Refine
Year of publication
- 2016 (79) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (29)
- Fachbereich Chemie und Biotechnologie (18)
- IfB - Institut für Bioengineering (16)
- Fachbereich Elektrotechnik und Informationstechnik (12)
- INB - Institut für Nano- und Biotechnologien (10)
- Fachbereich Luft- und Raumfahrttechnik (8)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (6)
- Institut fuer Angewandte Polymerchemie (5)
- Fachbereich Bauingenieurwesen (4)
- Fachbereich Maschinenbau und Mechatronik (4)
Has Fulltext
- no (79)
Language
- English (79) (remove)
Document Type
- Article (79) (remove)
Keywords
- Additive Manufacturing (1)
- Annulus Fibrosus (1)
- Asymptotic efficiency (1)
- Bacillus atrophaeus (1)
- Balance (1)
- Balanced hypergraph (1)
- Cardiac myocytes (1)
- Cardiac tissue (1)
- CellDrum (1)
- Censored data (1)
Robots are widely used as a vehicle to spark interest in science and technology in learners. A number of initiatives focus on this issue, for instance, the Roberta Initiative, the FIRST Lego League, the World Robot Olympiad and RoboCup Junior. Robotic competitions are valuable not only for school learners but also for university students, as the RoboCup initiative shows. Besides technical skills, the students get some project exposure and experience what it means to finish their tasks on time. But qualifying students for future high-tech areas should not only be for students from developed countries. In this article, we present our experiences with research and education in robotics within the RoboCup initiative, in Germany and South Africa; we report on our experiences with trying to get the RoboCup initiative in South Africa going. RoboCup has a huge support base of academic institutions in Germany; this is not the case in South Africa. We present our ‘north–south’ collaboration initiatives in RoboCup between Germany and South Africa and discuss some of the reasons why we think it is harder to run RoboCup in South Africa.
Purpose
To assess the feasibility of prostate ¹H MR spectroscopic imaging (MRSI) using low-power spectral-spatial (SPSP) pulses at 7T, exploiting accurate spectral selection and spatial selectivity simultaneously.
Methods
A double spin-echo sequence was equipped with SPSP refocusing pulses with a spectral selectivity of 1 ppm. Three-dimensional prostate ¹H-MRSI at 7T was performed with the SPSP-MRSI sequence using an 8-channel transmit array coil and an endorectal receive coil in three patients with prostate cancer and in one healthy subject. No additional water or lipid suppression pulses were used.
Results
Prostate ¹H-MRSI could be obtained well within specific absorption rate (SAR) limits in a clinically feasible time (10 min). Next to the common citrate signals, the prostate spectra exhibited high spermine signals concealing creatine and sometimes also choline. Residual lipid signals were observed at the edges of the prostate because of limitations in spectral and spatial selectivity.
Conclusion
It is possible to perform prostate ¹H-MRSI at 7T with a SPSP-MRSI sequence while using separate transmit and receive coils. This low-SAR MRSI concept provides the opportunity to increase spatial resolution of MRSI within reasonable scan times.