Cited by 47Medical Imaging Techniques and ApplicationsRadiomics and Machine Learning in Medical ImagingLung Cancer Diagnosis and Treatment

Impact of Different Standardized Uptake Value Measures on PET-Based Quantification of Treatment Response

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Vanderhoek, Matt, Perlman, Scott B., Jeraj, Robert·2013·Journal of Nuclear Medicine

Abstract

UNLABELLED: PET-based treatment response studies typically measure the change in the standardized uptake value (SUV) to quantify response. The relative changes of different SUV measures, such as maximum, peak, mean, or total SUVs (SUV(max), SUV(peak), SUV(mean), or SUV(total), respectively), are used across the literature to classify patients into response categories, with quantitative thresholds separating the different categories. We investigated the impact of different SUV measures on the quantification and classification of PET-based treatment response. METHODS: Sixteen patients with solid malignancies were treated with a multitargeted receptor tyrosine kinase inhibitor, resulting in a variety of responses. Using the cellular proliferation marker 3'-deoxy-3'-(18)F-fluorothymidine ((18)F-FLT), we acquired whole-body PET/CT scans at baseline, during treatment, and after treatment. The highest (18)F-FLT uptake lesions (~2/patient) were segmented on PET images. Tumor PET response was assessed via the relative change in SUV(max), SUV(peak), SUV(mean), and SUV(total), thereby yielding 4 different responses for each tumor at mid- and posttreatment. For each SUV measure, a population average PET response was determined over all tumors. Standard deviation (SD) and range were used to quantify variation of PET response within individual tumors and population averages. RESULTS: Different SUV measures resulted in substantial variation of individual tumor PET response assessments (average SD, 20%; average range, 40%). The most extreme variation between 4 PET response measures was 90% in individual tumors. Classification of tumor PET response depended strongly on the SUV measure, because different SUV measures resulted in conflicting categorizations of PET response (ambiguous treatment response assessment) in more than 80% of tumors. Variation of the population average PET response was considerably smaller (average SD, 7%; average range, 16%), and this variation was not statistically significant. Differences in tumor PET response were greatest between SUV(mean) and SUV(total) and smallest between SUV(max) and SUV(peak). Variations of tumor PET response at midtreatment and posttreatment were similar. CONCLUSION: Quantification and classification of PET-based treatment response in individual patients were strongly affected by the SUV measure used to assess response. This substantial uncertainty in individual patient PET response was present despite the concurrent robustness of the population average PET response. Given the ambiguity of individual patient PET responses, selection of PET-based treatment response measures and their associated thresholds should be carefully optimized.

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  • The choice of SUV parameter can fundamentally change the assessment of disease progression or response to treatment in the majority of cases.

    “Consequently, the choice of SUV parameter can fundamentally change the assessment of disease progression or response to treatment in the majority of cases [193].”

    From Influences on PET Quantification and Interpretation (2022) · cites this paper as [193]

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Authors
Vanderhoek, M., Perlman, S. B., & Jeraj, R.
Affiliations
University of Wisconsin–Madison (US)
Venue
Journal of Nuclear Medicine
Published
2013-06-17
Volume
54
Issue
8
Pages
1188-1194
ISSN
  • 0161-5505 (ISSN-L)
  • 2159-662X
OpenAlex
W2111081063
Cited by
47
References
41
Citations by year
2026: 3 · 2025: 2 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 7 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 3 · 2016: 7 · 2015: 5 · 2014: 6
FWCI
4.66
Type
journal article
Language
en
Open access
Locations
  • Journal of Nuclear Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R01CA136927)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
Keywords
standardized uptake value, 18F-FLT, receptor tyrosine kinase inhibitors, solid tumors, SUVmax, SUVpeak, SUVmean
MeSH terms
Biological Transport, Humans, Neoplasms, Reference Standards, Dideoxynucleosides, Treatment Outcome, Positron-Emission Tomography

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