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Table 3 The consistencies of regional brain SUVs among the three pairs of segmentation strategies at the whole-brain and cerebral cortex level

From: Impact of brain segmentation methods on regional metabolism quantification in 18F-FDG PET/MR analysis

The consistencies among different methods

With or without MRI registration

With atlas- or individual-based algorithms

With or without AI

With atlas-based algorithms

With individual-based algorithms

All

With MRI registration

Without MRI registration

All

Whole-brain level

ICC

0.984

0.951

0.985

0.963

0.936

0.970

0.998

LB

0.962

0.884

0.964

0.913

0.851

0.928

0.995

UB

0.994

0.980

0.994

0.985

0.973

0.987

0.999

Cerebral cortex level

ICC

0.974

0.924

0.975

0.741

0.879

0.819

0.997

LB

0.954

0.869

0.956

0.582

0.795

0.699

0.995

UB

0.985

0.957

0.986

0.846

0.930

0.894

0.998

  1. ICC intraclass correlation coefficients, UB and LB the upper bound and lower bound of 95% confidential interval