Open SPEN using Pulseq

Motivation: SPEN is an alternative encoding method with various advantages. However, SPEN sequences are not easily accessible. Goal(s): The aim of this project is to make SPEN in the open-source framework Pulseq openly available. This enables reproducibility and availability of SPEN. Approach: The SPEN sequence was developed in MATLAB using the Pulseq framework and is openly accessible via a GitHub repository. In addition, a sequence example is developed as a guide for the use of SPEN. Results: A SPEN sequence is openly available for the vendor-independent execution on different platforms. Impact: The implementation in Pulseq significantly increases the accessibility of SPEN. This hopefully leads to more SPEN-related studies and to a more widespread use in clinical applications.