ojrdrtОнкологический журнал: лучевая диагностика, лучевая терапияJournal of oncology: diagnostic radiology and radiotherapy2587-75932713-167XНЕКОММЕРЧЕСКОЕ ПАРТНЕРСТВО «ОБЩЕСТВО ИНТЕРВЕНЦИОННЫХ ОНКОРАДИОЛОГОВ»10.37174/2587-7593-2022-5-4-43-53ojrdrt-264Research ArticleЛУЧЕВАЯ ДИАГНОСТИКАDIAGNOSTIC RADIOLOGYВозможности диффузионно-взвешенной МРТ в уточнении степени злокачественности рецидивных забрюшинных липосаркомPossibilities of Diffusion-Weighted MRI in Clarification of the Degree of Malignance of Recurrent Retroperitoneal Liposarcomashttps://orcid.org/0000-0002-1563-0983КолобановаЕ. С.KolobanovaE. S.

Колобанова Евгения Сергеевна — врач-рентгенолог, н.с. НИИ КиЭР 

115478 Москва, Каширское шоссе, 24

115478, Moscow, Kashirskoye Highway, 24

e.kolobanova@ronc.ruhttps://orcid.org/0000-0003-1779-003XМедведеваБ. М.MedvedevaB. M.

Медведева Бэла Михайловна — д.м.н., в.н.с., заведующая рентгенодиагностическим отделением НИИ КиЭР

115478 Москва, Каширское шоссе, 24

115478, Moscow, Kashirskoye Highway, 24

m-diagnostica@yandex.ruhttps://orcid.org/0000-0002-1295-4106ЛаптеваМ. Г.LaptevaM. G.

Лаптева Мария Георгиевна — врач-рентгенолог НИИ КиЭР, к.м.н.SPINкод: 2395-3219AuthorID: 1007893

115478 Москва, Каширское шоссе, 24

115478, Moscow, Kashirskoye Highway, 24

mglapteva@inbox.ruНациональный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава РоссииРоссияN.N. Blokhin National Medical Research Center of OncologyRussian Federation202214122022544353Copyright © Колобанова Е.С., Медведева Б.М., Лаптева М.Г., 20222022Колобанова Е.С., Медведева Б.М., Лаптева М.Г.Kolobanova E.S., Medvedeva B.M., Lapteva M.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.oncoradjournal.ru/jour/article/view/264

Цель: Изучение возможностей ДВ-МРТ в дифференциальной диагностике рецидивных забрюшинных высокодифференцированных и дедифференцированных липосарком (ВЛС и ДЛС соответственно).Материал и методы: В основу работы положены данные ретроспективного исследования 36 пациентов, ранее прооперированных по поводу забрюшинных ВЛС (n = 27) и ДЛС (n = 9). Всем пациентам выполнялась МРТ органов брюшной полости и малого таза без внутривенного контрастирования с дальнейшей оценкой размеров, формы, контуров и структуры. При анализе ДВ-МРТ и ИКД-карт оценивались мелкие мягкотканные узлы.Результаты: Морфологические исследования были выполнены всем пациентам. Результаты качественного анализа показали статистические значимые различия в дифференциальной диагностике рецидивов ВЛС от ДЛС в присутствии перегородок и псевдокапсулы (p  = 0,0032 и p  = 0,0028 соответственно). Результаты исследования продемонстрировали различия значения ИКД в солидном компоненте рецидивных опухолей ВЛС и ДЛС: медиана значений ИКД в группе ВЛС была выше (1960×10–6 мм2/с), чем в группе ДЛС (1031×10–6 мм2/с). Чувствительность данного признака в дифференциальной диагностике ВЛС от ДЛС составила 87,5 %, специфичность — 70 %.

Purpose: The aim of our study was to study the possibilities of DW-MRI in the differential diagnosis of recurrent retroperitoneal highly differentiated and dedifferentiated liposarcomas (WLS and DLS respectively).Material and methods: The study is based on the data of a retrospective study of 36 patients who underwent surgery on for retroperitoneal highly differentiated (n = 27) and dedifferentiated liposarcomas (n = 9). All patients received MRI of the abdominal cavity and pelvis without intravenous contrast enhancement with further assessment of size, shape, contours and structure. When analyzing DW-MRI and ADC maps, small soft tissue nodes were evaluated.Results: Morphological studies were performed in all patients. The results of the qualitative analysis showed statistically significant differences in the differential diagnosis of WLS recurrences from DPS in the presence of septa and pseudocapsule (p = 0.0032 and p = 0.0028, respectively). The results of the study demonstrated differences in the ADC values in the solid component of recurrent tumors of WLS and DLS: the median ADC values in the WLS group were higher (1960×10–6 mm2/s) than in the DLS group (1031×10–6 mm2/s). The sensitivity of this sign in the differential diagnosis of WLS from DLS was 87.5 %, the specificity was 70 %.

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The authors declare that there are no conflicts of interest present.