Table 3 Treatment characteristics
From: MR-guided stereotactic body radiation therapy for primary cardiac sarcomas
| Patient 1 (LMU) | Patient 2 (LMU) | Patient 3 (LMU) | Patient 4 (A. Gemelli) | |||
|---|---|---|---|---|---|---|
| Site of RT | Left atrium | Right atrium | Epicardial right | Right atrium/ventricle | ||
| Number of lesions | 1 | 1 | 3 | 1 | ||
| Pre-treatment Size (cm3) | 2.3 × 1.3 × 2.1 | 4.6 × 4.0 × 4.3 | 2.8 × 3.2 × 1.5 | 4.7 × 4.4 × 3.0 | 1.6 × 1.2 × 1.9 | 5.6 × 5.8 × 7.2 |
| Prescription total dose (Gy) | 35 | 35 | 35 | 30 | ||
| Prescription single dose (Gy) | 7 | 7 | 7 | 6 | ||
| Isodose prescription | 80% | 80% | 80% | Dmean | ||
| Treatment on | Non-consecutive days | Non-consecutive days | Non-consecutive days | Daily | ||
| Lesion | GTV1 | GTV1 | GTV1 | GTV2 | GTV3 | GTV1 |
| GTV volume (cc) | 3.13 | 38.02 | 12.94 | 24.03 | 2.51 | 56.9 |
| GTV Dmin (Gy) | 37.29 | 36.14 | 36.71 | 29.58 | 36.56 | 12.9 |
| GTV D98% (Gy) | 38.52 | 38.08 | 38.85 | 37.80 | 38.68 | 25.52 |
| GTV Dmax (Gy) | 41 | 43.27 | 43.54 | 44.47 | 43.37 | 33.13 |
| GTV D2% (Gy) | 40.81 | 42.53 | 42.86 | 43.27 | 42.98 | 31.84 |
| GTV Dmean (Gy) | 39.72 | 40.78 | 41.12 | 41.03 | 40.92 | 30.06 |
| PTV | PTV1 | PTV1 | PTV1 | PTV2 | PTV3 | PTV1 |
| PTV volume (cc) | 8.99 | 55.39 | 17.71 | 38.12 | 5.78 | 87.12 |
| PTV Dmin (Gy) | 31.83 | 25.97 | 30.77 | 23.92 | 31.62 | 10.74 |
| PTV D98% (Gy) | 34.62 | 29.24 | 35.01 | 34.05 | 35.14 | 23.14 |
| PTV Dmax (Gy) | 41 | 43.27 | 43.54 | 44.47 | 43.37 | 33.13 |
| PTV D2% (Gy) | 40.56 | 42.32 | 42.73 | 43.02 | 42.76 | 31.75 |
| PTV Dmean (Gy) | 38.29 | 38.03 | 39.88 | 39.92 | 39.5 | 29.61 |
| Heart sub PTV Dmax (Gy) | 37.66 | 35.4 | 38.44 | 31.12 | ||
| Heart sub PTV Dmean (Gy) | 3.54 | 6.33 | 7.87 | 8.46 | ||
| MU | 2203 | 1894 | 4208 | 3836 | ||
| Beams | 13 | 12 | 10 | 10 | ||
| Segments | 44 | 40 | 79 | 90 | ||
| Feasibility (treatment delivered within planned time schedule) | 100% | 100% | 100% | 100% | ||