Improved rectal dosimetry with the use of SpaceOAR during high-dose-rate brachytherapy

Hydrogel spacers have been suggested to limit rectal radiation dose with improvements in clinical outcomes in patients undergoing external beam radiation treatment for prostate cancer. No studies to date have assessed the utility and dosimetric effect of SpaceOAR (Augmenix, Inc, Waltham, MA), the on...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Brachytherapy 2018-03, Vol.17 (2), p.259-264
Hauptverfasser: Wu, Susan Y., Boreta, Lauren, Wu, Ashley, Cheung, Joey P., Cunha, J. Adam M., Shinohara, Katsuto, Chang, Albert J.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 264
container_issue 2
container_start_page 259
container_title Brachytherapy
container_volume 17
creator Wu, Susan Y.
Boreta, Lauren
Wu, Ashley
Cheung, Joey P.
Cunha, J. Adam M.
Shinohara, Katsuto
Chang, Albert J.
description Hydrogel spacers have been suggested to limit rectal radiation dose with improvements in clinical outcomes in patients undergoing external beam radiation treatment for prostate cancer. No studies to date have assessed the utility and dosimetric effect of SpaceOAR (Augmenix, Inc, Waltham, MA), the only Food and Drug Administration–approved hydrogel rectal spacer, for high-dose-rate (HDR) brachytherapy. Eighteen consecutive patients scheduled for HDR brachytherapy in the treatment of prostate cancer underwent transperineal ultrasound-guided placement of 10 cc of SpaceOAR hydrogel following catheter implantation. Treatment plans were generated using an inverse planning simulated annealing algorithm. Rectal dosimetry for these 18 patients was compared with the 36 preceding patients treated with HDR brachytherapy without SpaceOAR. Fifty-four plans were analyzed. There was no difference in age, pretreatment prostate-specific antigen, Gleason score, clinical stage, prostate volume, or contoured rectal volume between those who received SpaceOAR and those who did not. Patients who received SpaceOAR hydrogel had significantly lower dose to the rectum as measured by percent of contoured organ at risk (median, V80 
doi_str_mv 10.1016/j.brachy.2017.10.014
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1973023128</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1538472117304890</els_id><sourcerecordid>1973023128</sourcerecordid><originalsourceid>FETCH-LOGICAL-c362t-9f1cc7650e9f20414d1b3b4d13c1d2b7a0f9702e2b7a6b9762d9761076be7c843</originalsourceid><addsrcrecordid>eNp9kE9P4zAQxS0EArbLN0ArH7mkeGwT15eVEGJ3K1WqxJ-9Wo49Ia6aptgJq357HIXlyGU8Gv2eZ94j5BLYHBiU15t5Fa1rDnPOQOXRnIE8IuewUKIAKfVx7m_EopCKwxn5ltKGZZkW4pSccc2ZAKnPyd9lu4_dG3oa0fV2S32XQot9PNB_oW9o3yAdEtKupo9763B9-0D9EMPuhTbhpSkyjkW0PdLpmsxHuz98Jye13Sa8-Hhn5PnX_dPdn2K1_r28u10VTpS8L3QNzqnyhqGuOZMgPVSiylU48LxSltVaMY5jW1ZaldznAkyVFSq3kGJGrqZ_s4nXAVNv2pAcbrd2h92QDGglGBfAFxmVE-pil1LE2uxjaG08GGBmTNRszOTBjImO05xolv342DBULfpP0f8IM_BzAjD7fAsYTXIBdw59GCM1vgtfb3gHbhWI1Q</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1973023128</pqid></control><display><type>article</type><title>Improved rectal dosimetry with the use of SpaceOAR during high-dose-rate brachytherapy</title><source>Access via ScienceDirect (Elsevier)</source><creator>Wu, Susan Y. ; Boreta, Lauren ; Wu, Ashley ; Cheung, Joey P. ; Cunha, J. Adam M. ; Shinohara, Katsuto ; Chang, Albert J.</creator><creatorcontrib>Wu, Susan Y. ; Boreta, Lauren ; Wu, Ashley ; Cheung, Joey P. ; Cunha, J. Adam M. ; Shinohara, Katsuto ; Chang, Albert J.</creatorcontrib><description>Hydrogel spacers have been suggested to limit rectal radiation dose with improvements in clinical outcomes in patients undergoing external beam radiation treatment for prostate cancer. No studies to date have assessed the utility and dosimetric effect of SpaceOAR (Augmenix, Inc, Waltham, MA), the only Food and Drug Administration–approved hydrogel rectal spacer, for high-dose-rate (HDR) brachytherapy. Eighteen consecutive patients scheduled for HDR brachytherapy in the treatment of prostate cancer underwent transperineal ultrasound-guided placement of 10 cc of SpaceOAR hydrogel following catheter implantation. Treatment plans were generated using an inverse planning simulated annealing algorithm. Rectal dosimetry for these 18 patients was compared with the 36 preceding patients treated with HDR brachytherapy without SpaceOAR. Fifty-four plans were analyzed. There was no difference in age, pretreatment prostate-specific antigen, Gleason score, clinical stage, prostate volume, or contoured rectal volume between those who received SpaceOAR and those who did not. Patients who received SpaceOAR hydrogel had significantly lower dose to the rectum as measured by percent of contoured organ at risk (median, V80 &lt; 0.005% vs. 0.010%, p = 0.003; V75 &lt; 0.005% vs. 0.14%, p &lt; 0.0005; V70 0.09% vs. 0.88%, p &lt; 0.0005; V60 = 1.16% vs. 3.08%, p &lt; 0.0005); similar results were seen for rectal volume in cubic centimeters. One patient who received SpaceOAR developed a perineal abscess 1 month after treatment. Transperineal insertion of SpaceOAR hydrogel at the time of HDR brachytherapy is feasible and decreases rectal radiation dose. Further investigation is needed to assess the clinical impact of this dosimetric improvement and potential toxicity reduction.</description><identifier>ISSN: 1538-4721</identifier><identifier>EISSN: 1873-1449</identifier><identifier>DOI: 10.1016/j.brachy.2017.10.014</identifier><identifier>PMID: 29203149</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Brachytherapy ; Dosimetry ; Hydrogel ; Prostate cancer ; Rectal protection</subject><ispartof>Brachytherapy, 2018-03, Vol.17 (2), p.259-264</ispartof><rights>2017</rights><rights>Published by Elsevier Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-9f1cc7650e9f20414d1b3b4d13c1d2b7a0f9702e2b7a6b9762d9761076be7c843</citedby><cites>FETCH-LOGICAL-c362t-9f1cc7650e9f20414d1b3b4d13c1d2b7a0f9702e2b7a6b9762d9761076be7c843</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.brachy.2017.10.014$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29203149$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Susan Y.</creatorcontrib><creatorcontrib>Boreta, Lauren</creatorcontrib><creatorcontrib>Wu, Ashley</creatorcontrib><creatorcontrib>Cheung, Joey P.</creatorcontrib><creatorcontrib>Cunha, J. Adam M.</creatorcontrib><creatorcontrib>Shinohara, Katsuto</creatorcontrib><creatorcontrib>Chang, Albert J.</creatorcontrib><title>Improved rectal dosimetry with the use of SpaceOAR during high-dose-rate brachytherapy</title><title>Brachytherapy</title><addtitle>Brachytherapy</addtitle><description>Hydrogel spacers have been suggested to limit rectal radiation dose with improvements in clinical outcomes in patients undergoing external beam radiation treatment for prostate cancer. No studies to date have assessed the utility and dosimetric effect of SpaceOAR (Augmenix, Inc, Waltham, MA), the only Food and Drug Administration–approved hydrogel rectal spacer, for high-dose-rate (HDR) brachytherapy. Eighteen consecutive patients scheduled for HDR brachytherapy in the treatment of prostate cancer underwent transperineal ultrasound-guided placement of 10 cc of SpaceOAR hydrogel following catheter implantation. Treatment plans were generated using an inverse planning simulated annealing algorithm. Rectal dosimetry for these 18 patients was compared with the 36 preceding patients treated with HDR brachytherapy without SpaceOAR. Fifty-four plans were analyzed. There was no difference in age, pretreatment prostate-specific antigen, Gleason score, clinical stage, prostate volume, or contoured rectal volume between those who received SpaceOAR and those who did not. Patients who received SpaceOAR hydrogel had significantly lower dose to the rectum as measured by percent of contoured organ at risk (median, V80 &lt; 0.005% vs. 0.010%, p = 0.003; V75 &lt; 0.005% vs. 0.14%, p &lt; 0.0005; V70 0.09% vs. 0.88%, p &lt; 0.0005; V60 = 1.16% vs. 3.08%, p &lt; 0.0005); similar results were seen for rectal volume in cubic centimeters. One patient who received SpaceOAR developed a perineal abscess 1 month after treatment. Transperineal insertion of SpaceOAR hydrogel at the time of HDR brachytherapy is feasible and decreases rectal radiation dose. Further investigation is needed to assess the clinical impact of this dosimetric improvement and potential toxicity reduction.</description><subject>Brachytherapy</subject><subject>Dosimetry</subject><subject>Hydrogel</subject><subject>Prostate cancer</subject><subject>Rectal protection</subject><issn>1538-4721</issn><issn>1873-1449</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kE9P4zAQxS0EArbLN0ArH7mkeGwT15eVEGJ3K1WqxJ-9Wo49Ia6aptgJq357HIXlyGU8Gv2eZ94j5BLYHBiU15t5Fa1rDnPOQOXRnIE8IuewUKIAKfVx7m_EopCKwxn5ltKGZZkW4pSccc2ZAKnPyd9lu4_dG3oa0fV2S32XQot9PNB_oW9o3yAdEtKupo9763B9-0D9EMPuhTbhpSkyjkW0PdLpmsxHuz98Jye13Sa8-Hhn5PnX_dPdn2K1_r28u10VTpS8L3QNzqnyhqGuOZMgPVSiylU48LxSltVaMY5jW1ZaldznAkyVFSq3kGJGrqZ_s4nXAVNv2pAcbrd2h92QDGglGBfAFxmVE-pil1LE2uxjaG08GGBmTNRszOTBjImO05xolv342DBULfpP0f8IM_BzAjD7fAsYTXIBdw59GCM1vgtfb3gHbhWI1Q</recordid><startdate>201803</startdate><enddate>201803</enddate><creator>Wu, Susan Y.</creator><creator>Boreta, Lauren</creator><creator>Wu, Ashley</creator><creator>Cheung, Joey P.</creator><creator>Cunha, J. Adam M.</creator><creator>Shinohara, Katsuto</creator><creator>Chang, Albert J.</creator><general>Elsevier Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201803</creationdate><title>Improved rectal dosimetry with the use of SpaceOAR during high-dose-rate brachytherapy</title><author>Wu, Susan Y. ; Boreta, Lauren ; Wu, Ashley ; Cheung, Joey P. ; Cunha, J. Adam M. ; Shinohara, Katsuto ; Chang, Albert J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-9f1cc7650e9f20414d1b3b4d13c1d2b7a0f9702e2b7a6b9762d9761076be7c843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Brachytherapy</topic><topic>Dosimetry</topic><topic>Hydrogel</topic><topic>Prostate cancer</topic><topic>Rectal protection</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Susan Y.</creatorcontrib><creatorcontrib>Boreta, Lauren</creatorcontrib><creatorcontrib>Wu, Ashley</creatorcontrib><creatorcontrib>Cheung, Joey P.</creatorcontrib><creatorcontrib>Cunha, J. Adam M.</creatorcontrib><creatorcontrib>Shinohara, Katsuto</creatorcontrib><creatorcontrib>Chang, Albert J.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Brachytherapy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Susan Y.</au><au>Boreta, Lauren</au><au>Wu, Ashley</au><au>Cheung, Joey P.</au><au>Cunha, J. Adam M.</au><au>Shinohara, Katsuto</au><au>Chang, Albert J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved rectal dosimetry with the use of SpaceOAR during high-dose-rate brachytherapy</atitle><jtitle>Brachytherapy</jtitle><addtitle>Brachytherapy</addtitle><date>2018-03</date><risdate>2018</risdate><volume>17</volume><issue>2</issue><spage>259</spage><epage>264</epage><pages>259-264</pages><issn>1538-4721</issn><eissn>1873-1449</eissn><abstract>Hydrogel spacers have been suggested to limit rectal radiation dose with improvements in clinical outcomes in patients undergoing external beam radiation treatment for prostate cancer. No studies to date have assessed the utility and dosimetric effect of SpaceOAR (Augmenix, Inc, Waltham, MA), the only Food and Drug Administration–approved hydrogel rectal spacer, for high-dose-rate (HDR) brachytherapy. Eighteen consecutive patients scheduled for HDR brachytherapy in the treatment of prostate cancer underwent transperineal ultrasound-guided placement of 10 cc of SpaceOAR hydrogel following catheter implantation. Treatment plans were generated using an inverse planning simulated annealing algorithm. Rectal dosimetry for these 18 patients was compared with the 36 preceding patients treated with HDR brachytherapy without SpaceOAR. Fifty-four plans were analyzed. There was no difference in age, pretreatment prostate-specific antigen, Gleason score, clinical stage, prostate volume, or contoured rectal volume between those who received SpaceOAR and those who did not. Patients who received SpaceOAR hydrogel had significantly lower dose to the rectum as measured by percent of contoured organ at risk (median, V80 &lt; 0.005% vs. 0.010%, p = 0.003; V75 &lt; 0.005% vs. 0.14%, p &lt; 0.0005; V70 0.09% vs. 0.88%, p &lt; 0.0005; V60 = 1.16% vs. 3.08%, p &lt; 0.0005); similar results were seen for rectal volume in cubic centimeters. One patient who received SpaceOAR developed a perineal abscess 1 month after treatment. Transperineal insertion of SpaceOAR hydrogel at the time of HDR brachytherapy is feasible and decreases rectal radiation dose. Further investigation is needed to assess the clinical impact of this dosimetric improvement and potential toxicity reduction.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>29203149</pmid><doi>10.1016/j.brachy.2017.10.014</doi><tpages>6</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1538-4721
ispartof Brachytherapy, 2018-03, Vol.17 (2), p.259-264
issn 1538-4721
1873-1449
language eng
recordid cdi_proquest_miscellaneous_1973023128
source Access via ScienceDirect (Elsevier)
subjects Brachytherapy
Dosimetry
Hydrogel
Prostate cancer
Rectal protection
title Improved rectal dosimetry with the use of SpaceOAR during high-dose-rate brachytherapy
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T03%3A02%3A48IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Improved%20rectal%20dosimetry%20with%20the%20use%20of%20SpaceOAR%20during%20high-dose-rate%20brachytherapy&rft.jtitle=Brachytherapy&rft.au=Wu,%20Susan%20Y.&rft.date=2018-03&rft.volume=17&rft.issue=2&rft.spage=259&rft.epage=264&rft.pages=259-264&rft.issn=1538-4721&rft.eissn=1873-1449&rft_id=info:doi/10.1016/j.brachy.2017.10.014&rft_dat=%3Cproquest_cross%3E1973023128%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1973023128&rft_id=info:pmid/29203149&rft_els_id=S1538472117304890&rfr_iscdi=true