Voxel Volume Calculator
Actual rectangular voxel volume mm³, thickness not slice gap/no in plane resolution or biological spatial accuracy guarantee.
Description
Rectangular voxel volume combines readout size, phase size and actual slice thickness.
Rectangular voxel volume combines readout size, phase size and actual slice thickness.1
This tool calculates cubic millimeters without substituting slice gap or claiming effective biological resolution.
When to use Voxel Volume Calculator
This tool calculates cubic millimeters without substituting slice gap or claiming effective biological resolution.
How to use Voxel Volume Calculator and how it works
- Prepare readout pixel mm, phase pixel mm, slice thickness mm, using the input definitions and matching units below.
- Enter the required fields and run Voxel Volume Calculator.
- Read result.value using the units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualReadoutPixelMm | Actual Readout Pixel Mm. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualPhasePixelMm | Actual Phase Pixel Mm. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualSliceThicknessMm | Actual Slice Thickness Mm. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
Require positive acquired readout pixel size, phase pixel size and actual slice thickness, each in mm. Multiply all three for rectangular voxel volume in mm^3. No slice gap, interpolation matrix or effective resolution is substituted.
voxelVolumeMm3=readoutMm*phaseMm*sliceThicknessMm Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Physical volume in cubic millimeters. | number |
{
"input": {
"actualReadoutPixelMm": 2,
"actualPhasePixelMm": 3,
"actualSliceThicknessMm": 4
},
"output": {
"result": {
"value": 24
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Isotropic Voxel Size Calculator for a complementary operation: An equivalent isotropic side length is the cube root of a voxel volume.
Use Readout Pixel Size Calculator for a complementary operation: Acquired readout pixel size is encoded field of view divided by the acquired readout matrix count.
References
-
Voxel Volume Calculator — tool.io
Similar or alternative tools
- Isotropic Voxel Size Calculator
An equivalent isotropic side length is the cube root of a voxel volume.
- Readout Pixel Size Calculator
Acquired readout pixel size is encoded field of view divided by the acquired readout matrix count.