TY  - JOUR
A1  - Scholl, Ingrid
A1  - Palm, Christoph
A1  - Lehmann, Thomas Martin
A1  - Spitzer, Klaus
T1  - Quantitative Farbmessung in laryngoskopischen Bildern. Palm, C; Scholl, I; Lehmann, TM; Spitzer, K.
JF  - Bildverarbeitung für die Medizin 1998. Hrsg.: Thomas Lehmann ...
Y1  - 1998
SN  - 3-540-63885-7
SP  - 412
EP  - 416
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus temperature limits
JF  - Medical Physics
Y1  - 2017
U6  - https://doi.org/10.1002/mp.12034
N1  - This article is corrected by:
Errata: Erratum: “RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus tissue temperature limits” [Med. Phys. 44(1), 143–157 (2017)] Volume 44, Issue 2, 772
VL  - 44
IS  - 1
SP  - 143
EP  - 157
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Clemens, Markus
A1  - Bitz, Andreas
T1  - Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging
JF  - IEEE Letters on Electromagnetic Compatibility Practice and Applications
N2  - Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.
Y1  - 2020
SN  - 2637-6423
U6  - https://doi.org/10.1109/LEMCPA.2020.3029747
VL  - 2
IS  - 3
SP  - 1
EP  - 8
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Schlamann, M.
A1  - Yoon, M.-S.
A1  - Maderwald, S.
A1  - Pietrzyk, Thomas
A1  - Bitz, Andreas
A1  - Gerwig, M.
A1  - Forsting, M.
A1  - Ladd, S. C.
A1  - Ladd, M. E.
A1  - Kastrup, O.
T1  - Auswirkungen der Magnetresonanztomografie auf die Elektrophysiologie des motorischen Kortex: eine Studie mit transkranieller Magnetstimulation
T1  - Effects of MRI on the electrophysiology of the motor cortex: a TMS study
JF  - RöFo - Fortschritte auf dem Giebiet der Röntgenstrahlen und der bildgebenden Verfahren
Y1  - 2009
U6  - https://doi.org/10.1055/s-0028-1109038
SN  - 1438-9029
VL  - 181
IS  - 3
SP  - 215
EP  - 219
PB  - Thieme
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Schmidt, Katharina
A1  - Forkmann, Katarina
A1  - Schultz, Heidrun
A1  - Gratz, Marcel
A1  - Bitz, Andreas
A1  - Wiech, Katja
A1  - Bingel, Ulrike
T1  - Enhanced Neural Reinstatement for Evoked Facial Pain Compared With Evoked Hand Pain
JF  - The  Journal of Pain
Y1  - 2019
U6  - https://doi.org/10.1016/j.jpain.2019.03.003
SN  - 1526-5900
IS  - In Press, Corrected Proof
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schmidt, Katharina
A1  - Forkmann, Katarina
A1  - Sinke, C.
A1  - Gratz, Marcel
A1  - Bitz, Andreas
A1  - Bingel, Ulrike
T1  - The differential effect of trigeminal vs. peripheral pain stimulation on visual processing and memory encoding is influenced by pain-related fear
JF  - NeuroImage
N2  - Compared to peripheral pain, trigeminal pain elicits higher levels of fear, which is assumed to enhance the interruptive effects of pain on concomitant cognitive processes. In this fMRI study we examined the behavioral and neural effects of trigeminal (forehead) and peripheral (hand) pain on visual processing and memory encoding. Cerebral activity was measured in 23 healthy subjects performing a visual categorization task that was immediately followed by a surprise recognition task. During the categorization task subjects received concomitant noxious electrical stimulation on the forehead or hand. Our data show that fear ratings were significantly higher for trigeminal pain. Categorization and recognition performance did not differ between pictures that were presented with trigeminal and peripheral pain. However, object categorization in the presence of trigeminal pain was associated with stronger activity in task-relevant visual areas (lateral occipital complex, LOC), memory encoding areas (hippocampus and parahippocampus) and areas implicated in emotional processing (amygdala) compared to peripheral pain. Further, individual differences in neural activation between the trigeminal and the peripheral condition were positively related to differences in fear ratings between both conditions. Functional connectivity between amygdala and LOC was increased during trigeminal compared to peripheral painful stimulation. Fear-driven compensatory resource activation seems to be enhanced for trigeminal stimuli, presumably due to their exceptional biological relevance.
Y1  - 2016
U6  - https://doi.org/10.1016/j.neuroimage.2016.03.026
SN  - 1053-8119
VL  - 134
SP  - 386
EP  - 395
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Orzada, Stephan
A1  - Solbach, Klaus
A1  - Gratz, Marcel
A1  - Brunheim, Sascha
A1  - Fiedler, Thomas M.
A1  - Johst, Sören
A1  - Bitz, Andreas
A1  - Shooshtary, Samaneh
A1  - Abuelhaija, Ashraf
A1  - Voelker, Maximilian N.
A1  - Rietsch, Stefan H. G.
A1  - Kraff, Oliver
A1  - Maderwald, Stefan
A1  - Flöser, Martina
A1  - Oehmingen, Mark
A1  - Quick, Harald H.
A1  - Ladd, Mark E.
T1  - A 32-channel parallel transmit system add-on for 7T MRI
JF  - Plos one
Y1  - 2019
U6  - https://doi.org/10.1371/journal.pone.0222452
ER  - 
TY  - JOUR
A1  - Rietsch, Stefan H. G.
A1  - Brunheim, Sascha
A1  - Orzada, Stephan
A1  - Voelker, Maximilian N.
A1  - Maderwald, Stefan
A1  - Bitz, Andreas
A1  - Gratz, Marcel
A1  - Ladd, Mark E.
A1  - Quick, Harald H.
T1  - Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine
JF  - Magnetic Resonance in Medicine
Y1  - 2019
U6  - https://doi.org/10.1002/mrm.27731
SN  - 1522-2594
IS  - Early view
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Orzada, Stephan
A1  - Bitz, Andreas
A1  - Johst, Sören
A1  - Gratz, Marcel
A1  - Völker, Maximilian N.
A1  - Kraff, Oliver
A1  - Abuelhaija, Ashraf
A1  - Fiedler, Thomas M.
A1  - Solbach, Klaus
A1  - Quick, Harald H.
A1  - Ladd, Mark E.
T1  - Analysis of an integrated 8-Channel Tx/Rx body array for use as a body coil in 7-Tesla MRI
JF  - Frontiers in Physics
Y1  - 2017
U6  - https://doi.org/10.3389/fphy.2017.00017
SN  - 2296-424X
N1  - Article number 17
VL  - 5
IS  - Jun
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Höfken, Hans-Wilhelm
T1  - Backtrack5: Datensammlung und Reporterstellung für Pentester mit MagicTree
JF  - Hakin9
Y1  - 2012
SN  - 1733-7186
VL  - 73
IS  - 3
SP  - 12
EP  - 16
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Gerstenberger, Volker
A1  - Lahaije, Paul
T1  - Internet ID – Flexible Reuse of Mobile Phone Authentication Security for Service Access / Schuba, Marko ; Gerstenberger, Volker, ; Lahaije, Paul
Y1  - 2004
N1  - Nordsec 2004, Helsinki ; Nordic Workshop on Secure IT-systems <9, 2004>
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Maus, Stefan
A1  - Höfken, Hans-Wilhelm
A1  - Schuba, Marko
T1  - Forensic Analysis of Geodata in Android Smartphones
Y1  - 2011
N1  - Cyberforensics 2011, Glasgow
SP  - 1
EP  - 11
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Busboom, Axel
A1  - Herwono, Ian
A1  - Zavagli, Guido
T1  - Unambiguous Device Identification and Fast Connection Setup in Bluetooth / Busboom, Axel ; Herwono, Ian ; Schuba, Marko ; Zavagli, Guido
JF  - European wireless 2002 : next generation wireless networks: technologies, protocols, services and applications ; technical sessions: 26 - 28 February 2002, tutorials: 25 February 2002, Centro Affari, Florence, Italy ; proceedings / sponsored by EUREL ... General chair: Luciano Lenzini
Y1  - 2002
SP  - 1
EP  - 5
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Spaniol, Otto
T1  - Interconnection of Local Area Networks via ATM / Spaniol, Otto ; Schuba, Marko
JF  - High performance networks for multimedia applications / edited by André Danthine ...
Y1  - 1999
SN  - 0-7923-8274-9
SP  - 1
EP  - 10
PB  - Kluwer Academic Publ.
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Höfken, Hans-Wilhelm
A1  - Schaefer, Thomas
T1  - Smartphone Forensik
JF  - Hakin9 : Practical Protection
Y1  - 2012
SN  - 1733-7186
SP  - 10
EP  - 20
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Wrona, Konrad
T1  - Mobile Chip Electronic Commerce: Enabling Credit Card Payment for Mobile Devices / Schuba, Marko ; Wrona, Konrad
Y1  - 2000
N1  - eBiz2000 Specialist Conference @ CommunicAsia2000, Singapore, June 2000
SP  - 1
EP  - 6
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Schneider, Gaby
A1  - Haverkort, Boudewijn R.
T1  - QNA-MC: A Performance Evaluation Tool for Communication Networks with Multicast Data Streams / Schneider, G. ; Schuba, M. ; Haverkort, B. R.
JF  - Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)
Y1  - 1998
SN  - 3-540-64949-2
N1  - Lecture notes in computer  science ; 1469
SP  - 105
EP  - 116
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Reichl, Peter
T1  - An Analysis of Retransmission Strategies for Reliable Multicast Protocols / Schuba, M. ; Reichl, P.
JF  - Performance of information and communication systems : IFIP TC 6,WG 6.3 Seventh International Conference on Performance of Information and Communication Systems (PICS '98), 25 - 28 May, Lund, Sweden / ed. by Ulf Körner ...
Y1  - 1998
SN  - 0-412-83730-7
SP  - 1
EP  - 12
PB  - Chapman  Hall
CY  - London
ER  - 
TY  - JOUR
A1  - Schuba, Marko
T1  - Performance Analysis of Reliable Multicast Mechanisms for Widely Spread Distributed Applications in the Internet
JF  - International Conference on Parallel and Distributed Processing Techniques and Applications : PDPTA '99 ; June 28 - July 1, 1999, Las Vegas, Nevada, USA / ed.: Hamid R. Arabnia
Y1  - 1999
SN  - 1892512157
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Reichl, Peter
A1  - Hoff, Simon
T1  - How to Model Complex Periodic Traffic with TES / Reichl, Peter ; Schuba, Marko ; Hoff, Simon
JF  - Proc. of 13th United Kingdom Workshop on Performance Engineering, Edinburgh, UK, July 1997
Y1  - 1997
SP  - 17/1
EP  - 17/11
ER  -