We also depicted the legend for the
isodoses and the color codes for the contoured organs at risk
Caption: FIGURE 5: MCPX model and
isodose curves in % representation of XY view of the gamma dose rate distribution in the GB-127 source.
Approximately pear shape
isodose curves were obtained for both applicators.
A total of 11 TLD chips were irradiated with 100 cGy in 3 birds with 100%
isodose line.
Display of dose lines: Fig.2 shows
isodose lines of center layer in treatment plan of one patient.
The Cyberknife delivers
isodose profiles directly to the prostate tumor, utilizing 1) a rapid dose fall-off for adjacent non-target structures and 2) real-time image guidance during radiation delivery to correct for the translational and rotational changes in the prostate gland position.
The median marginal dose to the schwannoma was 13Gy (range 8-20), maximum dose to the schwannoma was 24Gy (range 16-40), and median 50%
isodose line was 50% (range 15-100).
Surprisingly, measurement trends for dosimeters from the unprotected group diverged from each other even within an
isodose group.
Isodose distribution is reviewed and optimized on visualizing dose distribution to the target as well as critical structures.
Radiation oncologists can use Mobile MIM to review dose volume histograms,
isodose curves, contours, and images for treatment plans actions commonly restricted to a limited number of dedicated workstations.
This could be much faster and more accurate than the radiation
isodose plotting that was required in the earlier days of civil defense operations, in which human monitors were needed to go into radiation fields and radio back their readings as they walked through designated areas.
A total of 61.2 Gy was delivered in 34 fractions, with the treatment dose normalized to a 90% maximum
isodose line.
