Description
Compare supplied image-axis measurements to an explicit projection factor, without response assessment.
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.
Compare supplied image-axis measurements to an explicit projection factor, without response assessment.
When to use this tool
Use Tumor Axis Reference Plane Gap when you need this research measurement, assessment-base, source, or event-time calculation.
How to use the tool and how it works
- Enter measuredAxis, projectedAxis, suppliedProjectionFactor. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read expectedProjection, signedGap. Use the output convention below.
For nonnegative measuredAxis and projectedAxis and suppliedProjectionFactor in [0,1] return expectedProjection=measuredAxis*factor and signedGap=projectedAxis-expectedProjection.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| measuredAxis | Measured Axis | Required. Finite number; minimum 0. |
| projectedAxis | Projected Axis | Required. Finite number; minimum 0. |
| suppliedProjectionFactor | Supplied Projection Factor | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| expectedProjection | Expected Projection | Required. Finite number. |
| signedGap | Signed Gap | Required. Finite number. |
{
"input": {
"measuredAxis": 10,
"projectedAxis": 7,
"suppliedProjectionFactor": 0.8
},
"output": {
"expectedProjection": 8,
"signedGap": -1
}
}Limitations and assumptions
- Lengths need one unit and the factor is supplied rather than derived from orientation. No plane is fitted, lesion is measured, or clinical projection accuracy established.
- 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
- Tumor Volume Research Axis Product Term
Three-axis model-volume comparison with an explicit common shape coefficient, without image segmentation or response criteria.
- Research Lesion Dimension Change
Compare supplied research dimensions without clinical response criteria or diagnosis.