TY - JOUR
T1 - Benefits of a dual sagittal crystal transducer for ultrasound imaging during I-125 seed implantation for permanent prostate brachytherapy
AU - Kaljouw, Emmie
AU - Pieters, Bradley
AU - Koedooder, Kees
AU - Lucas, Cees
AU - Koning, Caro
PY - 2012
Y1 - 2012
N2 - To investigate whether a longer sagittal view and less movement using a dual sagittal crystal probe (DSCP) for trans rectal ultra sound (TRUS) allow for more accurate online-planning in I-125 permanent implant brachytherapy of the prostate, compared to a single sagittal crystal probe (SSCP). Between March 2008 and March 2010, 50 patients with prostate cancer were consecutively included in the study. The first 25 of these patients had both their pre- and online-planning based on a single sagittal crystal probe (SSCP). The treatment-plans of the other 25 patients were based on a DSCP TRUS. Three weeks after implantation a post-planning was made based on CT. TRUS online and CT post-plan dose-volume histogram (DVH) parameters, D(90) and V(100), were compared for both groups. Also, the post-plan DVH parameters of SSCP were compared to DSCP. The possible factors that might influence the post-plan D(90) and V(100) were analysed using Analysis of Variance (ANOVA). SSCP and DSCP online mean D(90) and V(100) were significantly larger than post-plan mean D(90) and V(100) (P < 0.01). The post-plan mean D(90) and mean V(100) were both non-significantly larger for SSCP based post-plans compared to DSCP based post plans (P = 0.76 and P = 0.68). ANOVA showed significant impact of prostate volume on the post-plan D(90) and V(100). The advantages of the dual sagittal crystal probe did not lead to more accurate online planning by investigating DVH-parameters. The only factor found to have influence on the DVH-parameters was the prostate volume
AB - To investigate whether a longer sagittal view and less movement using a dual sagittal crystal probe (DSCP) for trans rectal ultra sound (TRUS) allow for more accurate online-planning in I-125 permanent implant brachytherapy of the prostate, compared to a single sagittal crystal probe (SSCP). Between March 2008 and March 2010, 50 patients with prostate cancer were consecutively included in the study. The first 25 of these patients had both their pre- and online-planning based on a single sagittal crystal probe (SSCP). The treatment-plans of the other 25 patients were based on a DSCP TRUS. Three weeks after implantation a post-planning was made based on CT. TRUS online and CT post-plan dose-volume histogram (DVH) parameters, D(90) and V(100), were compared for both groups. Also, the post-plan DVH parameters of SSCP were compared to DSCP. The possible factors that might influence the post-plan D(90) and V(100) were analysed using Analysis of Variance (ANOVA). SSCP and DSCP online mean D(90) and V(100) were significantly larger than post-plan mean D(90) and V(100) (P < 0.01). The post-plan mean D(90) and mean V(100) were both non-significantly larger for SSCP based post-plans compared to DSCP based post plans (P = 0.76 and P = 0.68). ANOVA showed significant impact of prostate volume on the post-plan D(90) and V(100). The advantages of the dual sagittal crystal probe did not lead to more accurate online planning by investigating DVH-parameters. The only factor found to have influence on the DVH-parameters was the prostate volume
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84867908619&origin=inward
UR - https://www.ncbi.nlm.nih.gov/pubmed/23346143
U2 - https://doi.org/10.5114/jcb.2012.30680
DO - https://doi.org/10.5114/jcb.2012.30680
M3 - Article
C2 - 23346143
SN - 1689-832X
VL - 4
SP - 141
EP - 145
JO - Journal of contemporary brachytherapy
JF - Journal of contemporary brachytherapy
IS - 3
ER -