Skip to main content

Table 1 Area under the curve ratio between probe-derived, image-derived and manually sampled input functions

From: Use of a beta microprobe system to measure arterial input function in PET via an arteriovenous shunt in rats

 

Subject

   
 

1

2

3

4

5

6

7

8

   
 

AUC

AUC

AUC

AUC

AUC

AUC

AUC

AUC

Mean

SD

COV

Unfitted IF

           

Probe IF

21,173

27,576

19,765

19,024

23,710

17,389

33,630

19,448

   

Manual IF

20,246

26,385

18,418

17,265

22,878

15,270

30,684

19,538

   

Image-derived IF

13,283

27,099

9,486

19,543

14,565

14,563

16,506

12,149

   

Probe/manual

1.046

1.045

1.073

1.102

1.036

1.139

1.096

0.995

1.067

0.045

0.042

Pet/manual

0.656

1.027

0.515

1.132

0.637

0.954

0.538

0.622

0.760

0.240

0.315

Probe/PET

1.594

1.018

2.084

0.973

1.628

1.194

2.037

1.601

1.516

0.425

0.281

Fitted IF

           

Probe IF

21,720

27,762

19,866

18,595

23,573

17,347

33,434

19,344

   

Manual IF

20,981

26,414

18,500

17,602

23,402

15,226

30,297

19,693

   

Image-derived IF

13,533

26,243

9,094.8

19,158

14,793

11,393

16,937

12,574

   

Probe/manual

1.035

1.051

1.074

1.056

1.007

1.139

1.104

0.982

1.056

0.050

0.048

Pet/manual

0.645

0.994

0.492

1.088

0.632

0.748

0.559

0.639

0.725

0.210

0.290

Probe/PET

1.605

1.058

2.184

0.971

1.594

1.523

1.974

1.538

1.556

0.408

0.262

  1. AUC, area under curve; COV, coefficient of variation; IF, input function; SD, standard deviation.