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Parametric Response Map As an Imaging Biomarker to Distinguish Progression From Pseudoprogression in High-Grade Glioma

Open access
Tsien, Christina, Galbán, Craig J., Chenevert, Thomas L., Johnson, Timothy D., Hamstra, Daniel A., Sundgren, Pia C., Junck, Larry, Meyer, Charles R., Rehemtulla, Alnawaz, Lawrence, Theodore, Ross, Brian D.·2010·Journal of Clinical Oncology

Abstract

Purpose: To assess whether a new method of quantifying therapy-associated hemodynamic alterations may help to distinguish pseudoprogression from true progression in patients with high-grade glioma. Patients and Methods: Patients with high-grade glioma received concurrent chemoradiotherapy. Relative cerebral blood volume (rCBV) and blood flow (rCBF) maps were acquired before chemoradiotherapy and at week 3 during treatment on a prospective institutional review board–approved study. Pseudoprogression was defined as imaging changes 1 to 3 months after chemoradiotherapy that mimic tumor progression but stabilized or improved without change in treatment or for which resection revealed radiation effects only. Clinical and conventional magnetic resonance (MR) parameters, including average percent change of rCBV and CBF, were evaluated as potential predictors of pseudoprogression. Parametric response map (PRM), an innovative, voxel-by-voxel method of image analysis, was also performed. Results: Median radiation dose was 72 Gy (range, 60 to 78 Gy). Of 27 patients, stable disease/partial response was noted in 13 patients and apparent progression was noted in 14 patients. Adjuvant temozolomide was continued in all patients. Pseudoprogression occurred in six patients. Based on PRM analysis, a significantly reduced blood volume (PRM rCBV ) at week 3 was noted in patients with progressive disease as compared with those with pseudoprogression (P < .01). In contrast, change in average percent rCBV or rCBF, MR tumor volume changes, age, extent of resection, and Radiation Therapy Oncology Group recursive partitioning analysis classification did not distinguish progression from pseudoprogression. Conclusion: PRM rCBV at week 3 during chemoradiotherapy is a potential early imaging biomarker of response that may be helpful in distinguishing pseudoprogression from true progression in patients with high-grade glioma.

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Metadata

Authors
Tsien, C., Galbán, C. J., Chenevert, T. L., Johnson, T. D., Hamstra, D. A., Sundgren, P. C., Junck, L., Meyer, C. R., Rehemtulla, A., Lawrence, T., & Ross, B. D.
Venue
Journal of Clinical Oncology
Published
2010-05-01
Volume
28
Issue
13
Pages
2293-2299
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W2097181552
Cited by
214
References
2
FWCI
8.42
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Parametric Response Map As an Imaging Biomarker to Distinguish Progression From Pseudoprogression in High-Grade Glioma. https://app.cochat.ai/papers/10.1200/jco.2009.25.3971
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Tsien, C., Galbán, C. J., Chenevert, T. L., Johnson, T. D., Hamstra, D. A., Sundgren, P. C., Junck, L., Meyer, C. R., Rehemtulla, A., Lawrence, T., & Ross, B. D. (2010). Parametric Response Map As an Imaging Biomarker to Distinguish Progression From Pseudoprogression in High-Grade Glioma. Journal of Clinical Oncology. https://doi.org/10.1200/jco.2009.25.3971

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