Evidence map›Paper›PMID 33340388›Full record

ArticleJournal of applied clinical medical physics2021

Prostate SBRT using O-Ring Halcyon Linac - Plan quality, delivery efficiency, and accuracy.

Damodar Pokhrel, Tanner Tackett, Joseph Stephen, Justin Visak, Falguni Amin-Zimmerman, Andrew McGregor, Stephen E Strup, William St Clair

Abstract read
In one paragraph

Article in Journal of applied clinical medical physics, 2021. 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
–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

17 citing papers in PubMed.

  1. Trial
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  4. Linear accelerator selection: impact on feasibility dose-volume histograms and practicality in dose reduction for organs at risk during prostate volumetric-modulated arc therapy.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2025
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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

8 authors.

Damodar PokhrelMedical Physics Graduate Program, Department of Radiation Medicine, University of Kentucky, Lexington, KY, USA.ORCID https://orcid.org/0000-0003-2694-1047
Tanner TackettMedical Physics Graduate Program, Department of Radiation Medicine, University of Kentucky, Lexington, KY, USA.
Joseph StephenMedical Physics Graduate Program, Department of Radiation Medicine, University of Kentucky, Lexington, KY, USA.
Justin VisakMedical Physics Graduate Program, Department of Radiation Medicine, University of Kentucky, Lexington, KY, USA.
Falguni Amin-ZimmermanLexington Clinic, University of Kentucky, Lexington, KY, USA.
Andrew McGregorLexington Clinic, University of Kentucky, Lexington, KY, USA.
Stephen E StrupDepartment of Urology, University of Kentucky, Lexington, KY, USA.
William St ClairMedical Physics Graduate Program, Department of Radiation Medicine, University of Kentucky, Lexington, KY, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cone beam CT-guided prostate stereotactic body radiotherapy (SBRT) treatment on the recently installed novel O-ring coplanar geometry Halcyon Linac with a single energy 6MV-flattening filter free (FFF) beam and volumetric modulated arc therapy (VMAT) is a fast, safe, and feasible treatment modality for early stage low- and intermediate-risk prostate cancer patients. Following the RTOG-0938 compliance criteria and utilizing two-full arc geometry, VMAT prostate SBRT plans were generated for ten consecutive patients using advanced Acuros-based algorithm for heterogeneity corrections with Halcyon couch insert. Halcyon VMAT plans with the stacked and staggered multileaf collimators (MLC) produced highly conformal SBRT dose distributions to the prostate, lower intermediate dose spillage and similar dose to adjacent organs-at-risks (OARs) compared to SBRT-dedicated Truebeam VMAT plans. Due to lower monitor units per fraction and less MLC modulation through the target, the Halcyon VMAT plan can deliver prostate SBRT fractions in and overall treatment time of less than 10 minutes (for 36.25 Gy in five fractions), significantly improving patient compliance and clinic workflow. Pretreatment quality assurance results were similar to Truebeam VMAT plans. We have implemented Halcyon Linac for prostate SBRT treatment in our institution. We recommend that others use Halcyon for prostate SBRT treatments to expand the access of curative hypofractionated treatments to other clinics only equipped with a Halcyon Linac. Clinical follow-up results for patients who underwent prostate SBRT treatment on our Halcyon Linac is underway.

Indexed as

RadiosurgeryRadiotherapy, Intensity-ModulatedHumansMalePhantoms, ImagingProstateRadiotherapy DosageRadiotherapy Planning, Computer-AssistedAcurosXBCo/non-planar GeometryFFF-beamHalcyon LinacProstate SBRTVMAT

Identifiers

PMID33340388
PMCPMC7856496

What OpenQuestion holds

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LicenceCC BY
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.