Evidence map›Paper›PMID 28453861›Full record

ArticleMedical physics2017

Functional lung avoidance and response-adaptive escalation (FLARE) RT: Multimodality plan dosimetry of a precision radiation oncology strategy.

Eunsin Lee, Jing Zeng, Robert S Miyaoka, Jatinder Saini, Paul E Kinahan, George A Sandison, Tony Wong, Hubert J Vesselle, Ramesh Rengan, Stephen R Bowen

Abstract read
In one paragraph

Article in Medical physics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Primary Results of NRG-RTOG1106/ECOG-ACRIN 6697: A Randomized Phase II Trial of Individualized Adaptive (chemo)Radiotherapy Using MidtreatmentJournal of clinical oncology : official journal of the American Society of Clinical Oncology · 2024
    Trial
  4. Evaluation of variables predicting PFT changes for lung cancer patients treated on a prospective 4DCT-ventilation functional avoidance clinical trial.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2023
    Trial
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  16. HyperpolarizedInternational journal of radiation oncology, biology, physics · 2021
    Article
  17. Article
  18. Characterizing spatial differences between SPECT-ventilation and SPECT-perfusion in patients with lung cancer undergoing radiotherapy.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2021
    Article
  19. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Eunsin LeeDepartment of Radiation Oncology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
Jing ZengDepartment of Radiation Oncology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
Robert S MiyaokaDepartment of Radiology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
Jatinder SainiSeattle Cancer Care Alliance Proton Therapy Center, 1570 N 115th Ave, Seattle, WA, 98133, USA.
Paul E KinahanDepartment of Radiology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
George A SandisonDepartment of Radiation Oncology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
Tony WongSeattle Cancer Care Alliance Proton Therapy Center, 1570 N 115th Ave, Seattle, WA, 98133, USA.
Hubert J VesselleDepartment of Radiology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
Ramesh RenganDepartment of Radiation Oncology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.
Stephen R BowenDepartments of Radiation Oncology and Radiology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA, 98195, USA.

Funding

Personalized radiation therapy through functional lung avoidance and response-adaptive dose escalation: utilizing multimodal molecular imaging to improve the therapeutic ratioR01CA204301 · NCI · UNIVERSITY OF WASHINGTON · PI BOWEN, STEPHEN R., ZENG, JING · 2016 to 2020
$2.3M
NCI NIH HHS R01 CA204301
6 · The paper itself

Abstract

purposeNonsmall cell lung cancer (NSCLC) patient radiation therapy (RT) is planned without consideration of spatial heterogeneity in lung function or tumor response. We assessed the dosimetric and clinical feasibility of functional lung avoidance and response-adaptive escalation (FLARE) RT to reduce dose to [

methodsEight stage IIB-IIIB NSCLC patients underwent FDG-PET/CT and MAA-SPECT/CT treatment planning scans. Perfused lung objectives were derived from scatter/collimator/attenuation-corrected MAA-SPECT uptake relative to ITV-subtracted lung to maintain < 20 Gy mean lung dose (MLD). Prescriptions included 60 Gy to the planning target volume (PTV) and concomitant boost of 74 Gy mean to biological target volumes (BTV = GTV + PET gradient segmentation) scaled to each BTV voxel by relative FDG-PET SUV. Dose-painting-by-numbers prescriptions were integrated into commercial treatment planning systems via uptake threshold discretization. Dose constraints for lung, heart, cord, and esophagus were defined. FLARE RT plans were optimized with volumetric modulated arc therapy (VMAT), proton pencil beam scanning (PBS) with 3%-3 mm robust optimization, and combination of PBS (avoidance) plus VMAT (escalation). The high boost dose region was evaluated within a standardized SUV

resultsNo unacceptable violations of PTV and normal tissue objectives were observed in 24 FLARE RT plans. Compared to reference VMAT plans, FLARE VMAT plans achieved a higher mean dose to BTV (73.7 Gy 98195. 61.3 Gy), higher mean dose to SUV

conclusionsFLARE RT is clinically feasible with VMAT and PBS. A combination of PBS for functional lung avoidance and VMAT for FDG PET dose escalation balanced target and normal tissue objective tradeoffs. These results provide a technical platform for testing of FLARE RT safety and efficacy within a precision radiation oncology trial.

Indexed as

Positron Emission Tomography Computed TomographyRadiotherapy DosageRadiotherapy Planning, Computer-AssistedHumansLung NeoplasmsRadiation OncologyRadiotherapy, Intensity-Modulateddose paintingfunctional lung avoidancePBSPETprecision oncologySPECTVMAT

Identifiers

PMID28453861
PMCPMC5546910

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.