Molecular Imaging of the Tumor Microenvironment Marty Pagel, PhDProfessorDepartment of Medical PhysicsDepartment of RadiologyUniversity of Wisconsin-Madison Abstract:Tumor acidosis, hypoxia, and vascular perfusion are well-known characteristics of the tumor microenvironment. We have developed MRI, MR Fingerprinting, PET/MRI, electron paramagnetic resonance imaging (EPRI), and photoacoustic imaging (PAI) to quantitatively measure extracellular pH, oxygenation, and pharmacokinetic transport rates...