{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,20]],"date-time":"2026-06-20T07:18:12Z","timestamp":1781939892113,"version":"3.54.5"},"reference-count":27,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,3,4]],"date-time":"2013-03-04T00:00:00Z","timestamp":1362355200000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2013,3]]},"abstract":"<jats:p>The purpose of this study was to evaluate the applicator\u2010guided volumetric\u2010modulated arc therapy (AGVMAT) solution as an alternative to high\u2010dose\u2010rate brachytherapy (HDR\u2010BRT) treatment of the vaginal vault in patients with gynecological cancer (GC). AGVMAT plans for 51 women were developed. The volumetric scans used for plans were obtained with an implanted CT\u2010compatible vaginal cylinder which provides spatial registration and immobilization of the gynecologic organs. Dosimetric and radiobiological comparisons for planning target volume (PTV) and organs at risk (OARs) were performed by means of a dose\u2010volume histogram (DVH), equivalent uniform dose (EUD), and local tumor control probability (LTCP). In addition, the integral dose and the overall delivery time, were evaluated. The HDR\u2010BRT averages of EUD and minimum LTCP were significantly higher than those of AGVMAT. Doses for the OARs were comparable for the bladder and sigmoid, while, although HDR\u2010BRT was able to better spare the bowel, AGVMAT provided a significant reduction of <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/acm20146-math-0001.png\" xlink:title=\"urn:x-wiley:15269914:acm20146:equation:acm20146-math-0001\"\/>, <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/acm20146-math-0002.png\" xlink:title=\"urn:x-wiley:15269914:acm20146:equation:acm20146-math-0002\"\/>, and <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/acm20146-math-0003.png\" xlink:title=\"urn:x-wiley:15269914:acm20146:equation:acm20146-math-0003\"\/> (<jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/acm20146-math-0004.png\" xlink:title=\"urn:x-wiley:15269914:acm20146:equation:acm20146-math-0004\"\/>) for the rectum. AGVMAT integral doses were higher than HDR\u2010BRT with low values in both cases. Delivery times were about two or three times higher for HDR\u2010BRT with respect to the single arc technique (AGVMAT1) and dual arc technique (AGVMAT2), respectively. The applicator\u2010guided volumetric\u2010modulated arc therapy seems to have the potential of improving rectum avoidance. However, brachytherapy improves performance in terms of PTV coverage, as demonstrated by a greater EUD and better LTCP curves.<\/jats:p><jats:p>PACS number: 87<\/jats:p>","DOI":"10.1120\/jacmp.v14i2.4075","type":"journal-article","created":{"date-parts":[[2017,2,27]],"date-time":"2017-02-27T23:03:34Z","timestamp":1488236614000},"page":"146-157","source":"Crossref","is-referenced-by-count":8,"title":["Local tumor control probability to evaluate an applicator\u2010guided volumetric\u2010modulated arc therapy solution as alternative of 3D brachytherapy for the treatment of the vaginal vault in patients affected by gynecological cancer"],"prefix":"10.1002","volume":"14","author":[{"given":"Piernicola","family":"Pedicini","sequence":"first","affiliation":[{"name":"I.R.C.C.S. 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