Table 1 Patient characteristics.

From: Dosimetric comparison of the helical tomotherapy, volumetric-modulated arc therapy and fixed-field intensity-modulated radiotherapy for stage IIB-IIIB non-small cell lung cancer

Characteristic

 

N

%

Sex

Male

29

96.7

Female

1

3.3

Age (years)

Median

62

 

Range

40–79

 

Histology

SCC

17

56.7

AC

9

30.0

NSCC-NOS

4

13.3

Primary tumor location

LUL

8

26.7

LLL

3

10.0

RUL

12

40.0

RML

4

13.3

RLL

3

10.0

Primary tumor size (cm)

Median

3.3

 

Range

1.3–7.8

 

T stage

T1

4

13.3

T2

10

33.3

T3

7

23.3

T4

9

30.0

N stage

N0

1

3.3

N1

6

20.0

N2

12

40.0

N3

11

36.7

Clinical TNM stage (AJCC 7th)

IIB

2

6.7

IIIA

15

50.0

IIIB

13

43.3

Central

11

36.7

Peripheral

19

63.3

PTV volume (cm3)

Median

312.84

 

Range

89.34–650.44

 

Total lung volume (cm3)

Median

3512.30

 

Range

2119.45–4938.96

 
  1. Abbreviation: SCC = squamous cell carcinoma; AC = adenocarcinoma; NSCC-NOS = non-small cell carcinoma-not otherwise specified; LUL = left upper lobe; LLL = left lower lobe; RUL = right upper lobe; RML = right middle lobe; RLL = right lower lobe; PTV = planning tumor volume.
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