Table 1.

Patient and tumor characteristics

Patients (n = 44)
Male 1 pulmonary lesion 2 pulmonary lesions 3 pulmonary lesions 1 hepatic lesion 2 hepatic lesions 1 pulmonary and 1 hepatic lesion 2 pulmonary and 1 hepatic lesions	n = 29 (65.9%) n = 16 n = 1 n = 2 n = 7 n = 1 n = 1 n = 1	Female 1 pulmonary lesion 2 pulmonary lesions 1 hepatic lesion	n = 15 (34.1%) n = 8 n = 1 n = 6
Treatment plans (n = 54)
Malignant pulmonary lesions (n = 37) (68.5%)		Malignant hepatic lesions (n = 17) (31.5%)
Median age	73 years (52–86 years)	Median age	63 years (37–84 years)
Peripheral location Central/superior location Right pulmonary lobe Left pulmonary lobe	n = 21 n = 16 n = 21 n = 16	Left hepatic lobe (segment 1–4) Right hepatic lobe (segment 5–8)	n = 8 n = 9
NSCLC SCLC Pulmonary metastases Not clearly assignable	n = 8 n = 1 n = 23 n = 5	HCC Hepatic metastases Not clearly assignable	n = 5 n = 10 n = 2
GTV: median = 3.9 ccm (0.4–40.4 ccm) PTV: median = 14.4 ccm (4.0–94.1 ccm)		GTV: median = 12.6 ccm (0.6–142.4 ccm) PTV: median = 46.0 ccm (15.7–223.9 ccm)

NSCLC non-small cell lung carcinoma, SCLC small cell lung carcinoma, HCC hepatocellular carcinoma, PTV planning target volume, GTV gross tumor volume