Skip to main content

Table 2 CT parameters on pre and post RT CT study

From: The prognostic value of location and size change of pathological lymph nodes evaluated on CT-scan following radiotherapy in head and neck cancer

Variable

Statistic

All

a.

Sum-volume

N

183

Mean

18.4

Std

31.21

Median

9.7

IQR

(3.9; 19.9)

Range

(0.3; 257.3)

Largest diameter

N

183

Mean

26.0

Std

14.46

Median

23.0

IQR

(17.0; 32.8)

Range

(2.6; 123.0)

ECS

 No

n/N (%)

146/183 (79.78%)

 Yes

n/N (%)

37/183 (20.22%)

Necrosis

 No

n/N (%)

60/183 (32.79%)

 Yes

n/N (%)

123/183 (67.21%)

Calcifications

 No

n/N (%)

180/183 (98.36%)

 Yes

n/N (%)

3/183 (1.64%)

b.

Sum-volume

N

168

Mean

3.8

Std

8.02

Median

1.3

IQR

(0.7; 3.1)

Range

(0.1; 56.7)

Largest diameter

N

168

Mean

15.2

Std

9.19

Median

12.5

IQR

(9.6; 16.8)

Range

(5.5; 55.8)

ECS

 No

n/N (%)

150/168 (89.29%)

 Yes

n/N (%)

18/168 (10.71%)

Necrosis

 No

n/N (%)

115/168 (68.45%)

 Yes

n/N (%)

53/168 (31.55%)

Calcifications

 No

n/N (%)

147/168 (87.50%)

 Yes

n/N (%)

21/168 (12.50%)