Regadenoson Stress Testing: A Comprehensive Review With a Focused Update

Figures

• 

  Figure 1. The chemical structure of adenosine National Center for Biotechnology Information (2020). PubChem Compound Summary for CID 60961, Adenosine. Retrieved October 13, 2020, from https://pubchem.ncbi.nlm.nih.gov/compound/Adenosine [10]

• 

  Figure 2. The chemical structure of regadenoson National Center for Biotechnology Information (2020). PubChem Compound Summary for CID 219024, Regadenoson. Retrieved October 13, 2020, from https://pubchem.ncbi.nlm.nih.gov/compound/Regadenoson [10]

• 

  Figure 3. Two-dimensional reconstructive images of scintigraphy (lower images) and its correspondence to three-dimensional heart model (upper images) Two-dimensional reconstruction of scintigraphy images representing normal perfusion patterns (lower images), in line with the minor axis (1), vertical long axis (2), and horizontal long axis (3) cross-sections and their respective corresponding anatomical cross-sections (upper images) A: anterior; AP: apical; I: inferior; L: lateral; S: septal Adapted from Mastrocola LE [24]

• 

  Figure 4. Numerical segmentation model of the left ventricular myocardium in 17 segments Considering the tomographic slices of the minor and long vertical axes (distal or apical, middle, and basal or proximal portions), representing the myocardial regions. Furthermore, correspondence of segments may be seen as presented in the polar map, which represents radiopharmaceutical distribution throughout the left ventricular myocardium in the form of a polar map, whose center corresponds to the apex and whose peripheries correspond to the basal portions [24].