title: ÐÐ½Ð°Ð»Ð¸Ð· Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð²Ð°ÑÐ¸Ð°Ð±ÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ³Ð°Ð½Ð¾Ð² ÑÐ¸ÑÐºÐ° Ð½Ð° ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð»ÑÑÐµÐ²Ð¾Ð¹ ÑÐµÑÐ°Ð¿Ð¸Ð¸
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: Analysis of the effect of variability in the contouring of organs at risk on the results of radiotherapy
Creators: name: ÐÐ¾Ð¶Ð¸Ñ, ÐÐ°ÑÐº
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: Ð¾ÑÐ³Ð°Ð½Ñ ÑÐ¸ÑÐºÐ°
Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°Ð½Ð¸Ðµ
ÑÑÐ°Ð½Ð´Ð°ÑÑÐ¸Ð·Ð°ÑÐ¸Ñ
Ð¼ÐµÑÑÐ¸ÐºÐ° Ð¥Ð°ÑÑÐ´Ð¾ÑÑÐ° Ð¸ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ ÐÐ°Ð¹ÑÐ°
3d Slicer
organs at risk
contouring
standardization
Hausdorf metric and Dice coefficient

description: ÐÑÑÐµÐ²Ð°Ñ ÑÐµÑÐ°Ð¿Ð¸Ñ â ÑÑÐ¾ Ð²Ð¸Ð´ Ð»ÐµÑÐµÐ½Ð¸Ñ ÑÐ°ÐºÐ°, Ð¿ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÐ¾Ð¼ Ð´Ð»Ñ ÑÐ½Ð¸ÑÑÐ¾Ð¶ÐµÐ½Ð¸Ñ Ð¾Ð¿ÑÑÐ¾Ð»ÐµÐ²ÑÑ ÐºÐ»ÐµÑÐ¾Ðº Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÑÑÑ Ð¸Ð¾Ð½Ð¸Ð·Ð¸ÑÑÑÑÐµÐµ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ðµ. ÐÐµÑÐµÐ´ Ð»ÐµÑÐµÐ½Ð¸ÐµÐ¼ Ð¿Ð°ÑÐ¸ÐµÐ½ÑÐ° Ð¿ÑÐ¾Ð¸ÑÑÐ¾Ð´Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð·Ð°ÐºÐ»ÑÑÐ°ÐµÑÑÑ Ð² Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ð¸ ÐÐ¢ Ð¸Ð»Ð¸ (Ð¸) ÐÐ Ð¢-ÑÐ½Ð¸Ð¼ÐºÐ¾Ð² Ñ ÑÐµÐ»ÑÑ ÑÑÐ¾ÑÐ½ÐµÐ½Ð¸Ñ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¾Ð¿ÑÑÐ¾Ð»Ð¸. ÐÐ¾ÑÐ»Ðµ ÑÑÐ¾Ð³Ð¾ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ°Ð¼Ð¸ Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°ÑÑÑÑ Ð¼Ð¸ÑÐµÐ½Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐ³Ð°Ð½Ñ ÑÐ¸ÑÐºÐ°, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½Ñ Ðº Ð¸Ð¾Ð½Ð¸Ð·Ð¸ÑÑÑÑÐµÐ¼Ñ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ Ð¸ Ð½Ð° ÐºÐ¾ÑÐ¾ÑÑÐµ Ð½ÑÐ¶Ð½Ð¾ ÑÐ½Ð¸Ð·Ð¸ÑÑ Ð´Ð¾Ð·Ñ.Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐµÐºÑÑÐµÐ¹ Ð¿ÑÐ°ÐºÑÐ¸ÐºÐ¸ Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ³Ð°Ð½Ð¾Ð² ÑÐ¸ÑÐºÐ° Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐµÐ½ÑÑÐ°Ñ Ð Ð¾ÑÑÐ¸Ð¸Â  Ñ Ð°ÑÐ»Ð°ÑÐ¾Ð¼ Ð¿Ð¾ Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°Ð½Ð¸Ñ, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð²ÐºÐ»ÑÑÐ°ÐµÑ Ð² ÑÐµÐ±Ñ ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ñ Global Harmonization Group.ÐÑÐ¾Ð²ÐµÑÐºÐ° ÐºÐ¾Ð½ÑÑÑÐ¾Ð² Ð´ÐµÑÑÑÐ¸ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ¾Ð² Ð¿ÑÐ¾ÑÐ¾Ð´Ð¸Ð»Ð° Ð² Ð±ÐµÑÐ¿Ð»Ð°ÑÐ½Ð¾Ð¼ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ð¸ 3d Slicer Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼Ð¾Ð´ÑÐ»Ñ Segment Comparison, ÐºÐ¾ÑÐ¾ÑÑÐ¹ ÑÑÐ°Ð²Ð½Ð¸Ð²Ð°Ð» ÐºÐ¾Ð½ÑÑÑÑ Ð¿Ð¾ Ð´Ð²ÑÐ¼ Ð¼ÐµÑÑÐ¸ÐºÐ°Ð¼ â Ð¥Ð°ÑÑÐ´Ð¾ÑÑÐ° Ð¸ ÐÐ°Ð¹ÑÐ°. ÐÑÐ¾Ð²ÐµÑÐºÐ° Ð¾ÑÐ¿ÑÑÐºÐ°ÐµÐ¼Ð¾Ð¹ Ð´Ð¾Ð·Ñ Ð½Ð° Ð¾ÑÐ³Ð°Ð½Ñ Ð² ÐºÐ¾Ð½ÑÑÑÐ°Ñ Ð¾ÑÑÑÐµÑÑÐ²Ð»ÑÐ»Ð°ÑÑ ÑÐ°ÐºÐ¶Ðµ Ð² 3d Slicer Â Ð¼Ð¾Ð´ÑÐ»ÐµÐ¼ Dose Volume Histogram.Ð ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²ÑÑÑÐ½Ð¸Ð»Ð¾ÑÑ, ÑÑÐ¾ Ð½Ð°Ð·Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÑÐºÑÑÑ Ð² Ð±Ð¾Ð»ÑÑÐ¸Ð½ÑÑÐ²Ðµ ÑÐ»ÑÑÐ°ÐµÐ² Ð½Ðµ ÑÐ¾Ð²Ð¿Ð°Ð´Ð°ÑÑ Ñ Ð½Ð¾Ð¼ÐµÐ½ÐºÐ»Ð°ÑÑÑÐ¾Ð¹ AAPM TG-263, Ð° ÑÐ°ÐºÐ¶Ðµ Ð² ÑÑÐ´Ðµ ÑÐ»ÑÑÐ°ÐµÐ² Ð¿Ð¾Ð´ Ð¾Ð´Ð½Ð¸Ð¼ Ð½Ð°Ð·Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°ÑÑÑÑ ÑÐ°Ð·Ð½ÑÐµ ÑÑÑÑÐºÑÑÑÑ (Bowel Ð¸ Spc_Bowel, SpinalCord Ð¸ SpinalCanal, Mammar_R Ð¸ Mamma_RT). Ð ÑÐ°Ð¼ÐºÐ°Ñ ÐºÐ»Ð¸Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¿ÑÐ°ÐºÑÐ¸ÐºÐ¸, ÑÐ°Ð·Ð½ÑÐµ Ð¿Ð¾Ð´ÑÐ¾Ð´Ñ Ðº Ð¾ÐºÐ¾Ð½ÑÑÑÐ¸Ð²Ð°Ð½Ð¸ÑÂ  ÑÑÐ»Ð¾Ð¶Ð½ÑÑÑ Ð¶Ð¸Ð·Ð½Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°, Ð¿ÑÐ¸Ð²Ð¾Ð´ÑÑ Ðº Ð½Ðµ Ð¿Ð¾Ð½Ð¸Ð¼Ð°Ñ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐµÐ½Ð¸Ð¹ Ð½Ð° Ð¾ÑÐ³Ð°Ð½Ñ ÑÐ¸ÑÐºÐ° Ð¸ Ð²ÐµÐ´ÑÑ Ðº Ð¾ÑÐ¸Ð±ÐºÐ°Ð¼ Ð² Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¼ÐµÑÐ°ÑÑ Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ð¼Ñ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ.
description: Radiation therapy is a type of cancer treatment that uses ionizing radiation to kill cancer cells. Before treatment, a preparation process takes place, which includes acquisition of CT and/or MRI images in order to localise a tumor and critical structures. After that, specialists delineate treatment targets, as well as OARs that are sensitive to ionizing radiation and for which the dose should be reduced.The purpose of this work is to compare the current practice of OARs delineation in various centers of Russia with the reference atlas, proposed by the Global Harmonization Group.Sets of contours prepared by ten specialists were evaluated in the free software 3d Slicer using the Segment Comparison module, which allows one to compare contours with the help of two metrics - Hausdorff and Dice. The delivered dose to the organs was also checked in 3d Slicer using the Dose Volume Histogram module.We found that the structure names in most cases did not coincide with the AAPM TG-263 nomenclature, and in some cases, different structures were outlined under the same name (Bowel and Spc_Bowel, SpinalCord and SpinalCanal, Mammar_R and Mamma_RT). Also, we found significant differences in structure borders. Thus, different contouring approaches may lead to misunderstanding of OAR limitations, potential radiation errors and interfere with implementation of machine learning algorithms in clinical practice.