Application of molecular imaging technology in tumor immunotherapy

Cancer immunotherapy owing to high anti-tumor efficacy has attracted wide attention from experts in various fields. Since the tumor immune response involves tumor cells, other cells, and molecules in the tumor microenvironment, the response detection has become very complex and variable. Molecular imaging technology, namely non-invasive whole-body molecular imaging, enables detection of cancer immunotherapy by positron emission tomography and single-photon emission computed tomography.