Evidence map›Paper›PMID 42669111›Full record

ArticleJapanese journal of radiology2026

IMRT planning quality under a single full-time radiation oncologist supported by structured remote peer review and planning assistance versus the two-oncologist standard: the REMOTE-IMRT prospective, pair-matched, multi-institutional trial.

Masahide Saito, Keiichi Jingu, Naoki Tohyama, Hikaru Nemoto, Takayuki Kanai, Masahiko Kurooka, Seiichi Ota, Rei Umezawa, Yoshiyuki Katsuta, Kazuya Takeda and 5 more

Abstract read
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Article in Japanese journal of radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

15 authors.

Masahide SaitoDepartment of Therapeutic Radiology, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan. masahides@yamanashi.ac.jp.ORCID http://orcid.org/0000-0002-8636-4045
Keiichi JinguDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
Naoki TohyamaDepartment of Radiological Sciences, Komazawa University, 1-23-1 Komazawa, Setagaya-ku, Tokyo, 154-8525, Japan.
Hikaru NemotoDepartment of Therapeutic Radiology, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
Takayuki KanaiDepartment of Radiation Oncology, Tokyo Women's Medical University, 8-1, Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
Masahiko KurookaDepartment of Radiation Therapy, Tokyo Medical University Hospital, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
Seiichi OtaDivision of Radiological Technology, Department of Medical Technology, University Hospital, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan.
Rei UmezawaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
Yoshiyuki KatsutaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
Kazuya TakedaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
Masaki MatsudaDepartment of Therapeutic Radiology, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
Tetsuro TamamotoDepartment of Medical Informatics, Nara Medical University Hospital, 840 Shijyo-cho, Kashihara, Nara, 634-8521, Japan.
Ryoji ShinoharaCenter for Birth Cohort Studies, University of Yamanashi, 1110 Shimokato, Yamanashi, 409-3898, Chuo, Japan.
Akihisa WakitaDivision of Medical Physics, EuroMediTech Co., Ltd, 2-20-4 Higashi-Gotanda, Shinagawa, Tokyo, 141-0022, Japan.
Hiroshi OnishiDepartment of Therapeutic Radiology, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.

Funding

Japan Society for the Promotion of Science 25K10982Ministry of Health, Labour and Welfare 23EA1012
6 · The paper itself

Abstract

purposeTo determine whether intensity-modulated radiation therapy (IMRT) plan quality under a proposed facility standard of one full-time radiation oncologist supported by structured remote or part-time peer review and mandatory planning assistance is comparable to Japan's current standard requiring two full-time radiation oncologists. MATERIALS AND

methodsIn this multicenter, pair-matched, prospective trial, 41 institutional pairs were enrolled and 36 completed per protocol. Within each pair, one institution had two full-time radiation oncologists (Group A) and the other had one full-time radiation oncologist (Group B), with mandated remote or part-time peer review and planning-assistant involvement at the single-oncologist site. Common cases (prostate cancer; nasopharyngeal carcinoma [NPC] with whole-neck [WNI] or local boost [LBI] irradiation) and consensus reference contours were provided. Primary endpoints were target delineation accuracy versus the reference contour (dice similarity coefficient, DSC) and plan quality (plan quality metric, PQM; 0-100).

resultsDifferences in DSC (Group B - A) were 0.00 (95% CI - 0.02 to 0.02) for prostate cancer, - 0.02 (- 0.06 to 0.02) for NPC-WNI, and - 0.04 (- 0.09 to 0.02) for NPC-LBI. PQM differences were 2.01 (- 2.05 to 6.07), - 3.51 (- 8.65 to 1.62), and - 2.52 (- 6.52 to 1.49), respectively. All differences fell within the pre-specified comparability margins, with no significant between-group differences.

conclusionUnder these benchmark study conditions, target delineation accuracy and plan quality under a single full-time radiation oncologist supported by structured remote/part-time peer review and mandatory planning assistance were comparable to Japan's two-oncologist standard, supporting the feasibility of this structured model for widening IMRT access.

Indexed as

CancerIMRTMedical staffRadiotherapyRemote treatment planning

Identifiers

PMID42669111

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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.