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Table 3 Cases grouped according to their level of acceptance

From: SBRT for centrally localized NSCLC – What is too central?

Level of acceptance

High (>85%)

Intermediate

Low (<50%)

Case Nr.

5, 6, 9

1, 2, 3, 7, 8

4

Most critical organ at risk

Main bronchus, esophagus, aorta

Main bronchus, upper lobe bronchus, aorta

Main bronchus

Maximal tumor diameter (range/median)

2.1–3.7 cm/3.5 cm

1.9–5.7 cm/4.7 cm

7.6 cm

Minimal distance to carina (range/median)

7.5–8.3 cm/7.8 cm

2.5–6.5 cm/3.8 cm

0 cm

Minimal distance to main bronchus (range/median)

1.9–4.6 cm/2.2 cm

0–0.5 cm/0 cm

0 cm

Alternative treatment

RT 70 Gy/35 fr.

RCT: 66 Gy/33 fr.

RT: 30 Gy/10 fr. or RCT: 66 Gy/33 fr.

Most frequently stereotactic fractionation

60 Gy/8 fr.

60 Gy/8 fr.

40 Gy/8 fr.

Second most frequently stereotactic fractionation

37,5–50 Gy/3 fr.

35–40 Gy/5 fr.

48 Gy/8 fr.

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