Imaging assessment of tumor response: Past, present and future Journal Article


Authors: Afaq, A.; Akin, O.
Article Title: Imaging assessment of tumor response: Past, present and future
Abstract: Anatomical response assessment criteria have been in use for decades, with the WHO guidelines being replaced by Response Evaluation Criteria in Solid Tumors (RECIST), updated in 2009 to RECIST 1.1. These methods rely on a change in size of a tumor as the main response criteria, but newer cytostatic agents tend to target tumor function at a molecular level before changing the size of a lesion. Recent modifications, such as the Choi criteria, have improved assessment by taking into account density of tumor, but all of these criteria fail to utilize functional imaging parameters, which are becoming increasingly available, including perfusion CT, perfusion MRI, diffusion-weighted imaging, magnetic resonance spectroscopy, dynamic contrast-enhanced ultrasound and combined PET/computed tomography. Developments in these modalities and standardization of imaging acquisition will help to optimize the next set of response criteria, with inclusion of multiparametric, functional modalities, evaluating tumors at the same molecular level at which they are being targeted by therapeutic agents. © 2011 Future Medicine Ltd.
Keywords: review; bevacizumab; cancer growth; nuclear magnetic resonance imaging; positron emission tomography; neoplasm; gastrointestinal stromal tumor; computer assisted tomography; breast cancer; practice guideline; bone lesion; recist; combretastatin a4 phosphate; imaging; drug cytotoxicity; diffusion weighted imaging; perfusion weighted imaging; cytostatic agent; cyst; functional cancer imaging; tumor response assessment
Journal Title: Future Oncology
Volume: 7
Issue: 5
ISSN: 1479-6694
Publisher: Future Medicine  
Date Published: 2011-05-01
Start Page: 669
End Page: 677
Language: English
DOI: 10.2217/fon.11.38
PROVIDER: scopus
PUBMED: 21568682
DOI/URL:
Notes: --- - "Export Date: 23 June 2011" - "Source: Scopus"
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  1. Oguz Akin
    265 Akin
  2. Asim Ahmed Afaq
    13 Afaq