Abstract
Angiogenesis, the growth of new blood vessels, is a critical component in the development of solid tumors. Over the last decade, progress in the study of the biology of angiogenesis has led to identification of a large number of molecules that promote, participate, and regulate the growth of new vessels in normal tissue and in tumors. Consequently, many new targets for suppression of angiogenesis have been identified and are now at various stages of development and evaluation in clinical trials. Magnetic resonance imaging (MRI) provides an attractive tool for in vivo analysis of the basic biology of angiogenesis, for preclinical evaluation of the activity of a number of potential antiangiogenic agents, as well as for clinical detection, diagnosis, and prognosis. One of the features of MRI is the wide range of physiologic parameters by which angiogenesis can be imaged. This review presents the biological basis of angiogenesis with emphasis on characteristics of the neovasculature that can be used for imaging, followed by an overview of the MRI approaches that are being evaluated for the analysis of tumor angiogenesis.
Published Version
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