Supplementary file 1_Comparative analysis of radiation therapy plans before and after biod

Twenty-five patients with clinically localized prostate cancer were included in a study assessing the impact of a biodegradable hydrogel spacer on rectal radiation dose during carbon ion radiotherapy. The supplementary file likely contains comparative dosimetry data, including dose–volume histograms and ProKnow scores, generated using the RayStation treatment planning system. This dataset, authored by Hyun Jin Kim and last updated in April 2026, supports the conclusion that the spacer reduces rectal exposure and improves plan robustness.

Use Cases

• Compare rectal dose reduction metrics based on the reported dose–volume histogram (DVH) data.
• Evaluate treatment plan quality using the ProKnow scoring system mentioned in the study results.
• Assess plan robustness against patient setup uncertainties as described in the methods section.
• Analyze the potential for dose escalation to the target volume based on the reported reduction in rectal radiation exposure.

Strengths

• Data is derived from a study of 25 patients, providing a specific clinical cohort size.
• Includes comparative analysis of three distinct plan types: conventional, rectum-protection, and post-SpaceOAR insertion.
• Results are supported by statistical significance (p < 0.001) for dose reduction and plan quality improvement.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is a 523.5 KB PDF file, which may require extraction or manual inspection to access structured data.

Provenance

Source

figshare

Collection Method

Treatment plans were generated using the RayStation treatment planning system and compared across different planning scenarios.

Time Range

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Freshness

Last updated 2026-04-20 04:13:14; freshness should be verified.

Geography

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