Cited by 677Radiomics and Machine Learning in Medical ImagingMedical Imaging Techniques and ApplicationsMRI in cancer diagnosis

Imaging Intratumor Heterogeneity: Role in Therapy Response, Resistance, and Clinical Outcome

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O'Connor, James P.B., Rose, Chris J., Waterton, John C., Carano, Richard A.D., Parker, Geoff J.M., Jackson, Alan·2015·Clinical Cancer Research

Published version of a preprint

Abstract

Tumors exhibit genomic and phenotypic heterogeneity, which has prognostic significance and may influence response to therapy. Imaging can quantify the spatial variation in architecture and function of individual tumors through quantifying basic biophysical parameters such as CT density or MRI signal relaxation rate; through measurements of blood flow, hypoxia, metabolism, cell death, and other phenotypic features; and through mapping the spatial distribution of biochemical pathways and cell signaling networks using PET, MRI, and other emerging molecular imaging techniques. These methods can establish whether one tumor is more or less heterogeneous than another and can identify subregions with differing biology. In this article, we review the image analysis methods currently used to quantify spatial heterogeneity within tumors. We discuss how analysis of intratumor heterogeneity can provide benefit over more simple biomarkers such as tumor size and average function. We consider how imaging methods can be integrated with genomic and pathology data, instead of being developed in isolation. Finally, we identify the challenges that must be overcome before measurements of intratumoral heterogeneity can be used routinely to guide patient care. Clin Cancer Res; 21(2); 249–57. ©2014 AACR.

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  • In the past 10 years, radiomics and radiogenomics research in tomographic imaging has increased dramatically.

    “In the past 10 years, radiomics and radiogenomics research in tomographic imaging (CT, MR imaging, and PET) has increased dramatically.”

    From Radiomics: Images Are More than Pictures, They Are Data (2016) · cites this paper as [43]

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  1. [67]Zhang W Kreisl TN Solomon J Reynolds RC Glen DR Cox RW Acute effects of bevacizumab on glioblastoma vascularity assessed with DCE-MRI and relation to patient survival Proceedings ISMRM 2009 17 282

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Authors
O'Connor, J. P. B., Rose, C. J., Waterton, J. C., Carano, R. A. D., Parker, G. J. M., & Jackson, A.
Affiliations
  • 1CRUK-EPSRC Cancer Imaging Centre in Cambridge and Manchester, University of Manchester, Manchester, United Kingdom.
  • Engineering and Physical Sciences Research Council (GB)
  • AstraZeneca (United Kingdom) (GB)
  • Genentech (US)
Venue
Clinical Cancer Research
Published
2015-01-14
Volume
21
Issue
2
Pages
249-257
ISSN
  • 1078-0432 (ISSN-L)
  • 1557-3265
OpenAlex
W2142266080
Cited by
677
References
88
Citations by year
2026: 57 · 2025: 65 · 2024: 58 · 2023: 52 · 2022: 54 · 2021: 74 · 2020: 70 · 2019: 65 · 2018: 60 · 2017: 62 · 2016: 39 · 2015: 19
FWCI
6.22
Type
journal article
Language
en
Open access
Locations
  • Clinical Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
Cancer Research UK (16465, 18097, A18097, A15267)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › MRI in cancer diagnosis
Keywords
intratumoral heterogeneity, tumor heterogeneity, treatment response, treatment resistance, tumor hypoxia, cancer metabolism, tumor perfusion, cell death, positron emission tomography, CT attenuation, molecular imaging, tumor subregions, prognostic factors
MeSH terms
Animals, Diagnostic Imaging, Humans, Image Interpretation, Computer-Assisted, Neoplasms, Genetic Heterogeneity

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