Evidence map›Paper›PMID 32822249›Full record

ArticleThe British journal of radiology2020

Patient-based low dose cone beam CT acquisition settings for prostate image-guided radiotherapy treatments on a Varian TrueBeam linear accelerator.

Maria Antonietta Piliero, Margherita Casiraghi, Davide Giovanni Bosetti, Simona Cima, Letizia Deantonio, Stefano Leva, Francesco Martucci, Marino Tettamanti, Francesco Pupillo, Luca Bellesi and 2 more

Open access · greenAbstract read
In one paragraph

Article in The British journal of radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 42% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Review
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

12 authors at 3 institutions in 1 country.

Maria Antonietta PilieroMedical Physics Division, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland.
Margherita CasiraghiMedical Physics Division, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland.
Davide Giovanni BosettiRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Simona CimaRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Letizia DeantonioRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Stefano LevaRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Francesco MartucciRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Marino TettamantiRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Francesco PupilloMedical Physics Division, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland.
Luca BellesiMedical Physics Division, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland.
Antonella RichettiRadiation Oncology Clinic, Oncology Institute of Southern Switzerland, 6500 Bellinzona, Switzerland.
Stefano PresillaMedical Physics Division, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland.
Institute of Oncology Research · CHEnte Ospedaliero Cantonale · CHIstituto Imaging della Svizzera Italiana

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the performance of low dose cone beam CT (CBCT) acquisition protocols for image-guided radiotherapy of prostate cancer.

methodsCBCT images of patients undergoing prostate cancer radiotherapy were acquired with the settings currently used in our department and two low dose settings at 50% and 63% lower exposure. Four experienced radiation oncologists and two radiation therapy technologists graded the images on five image quality characteristics. The scores were analysed through Visual Grading Regression, using the acquisition settings and the patient size as covariates.

resultsThe low dose acquisition settings have no impact on the image quality for patients with body profile length at hip level below 100 cm.

conclusionsA reduction of about 60% of the dose is feasible for patients with size below 100 cm. The visibility of low contrast features can be compromised if using the low dose acquisition settings for patients with hip size above 100 cm. ADVANCES IN KNOWLEDGE: Low dose CBCT acquisition protocols for the pelvis, based on subjective evaluation of patient images.

Indexed as

Particle AcceleratorsCone-Beam Computed TomographyFeasibility StudiesHumansMalePelvisProstatic NeoplasmsRadiation DosageRadiotherapy, Image-GuidedRadiotherapy, Intensity-ModulatedRegression Analysis

Identifiers

PMID32822249
PMCPMC8519649
OpenAlexW3081500286

What OpenQuestion holds

Textmetadata
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.