Table 1.
Definition of the anatomical parameters [22].
| Anatomical parameters | Definition |
|---|---|
| Heart Volume (HV) | Volume of contoured heart in cc |
| Lung Volume (LV) | Volume of contoured bilateral lungs in cc |
| Heart Chest Wall Length (HCWL) | The maximum length of contact between the heart and chest wall |
| Heart Height (HH) | The distance from the superior to inferior extent of the contoured heart |
| Chest Separation (CS) | Maximum separation between medial edge and lateral edge of 50% isodose line along the central axis of beam |
| Chest Depth (CD) | The anterior-posterior thickness of the chest at the level of the maximum chest separation |
| Heart Chest Wall Distance (HCWD) | The distance from the maximal heart point to the chest wall |
| Maximum Heart Depth (MHD) | The maximum distance from the field edge to the heart border |
| Heart Volume in Field (HVIF) | The heart volume encompassed by the 50% isodose line |
| Lung Orthogonal Distance (LOD) | The maximum distance from the field edge to the lung-chest wall interface at the level of maximum cs |
| Central Lung Distance (CLD) | The distance between the midpoint of the posterior field and the edge of chest wall |