Open AccessModern Imaging Techniques and Their Role in Contact Radiation Therapy (Brachytherapy) Planning
Author(s) -
Н. В. Нуднов,
В. А. Титова
Publication year - 2021
Publication title -
vestnik rentgenologii i radiologii
Language(s) - English
Resource type - Journals
eISSN - 2619-0478
pISSN - 0042-4676
DOI - 10.20862/0042-4676-2021-102-5-268-275
Subject(s) - contouring , medicine , radiation treatment planning , brachytherapy , medical physics , magnetic resonance imaging , radiation therapy , quality assurance , positron emission tomography , radiology , nuclear medicine , computer science , computer graphics (images) , external quality assessment , pathology
The paper considers an algorithm for the diagnostic study of patients with cancer of different localization, the possibility and feasibility of involving imaging techniques in radiation therapy and brachytherapy (BT) planning. The most widely used ultrasound in BT planning does not exclude a subjective assessment of the boundaries of the tumor and organs at risk, as well as the inaccuracies caused by endostatic devices. Magnetic resonance imaging (MRI) provides a high level of achievement of the criteria necessary for BT planning, but it has financial constraints and the need for individual selection of research conditions. Computed tomography (CT) is the most effective technique for visualizing the tumor, endostatic devices, and organs at risk for BT 3D planning. The involvement of MRI and positron emission tomography with CT in BT planning is a promising area that requires equipping with a mathematical tool for double and triple contouring of the tumor and organs at risk and for defining protection priorities. The prescribed and used focal dose should be controlled by direct dosimetry methods to ensure quality assurance.