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Tumour heterogeneity in oesophageal cancer assessed by CT texture analysis: Preliminary evidence of an association with tumour metabolism, stage, and survival
Open accessAbstract
AIM To undertake a pilot study assessing whether tumour heterogeneity evaluated using computed tomography texture analysis (CTTA) has the potential to provide a marker of tumour aggression and prognosis in oesophageal cancer. MATERIALS AND METHODS In 21 patients, unenhanced CT images of the primary oesophageal lesion obtained using positron-emission tomography (PET)-CT examinations underwent CTTA. CTTA was carried out using a software algorithm that selectively filters and extracts textures at different anatomical scales between filter values 1.0 (fine detail) and 2.5 (coarse features) with quantification as entropy and uniformity (measures image heterogeneity). Texture parameters were correlated with average tumour 2-[(18)F]-fluoro-2-deoxy-d-glucose (FDG) uptake [standardized uptake values (SUV(mean) and SUV(max))] and clinical staging as determined by endoscopic ultrasound (nodal involvement) and PET-CT (distant metastases). The relationship between tumour stage, FDG uptake, and texture with survival was assessed using Kaplan-Meier analysis. RESULTS Tumour heterogeneity correlated with SUV(max) and SUV(mean). The closest correlations were found for SUV(mean) measured as uniformity and entropy with coarse filtration (r=-0.754, p<0.0001; and r=0.748, p=0.0001 respectively). Heterogeneity was also significantly greater in patients with clinical stage III or IV for filter values between 1.0 and 2.0 (maximum difference at filter value 1.5: entropy: p=0.027; uniformity p=0.032). The median (range) survival was 21 (4-34) months. Tumour heterogeneity assessed by CTTA (coarse uniformity) was an independent predictor of survival [odds ratio (OR)=4.45 (95% CI: 1.08, 18.37); p=0.039]. CONCLUSION CTTA assessment of tumour heterogeneity has the potential to identify oesophageal cancers with adverse biological features and provide a prognostic indicator of survival.
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HIF-1 and tumor progression: pathophysiology and therapeutics
Semenza, G. L. (2002) · Trends in Molecular Medicine · doi:10.1016/s1471-4914(02)02317-1 · Cited by 1,060
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Assessment of tumor heterogeneity: an emerging imaging tool for clinical practice?
Davnall, F., Yip, C. S. P., Ljungqvist, G., Selmi, M., Ng, F., Sanghera, B., Ganeshan, B., Miles, K. A., Cook, G. J., & Goh, V. (2012) · Insights into Imaging · doi:10.1007/s13244-012-0196-6 · Cited by 878
Self-citationCT Texture Analysis: Definitions, Applications, Biologic Correlates, and Challenges
Lubner, M. G., Smith, A. D., Sandrasegaran, K., Sahani, D. V., & Pickhardt, P. J. (2017) · RadioGraphics · doi:10.1148/rg.2017170056 · Cited by 773
Ng, F., Ganeshan, B., Kozarski, R., Miles, K. A., & Goh, V. (2013) · Radiology · doi:10.1148/radiol.12120254 · Cited by 432
Self-citationPermuth, J. B., Collaborative, T. F. P., Choi, J., Balarunathan, Y., Kim, J., Chen, D.-T., Chen, L., Orcutt, S., Doepker, M. P., Gage, K., et al. (2016) · Oncotarget · doi:10.18632/oncotarget.11768 · Cited by 127
Metadata
- Authors
- Ganeshan, B., Skogen, K., Pressney, I., Coutroubis, D., & Miles, K.
- Venue
- Clinical Radiology
- Publisher
- Elsevier BV
- Published
- 2012-02
- Volume
- 67
- Issue
- 2
- Pages
- 157-164
- ISSN
- 0009-9260 (ISSN-L)
- OpenAlex
- W1965797467
- Cited by
- 310
- References
- 1
- FWCI
- 8.04
- Type
- journal article
- Language
- en
- Open access
- green
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- Ganeshan, B., Skogen, K., Pressney, I., Coutroubis, D., & Miles, K. (2012). Tumour heterogeneity in oesophageal cancer assessed by CT texture analysis: Preliminary evidence of an association with tumour metabolism, stage, and survival. Clinical Radiology. https://doi.org/10.1016/j.crad.2011.08.012
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