Fig. 4

Hybrid PET/MRI myocardial perfusion assessment in a patient with hypertrophic cardiomyopathy. The apparent dilatation of left ventricular cavity during adenosine challenge (first column) is caused by a stress-induced subendocardial hypoperfusion as demonstrated by MRI MPI (column two to five). (Reprinted with permission from Kunze KP, Nekolla SG, Rischpler C, et al. Myocardial perfusion quantification using simultaneously acquired 13NH3-ammonia PET and dynamic contrast-enhanced MRI in patients at rest and stress. Magn Reson Med. 2018;00:1–14. https://doi.org/10.1002/mrm.27213)