TY  - JOUR
A1  - Maas, Marnix C.
A1  - Vos, Eline K.
A1  - Lagemaat, Miriam W.
A1  - Bitz, Andreas
A1  - Orzada, Stephan
A1  - Kobus, Thiele
A1  - Kraff, Oliver
A1  - Maderwald, Stefan
A1  - Ladd, Mark E.
A1  - Scheenen, Tom W. J.
T1  - Feasibility of T₂-weighted turbo spin echo imaging of the human prostate at 7 tesla
JF  - Magnetic Resonance in Medicine
N2  - Purpose
To demonstrate that high quality T₂-weighted (T2w) turbo spin-echo (TSE) imaging of the complete prostate can be achieved routinely and within safety limits at 7 T, using an external transceive body array coil only.

Methods
Nine healthy volunteers and 12 prostate cancer patients were scanned on a 7 T whole-body system. Preparation consisted of B₀ and radiofrequency shimming and localized flip angle calibration. T₁ and T₂ relaxation times were measured and used to define the T2w-TSE protocol. T2w imaging was performed using a TSE sequence (pulse repetition time/echo time 3000–3640/71 ms) with prolonged excitation and refocusing pulses to reduce specific absorption rate.

Results
High quality T2w TSE imaging was performed in less than 2 min in all subjects. Tumors of patients with gold-standard tumor localization (MR-guided biopsy or prostatectomy) were well visualized on 7 T imaging (n = 3). The number of consecutive slices achievable within a 10-g averaged specific absorption rate limit of 10 W/kg was ≥28 in all subjects, sufficient for full prostate coverage with 3-mm slices in at least one direction.

Conclusion
High quality T2w TSE prostate imaging can be performed routinely and within specific absorption rate limits at 7 T with an external transceive body array.
Y1  - 2014
U6  - https://doi.org/10.1002/mrm.24818
SN  - 1522-2594
VL  - 71
IS  - 5
SP  - 1711
EP  - 1719
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Maike, Müller
A1  - Lenz, Laura
A1  - Wolf, Martin
T1  - Steigerung der Effektivität durch Prozessmodellierungs-Tools - Änderbarkeit und Transparenz von Prozessen am Beispiel der Business Simulation Apollo 13
T2  - Informatik 2014
N2  - Die Nutzung von Prozessmodellierungsmethoden oder - werkzeugen kann erheblichen Einfluss auf die Effektivität von Prozessen haben. Das gilt insbesondere für Situationen, in denen Personen unter Stress stehen oder ungeübt sind. In diesen Fällen geben Prozessmodelle konkrete Empfehlungen, nach denen sich die handelnden Personen richten könnten. In Experimenten mit der Business-Simulation Apollo 13 haben wir den Effekt eines Einsatzes von Prozessmodellierungsmethoden und -werkzeugen untersucht. Bereits bekannte Theorien (z.B. über geeignete Verhältnisse von Kommunikationsinhalten) konnten bestätigt werden. Darüber hinaus haben wir eine besondere Bedeutung der Übertragbarkeit von Prozessmodellen in konkrete Handlungen identifiziert.
Y1  - 2014
SN  - 978-3-88579-626-8
SN  - 1617-5468
SP  - 357
EP  - 369
PB  - Gesellschaft für Informatik e.V.
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Neugebauer, Georg
A1  - Brutschy, Lucas
A1  - Meyer, Ulrike
A1  - Wetzel, Susanne
ED  - Garcia-Alfaro, Joaquin
ED  - Lioudakis, Georgios
ED  - Cuppens-Boulahia, Nora
ED  - Foley, Simon
ED  - Fitzgerald, William M.
T1  - Privacy-preserving multi-party reconciliation secure in the malicious model
T2  - DPM 2013, SETOP 2013: Data Privacy Management and Autonomous Spontaneous Security
N2  - The problem of fair and privacy-preserving ordered set reconciliation arises in a variety of applications like auctions, e-voting, and appointment reconciliation. While several multi-party protocols have been proposed that solve this problem in the semi-honest model, there are no multi-party protocols that are secure in the malicious model so far. In this paper, we close this gap. Our newly proposed protocols are shown to be secure in the malicious model based on a variety of novel non-interactive zero-knowledge-proofs. We describe the implementation of our protocols and evaluate their performance in comparison to protocols solving the problem in the semi-honest case.
KW  - Privacy-enhancing technologies
KW  - Secure multi-party computation
KW  - Cryptographic protocols
KW  - Zero-knowledge proofs
KW  - Malicious model
Y1  - 2014
SN  - 978-3-642-54567-2 (Print)
SN  - 978-3-642-54568-9 (Online)
U6  - https://doi.org/10.1007/978-3-642-54568-9_12
N1  - 8th International Workshop, DPM 2013, and 6th International Workshop, SETOP 2013, Egham, UK, September 12-13, 2013.

Part of the Lecture Notes in Computer Science book series (LNSC,volume 8247)
SP  - 178
EP  - 193
PB  - Springer
CY  - Berlin
ER  -