Pediatric Hematology/Oncology and ImmunopathologyPediatric Hematology/Oncology and ImmunopathologyВопросы гематологии/онкологии и иммунопатологии в педиатрии1726-17082414-9314Fund Doctors, Innovations, Science for Children19210.24287/1726-1708-2018-17-3-60-65ORIGINAL ARTICLESОРИГИНАЛЬНЫЕ СТАТЬИRadiation treatment planning based on MRI only: first stepsПланирование лучевой терапии на основе магнитно-резонансной томографии: первые шагиhttps://orcid.org/0000-0003-1750-8970FateevK. M.ФатеевК. М.
Russian Federation

Konstantin M. Fateev, Medical рhysicist in radiation therapy department 

117997, Moscow, Samory Mashela st., 1

Фатеев Константин Михайлович, медицинский физик, отделение лучевой терапии 

117997, Москва, ГСП-7, ул. Саморы Машела, 1 

K.M.Fateev@gmail.comhttps://orcid.org/0000-0001-7317-7104TereshchenkoG. V.ТерещенкоГ. В.
Russian Federation
https://orcid.org/0000-0003-2843-9667BelyaevV. N.БеляевВ. Н.
Russian Federation
https://orcid.org/0000-0003-3976-8351SmorodinaM. N.СмородинаМ. Н.
Russian Federation
https://orcid.org/0000-0002-2537-6157NechesnyukA. V.НечеснюкА. В.
Russian Federation
Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, ImmunologyФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава РоссииNational Research Nuclear University MEPhIФГАОУ ВО «Национальный исследовательский ядерный университет «МИФИ»2409201817360652409201824092018Copyright ©; 2018, «D. Rogachev NMRCPHOI»Copyright ©; 2018, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России2018«D. Rogachev NMRCPHOI»ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава Россииhttps://creativecommons.org/licenses/by/4.0https://hemoncim.com/jour/article/view/192

Planning radiation therapy is a complex process that involves the use of modern three-dimensional diagnostic techniques - computed tomography (CT) and magnetic resonance imaging (MRI). To create a treatment plan, CT is currently used, which allows to collect data of the electron density of the irradiated volume and apply them to calculate the dose distribution. However, for many tumors MRI can more accurately determine their contours. The article shows a technique for obtaining pseudo-CT images for planning radiation therapy based on MRI without the use of CT. The study included 7 patients who had a diagnosis of «medulloblastoma», underwent MRI diagnostics with identical scanning parameters and CT scan before radiation therapy. The first steps of this technique show the promise of using exclusively MRI in the radiation therapy planning.

Планирование лучевой терапии – сложный процесс, который включает использование современных трехмерных диагностических методик – компьютерной томографии (КТ) и магнитнорезонансной томографии (МРТ). При создании лечебного плана обязательно используют КТ, которая позволяет собрать данные об электронной плотности облучаемого объема и применить их в расчетах дозного распределения. Более точно определить границы многих опухолей позволяет МРТ. В статье представлена методика получения псевдо-КТ-изображений для планирования лучевой терапии на основе МРТ без использования КТ. В исследование вошло 7 пациентов с диагнозом «медуллобластома», которые перед лучевой терапией проходили диагностику на МРТ с идентичными параметрами сканирования и КТ. Первые результаты, полученные при использовании данной методики, показывают перспективность применения исключительно МРТ при планировании лучевой терапии.

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