32 element cardiac phased array receiver coil

In-vivo and ex-vivo CMR imaging were performed to generate holographic 3D LGE models as described in the previous section. CMR imaging was performed using a 1.5 T Philips scanner (Philips Achieva, Best, Netherland) with a 32-element cardiac phased-array receiver coil. For in-vivo imaging, high-resolution 3D LGE images with random under-sampled accelerated acquisition [42 (link)–45 ] were acquired 15–25 minutes after injection of 0.2 mmol/kg gadobenate dimeglumine (MultiHance; Bracco Imaging, Milan, Italy). A respiratory navigator with adaptive acquisition window [47 (link)] was used for prospective motion correction. Imaging parameters were as follows: gradient echo imaging sequence; TR/TE = 6.1/2.7 ms; field of view = 270×270×112–280×280×112 mm³; flip angle = 25°; isotropic spatial resolution = 1.0×1.0×1.0 mm³. Ex-vivo imaging was performed using high-resolution 3D gradient echo sequence with the following imaging parameters: TR/TE = 17/8 ms; field of view = 130×130×100 mm³; flip angle = 25°, isotropic spatial resolution = 0.4×0.4×0.5 mm³.

CMR imaging was performed using a 1.5 T scanner (Philips Achieva, Best, The Netherlands) with a 32-element cardiac phased-array receiver coil. The phantom was stored and scanned at room temperature in the scanner room. We assumed temperature and subsequently diffusion was uniform along vials in our study. Scanning was strictly performed according to the T1MES phantom user manual [38 (link)]. All acquisitions were performed with a simulated electrocardiogram (ECG) at a RR (interval time between two R-waves) period of 900 ms (heart rate 67 bpm). The positioning process was consistent for all sessions throughout the study. The book used to lift the phantom, large towel, coil, software version of the scanner, and air-flow setting of the scanner room remained constant throughout the study.