Evidence map›Paper›PMID 31237090›Full record

ArticleJournal of applied clinical medical physics2019

Physical and biological impacts of collimator-scattered protons in spot-scanning proton therapy.

Koki Ueno, Taeko Matsuura, Shusuke Hirayama, Seishin Takao, Hideaki Ueda, Yuto Matsuo, Takaaki Yoshimura, Kikuo Umegaki

Open access · goldAbstract read
In one paragraph

Article in Journal of applied clinical medical physics, 2019. 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
0.7field-weighted citation impact, top 26% 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, 11 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
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 at 3 institutions in 1 country.

Koki UenoGraduate School of Biomedical Science and Engineering, Hokkaido University, Sapporo, Hokkaido, Japan.
Taeko MatsuuraFaculty of Engineering, Hokkaido University, Sapporo, Hokkaido, Japan.
Shusuke HirayamaGraduate School of Biomedical Science and Engineering, Hokkaido University, Sapporo, Hokkaido, Japan.
Seishin TakaoProton Beam Therapy Center, Hokkaido University Hospital, Sapporo, Hokkaido, Japan.
Hideaki UedaFaculty of Engineering, Hokkaido University, Sapporo, Hokkaido, Japan.
Yuto MatsuoProton Beam Therapy Center, Hokkaido University Hospital, Sapporo, Hokkaido, Japan.
Takaaki YoshimuraProton Beam Therapy Center, Hokkaido University Hospital, Sapporo, Hokkaido, Japan.
Kikuo UmegakiFaculty of Engineering, Hokkaido University, Sapporo, Hokkaido, Japan.
Hokkaido University Hospital · JPHokkaido University · JPSapporo Medical University · JP

Funding

JSPS KAKENHI 18K07621Ministry of Education, Culture, Sports, Science and Technology
6 · The paper itself

Abstract

To improve the penumbra of low-energy beams used in spot-scanning proton therapy, various collimation systems have been proposed and used in clinics. In this paper, focused on patient-specific brass collimators, the collimator-scattered protons' physical and biological effects were investigated. The Geant4 Monte Carlo code was used to model the collimators mounted on the scanning nozzle of the Hokkaido University Hospital. A systematic survey was performed in water phantom with various-sized rectangular targets; range (5-20 cm), spread-out Bragg peak (SOBP) (5-10 cm), and field size (2 × 2-16 × 16 cm

Indexed as

AlgorithmsChildComputer SimulationDose-Response Relationship, RadiationHumansMelanomaMonte Carlo MethodOrgans at RiskProton TherapyRadiotherapy Planning, Computer-AssistedRelative Biological EffectivenessRhabdomyosarcomaScattering, RadiationUveal MelanomaUveal Neoplasmscollimator scatteringlinear energy transferpencil beam scanning proton therapyrelative biological effectiveness

Identifiers

PMID31237090
PMCPMC6612695
OpenAlexW2953636235

What OpenQuestion holds

Textmetadata
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.