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NEWS
Dec 8, 2015

Sim4Life V2.2 Release

Sim4Life V2.2 Release

The new release includes improvements and features that streamline and widen application flows in areas of MRI safety assessments and equipment optimization, wireless technology, and in silico assessment of bio-medical phenomena - overall greatly facilitating exploration and design, as well as regulatory submission and acceptance. Further enhancements address exposure assessment of Wireless Power Transfer (WPT) systems, in-silico optimization of in-/on-body wireless devices, and the simulation of 5G wireless systems.

Key new features of Sim4Life V2.2 include:

FRAMEWORK

The Sim4Life Framework efficiently facilitates all steps in complex multiphysics modeling, from definition of the problem, discretization, simulation, and analysis, to visualization of the results, with clarity and flexibility.

  • The tools for anatomical modeling include a new physics-based poser engine for the ViP V3.1 Computable Phantoms, achieving greatly improved results for challenging postures (e.g., extreme joint angles).
  • A new Lattice-Based Morphing engine allows for interactive (with fast-rendering preview) morphing of complex CAD objects (solids, meshes).
  • Productivity and framework enhancements comprise new modeling and alignment tools; plane clipping; camera settings; setup for acoustic; many Python scripting extensions (interfacing of NEURO solver and other simulations/tools); units conversion; local modeling grids; calculators, e.g., for materials, and much more.
  • The analysis and post-processing workflow has been streamlined to make access to and quantification of the results more effective. For instance, we have added various far-field extensions; an antenna array wizard; better markers for 2D plots; additional data importers/exporters and last but not least additional dosimetric averaging methods for assessment of compliance with safety standards such as IEEE 95-1 2005; ICNIRP 1998; ICNIRP 2010.

MODEL DISCRETIZATION

Sim4Life offers a powerful array of discretization tools, ranging from the interactive generation of geometrically adaptive rectilinear grids to methods for unstructured mesh generation in FEM-based solvers.

  • The new Topological Voxeler achieves better results with coarser grids when discretizing complex structures with fine gaps and holes (fine control of spacing and gap filling), resulting in a smaller grid and more than an order of magnitude faster runtime for specific structures.

SOLVERS

The powerful Sim4Life solvers are specifically developed for computationally complex problems.

  • EM FDTD
    • In the P-EM-FDTD solver, we added Debye, Lorentz, Drude, and generic dispersion models (electric and magnetic) along with an improved dispersive parameter fitting tool. This is particularly useful for the simulation of ferrites.
    • We added a bi-directional extension of the generalized Huygens approach in EM-FDTD to allow the incorporation of back-scattering and independent excitation of fields and remote objects.
  • EM LF
    • Various enhancements and extensions in the P-EM-LF module have been made, including multi-CPU/core and MPI parallelization.
  • NEURO
    • Extensions of the NEURO neuronal dynamics modeling functionality, including support for (large) sets of neurons, a Python scripting interface and additional predefined dynamics models.
  • Acoustic
    • The P-ACOUSTICS module is now multi-GPU accelerated. It now also features dedicated modeling tools, which allow quick and intuitive setup of complex transducer arrays.
  • Mode Matching
    • We added a new solver based on the mode matching technique for the efficient and accurate simulation of passive waveguide structures (quasi-analytic computation of coupling between canonical waveguide cross-sections).

MODULES

Application modules extend Sim4Life’s functionality and simplify and accelerate complex tasks.

  • We have a new IMSAFE-G module (preview) for assessment of MRI safety of active implanted medical devices with respect to gradient-induced fields.
  • The MATCH module for determination of S-Parameters, fields, and port parameters has been improved and allows extraction of all results w/o resimulation.

The complete list of improvements, fixes, and new features is included in the Release Notes.


If you are interested in experiencing the power and elegance of Sim4Life V2.2, or require further information, please email us at s4l-sales@zmt.swiss or call us at +41 44 245 9765.

The relevant Sim4Life installers for Win7/Win8/8.1/Win10 64-bit platforms can be downloaded here. All customers with an up-to-date Annual Maintenance & Support plan can access Sim4Life V2.2 immediately. The login information is the same as for V2.0. Please contact us if you do not have the correct login information.

At ZMT Zurich Med Tech AG, we provide our customers with the most innovative software solutions, testing equipment, and support.

The Sim4Life Team
s4l-sales@zmt.swiss

 

In silico safety assessment and optimization of WPT systems with Sim4Life: LF simulation (EM-FDTD or LF-FEM) of posed computable phantom sitting at a desk (with WPT coil system).

 

A new level of performance is reached with our EM-FDTD subgrid engine and GPU for simulating a complex on-body device (smartwatch, 10 µm resolution) on a high-resolution computable human phantom (reduction of computation time from one week to four hours).

 

The new physics based Poser engine for the ViP V3 Computable Phantoms provides much improved results for challenging postures (Duke, original tet base-mesh [blue] and smoothly posed result).

 

The new Poser engine allows calculation of realistic complex postures for the Computational Phantoms in Sim4Life that could not be smoothly achieved with the previous Poser tool.