Table 1 Summary of correlation results between flow shear stress (FSS) and plaque progression from 32 scan pairs using both baseline and follow-up scans and corresponding to maximum and minimum flow rates in a cardiac cycle

C1

400

0.015

0.761

0.025

0.619

0.125

0.013

0.130

0.009

C2

400

-0.108

0.032

-0.110

0.027

0.058

0.247

0.057

0.256

C3

900

0.338

< .001

0.337

< .001

0.401

< .001

0.403

< .000

C4

400

-0.450

< .001

-0.460

< .001

-0.144

0.004

-0.173

0.001

C5

800

0.170

< .001

0.181

< .001

0.432

< .000

0.439

< .000

C6

800

-0.379

< .001

-0.384

< .001

0.123

0.001

0.114

0.001

C7

800

0.117

0.001

0.108

0.002

0.125

< .001

0.126

< .001

C8

800

-0.088

0.013

-0.090

0.011

0.183

< .001

0.181

< .001

C9

600

-0.305

< .001

-0.300

< .001

-0.288

< .001

-0.293

< .001

C10

600

0.392

< .001

0.391

< .001

0.348

< .001

0.352

< .001

C11

700

-0.313

< .001

-0.307

< .001

-0.311

< .001

-0.312

< .001

C12

700

0.005

0.887

0.008

0.834

-0.077

0.043

-0.072

0.056

C13

600

-0.117

0.004

-0.110

0.007

-0.027

0.513

-0.013

0.745

C14

1000

0.188

< .001

0.193

< .001

0.337

< .001

0.340

< .001

C15

1000

0.108

< .001

0.102

0.001

0.257

< .001

0.252

< .001

C16

900

0.007

0.845

-0.010

0.760

-0.146

< .001

0.310

< .001

C17

800

0.188

< .001

-0.199

< .001

0.273

< .001

0.288

< .001

C18

800

0.056

0.116

0.054

0.128

0.154

< .001

0.159

< .001

C19

800

-0.032

0.361

-0.025

0.484

0.274

< .001

0.283

< .001

C20

800

-0.587

< .001

-0.588

< .001

-0.468

< .001

-0.463

< .001

C21

900

0.135

< .001

0.134

< .001

0.139

< .001

0.137

< .001

C22

900

-0.036

0.282

-0.053

0.111

0.006

0.858

0.002

0.947

C23

700

-0.051

0.182

-0.041

0.281

0.263

< .001

0.272

< .001

C24

800

0.028

0.436

0.021

0.548

0.082

0.020

0.081

0.022

C25

800

-0.021

0.547

-0.029

0.421

0.193

< .001

0.203

< .001

C26

700

0.054

0.150

0.058

0.128

0.153

< .001

0.162

< .001

C27

700

-0.382

< .001

-0.389

< .001

-0.044

0.246

-0.037

0.329

C28

900

-0.369

< .001

-0.373

< .001

-0.223

< .001

-0.225

< .001

C29

900

0.207

< .001

0.215

< .001

0.207

< .001

0.205

< .001

C30

800

0.332

< .001

0.336

< .001

0.361

< .001

0.364

< .001

C31

800

-0.420

< .001

-0.418

< .001

-0.357

< .001

-0.354

< .001

C32

800

-0.489

< .001

-0.498

< .001

-0.170

< .001

-0.175

< .001

Positive

10

9

19

20

Negative

12

13

9

7

No Signifi.

10

10

4

5

95% CI

(-0.15, 0.037)

(-.163, 0.024)

(-0.015, 0.155)

(0.01, 0.172)