Page 254 - Computational Modeling in Biomedical Engineering and Medical Physics
P. 254

Magnetic stimulation and therapy  243























                          (A)                (B)                  (C)                (D)
                   Figure 7.13 Magnetic flux density (left) and electric field strength (right) in the femur with a fixa-
                   tion plate; magnetic field concentrators are attached to the coils (Baerov et al., 2020). (A) Magnetic
                   flux density with fixator. (B) Electric field strength with fixator. (C) Magnetic flux density without
                   fixator. (D) Electric field strength without fixator.

                   Table 7.5 Electric and magnetic fields maxima in the MFT simulation.
                                               Concentrator and fixator  Fixator    Concentrator

                   Fixator     B max (mT)      40                       20
                   Bone        B max (mT)      20                       10          30
                               E max (V/m)     0.44                     0.24        0.28
                   MFT, Magnetic field therapy.






















                   Figure 7.14 Numerical simulation result for MFT (Baerov et al., 2020). (A) Magnetic field density.
                   (B) Electric field strength. (C) Temperature after 15 min B37 C. MFT, Magnetic field therapy.
   249   250   251   252   253   254   255   256   257   258   259