Evidence map›Paper›PMID 31188018›Full record

ArticleThe British journal of radiology2019

Dosimetric performance of two linear accelerator-based radiosurgery systems to treat single and multiplebrain metastases.

Yoshihiro Ueda, Shingo Ohira, Hideya Yamazaki, Nobuhisa Mabuchi, Naokazu Higashinaka, Masayoshi Miyazaki, Teruki Teshima

Open access · greenAbstract read
In one paragraph

Article in The British journal of radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

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  9. Review
  10. Clinical implementation of HyperArc.Physical and engineering sciences in medicine · 2022
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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

7 authors at 1 institution in 1 country.

Yoshihiro Ueda1 Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan.
Shingo Ohira1 Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan.
Hideya Yamazaki2 Department of Radiation Oncology, Soseikai General Hospital CyberKnife Center, Kyoto, Japan.
Nobuhisa Mabuchi2 Department of Radiation Oncology, Soseikai General Hospital CyberKnife Center, Kyoto, Japan.
Naokazu Higashinaka2 Department of Radiation Oncology, Soseikai General Hospital CyberKnife Center, Kyoto, Japan.
Masayoshi Miyazaki1 Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan.
Teruki Teshima1 Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan.
Osaka Medical Center for Cancer and Cardiovascular Diseases · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate and compare the dosimetric plan quality for noncoplanar volumetric arc therapy of single and multiple brain metastases using the linear accelerator-based radiosurgery system HyperArc and a robotic radiosurgery system.

methods31 tumors from 24 patients were treated by stereotactic radiosurgery using the CyberKnife system. CT images, structure sets, and dose files were transferred to the Eclipse treatment planning system for the HyperArc system. Dosimetric parameters for both plans were compared. The beam-on time was calculated from the total monitor unit and dose rate.

resultsFor normal brain tissue, the received volume doses were significantly lower for HyperArc than for CyberKnife_G4 and strongly correlated with the planning target volume (PTV) for cases of single brain metastasis. In addition, the difference in volume dose between CyberKnife_G4 and HyperArc was proportional to the PTV. For multiple brain metastases, no significant difference was observed between the two stereotactic radiosurgery systems, except for high-dose region in the normal tissue. In low dose for brain minus PTV, when the maximum distance among each target was above 8.0 cm, HyperArc delivered higher dose than CyberKnife_G4. The mean ± SDs for the beam-on time were 15.8 ± 5.3 and 5.6 ± 0.8 min for CyberKnife_G4 and HyperArc, respectively (

conclusionHyperArc is best suited for larger targets in single brain metastasis and for smaller inter tumor tumor distances in multiple brain metastases. ADVANCES IN KNOWLEDGE: The performance of HyperArc in comparison with CyberKnife_G4 was depended on defined margin and tumor distances.

Indexed as

BrainBrain NeoplasmsFemaleHumansMaleRadiometryRadiosurgeryRadiotherapy DosageRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedTreatment Outcome

Identifiers

PMID31188018
PMCPMC6724620
OpenAlexW2953263120

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.