Table 1.
Per tangent mean midline lung depth (<mLD>) assessment for all patients: relation to tolerance window (TW), maximum deviation from the planned midline LD and number of fractions of <mLD> outside TW in total and for fractions with single EPID position verification prior to treatment (sEPID).
| Patient | <mLD> vs TW | Maximum of [<mLD> – planned mLD], mm | Number of fractions with <mLD> outside TW/Total number of fractions |
Number of fractions with sEPID outside TW/Number of fractions with sEPID |
||
|---|---|---|---|---|---|---|
| Gantry angle 1* | Gantry angle 2 | Gantry angle 1* | Gantry angle 2 | |||
| 1 | Below & Above | −16.2 | 11/14 | 10/14 | 1/2 | 0/2 |
| 2 | Below | −6.8 | 7/10 | 4/12 | 7/10 [KV] | 4/12 |
| 3 | Below & Above | 10 | 5/9 | 4/10 | 0/1 | 2/2 |
| 4 | Below | −9.5 | 9/14 | 8/14 | 2/5 | 0/5 |
| 5 | Below | −10.3 | 9/10 | 9/10 | 0/1 | 0/1 |
| 6 | Above | 10.5 | 9/10 | 5/14 | NA | 0/4 |
| 7 | Below | −13.3 | 8/8 | 7/8 | ||
| 8 | Below | −7.9 | 9/11 | 6/11 | ||
| 9 | Below | −10.7 | 3/8 | 8/8 | 2/7 | 7/8 |
| 10 | Below & Above | −6.2 | 1/3 | 4/5 | 1/1 | 3/2 |
| 11 | Within | −2.3 | 0/12 | 0/12 | 0/12 | 0/12 |
| 12 | Below | −8.1 | 3/3 | 3/3 | ||
| 13 | Below | −7.1 | 5/12 | 4/12 | ||
| 14 | Below | −3.4 | 1/6 | 2/8 | NA | 1/2 |
| 15 | Above | 8.6 | 2/3 | 1/3 | ||
| 16 | Above | 3.4 | NA | 1/3 | NA | 1/3 |
| 17 | Below | −8.4 | 3/3 | 1/5 | 1/2 | 0/2 |
*Due to clinical imaging for position verification, some of the first beams were not available for observation for patients 1, 2, 3, 6, 10, 14, 16, and 17. NA: not available.