mri-map-ordering-three-row-scan - Biophysical Instrumentation VII: NMR Relaxation and MRI Contrast Step by Step

The displayed B greater than A map order is accepted from checked voxel signals. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Map ordering waits for two cited signal rows

The helper accepts the displayed map only when voxel B has the larger checked signal.

S_B>S_A

Three source pairs keep the displayed B greater than A ordering

Each row rebuilds both voxel signal products before accepting the map ordering.

\begin{array}{c|c|c|c|c}\rho_A&S_A&\rho_B&S_B&\text{map}\\12&5&12&6&\text{B>A}\\16&\frac{20}{3}&16&8&\text{B>A}\\20&\frac{25}{3}&20&10&\text{B>A}\\\end{array}

The final map row compares checked voxel signals

No color or ordering label is free; both cells cite signal checks first.

8>\frac{20}{3}