Update Figures/Fig1.png, README.md, Figures/Fig3.png

README.md

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 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")-->
+
+![Fig1](Figures/Fig1.png)
+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.
+
+![Fig3](Figures/Fig3.png)
+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