Objective: In myocardial perfusion single-photon emission computed tomography (SPECT), abdominal activity often interferes with the evaluation of perfusion in the inferior wall, especially after pharmacological stress. In this randomized study, we examined the effect of carbonated water intake versus still water intake on the quality of images obtained during myocardial perfusion images (MPI) studies. Methods: A total of 467 MIBI studies were randomized into a carbonated water group and a water group. The presence of intestinal activity adjacent to the inferior wall was evaluated by two observers. Furthermore, a semiquantitative analysis was performed in the adenosine subgroup,using a count ratio of the inferior myocardial wall and adjacent abdominal activity. Results: The need for repeated SPECT in the adenosine studies was 5.3 % in the carbonated water group versus 19.4 % in the still water group (p = 0.019). The inferior wall-to-abdomen count ratio was significantly higher in the carbonated water group compared to the still water group (2.11 ± 1.00 vs. 1.72 ± 0.73, p\0.001). The effect of carbonated water during rest and after exercise was not significant. Conclusions: This randomized study showed that carbonated water significantly reduced the interference of extra-cardiac activity in adenosine SPECT MPI. Keywords: Extra-cardiac radioactivity, Myocardial SPECT, Image quality enhancement, Carbonated water
Fresh water systems are rapidly changing and water quality is deteriorating as a result of climate change. Aquatic drones can help us understand these changes - which will be key to tackling water-related challenges ahead.The ideas presented in this article aim to inspire adaptation action – they are the views of the author and do not necessarily reflect those of the Global Center on Adaptation.
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The Netherlands is facinggreat challenges to achieve (inter)national climate mitigation objectives inlimited time, budget and space. Drastic innovative measures such as floatingsolar parks are high on political agendas and are entering our water systems.The clear advantages of floating solar (multifunctional use of space) led to afast deployment of renewable energy sources without extensive research toadequately evaluate the impacts on our environment. Acquisition ofresearch data with holistic monitoring methods are urgently needed in order toprevent disinvestments.In this project 10 SMEs with different expertiseand technologies are joining efforts with researchers and four public parties(and 12 indirectly involved) to answer the research question “Which monitoringtechnologies and intelligent data interpretation techniques are requiredto be able to conduct comprehensive, efficient and cost effective monitoring ofthe impacts of floating solar panels in their surroundings?"The outputs after a two-yearproject will play a significant and indispensable role in making Green EnergyResources Greener. Specific output includes a detailed inventory of existingprojects, monitoring method for collection/analysis of datasets(parameters/footage on climate, water quality, ecology) on the effects offloating solar panels on the environment using heterogeneous unmanned robots,workshops with public & private partners and stakeholders,scientific and technical papers and update of national guidelines for optimizingthe relationship between solar panels and the surrounding environment. Projectresults have a global interest and the consortium partners aim at upscaling forthe international market. This project will enrich the involved partners withtheir practical knowledge, and SMEs will be equipped with the new technologiesto be at the forefront and benefit from the increasing floating solar marketopportunities. This project will also make a significant contribution tovarious educational curricula in universities of applied sciences.The Netherlands is facinggreat challenges to achieve (inter)national climate mitigation objectives inlimited time, budget and space. Drastic innovative measures such as floatingsolar parks are high on political agendas and are entering our water systems.The clear advantages of floating solar (multifunctional use of space) led to afast deployment of renewable energy sources without extensive research toadequately evaluate the impacts on our environment. Acquisition ofresearch data with holistic monitoring methods are urgently needed in order toprevent disinvestments.In this project 10 SMEs with different expertiseand technologies are joining efforts with researchers and four public parties(and 12 indirectly involved) to answer the research question “Which monitoringtechnologies and intelligent data interpretation techniques are requiredto be able to conduct comprehensive, efficient and cost effective monitoring ofthe impacts of floating solar panels in their surroundings?"The outputs after a two-yearproject will play a significant and indispensable role in making Green EnergyResources Greener. Specific output includes a detailed inventory of existingprojects, monitoring method for collection/analysis of datasets(parameters/footage on climate, water quality, ecology) on the effects offloating solar panels on the environment using heterogeneous unmanned robots,workshops with public & private partners and stakeholders,scientific and technical papers and update of national guidelines for optimizingthe relationship between solar panels and the surrounding environment. Projectresults have a global interest and the consortium partners aim at upscaling forthe international market. This project will enrich the involved partners withtheir practical knowledge, and SMEs will be equipped with the new technologiesto be at the forefront and benefit from the increasing floating solar marketopportunities. This project will also make a significant contribution tovarious educational curricula in universities of applied sciences.
The Netherlands is facing great challenges to achieve (inter)national climate mitigation objectives in limited time, budget and space. Drastic innovative measures such as floating solar parks are high on political agendas and are entering our water systems . The clear advantages of floating solar (multifunctional use of space) led to a fast deployment of renewable energy sources without extensive research to adequately evaluate the impacts on our environment. Acquisition of research data with holistic monitoring methods are urgently needed in order to prevent disinvestments. In this proposal ten SMEs with different expertise and technologies are joining efforts with researchers and four public parties (and 12 indirectly involved) to answer the research question “Which monitoring technologies and intelligent data interpretation techniques are required to be able to conduct comprehensive, efficient and cost-effective monitoring of the impacts of floating solar panels in their surroundings?" The outputs after a two-year project will play a significant and indispensable role in making Green Energy Resources Greener. Specific output includes a detailed inventory of existing projects, monitoring method for collection/analysis of datasets (parameters/footage on climate, water quality, ecology) on the effects of floating solar panels on the environment using heterogeneous unmanned robots, workshops with public & private partners and stakeholders, scientific and technical papers and update of national guidelines for optimizing the relationship between solar panels and the surrounding environment. Project results have a global interest and the consortium partners aim at upscaling for the international market. This project will enrich the involved partners with their practical knowledge, and SMEs will be equipped with the new technologies to be at the forefront and benefit from the increasing floating solar market opportunities. This project will also make a significant contribution to various educational curricula in universities of applied sciences.
The application of sensors in water technology is a crucial step to provide broader, more efficient and circular systems. Among the different technologies used in this field, ultrasound-based systems are widely used, basically to generate energy peaks for cell lysis and particle separation. In this work, we propose the adaptation of an ultrasound system to monitor the concentration of solid particles in wastewater treatment plants settlers as well as to indicate sludge level (real time). A similar sensor was developed and tested in another project which operated successfully at solids concentration up to 1% in UASB reactors. Such measurements are nowadays obtained via time-consuming physical (solids) analysis, which can compromise the efficiency of the settlers and the quality of the effluent. The present project proposes an improved version of the sensor, which will combine solids concentration monitoring and sludge level detection. The defined targets have the intention to make a sensor with a much broader range of applications, been suitable not only for UASB reactors but also to settler and aerobic tanks. The project is a cooperation between the Water Technology lectoraat of NHL Stenden University of Applied Sciences, two SME’s - YNOVIO B.V. and Lamp-ion B.V. - and the INCT group (Brazil). If proven feasible, the concept can generate a big business market to the involved Dutch partners as well as favor the automation of WWTP in the Netherlands, Brazil and around the world.
