%0 Journal Article
%T Inter-Fraction and Intra-Fraction Variation in the Absorbed-Dose Delivery during Interstitial High Dose Rate Brachytherapy¡ªA Study Using MicroMOSFET <i>In-Vivo</i> Dosimeter
%A Seenisamy Ramapandian
%A Vivekanandan Nagarajan
%A Ashutosh Mukherji
%A Parthasarathy Vedasoundaram
%A K. S. Reddy
%A Vivekanandam Singhavajala
%A Vijayaprabhu Neelakandan
%J International Journal of Medical Physics,Clinical Engineering and Radiation Oncology
%P 445-456
%@ 2168-5444
%D 2017
%I Scientific Research Publishing
%R 10.4236/ijmpcero.2017.64040
%X <b><span style=\"font-family:Verdana;\">Background: </span></b><span style=\"font-family:Verdana;\">The
delivered dose has to be checked and verified with planned dose since precise
and accurate dose delivery is essential in Brachytherapy. Sources of
uncertainty during Brachytherapy are intra-fraction, inter-fraction and
inter-application variations. </span><span style=\"font-family:Verdana;\">&lt;i&gt;</span><i><span style=\"font-family:Verdana;\">In-vivo</span></i><i><span style=\"font-family:Verdana;\">&lt;/i&gt;</span></i><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\"> dosimetry is the direct method to monitor
the radiation dose delivered to a patient during radiotherapy. In this study, assessment
of the inter-fraction and intra-fraction variations in the interstitial
Brachytherapy was done with microMOSFET. </span><b><span style=\"font-family:Verdana;\">Aim:</span></b><span style=\"font-family:Verdana;\"> To analyze the inter-fraction
variations in dose delivery during interstitial HDR Brachytherapy and to
compare the measured point dose with the TPS-calculated point </span><span style=\"font-family:Verdana;\">dose, intra-fraction variation, using the
microMOSFET </span></span><span style=\"font-family:Verdana;\">&lt;i&gt;</span><i><span style=\"font-family:Verdana;\">in-vivo</span></i><i><span style=\"font-family:Verdana;\">&lt;/i&gt;</span></i><span style=\"font-family:Verdana;\"> dosimeter.</span><span style=\"font-family:&quot;\"> <b><span style=\"font-family:Verdana;\">Ma</span><span style=\"font-family:Verdana;\">terials and
Methods:</span></b><span style=\"font-family:Verdana;\"> From May 2014 to
February 2016, 22 patients with</span><span style=\"font-family:Verdana;\"> Head </span><span style=\"font-family:Verdana;\">and
Neck cancers and 8 patients with Soft-Tissue Sarcomas (STS) were se</span><span style=\"font-family:Verdana;\">lected
for this study. All these patients underwent CT imaging more than 24 hours
after the application. Brachyvision 3DTPS and GammaMed Plus iX HDR unit </span><span style=\"font-family:Verdana;\">were used for treatments. MicroMOSFET </span></span><span style=\"font-family:Verdana;\">&lt;i&gt;</span><i><span style=\"font-family:Verdana;\">in-vivo</span></i><i><span style=\"font-family:Verdana;\">&lt;/i&gt;</span></i><span style=\"font-family:Verdana;\"> dosimeter after calibration</span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\"> was </span><span style=\"font-family:Verdana;\">used for the
measurements of dose inside the treated volume. Intra &amp;
%K MicroMOSFET
%K Interstitial Brachytherapy
%K MicroMOSFET in Brachytherapy
%K &lt
%K i&gt
%K In-Vivo&lt
%K /i&gt
%K Dosimetry in Brachytherapy
%K Dose Verification in Brachytherapy
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=80687