Evidence map›Paper›PMID 31496819›Full record

ArticleCancer management and research2019

Intensity-modulated carbon-ion radiation therapy versus intensity-modulated photon-based radiation therapy in locally recurrent nasopharyngeal carcinoma: a dosimetric comparison.

Lei Wang, Jiyi Hu, Xiaoli Liu, Weiwei Wang, Lin Kong, Jiade J Lu

Open access · goldAbstract read
In one paragraph

Article in Cancer management and research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% 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, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Precision radiotherapy for nasopharyngeal carcinoma.Precision radiation oncology · 2024
    Review
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  8. Review
  9. Review
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  14. Nasopharyngeal carcinoma - Improving cure with technology and clinical trials.World journal of otorhinolaryngology - head and neck surgery · 2020
    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

6 authors at 2 institutions in 1 country.

Lei WangDepartment of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201315, People's Republic of China.
Jiyi HuShanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, People's Republic of China.
Xiaoli LiuShanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, People's Republic of China.
Weiwei WangShanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, People's Republic of China.
Lin KongDepartment of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201315, People's Republic of China.
Jiade J LuShanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai, People's Republic of China.
Center for High Pressure Science & Technology Advanced Research · CNFudan University Shanghai Cancer Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo identify the specific dose advantage of intensity-modulated carbon-ion radiation therapy (IMCT) over photon-based intensity-modulated radiation therapy (IMRT) in the treatment of locally recurrent nasopharyngeal carcinoma (NPC). MATERIALS AND

methodsTen patients with locally recurrent NPC underwent IMCT and IMRT planning. Target definition followed the recommendations of the International Commission on Radiation Units and Measurements (ICRU) reports no. 50, 62 and 83. The real treatment plans which were delivered to patients were designed on the Siemens Syngo planning system while the control plans for dosimetric comparison were generated from the Varian Medical Systems. The optimization constraints of the two designs were basically the same. Target coverage was evaluated using the following parameters: Dmin, Dmax, D1, D2, D50, D95, D98 and D99. Target dose distribution and conformality were evaluated using the homogeneity index and conformity index. Normal tissue sparing of organs at risk (OARs) were evaluated using Dmean, D1 and Dmax. SPSS 22.0 software was used for data analysis.

resultsBoth IMCT and IMRT plans met clinical prescription dose requirements. Target coverage of D1, D2, D50, D95, D98, D99 were not significantly different between the two plans (

conclusionAs compared with photon-based IMRT, IMCT significantly reduces radiation dose to the OARs in the treatment of locally recurrent NPC while maintaining the dose coverage to the target volumes. Such a feature is particularly important for patients who experienced previous high-dose irradiation.

Indexed as

carbon iondosimetry comparisonlocally recurrent nasopharyngeal carcinoma

Identifiers

PMID31496819
PMCPMC6701671
OpenAlexW2968210883

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.