Skip to main content

Table 1 List of variables that are used in VOI segmentation and validation

From: Multi-modal image analysis for semi-automatic segmentation of the total liver and liver arterial perfusion territories for radioembolization

Step

Variable

Description

Tumor segmentation

THR (init)

Initial threshold of FDG uptake for tumor core definition

Tumor segmentation

BG (Ti)

Measured background of tumor i

Tumor segmentation

max (Ti)

Measured maximum FDG uptake of tumor i

Tumor segmentation

THR (Ti)

Final threshold for tumor i

Liver evaluation

DICE

Dice coefficient

Liver evaluation

TPR

True positive ratio (sensitivity)

Liver evaluation

PPV

Positive prediciton value

Liver evaluation

RV

Relative volume

Liver/LPT evaluation

aHD

Average Hausdorff distance

Liver/LPT evaluation

mHD

Maximum Hausdorff distance

LPT evaluation

Vdiff

Volume difference

LPT evaluation

Rratio, Lratio

Right and left volume ratio