Table 2 Intraclass correlation coefficient values for computed Velocity-Informatics variables using different workflows. This analysis includes CFD simulation results from all 18 cases. 1 to 4 indicate Protocols 1–4. Additionally, Wilcoxon Rank Sum Tests were conducted to compute the p-value between computed variables following Protocol 2 and Protocol 3. RLN RunLengthNonuniformity, GLN GrayLevelNonUniformity, LRHGLE LongRunHighGrayLevelEmphasis, LAHGLE LargeAreaHighGrayLevelEmphasis, STD standard deviation.

From: Developing a nearly automated open-source pipeline for conducting computational fluid dynamics simulations in anterior brain vasculature: a feasibility study

 

Mvelocity-informatics

Dvelocity-informatics

 

ICC

(1 vs 2)

ICC

(2 vs 3)

ICC

(2 vs 4)

p-value

(2 vs 3)

ICC

(1 vs 2)

ICC

(2 vs 3)

ICC

(2 vs 4)

p-value

(2 vs 3)

DifferenceAverage

0.945

0.935

0.816

0.457

0.941

0.863

0.917

0.248

DifferenceEntropy

0.893

0.912

0.913

0.420

0.928

0.833

0.902

0.169

DifferenceVariance

0.944

0.923

0.737

0.517

0.907

0.584

0.581

0.275

Idm

0.822

0.904

0.899

0.477

0.930

0.923

0.972

0.304

Idmn

0.979

0.966

0.975

0.740

0.934

0.764

0.759

0.200

Idn

0.969

0.961

0.972

0.624

0.946

0.888

0.940

0.235

Imc1

0.879

0.930

0.856

0.169

0.824

0.689

0.936

0.045

JointEnergy

0.333

0.623

0.707

0.304

0.375

0.432

0.575

0.141

JointEntropy

0.727

0.813

0.835

0.304

0.672

0.584

0.890

0.028

MCC

0.926

0.909

0.947

0.275

0.734

0.634

0.853

0.024

SumEntropy

0.746

0.781

0.673

0.862

0.744

0.594

0.673

0.247

GLN

0.989

0.995

0.987

0.987

0.992

0.994

0.987

0.912

LongRunEmphasis

0.695

0.835

0.816

0.537

0.874

0.866

0.977

0.367

LRHGLE

0.931

0.779

0.744

0.912

0.861

0.705

0.841

0.788

RunEntropy

0.757

0.737

0.585

0.887

0.983

0.979

0.979

0.962

RLN

0.998

0.998

0.995

0.837

0.935

0.911

0.992

0.496

RunPercentage

0.796

0.884

0.865

0.580

0.926

0.941

0.984

0.351

RunVariance

0.635

0.804

0.792

0.517

0.879

0.877

0.964

0.402

ShortRunEmphasis

0.846

0.896

0.872

0.537

0.921

0.915

0.987

0.384

LargeAreaEmphasis

0.466

0.507

0.502

0.558

0.718

0.611

0.928

0.558

LAHGLE

0.732

0.334

0.514

0.351

0.736

0.445

0.749

0.537

SizeZoneNonUniformity

0.960

0.975

0.974

0.580

0.696

0.447

0.850

0.018

SmallAreaEmphasis

0.938

0.930

0.915

0.420

0.810

0.631

0.827

0.091

ZoneEntropy

0.911

0.914

0.884

0.580

0.964

0.952

0.976

0.457

ZonePercentage

0.903

0.932

0.939

0.496

0.969

0.937

0.988

0.304

ZoneVariance

0.467

0.503

0.500

0.558

0.726

0.620

0.928

0.580

Average

0.815

0.834

0.816

0.557

0.843

0.755

0.883

0.351

\(\pm STD\)

\(\pm 0.177\)

\(\pm 0.168\)

\(\pm 0.154\)

\(\pm 0.209\)

\(\pm 0.138\)

\(\pm 0.180\)

\(\pm 0.123\)

\(\pm 0.259\)

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