Evidence map›Paper›PMID 35723860›Full record

Trial reportPhysical and engineering sciences in medicine2022

Performance evaluation of a visual guidance patient-controlled respiratory gating system for respiratory-gated magnetic-resonance image-guided radiation therapy.

Hyung Jin Choun, Jung-In Kim, Chang Heon Choi, Seongmoon Jung, Hyeongmin Jin, Hong-Gyun Wu, Eui Kyu Chie, Jong Min Park

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Physical and engineering sciences in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

8 authors.

Hyung Jin ChounInterdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea.
Jung-In KimDepartment of Radiation Oncology , Seoul National University Hospital, Seoul, Korea.
Chang Heon ChoiDepartment of Radiation Oncology , Seoul National University Hospital, Seoul, Korea.
Seongmoon JungDepartment of Radiation Oncology , Seoul National University Hospital, Seoul, Korea.
Hyeongmin JinDepartment of Radiation Oncology , Seoul National University Hospital, Seoul, Korea.
Hong-Gyun WuDepartment of Radiation Oncology , Seoul National University Hospital, Seoul, Korea.
Eui Kyu ChieDepartment of Radiation Oncology , Seoul National University Hospital, Seoul, Korea.
Jong Min ParkInterdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea. jongminpark@snu.ac.kr.ORCID http://orcid.org/0000-0003-3617-3870

Funding

National Research Foundation of Korea 2019M2A2B4095126National Research Foundation of Korea 2019M2A2B4096540
6 · The paper itself

Abstract

The performance of a visual guidance patient-controlled (VG-PC) respiratory gating system for magnetic-resonance (MR) image-guided radiation therapy (MR-IGRT) was evaluated through a clinical trial of patients with either lung or liver cancer. Patients can voluntarily control their respiration utilizing the VG-PC respiratory gating system. The system enables patients to view near-real-time cine planar MR images projected inside the bore of MR-IGRT systems or an external screen. Twenty patients who had received stereotactic ablative radiotherapy (SABR) for lung or liver cancer were prospectively selected for this study. Before the first treatment, comprehensive instruction on the VG-PC respiratory gating system was provided to the patients. Respiratory-gated MR-IGRT was performed for each patient with it in the first fraction and then without it in the second fraction. For both the fractions, the total treatment time, beam-off time owing to the respiratory gating, and number of beam-off events were analyzed. The average total treatment time, beam-off time, and number of beam-off events with the system were 1507.3 s, 679.5 s, and 185, respectively, and those without the system were 2023.7 s (p < 0.001), 1195.0 s (p < 0.001), and 380 times (p < 0.001), respectively. The VG-PC respiratory gating system improved treatment efficiency through a reduction in the beam-off time, the number of beam-off events, and consequently the total treatment time when performing respiratory-gated MR-IGRT for lung and liver SABR.

Indexed as

Liver NeoplasmsLung NeoplasmsRadiosurgeryRadiotherapy, Image-GuidedHumansMagnetic PhenomenaBreath-holdRespiratory-gated radiotherapyTreatment efficiencyVisual guidance

Identifiers

PMID35723860

What OpenQuestion holds

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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.