistently overestimates susceptibility contribution, and LBV removes valuable pixel information, TFI is more robust and leads to more accurate temperature estimations.

Published
2022

2. Borexino: geo-neutrino measurement at Gran Sasso, Italy

Author

Cristian Galbiati, Serguei Sukhotin, Michele Montuschi, Fausto Ortica, Ilya Drachnev, Alessandra Re, A. Caminata, G. Bellini, M. S. Meyer, Aldo Ianni, Aldo Romani, Karol Jedrzejczak, Matteo Agostini, Alexander Etenko, D. Franco, D. A. Semenov, A. Sotnikov, Lino Miramonti, Szymon Manecki, E. Hungerford, Paolo Lombardi, I. N. Machulin, N. Rossi, Z. Yokley, Marco Pallavicini, Andrey Formozov, Andrea Ianni, D. Bick, Sandra Zavatarelli, D. D'Angelo, M. D. Skorokhvatov, Michael Wurm, A. Vishneva, E. V. Unzhakov, M. Obolensky, E. Litvinovich, S. Appel, Lea Di noto, Robert Bruce Vogelaar, L. Papp, Marco Giammarchi, Lothar Oberauer, Marianne Goeger-Neff, Gioacchino Ranucci, Matthias Laubenstein, D. Bravo, Jay Burton Benziger, O. Zaimidoroga, Denis Korablev, B. Caccianiga, B. Neumair, S. Davini, G. Korga, E. Meroni, W. Maneschg, V. V. Kobychev, K. Fomenko, P. J. Mosteiro, Franz von Feilitzsch, G. Lukyanchenko, G. Zuzel, G. Bonfini, D. Kryn, A. Pocar, Frank Calaprice, K. Altenmueller, Livia Ludhova, Laura Perasso, Y. Suvorov, A. S. Chepurnov, Hardy Simgen, J. Thurn, R. Roncin, Hongwei Wang, V. N. Muratova, Marcin Wójcik, Juergen Winter, G. Testera, C. Ghiano, Caren Hagner, Roberto Tartaglia, P. Cavalcante, M. Misiaszek, M. Gromov, A. Razeto, F. Gabriele, S. Marcocci, M. Toropova, A. V. Derbin, Kai Zuber, Bjoern Lehnert, F. Lombardi, Oleg Smirnov, D. Jeschke, S. Schoenert, A. M. Goretti, S. Weinz, Agostini, Matteo, Altenmueller, Konrad, Appel, Simon, Bellini, Gianpaolo, Benziger, Jay, Bick, Daniel, Bonfini, Giuseppe, Bravo, David, Caccianiga, Barbara, Calaprice, Frank, Caminata, Alessio, Cavalcante, Paolo, Chepurnov, Alexander, D'Angelo, Davide, Davini, Stefano, Derbin, Alexander, Di Noto, Lea, Drachnev, Ilya, Etenko, Alexander, Fomenko, Kirill, Formozov, Andrey, Franco, Davide, Gabriele, Federico, Galbiati, Cristian, Ghiano, Chiara, Giammarchi, Marco, Goeger-Neff, Marianne, Goretti, Augusto, Gromov, Maxim, Hagner, Caren, Hungerford, Ed, Ianni, Aldo, Ianni, Andrea, Jedrzejczak, Karol, Jeschke, Dominik, Kobychev, Vladislav, Korablev, Deni, Korga, Gyorgy, Kryn, Didier, Laubenstein, Matthia, Lehnert, Bjoern, Litvinovich, Evgeny, Lombardi, Francesco, Lombardi, Paolo, Ludhova, Livia, Lukyanchenko, Georgy, Machulin, Igor, Manecki, Szymon, Maneschg, Werner, Marcocci, Simone, Meroni, Emanuela, Meyer, Mikko, Miramonti, Lino, Misiaszek, Marcin, Montuschi, Michele, Mosteiro, Pablo, Muratova, Valentina, Neumair, Birgit, Oberauer, Lothar, Obolensky, Michel, Ortica, Fausto, Pallavicini, Marco, Papp, Laszlo, Perasso, Laura, Pocar, Andrea, Ranucci, Gioacchino, Razeto, Alessandro, Re, Alessandra, Romani, Aldo, Roncin, Romain, Rossi, Nicola, Schoenert, Stefan, Semenov, Dmitrii, Simgen, Hardy, Skorokhvatov, Mikhail, Smirnov, Oleg, Sotnikov, Albert, Sukhotin, Serguei, Suvorov, Yury, Tartaglia, Roberto, Testera, Gemma, Thurn, Jan, Toropova, Maria, Unzhakov, Evgenii, Vishneva, Alina, Vogelaar, Robert Bruce, von Feilitzsch, Franz, Wang, Hanguo, Weinz, Stefan, Winter, Juergen, Wojcik, Marcin, Wurm, Michael, Yokley, Zachary, Zaimidoroga, Oleg, Zavatarelli, Sandra, Zuber, Kai, and Zuzel, Grzegorz

Subjects
FLUX, Particle physics, Neutrino oscillation, Physics::Instrumentation and Detectors, Solar neutrinos, liquid scintillators, Geoneutrino, earth, Solar neutrino, 01 natural sciences, Physics::Geophysics, Geoneutrinos, 0103 physical sciences, EARTH, 010306 general physics, Borexino, Low background, Physics, Liquid, neutrino oscillations, 010308 nuclear & particles physics, Neutrino oscillations, Liquid scintillators, scintillator, flux, Geophysics, solar neutrinos, low background, High Energy Physics::Experiment, Neutrino, geoneutrinos
Abstract

Geo-neutrinos, electron anti-neutrinos produced in beta-decays of naturally occurring radioactive isotopes in the Earth, are a unique direct probe of our planet's interior. After a brief introduction of the geo-neutrinos' properties and of the main aims of their study, we discuss the features of a detector which has recently provided breakthrough achievements in the field, Borexino, a massive, calorimetric liquid scintillator detector installed at the underground Gran Sasso Laboratory. With its unprecedented radiopurity levels achieved in the core of the detection medium, it is the only experiment in operation able to study in real time solar neutrino interactions in the challenging sub-MeV energy region. Its superior technical properties allowed Borexino also to provide a clean detection of terrestrial neutrinos. Therefore, the description of the characteristics of the detected geo-neutrino signal and of the corresponding geological implications are the main core of the discussion contained in this work.

Published
2017
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