1035 / 1609
Natural Dose-Volume Histogram
0.0
1.0
2.0
3.0
4.0
5.0
dV/d(u)
10
6
360
1000
380 400
500
600 700 800
Dose (cGy)
LD HD
PD
u(D) = D
–3/2
Two-plane breast implant, SSDS optimized
Ref. Air Kerma = 0.3206 cGy.m
2
( cm
3
.cGy
3/2
)
Uniformity Index = 2.26
Quality Index = 3.40
NPD
•
The prescription dose PD is defined as 90% of the mean dose in the basal
dose points, i.e. 90% of the peak dose value.
•
The prescription dose PD coincides with the
natural prescription dose NPD
which lies at the base of the peak at the Low Dose side.
The Natural Dose Volume Histogram (NDVH)
Courtesy of Dimos Baltas