Re-implantation after insufficient primary 125-i permanent prostate brachytherapy

Radiation Oncology

Table 5 Dosimetric parameters after primary (p) and secondary (s) implantation

Patient number	D90p [%]		V50 [cm³]		V100 [cm³]		V150 [cm³]		V100p [cm³]		V150p [cm³]
	p	s	p	s	p	s	p	s	p	s	p	s
1	62.8	104.4	106.5	126.4	52.6	62.7	32.6	37.6	25.5	34.1	19.5	25.5
2	67.6	140.2	160.9	215.6	76.7	106.9	45.8	66.4	23.4	30.7	16.1	26.3
3	57.2	123.5	112.7	161.2	55.4	82.4	32.9	51.0	27.5	39.4	19.0	32.2
4	77.0	107.9	110.5	132.5	47.7	65.0	20.1	40.1	32.4	29.3	14.6	22.9
5	61.7	95.9	130.1	162.5	59.8	81.7	31.7	42.7	26.4	37.4	13.3	19.5
Median control	105.4		142.7		70.5		41.7		36.9		27.3

(D90p – the percentage of the prescribed dose covering 90% of the prostate volume, V50, V100, V150 – the volume receiving 50%, 100% and 150% of the prescribed dose respectively, V100p, V150 – the volume of the prostate in cm³ receiving 100% and 150% of the prescribed dose respectively).
The median values of a control group of 165 consecutive patients was added as control.

ISSN: 1748-717X