Registration and Summation of Respiratory-Gated or Breath-Hold PET Images Based on Deformation Estimation of Lung from CT Image

<div>Location of 15 simulated small tumors in lung of XCAT phantom.</div>

Computational and Mathematical Methods in Medicine

Figure 2: Registration and Summation of Respiratory-Gated or Breath-Hold PET Images Based on Deformation Estimation of Lung from CT Image 