1.Evolution of Radiological Treatment Response Assessments for Cancer Immunotherapy: From iRECIST to Radiomics and Artificial Intelligence
Nari KIM ; Eun Sung LEE ; Sang Eun WON ; Mihyun YANG ; Amy Junghyun LEE ; Youngbin SHIN ; Yousun KO ; Junhee PYO ; Hyo Jung PARK ; Kyung Won KIM
Korean Journal of Radiology 2022;23(11):1089-1101
Immunotherapy has revolutionized and opened a new paradigm for cancer treatment. In the era of immunotherapy and molecular targeted therapy, precision medicine has gained emphasis, and an early response assessment is a key element of this approach. Treatment response assessment for immunotherapy is challenging for radiologists because of the rapid development of immunotherapeutic agents, from immune checkpoint inhibitors to chimeric antigen receptor-T cells, with which many radiologists may not be familiar, and the atypical responses to therapy, such as pseudoprogression and hyperprogression.Therefore, new response assessment methods such as immune response assessment, functional/molecular imaging biomarkers, and artificial intelligence (including radiomics and machine learning approaches) have been developed and investigated.Radiologists should be aware of recent trends in immunotherapy development and new response assessment methods.
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