Table 2 Summary of the median, first quartile (Q1), and third quartile (Q3) of metastatic and normal ROI kinetic parameters.

From: Assessment of metastatic lymph nodes in head and neck squamous cell carcinomas using simultaneous 18F-FDG-PET and MRI

 

Normal

Metastatic

Median

Q1

Q3

Median

Q1

Q3

ADC (µm2/ms)

0.911

0.717

1.08

0.962

0.839

1.29

vp

7.95 × 10−2

6.08 × 10−2

0.104

5.57 × 10−2*

3.77 × 10−2

6.41 × 10−2

ve

0.385

0.154

0.663

0.673

0.295

0.921

PS (min−1)

4.24 × 10−2

2.65 × 10−2

7.58 × 10−2

2.64 × 10−2*

1.90 × 10−2

3.44 × 10−2

Fp (min−1)

0.142

0.120

0.191

7.35 × 10−2*

5.24 × 10−2

0.156

Ktrans (min−1)

3.79E−02

2.34 × 10−2

6.32 × 10−2

2.42 × 10−2*

1.58 × 10−2

3.08 × 10−2

K1 (mL/cm3/min)

0.816

0.517

1.52

1.20

0.657

2.42

k2 (min−1)

1.32

0.943

2.10

1.50

1.03

2.34

k3 (min−1)

3.02 × 10−3

1.00 × 10−4

6.04 × 10−3

1.82 × 10−2*

1.05 × 10−2

2.34 × 10−2

Ki (mL/cm3/min)

1.81 × 10−3

8.93 × 10−5

3.42 × 10−3

1.23 × 10−2*

7.10 × 10−3

1.82 × 10−2

  1. *A statistical significance where p < 0.05 from Mann–Whitney test.
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