Evidence map›Paper›PMID 33353402›Full record

ArticleThe British journal of radiology2021

Dosimetric effect of the intestinal gas of online adaptive stereotactic body radiotherapy on target and critical organs without online electron density correction for pancreatic cancer.

Chen Su, Hiroyuki Okamoto, Shie Nishioka, Tatsuya Sakasai, Daisuke Fujiyama, Yuki Miura, Yuki Tsunoda, Junichi Kuwahara, Satoshi Nakamura, Kotaro Iijima and 9 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in The British journal of radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

19 authors.

Chen SuDepartment of Oncology, Jinan Central Hospital, Cheeloo College of Medcine, Shandong University, Central Hospital affiliated to Shandong First Medical University, Jinan, China.
Hiroyuki OkamotoDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Shie NishiokaDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Tatsuya SakasaiDepartment of Radiological Technology, National Cancer Center Hospital, Tokyo, Japan.
Daisuke FujiyamaDepartment of Radiological Technology, National Cancer Center Hospital, Tokyo, Japan.
Yuki MiuraDepartment of Radiological Technology, National Cancer Center Hospital, Tokyo, Japan.
Yuki TsunodaDepartment of Radiological Technology, National Cancer Center Hospital, Tokyo, Japan.
Junichi KuwaharaDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Satoshi NakamuraDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Kotaro IijimaDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Takahito ChibaDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Keita KagaDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Mihiro TakemoriDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Hiroki NakayamaDepartment of Medical Physics, National Cancer Center Hospital, Tokyo, Japan.
Shouichi KatsutaDepartment of Radiological Technology, National Cancer Center Hospital, Tokyo, Japan.
Koji InabaDepartment of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan.
Hiroshi IgakiDepartment of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan.
Yuko NakayamaDepartment of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan.
Jun ItamiDepartment of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to assess the dosimetric effect of intestinal gas of stereotactic magnetic resonance (MR)-guided adaptive radiation therapy (SMART) on target and critical organs for pancreatic cancer without online electron density correction (EDC).

methodsThirty pancreatic cancer patients who underwent online SMART were selected for this study. The treatment time of each stage and the total treatment time were recorded and analyzed. The concerned dose-volume parameters of target and organs-at-risk (OAR) were compared with and without an intestinal gas EDC using the Wilcoxon-signed rank test. Analysis items with

resultsThe average treatment time was 82 min, and the average EDC time was 8 min, which accounted for 10% of the overall treatment time. There were no significant differences in CTV (GTV), PTV, bowel, stomach, duodenum, and skin (

conclusionFor patients with similar inter-fractional intestinal gas distribution, EDC had little dosimetric effects on the ADVANCES IN KNOWLEDGE: By omitting the EDC of intestinal gas, the online SMART treatment time can be shortened.

Indexed as

AdultAgedAged, 80 and overElectronsFemaleHumansIntestinesMagnetic Resonance Imaging, InterventionalMaleMiddle AgedOrgans at RiskPancreatic NeoplasmsRadiosurgeryRadiotherapy DosageRadiotherapy, Image-GuidedRadiotherapy Planning, Computer-Assisted

Identifiers

PMID33353402
PMCPMC8011255

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.