Evidence map›Paper›PMID 35146215›Full record

ArticleAdvances in radiation oncology

Dose-Escalated Magnetic Resonance Image-Guided Abdominopelvic Reirradiation With Continuous Intrafraction Visualization, Soft Tissue Tracking, and Automatic Beam Gating.

Michael D Chuong, John M Bryant, Roberto Herrera, James McCulloch, Jessika Contreras, Rupesh Kotecha, Tino Romaguera, Diane Alvarez, Matthew D Hall, Muni Rubens and 5 more

Open access · goldAbstract read
In one paragraph

Article in Advances in radiation oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 21 citations in OpenAlex.

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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

15 authors at 1 institution in 1 country.

Michael D ChuongDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
John M BryantDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Roberto HerreraDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
James McCullochDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Jessika ContrerasDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Rupesh KotechaDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Tino RomagueraDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Diane AlvarezDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Matthew D HallDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Muni RubensOffice of Clinical Research, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Minesh P MehtaDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Adeel KaiserDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Martin TomDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Alonso N GutierrezDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Kathryn E MittauerDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida.
Baptist Hospital of Miami · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCompared with computed tomography, magnetic resonance (MR) image guidance offers significant advantages for radiation therapy (RT) that may be particularly beneficial for reirradiation (reRT). However, clinical outcomes of MR-guided reRT are not well described in the published literature. METHODS AND MATERIALS: We performed a single-institution retrospective safety and efficacy analysis of reRT patients treated on the MRIdian Linac to targets within the abdomen or pelvis using continuous intrafraction MR-based motion management with automatic beam triggering. Fiducial markers were not used.

resultsWe evaluated 11 patients who received prior RT to a median of 50 Gy (range, 30-58.8 Gy) in 25 fractions (range, 5-28 fractions). The median interval to reRT was 26.8 months. The most frequently retreated sites were nodal metastases (36.4%) and pancreatic cancer (27.3%). The median reRT dose was 40 Gy (range, 25-54 Gy) in 6 fractions (range, 5-36 fractions); ultrahypofractionation (63.6%) was more common than hyperfractionation (36.4%). Daily on-table adaptive replanning was used for 3 patients (27.3%). With a median of 14 months' follow-up from reRT completion (range, 6-32 months), the median and 1-year freedom from local progression were 29 months and 88.9%, respectively, and the median and 1-year overall survival were 17.5 months and 70.0%, respectively. One patient (9.1%) experienced acute grade 2 toxic effects; there were no acute or late treatment-related toxic effects of grade 3 or greater.

conclusionsMagnetic resonance-guided reRT appeared to be feasible and may facilitate safe dose escalation. Additional follow-up is needed to better assess long-term efficacy and late toxic effects. Prospective evaluation of this novel treatment strategy is warranted.

Identifiers

PMID35146215
PMCPMC8802055
OpenAlexW3208653186

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.