QISS is a robust method for nonenhanced MRA that conventionally uses a TrueFISP readout. At 3 Tesla, use of TrueFISP is challenging due to high RF power deposition and sensitivity to off-resonance artifacts. In order to overcome these limitations, we implemented a QISS technique that incorporates a new type of readout that is a hybrid of TrueFISP and FLASH pulse sequences, which we call “Fast Interrupted Steady-State” (FISS). A pilot study was conducted to evaluate the potential benefits of QISS FISS at 3 Tesla for evaluation of the peripheral arteries and great vessels of the chest.
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