FIGURE 3.  ^99mTc-Sestamibi pinhole SPECT images of treated rat 1, 3, 5, and 7 mo after MI and, in center column, dual ¹¹¹In/^99mTc-sestamibi pinhole SPECT images 48 h after transplantation. Perfusion improved in areas that had only moderate defects before treatment (around 60% uptake), both at implantation site (black arrow) and at neighboring site (white arrow). A = anterior wall; I = inferior wall; L = lateral wall; and S = septal wall.