diff --git a/Figures/Fig1.png b/Figures/Fig1.png new file mode 100644 index 0000000000000000000000000000000000000000..d6c320f5a3bffbbf5f1e72b3a6b3f8a3d668f8c0 Binary files /dev/null and b/Figures/Fig1.png differ diff --git a/Figures/Fig3.png b/Figures/Fig3.png new file mode 100644 index 0000000000000000000000000000000000000000..7b0b8267f21b10712156259184665fbe951fe197 Binary files /dev/null and b/Figures/Fig3.png differ diff --git a/README.md b/README.md index 585d3d05d7cb8365d3bcfa6829b03d29a404db7f..a36a6daeb01d5351bf21c24a23b0ae6874dcf443 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,15 @@ This work investigates an open-source, low-cost, 8-channel transmit/receive head coil to enable rapid and reproducible pTx development, safety assessment and evaluation at 3T. FDTD simulations were validated with phantom measurements on a 3T with an external pTx system. Relative and absolute 2D/3D B1+-maps were acquired to compute the CP+ mode, and two RF shims were tailored to enforce B1+ efficiency and homogeneity. The open-access design files could serve as a basis for new RF coil designs or pTx projects without needing high expertise in RF coil development or as a cost-effective alternative for multi-centre studies. +The full ISMRM Abstract submission can be accessed here: TBD <!--[ISMRM 2023 submission](/pdfs/ISMRM31_pTxHeadCoil.pdf "ISMRM 2023 submission")--> <br /> +The RF coil design files can be accessed here: TBD <!--[RF coil design files](/designfiles/xxx.zip "RF coil design files")--> + + +Figure 1: (A): The computer-aided design (CAD) model of the proposed coil; (B): Finite-difference time-domain (FDTD) model of the eight coil elements and Duke's body model; (C): Assembled RF coil including baluns and the connection to the RX/TX switch box and the used 3T system. + + +Figure 3: Validation of the simulated B1+ of channel 1 (A) and measured B1+ of channel 1 in a matching phantom (B); elements 2-8 were left open. The quantitative comparison of simulated and measured B1+ shows a scaling factor of 1.45 (the pixel-wise evaluation has been performed in the masked phantom region, see Fig.3A and B), consistent with the measured voltage losses due to cable loss and TX/RX switch. The other channels resulted in a similar trend (not shown). + ## RF coil specifications - 8-channel transmit/receive