Achieva 1.5 tesla mr scanner

The CMR imaging protocol was employed on a clinical Philips Achieva 1.5 Tesla MR scanner. Electrocardiogram (ECG)-gated b-SSFP cine sequences were acquired for long-axis 2- and 4- chamber views (CV) as well as a short axis stack. Imaging parameters were as follows: 40 frames/cardiac cycle, pixel spacing 0.8mm x 0.8mm, 8mm slice thickness as well as inter-slice gap, TE 1.5ms, TR 3ms. LVEF was assessed in the SA stack [1 (link)].

All DTI data for the patient and healthy participants were acquired on a Philips Achieva 1.5 Tesla MR scanner in Oxford. Whole brain diffusion weighted imaging was performed using a single-shot echo planar sequence. The scanning parameters were echo time (TE) = 65 ms, repetition time (TR) = 9390 ms, reconstructed matrix 176 × 176 and reconstructed voxel size of 1.8 × 1.8 mm and slice thickness of 2 mm. We used 33 optimal nonlinear diffusion gradient directions (b = 1200 s/mm²) and one non-diffusion weighted volume (b = 0) for the DTI acquisition. The post-DBS DTI data was acquired with DBS turned off.