ArticleScientific reports2026
The impact of collimator angle and increment on volumetric modulated arc therapy after modified radical mastectomy for breast cancer.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
Abstract
To investigate the best combination of parameters by changing the collimator and increment in the volumetric modulated arc therapy after modified radical mastectomy for breast cancer. Ten patients with left breast cancer and ten patients with right breast cancer who underwent modified radical mastectomy were selected in our research cohort. Treatment plans were established utilizing the 3-arc beam configuration spanning 240 degrees. The collimator angle was systematically adjusted in increments of 10 degrees, ranging from - 90 to 90 degrees. Additionally, increment values of 10, 20, 30, and 40 were employed for each corresponding collimator angle. All other planning parameters remained constant across the plans. Finally the impact of different values was analyzed in terms of plan quality and execution efficiency. Regarding the dose distribution within the target and the ipsilateral lung, the optimal collimator angles were observed to range from - 60 to 30 degrees for the left breast and from - 30 to 60 degrees for the right breast. As for the increment value, 10 yielded the optimal outcome, 40 resulted in the least desirable outcome, and 20 and 30 demonstrated a balanced effect between 10 and 40. In terms of execution efficiency and treatment complexity, the impact of the collimator angle on the results exhibits symmetric distribution, and the most favorable collimator angle approaches 0 degrees. Additionally, with a gradual increase in the collimator angle, the execution efficiency diminishes while the complexity correspondingly increases. In the context of treatment planning following modified radical mastectomy for left and right breast cancer, optimal collimator angles fall within the ± 30-degree range, while increment values of 20 and 30 degrees yielded the best overall outcomes, ensuring the attainment of the prescribed dose while accounting for execution efficiency and treatment complexity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.