Skip to main content

Table 2 Treatment and dosimetric characteristics

From: Stereotactic body radiotherapy (SBRT) for high-risk central pulmonary metastases

Characteristic No. patients (%) Characteristic No. patients (%)
Prior thoracic surgery Prescription dose (Gy)
 Yes 12 (60)  35 8 (40)
 No 8 (40)  40 12 (60)
Prior chemotherapy Max point dose (Gy)
 Yes 15 (75)  Mean 48.3
 No 5 (25)  Median 46.7
PTV volume (cc)  Range 41.7–57.1
 Mean 111.3 Major bronchus max dose (Gy)
 Median 85.8  Mean 46.7
 Range 22.6–300.0  Median 46.4
Conformality index  Range 40.0–50.0
 Mean 1.53 Esophagus max dose (Gy)
 Median 1.50  Mean 28.7
 Range 1.21–1.93  Median 31.1
Rx isodose line (%)  Range 10.8–40.6
 Mean 75.5 Spinal cord max dose (Gy)
 Median 75.2  Mean 12.7
 Range 70.0–80.0  Median 13.7
PTV coverage (%)  Range 3.2–19.3
 Mean 98.0 Left ventricle max dose (Gy)
 Median 98.0  Mean 14.9
 Range 96–100  Range 5.1–37.3
Treatment length Days Total lung V15 Gy (cc)
 Median 7  Mean 399.4
 Range 5–8  Range 145.0–1005.0