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Table 2 Comparison of the 8 plans (mean ± standard deviation of 9 patients)

From: Combining deep-inspiration breath hold and intensity-modulated radiotherapy for gastric mucosa-associated lymphoid tissue lymphoma: Dosimetric evaluation using comprehensive plan quality indices

 

Variables (mean ± SD)

Plan

TV95 (cc)

D95 (cGy)

HI

CI

Rt. Kidney Dmean (cGy)

Lt. kidney Dmean (cGy)

Spinal cord Dmax (cGy)

Liver Dmean (cGy)

Heart Dmean (cGy)

Lung Dmean (cGy)

Bowel Dmax (cGy)

PQM (%)

MU

All

1546.53 ± 55.12

2919.06 ± 5.72

1.07 ± 0.00

1.19 ± 0.03

665 ± 36

743 ± 56

2194 ± 52

1482 ± 24

559 ± 31

331 ± 10

3118 ± 4

66.2 ± 1.2

2110.13 ± 382.92

3D-DIBH

1810.27 ± 162.59

2881.44 ± 9.95

1.09 ± 0.01

1.55 ± 0.04

741 ± 139

847 ± 219

2545 ± 117

1558 ± 50

446 ± 46

321 ± 22

3103 ± 12

60.6 ± 2.4

178.11 ± 2.03

3D-FB

2257.54 ± 136.08

2890.44 ± 9.56

1.08 ± 0.01

1.54 ± 0.03

845 ± 141

1069 ± 217

2869 ± 64

1715 ± 42

854 ± 84

404 ± 33

3110 ± 7

50.9 ± 2.1

176.13 ± 1.55

sIMRT-DIBH

1230.34 ± 100.57

2914.89 ± 7.36

1.08 ± 0.00

1.06 ± 0.01

602 ± 80

551 ± 105

1787 ± 70

1288 ± 41

363 ± 41

281 ± 16

3146 ± 4

75.6 ± 1.7

355.91 ± 12.74

sIMRT-FB

1525.70 ± 106.21

2906.00 ± 7.17

1.09 ± 0.00

1.03 ± 0.01

697 ± 93

716 ± 109

2061 ± 91

1426 ± 33

697 ± 82

344 ± 27

3148 ± 11

66.6 ± 2.2

385.92 ± 20.04

VMAT-DIBH

1178.59 ± 95.73

2886.67 ± 9.19

1.09 ± 0.00

1.02 ± 0.01

504 ± 79

515 ± 100

1756 ± 80

1264 ± 31

342 ± 47

260 ± 18

3138 ± 9

76.8 ± 2.0

310.89 ± 10.56

VMAT-FB

1478.46 ± 103.17

2890.22 ± 9.37

1.09 ± 0.00

1.00 ± 0.01

618 ± 80

612 ± 101

1979 ± 81

1391 ± 47

683 ± 82

325 ± 27

3134 ± 9

69.3 ± 1.9

339.82 ± 12.33

Tomo-DIBH

1269.43 ± 64.38

2989.44 ± 1.990

1.02 ± 0.00

1.19 ± 0.00

598 ± 75

755 ± 156

2134 ± 81

1565 ± 53

380 ± 39

330 ± 20

3083 ± 3

69.2 ± 2.3

7567.89 ± 451.12

Tomo-FB

1621.90 ± 114.87

2993.33 ± 0.93

1.02 ± 0.00

1.10 ± 0.04

717 ± 93

879 ± 180

2418 ± 108

1652 ± 59

706 ± 70

381 ± 28

3082 ± 4

62.1 ± 2.8

7566.33 ± 524.30

p value*

< 0.001

< 0.001

< 0.001

< 0.001

0.575

0.460

< 0.001

< 0.001

< 0.001

0.002

< 0.001

< 0.001

< 0.001

  1. Data are presented as means over the 9 investigated patients, and errors indicate inter-patient variability at the level of 1 standard deviation. *P values came from the comparisons among 8 plans by each dosimetric parameter
  2. Abbreviations: SD standard deviation, DIBH deep-inspiration breath hold, FB, free-breathing, IMRT intensity-modulated radiotherapy, VMAT volumetric-modulated arc therapy, TV the volume of the body receiving 95% of the prescribed dose, HI, homogeneity index; CI conformity index, PQM plan quality metric, MU motor unit
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Radiation Oncology

ISSN: 1748-717X

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