GPR Variation in Prostate Cases: EPID vs. Delta4 Phantom QA Comparison

A 32.9 KB Excel dataset compares two patient-specific quality assurance methods for radiotherapy. The data likely contains gamma passing rate (GPR) values for prostate, nasopharynx, and breast cases from EPID-based and Delta4 Phantom+ systems. Authored by Shinhaeng Cho and last updated in May 2026, it supports findings on the relative stability of EPID-based QA under isocenter displacement.

Use Cases

• Compare sensitivity to isocenter displacement errors based on reported GPR reductions for different QA methods.
• Validate tolerance and action limits for EPID-based QA based on the reported 99.5% and 99.4% thresholds.
• Analyze correlations between EPID-based PFF-PSQA and TC-PSQA results across prostate, nasopharynx, and breast cases.

Strengths

• Dataset is small (32.9 KB), facilitating quick download and inspection.
• License is clearly defined as CC-BY-4.0, permitting broad reuse with attribution.
• Description provides specific performance metrics, including tolerance limits of 99.5% and 99.4%.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Dataset scope is tiny, focusing on a specific comparison of two QA methods.

Provenance

Source

figshare

Collection Method

Likely contains experimental results from a study comparing EPID-based and Delta4 Phantom+ quality assurance methods.

Freshness

Last updated 2026-05-14 17:41:57; freshness should be verified.