Description
Explicit caller-requested zero/half-limit research substitution with a retained censor bound; no unmeasured size or clinical category is inferred.
Research lesion records distinguish measured dimensions, geometric size models, censoring conventions, assessment denominators, and follow-up timing. An axis product, percent change, or coverage measure describes only its stated inputs and model. Such arithmetic does not automatically implement a clinical response criterion or validate a study.
Explicit caller-requested zero/half-limit research substitution with a retained censor bound; no unmeasured size or clinical category is inferred.
When to use this tool
Use Tumor Research Censored Size Bound when you need this research measurement, assessment-base, source, or event-time calculation.
How to use the tool and how it works
- Enter resolutionLimit, observedSize, belowLimit, useHalfLimit. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read analysisValue, substituted, upperCensorBound. Inspect substituted before interpreting the associated values.
For nonnegative resolutionLimit and observedSize return observedSize when belowLimit=false; otherwise substitute resolutionLimit/2 if useHalfLimit or zero if not. Return analysisValue, substituted=belowLimit, and upperCensorBound as the limit on the censored branch or observed size otherwise.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| resolutionLimit | Resolution Limit | Required. Finite number; minimum 0. |
| observedSize | Observed Size | Required. Finite number; minimum 0. |
| belowLimit | Below Limit | Required. Boolean. |
| useHalfLimit | Use Half Limit | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| analysisValue | Observed size or explicit zero/half-limit substitution under the supplied flag. | Required. Finite number. |
| substituted | Substituted | Required. Boolean. |
| upperCensorBound | Upper Censor Bound | Required. Finite number. |
{
"input": {
"resolutionLimit": 2,
"observedSize": 0,
"belowLimit": true,
"useHalfLimit": true
},
"output": {
"analysisValue": 1,
"substituted": true,
"upperCensorBound": 2
}
}Limitations and assumptions
- BelowLimit is a supplied flag rather than checked against observedSize. Substitution is an explicit analysis convention, not a measured lesion size, uncertainty model, formal censoring analysis, or clinical conclusion.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use the intended study protocol and a complete measurement or analysis model for a broader conclusion. Verify lesion definitions, censoring, measurement correspondence, time anchors, and missing-assessment policy.
References
Similar or alternative tools
- Research Lesion Dimension Change
Compare supplied research dimensions without clinical response criteria or diagnosis.
- Lesion Measurement Resolution Gap
For nonnegative measured and reference and positive quantum return difference=measured-reference and quantumSteps=difference/quantum.