Myocardial perfusion imaging is clinically established for the detection of myocardial ischemia and requires rapid imaging to monitor the uptake of a contrast-agent in the heart. Spatial resolution or coverage is commonly increased by exploiting temporal correlations, at the risk of inducing temporal blurring. Here, we investigate the use of simulteaneous multi-slice imaging for high spatial-only acceleration. Outer-volume-suppression using multi-band saturation-slabs (MB-OVS) were used to facilitate high multi-band factors. Phantom results, show through signal suppression outside region-of-interest with MB-OVS. In-vivo results show robust image quality throughout the contrast uptake and washout with 9-slice LV coverage at a temporal resolution <550ms.