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In this work, the value of a radial variant of the conventional modified Look\u2010Locker inversion recovery sequence (raMOLLI) is demonstrated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The raMOLLI acquisition scheme consisted of five radial echo trains of 80 spokes acquired using either a fast low\u2010angle shot (FLASH) or a true fast imaging with steady\u2010state\u2010precession (TrueFISP) readout at different time points after a single magnetization inversion. View sharing combined with a compressed sensing algorithm allowed the reconstruction of 50 images along the T<jats:sub>1<\/jats:sub> relaxation recovery curve, to which a dictionary\u2010fitting approach was applied to estimate T<jats:sub>1<\/jats:sub>. The sequence was validated on a nine\u2010vial phantom, on 19 healthy subjects, and one patient suffering from dilated cardiomyopathy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The raMOLLI sequence allowed a significant decrease of myocardial T<jats:sub>1<\/jats:sub> map acquisition time down to five heartbeats, while exhibiting a higher degree of accuracy and a comparable precision on T<jats:sub>1<\/jats:sub> value estimation than the conventional modified Look\u2010Locker inversion recovery sequence. The FLASH readout demonstrated a better robustness to B<jats:sub>0<\/jats:sub> inhomogeneities than TrueFISP, and was therefore preferred for in vivo acquisitions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>This sequence represents a good candidate for ultrafast acquisition of myocardial T<jats:sub>1<\/jats:sub> maps. 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