Microvascular Dysfunction or Diffuse Epicardial CAD With Normal Stress Vasodilation.

Competing Interests: Funding Support and Author Disclosures This research was supported by internal funds of the Weatherhead PET Center. Dr Gould has received internal funding from the Weatherhead PET Center; and is the applicant for 510(k) FDA cleared HeartSee K171303 PET software. Dr Johnson has received internal funding from Weatherhead PET Center for Preventing and Reversing Atherosclerosis and research support from St. Jude Medical (for NCT02184117) and Volcano/Philips Corporation (for NCT02328820). To avoid any conflict of interest, Drs Gould and Johnson waived their rights to the royalties that they were personally eligible to receive from sales of the intellectual property developed by them and licensed by UTHealth to third parties. UTHealth approved their request that all derived royalties be redirected to student scholarships or UTHealth’s Weatherhead PET Center research. UTHealth has a financial interest related to intellectual property via its affiliation with the UTHealth’s Weatherhead PET Imaging Center. Dr Narula has reported that he has no relationships relevant to the contents of this paper to disclose.