Evidence map›Paper›PMID 38319652›Full record

ArticleJournal of applied clinical medical physics2024

Relationship between hydrogel spacer distribution and dosimetric parameters in linear-accelerator-based stereotactic body radiotherapy for prostate cancer.

Shingo Ohira, Hideomi Yamashita, Masanari Minamitani, Subaru Sawayanagi, Mami Ogita, Toshikazu Imae, Atsuto Katano, Yuki Nozawa, Takeshi Ohta, Kanabu Nawa and 3 more

Abstract read
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In one paragraph

Article in Journal of applied clinical medical physics, 2024. 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
–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

2 citing papers in PubMed.

  1. Review
  2. 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

13 authors.

Shingo OhiraDepartment of Comprehensive Radiation Oncology, The University of Tokyo, Tokyo, Japan.ORCID https://orcid.org/0000-0002-6170-1471
Hideomi YamashitaDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Masanari MinamitaniDepartment of Comprehensive Radiation Oncology, The University of Tokyo, Tokyo, Japan.
Subaru SawayanagiDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Mami OgitaDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Toshikazu ImaeDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.ORCID https://orcid.org/0000-0002-6850-3806
Atsuto KatanoDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Yuki NozawaDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Takeshi OhtaDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Kanabu NawaDepartment of Radiology, The University of Tokyo Hospital, Tokyo, Japan.
Teiji NishioDepartment of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Japan.
Masahiko KoizumiDepartment of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Japan.
Keiichi NakagawaDepartment of Comprehensive Radiation Oncology, The University of Tokyo, Tokyo, Japan.

Funding

JSPS KAKENHI 21K07742
6 · The paper itself

Abstract

purposeTo explore the potential of quantitative parameters of the hydrogel spacer distribution as predictors for separating the rectum from the planning target volume (PTV) in linear-accelerator-based stereotactic body radiotherapy (SBRT) for prostate cancer.

methodsFifty-five patients underwent insertion of a hydrogel spacer and were divided into groups 1 and 2 of the PTV separated from and overlapping with the rectum, respectively. Prescribed doses of 36.25-45 Gy in five fractions were delivered to the PTV. The spacer cover ratio (SCR) and hydrogel-implant quality score (HIQS) were calculated.

resultsDosimetric and quantitative parameters of the hydrogel spacer distribution were compared between the two groups. For PTV, D

conclusionsThe SCR seems promising to predict the separation of the rectum from the PTV in linear-accelerator-based SBRT for prostate cancer.

Indexed as

Organs at RiskProstatic NeoplasmsRadiosurgeryRadiotherapy DosageRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedAgedAged, 80 and overHumansHydrogelsMaleMiddle AgedParticle AcceleratorsPrognosisRadiometryHydrogelsdosehydrogel spacerprostateSBRT

Identifiers

PMID38319652
PMCPMC11163487

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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.