Magnetically induced currents in a three-dimensional human body model

2002 ◽  
Vol 14 (1-4) ◽  
pp. 365-368 ◽  
Author(s):  
Carmen Golovanov ◽  
Daniela Urma ◽  
Mihaela Albu ◽  
D. Ioan
Keyword(s):  
Human Body ◽  
Three Dimensional ◽  
Human Body Model ◽  
Body Model ◽  
Induced Currents

Technology of Data Conversion and Reconstruction for Complex Surface Based on Non-Contact Measurement

2014 ◽  
Vol 685 ◽  
pp. 614-617 ◽  
Author(s):  
Jie Cai
Keyword(s):  
Physical Model ◽  
Human Body ◽  
Point Cloud ◽  
Three Dimensional ◽  
Data Conversion ◽  
Point Cloud Data ◽  
Human Body Model ◽  
Cloud Data ◽  
Contact Measurement ◽  
Body Model

Based on the technology of non-contact measurement, this paper has researched on complex curved surface physical modeling and data conversion technology, and has been applied to the human body modeling and data conversion in costume design. The measurement principle of grating projection is used to collect the point cloud data of surface of the physical model in a three-dimensional space. The point cloud data should be preprocessed with noise rejection, multi-view stitching and data reduction by Geomagic Studio software. Then the relatively regular surface area can be gotten by using parameter transformation, through two different ways. After that, the model surface data should be converted into Solidworks parts. By comparison and optimization, a better three-dimensional surface is gotten. A standard database of human body model has been set up and the main parameters of human body model data will be obtained by combined with non-contact three-dimensional measurement system. After all, part of the parameterization of the physical model has been realized through the work of invoking the model of the standard library, comparing the standard model with measured body model, doing the error analysis and so on.

A New Method to Concentrate Electromagnetic Field Within ROI Using a High Dielectric Material in 3T Body MRI

2013 ◽  
Author(s):  
Bu S. Park ◽  
Sunder S. Rajan ◽  
Leonardo M. Angelone
Keyword(s):  
Numerical Simulation ◽  
Electromagnetic Field ◽  
Human Body ◽  
Region Of Interest ◽  
Dielectric Materials ◽  
The Body ◽  
Human Body Model ◽  
Body Model ◽  
Simulation Results ◽  
High Dielectric

We present numerical simulation results showing that high dielectric materials (HDMs) when placed between the human body model and the body coil significantly alter the electromagnetic field inside the body. The numerical simulation results show that the electromagnetic field (E, B, and SAR) within a region of interest (ROI) is concentrated (increased). In addition, the average electromagnetic fields decreased significantly outside the region of interest. The calculation results using a human body model and HDM of Barium Strontium Titanate (BST) show that the mean local SAR was decreased by about 56% (i.e., 18.7 vs. 8.2 W/kg) within the body model.

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