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Updated: Aug 17, 2026
A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing (Neo)adjuvant Therapies
Published on: July 28, 2020
Imaging and response in soft tissue sarcomas
1Division of Hematology/Oncology, Box 0848, University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-0848, USA. scotschu@med.umich.edu
Abstract:
Conventional CT and MRI scans provide exquisite anatomic detail of soft tissue sarcomas but fall short of estimating the degree of tumor viability within a sarcomatous mass. Functional imaging methods that measure biologic properties within sarcomas may be better able to determine true tumor responses to chemotherapy or radiotherapy. Many different approaches to measure biologic processes have been taken and are discussed, but positron emission tomography (PET) is currently the most quantitative and developed. A response in tumor glucose uptake, determined by PET, has been shown to correlate with improved clinical outcomes in high-grade extremity soft tissue sarcomas and gastrointestinal stromal tumors. Functional imaging of soft tissue sarcomas may prove to be useful clinically, therefore further investigation is warranted.
Insights
Functional imaging, like positron emission tomography (PET), offers better insights into soft tissue sarcoma viability and treatment response than standard scans. PET
Area of Science:
- Oncology
- Radiology
- Medical Imaging
Background:
- Conventional CT and MRI scans excel at anatomical detail for soft tissue sarcomas.
- These methods are limited in assessing tumor viability and response to therapy.
- Functional imaging offers a potential solution for evaluating biological properties within sarcomas.
Purpose of the Study:
- To explore the utility of functional imaging in assessing soft tissue sarcoma response to treatment.
- To highlight positron emission tomography (PET) as a quantitative functional imaging modality.
- To discuss the correlation between imaging biomarkers and clinical outcomes.
Main Methods:
- Review of various functional imaging approaches for soft tissue sarcomas.
- Focus on positron emission tomography (PET) for quantitative assessment.
- Analysis of tumor glucose uptake as a key biomarker.
Main Results:
- PET imaging demonstrates quantitative measurement of biological processes in sarcomas.
- Decreased tumor glucose uptake via PET correlates with improved outcomes.
- This has been observed in high-grade extremity soft tissue sarcomas and gastrointestinal stromal tumors.
Conclusions:
- Functional imaging, particularly PET, shows promise for evaluating soft tissue sarcoma treatment response.
- PET's ability to measure tumor viability and glucose metabolism is clinically relevant.
- Further research into functional imaging for sarcomas is warranted to optimize patient care.
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