title: Ð£ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð² Ð°Ð¿Ð¿Ð»Ð¸ÐºÐ°ÑÐ¾ÑÐ°Ñ Ð´Ð»Ñ Ð±ÑÐ°Ñ Ð¸ÑÐµÑÐ°Ð¿Ð¸Ð¸ Ð¸ ÐµÐ³Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð° ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð½Ð¾Ð¹ Ð´Ð¾Ð·Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Improvement of the positioning of the source in applicators for brachytherapy and its impact on the distribution of the absorbed dose
Creators: name: ÐÐ½Ð°Ð½ÑÐµÐ²Ð°, ÐÐ½Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð­Ð»ÐµÐ¼ÐµÐ½ÑÐ°ÑÐ½ÑÐµ ÑÐ°ÑÑÐ¸ÑÑ
Ð Ð°Ð´Ð¸Ð¾Ð³ÑÐ°ÑÐ¸Ñ
Ð±ÑÐ°Ñ Ð¸ÑÐµÑÐ°Ð¿Ð¸Ñ
ÑÐ°Ðº ÑÐµÐ¹ÐºÐ¸ Ð¼Ð°ÑÐºÐ¸
Ð´Ð¾Ð·Ð¸Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÐºÐ¾Ð»ÑÑÐµÐ²ÑÐµ Ð°Ð¿Ð¿Ð»Ð¸ÐºÐ°ÑÐ¾ÑÑ
Ð¿ÑÑÑ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ°
brachytherapy
cervical cancer
dosimetric planning
ring applicators
source path

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¾Ð±Ð·Ð¾ÑÑ ÑÐ¸Ð¿Ð¾Ð² Ð±ÑÐ°ÑÐ¸ÑÐµÑÐ°Ð¿Ð¸Ð¸ ÑÐ°ÐºÐ° ÑÐµÐ¹ÐºÐ¸ Ð¼Ð°ÑÐºÐ¸ Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼ÑÑ Ð°Ð¿Ð¿Ð»Ð¸ÐºÐ°ÑÐ¾ÑÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð²ÐµÑÐºÐµ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¾Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð²Ð½ÑÑÑÐ¸ ÐºÐ¾Ð»ÑÑÐµÐ²ÑÑ Ð°Ð¿Ð¿Ð»Ð¸ÐºÐ°ÑÐ¾ÑÐ¾Ð², ÑÐ¾Ð²Ð¼ÐµÑÑÐ¸Ð¼ÑÑ Ñ ÐÐ¢/ÐÐ Ð¢, ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Varian, Ð¾Ð´Ð¸Ð½ Ñ ÑÐ³Ð»Ð¾Ð¼ Ð½Ð°ÐºÐ»Ð¾Ð½Ð° 60Â° ÑÐ°Ð·Ð¼ÐµÑÐ¾Ð¼ 30 x 36 Ð¼Ð¼ Ð¸ Ð²ÑÐ¾ÑÐ¾Ð¹ Ñ ÑÐ³Ð»Ð¾Ð¼ 45Â°, ÑÐ°Ð·Ð¼ÐµÑÐ¾Ð¼ 26 x 32 Ð¼Ð¼. ÐÑÐ» Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½ Ð¼ÐµÑÐ¾Ð´ Ð°Ð²ÑÐ¾ÑÐ°Ð´Ð¸Ð¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð½Ð° Ð³Ð°ÑÑÑÐ¾Ð¼Ð½ÑÑ Ð¿Ð»ÑÐ½ÐºÐ°Ñ Ð½Ð° Ð°ÑÑÐµÑÐ»Ð¾Ð°Ð´ÐµÑÐµ GammaMedplusâ¢ iX. Ð­ÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¾, ÑÑÐ¾ ÑÐ¼ÐµÑÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¹ Ð²Ð½ÑÑÑÐ¸ Ð´Ð°Ð½Ð½ÑÑ Ð°Ð¿Ð¿Ð»Ð¸ÐºÐ°ÑÐ¾ÑÐ¾Ð² Ð¿ÑÐ¸ÑÑÑÑÑÐ²ÑÐµÑ, Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ¼ÐµÑÐµÐ½Ð¸Ð¹ Ð´Ð»Ñ ÐºÐ°Ð¶Ð´Ð¾Ð¹ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¸ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ°, -4,64 ÑÐ¼ Ð´Ð»Ñ ÐºÐ¾Ð»ÑÑÐ° 45Â° Ð¸ -4,68 ÑÐ¼ Ð´Ð»Ñ ÐºÐ¾Ð»ÑÑÐ° 60Â°. ÐÐ°Ð»ÐµÐµ Ð² Ð¿Ð»Ð°Ð½Ð¸ÑÑÑÑÐµÐ¹ ÑÐ¸ÑÑÐµÐ¼Ðµ Eclipseâ¢ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Varian Ð±ÑÐ» Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐ½ Ð¼ÐµÑÐ¾Ð´ ÐºÐ¾ÑÑÐµÐºÑÐ¸Ð¸, Ð¾Ð´Ð¸Ð½Ð°ÐºÐ¾Ð²ÑÐ¹ Ð´Ð»Ñ Ð¾Ð±Ð¾Ð¸Ñ ÐºÐ¾Ð»ÐµÑ, Ð´Ð»Ñ Ð¾ÑÐ¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ ÑÐµÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð´Ð¾Ð· â ÑÐ¼ÐµÑÐµÐ½Ð¸Ðµ Ð½Ð° 0,5 ÑÐ¼ Ð´Ð¸ÑÑÐ°Ð»ÑÐ½Ð¾, ÑÑÐ¾ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ ÑÐ¼ÐµÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¹ Ð¿Ð¾ Ð½Ð¾Ð¼ÐµÑÐ°Ð¼, Ð¿ÑÐ¸ ÑÑÐ¾Ð¼ Ð¿ÐµÑÐ²Ð°Ñ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ñ ÑÑÐ°Ð½Ð¾Ð²Ð¸ÑÑÑ Ð·Ð°Ð¿ÑÐµÑÐ½Ð¾Ð¹. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑ Ð²Ð²ÐµÑÑÐ¸ Ð´Ð°Ð½Ð½ÑÐµ Ð°Ð¿Ð¿Ð»Ð¸ÐºÐ°ÑÐ¾ÑÑ Ð² ÑÐºÑÐ¿Ð»ÑÐ°ÑÐ°ÑÐ¸Ñ, ÑÑÐ¾ Ð·Ð°Ð¼ÐµÑÐ½Ð¾ ÑÐ»ÑÑÑÐ¸Ñ ÐºÐ°ÑÐµÑÑÐ²Ð¾ Ð»ÐµÑÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ¸ÐµÐ½ÑÐ¾Ðº, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÐÐ Ð¢ Ð´Ð»Ñ Ð±Ð¾Ð»ÐµÐµ ÑÑÑÐºÐ¾Ð¹ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¾Ð¿ÑÑÐ¾Ð»Ð¸.
description: This paper reviews the types of cervical cancer brachytherapy and compares the applied applicators, as well as checking the positioning of the source inside Varian CT/MRI compatible ring applicators, one with a 60Â° angle of 30 x 36 mm and the second with a 45Â° angle, size 26 x 32 mm. The method of autoradiography on radiochromic films on the GammaMedplusâ¢ iX afterloader was used. An experimental study showed that the displacement of positions within these applicators is present, the displacement values ââwere obtained for each position of the source, -4.64 cm for the 45Â° ring and -4.68 cm for the 60Â° ring. Next, a correction method was applied in Varian's Eclipseâ¢ planning system same for both rings to reflect the actual distribution of doses - a shift of 0.5 cm distally, which corresponds to a shift in positions by numbers, with the first position becoming forbidden. The results obtained make it possible to put these applicators into operation, which will significantly improve the quality of treatment for patients, and will also allow the use of MRI technology for clearer tumor visualization.