Research Article

Implant R100 Predicts Rectal Bleeding in Prostate Cancer Patients Treated with IG-IMRT to 45 Gy and Pd-103 Implant

Table 3

Individual D90 and implant R100 values.

Patient no.D90 (Gy)Implant R100 (cc) Rectal bleedingPatient no.D90 (Gy)Implant R100 (cc)Rectal bleeding

178.60.27None32101.00.09None
285.50.16None33101.70.52None
387.20.19None34104.00.83None
489.20.30None35104.10.63None
589.20.77Grade 236104.60.18None
689.80.05None37105.00.12None
790.30.05None38107.00.24None
890.40.01None39107.10.87None
991.20.00None40107.20.37None
1093.30.55None41107.31.76None
1193.50.04None42107.60.06None
1293.60.00None43107.80.02None
1394.70.41None44108.80.80None
1494.70.26None45109.10.34None
1594.90.09None46111.50.73None
1695.70.29None47112.11.83Grade 1
1795.90.32None48112.30.08None
1896.80.95None49113.20.44None
1997.11.91Grade 150114.30.06Grade 3
2097.41.05None51114.80.00None
2198.10.00None52118.00.80None
2298.20.27Grade 153119.70.36None
2398.31.02Grade 254120.60.05None
2499.00.30Grade 155121.30.02None
2599.10.58Grade 256122.70.50None
2699.70.23None57123.60.86None
2799.80.75None58126.01.22None
28100.00.24None59127.20.89None
29100.10.37Grade 260133.01.74Grade 2
30100.30.04None61146.61.05None
31100.70.10None

R100: volume of rectum receiving 100% of prescribed dose.