Skip to main content

Table 5 Details of the dosimetric unacceptable deviations of HA-WBRT according to RTOG 0933 dosimetric constraints (22)

From: Quality assurance analysis of hippocampal avoidance in a melanoma whole brain radiotherapy randomized trial shows good compliance

Patient

Hippo

UD Value

Max value

Excess over 0933 UD as percentage

Comments

1

Right

Dmax

(> 17 Gy)

17.85 Gy

5.0%

RT given prior to RTOG 0933 constraints being published

2

Right

Dmin

(> 10 Gy)

10.4 Gy

4.0%

RT given prior to RTOG 0933 constraints being published

3

Left

Dmax

(> 17 Gy)

17.24 Gy

1.4%

Multiple dosimetry has been realized to decrease the Dmax on left hippocampus. This patient had D2%Left_hippo of 14.05 Gy

4

Right

Dmin

(>  10 Gy)

10.33 Gy

3.3%

 
  1. Dmax Maximum dose, Dmin Minimum dose, HA-WBRT Hippocampal avoidance during whole brain radiotherapy, Hippo Hippocampus, Max Maximum, MBM Melanoma brain metastases, RT Radiotherapy, SIB Simultaneous integrated boost, SRS Radiosurgery, UD Unacceptable deviation (22)