Use Necrotic Index when you need to compute the percentage of necrotic cells in a counted cell population. Enter Necrotic cells and Total cells using the definitions and units below so the result can be reproduced.

Necrotic cells

An integer count or setting greater than or equal to 0.

Total cells

An integer count or setting greater than or equal to 0.

The published tool contract uses this rule: Compute the percentage of necrotic cells in a counted cell population.

Necrotic index

The calculated necrotic index in %.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small.

Retain the original Necrotic cells and Total cells values and their units alongside the result. Mitotic Index % is useful when you instead need to calculate the mitotic index as the percentage of counted cells in mitosis. Ki67 Proliferation Index provides another view by helping you compute the Ki67 proliferation index as the percentage of Ki67-positive cells.

• Mitotic Index %

  Calculate the mitotic index as the percentage of counted cells in mitosis.

• Ki67 Proliferation Index

  Compute the Ki67 proliferation index as the percentage of Ki67-positive cells.

• Apoptotic Index

  Compute the apoptotic index as the ratio of apoptotic cells to mitotic cells.