Evidence map›Paper›PMID 36561526›Full record

ArticleFrontiers in oncology2022

Case report: Fractional brain tumor burden magnetic resonance mapping to assess response to pulsed low-dose-rate radiotherapy in newly-diagnosed glioblastoma.

Ryan F Amidon, Fernando Santos-Pinheiro, Michael Straza, Melissa A Prah, Wade M Mueller, Max O Krucoff, Jennifer M Connelly, Christopher J Kleefisch, Dylan J Coss, Elizabeth J Cochran and 3 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Frontiers in oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 30% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
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  3. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Ryan F AmidonSchool of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States.
Fernando Santos-PinheiroDepartment of Neurology, Medical College of Wisconsin, Milwaukee, WI, United States.
Michael StrazaDepartment of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States.
Melissa A PrahDepartment of Biophysics, Medical College of Wisconsin, Milwaukee, WI, United States.
Wade M MuellerDepartment of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, United States.
Max O KrucoffDepartment of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, United States.
Jennifer M ConnellyDepartment of Neurology, Medical College of Wisconsin, Milwaukee, WI, United States.
Christopher J KleefischDepartment of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States.
Dylan J CossDepartment of Pathology, Medical College of Wisconsin, Milwaukee, WI, United States.
Elizabeth J CochranDepartment of Pathology, Medical College of Wisconsin, Milwaukee, WI, United States.
Joseph A BoviDepartment of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States.
Christopher J SchultzDepartment of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States.
Kathleen M SchmaindaDepartment of Biophysics, Medical College of Wisconsin, Milwaukee, WI, United States.
Medical College of Wisconsin · US

Funding

Quantitative (Perfusion and Diffusion) MRI Biomarkers to Measure Glioma ResponseU01CA176110 · NCI · MEDICAL COLLEGE OF WISCONSIN · PI SCHMAINDA, KATHLEEN MARIE · 2014 to 2023
$4.9M
New treatment monitoring biomarkers for brain tumors using multiparametric MRI with machine learningR01CA255123 · NCI · MEDICAL COLLEGE OF WISCONSIN · PI SCHMAINDA, KATHLEEN MARIE · 2021 to 2025
$2.6M
Establishing the clinical utility of a consensus DSC-MRI ProtocolR01CA264992 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Jerrold L Boxerman, Leland Hu · 2022 to 2026
$2.4M
Multi-site Validation and Application of a Consensus DSC MRI ProtocolR01CA221938 · NCI · ST. JOSEPH'S HOSPITAL AND MEDICAL CENTER · PI BOXERMAN, JERROLD L, HU, LELAND · 2018 to 2020
$738k
NCI NIH HHS R01 CA221938NCI NIH HHS R01 CA255123NCI NIH HHS R01 CA264992NCI NIH HHS U01 CA176110
6 · The paper itself

Abstract

Background: Pulsed low-dose-rate radiotherapy (pLDR) is a commonly used reirradiation technique for recurrent glioma, but its upfront use with temozolomide (TMZ) following primary resection of glioblastoma is currently under investigation. Because standard magnetic resonance imaging (MRI) has limitations in differentiating treatment effect from tumor progression in such applications, perfusion-weighted MRI (PWI) can be used to create fractional tumor burden (FTB) maps to spatially distinguish active tumor from treatment-related effect. Methods: We performed PWI prior to re-resection in four patients with glioblastoma who had undergone upfront pLDR concurrent with TMZ who had radiographic suspicion for tumor progression at a median of 3 months (0-5 months or 0-143 days) post-pLDR. The pathologic diagnosis was compared to retrospectively-generated FTB maps. Results: The median patient age was 55.5 years (50-60 years). All were male with IDH-wild type (n=4) and O Conclusion: This case series provides insight into the radiographic response to upfront pLDR and TMZ and the role for FTB mapping to distinguish tumor progression from treatment effect prior to redo-surgery and within 20 weeks post-radiation.

Indexed as

fractional tumor burden (FTB)glioblastomaMRIpseudoprogressionpulsed low-dose-rate radiotherapy (pLDR)relative cerebral blood volume (rCBV)treatment effecttumor progression

Identifiers

PMID36561526
PMCPMC9763264
OpenAlexW4311619474

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.