Table 1_The impact of positioning errors on the dose distribution of hypofractionated radi

A 2026 study by Pan Wang analyzes the effect of setup errors on radiotherapy dose distribution for 30 patients with left-sided breast cancer. The dataset likely contains simulated dose deviations for clinical target volumes and organs at risk under 3, 5, 7, and 9 mm positioning errors in six directions. It is published on figshare under a CC-BY-4.0 license.

Use Cases

• Modeling dose sensitivity of target volumes (CTV_sc, CTV_cw) to positioning errors based on simulated isocenter shifts.
• Evaluating dose increases to organs at risk (esophagus, thyroid, LAD, heart, ipsilateral lung) under different error magnitudes.
• Determining optimal setup error tolerances for clinical target volumes and organs at risk based on quantified dose deviations.
• Comparing the directional sensitivity (e.g., superior, anterior, right, posterior) of different anatomical structures to positioning uncertainties.

Strengths

• Includes specific dose deviation measurements (e.g., D95% decreases up to 11.26 Gy) for multiple error scenarios.
• Analyzes data for 30 patients undergoing a standardized treatment regimen (43.5Gy in 15 fractions).
• Examines a comprehensive set of organs at risk (esophagus, thyroid, LAD, heart, ipsilateral lung).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small (34.5 KB), indicating limited scope or summary-level data.

Provenance

Source

figshare

Collection Method

Simulation of positioning uncertainties on patient radiotherapy plans.

Freshness

Last updated 2026-04-24 04:21:54; freshness should be verified.