Ultrasonic topometry in planning radiation therapy of gynecological cancer

Ultra sonography - the most available, high-informative and widely used method in oncogynecological practice, the method of primary and exact diagnostics not included with the standard prebeam preparation and dosimetric planning. Ultrasonic topometry (UST) on ultrasound device «Voluson 730 Pro» (General Electric Medical Systems ®, Austria), in 2D-3D modes under prebeam preparation and monitoring of treatment carried out in 1449 with gynecological cancer. Over the course of treatment in one patient became on average 11,2 ± 1,6 studies. Performing dynamic UST in the planning and monitoring of intracavitary irradiation of tumors of all sites to individually choose the design of the endostats, control the position of the tumor relative to the applicator, to choose the amount of therapeutically isodose contour (CTV, PTV), define the zone of escalation and spare zone that on average twice - from 4,2 ± 0,7 to 1,8 ± 0,4 times - reduce the number of procedures CT / MRI-planning.