emcardioНеотложная кардиология и кардиоваскулярные рискиEmergency Cardiology and Cardiovascular Risks journal2616-633XБелорусский государственный медицинский университет10.51922/2616-633X.2025.9.2.2580emcardio-317Research ArticleОригинальные научные публикацииOriginal Scientific ResearchУльтразвуковая оценка сократимости грудного отдела аорты методом 2D speckle trackingUltrasonic assessment of thoracic aortic contractility using 2D speckle trackingВалюженичЯ. И.ValyuzenichYa. I.

Минск

Minsk

РудойА. С.RudoyA. S.

Минск

Minsk

andrewrudoj@gmail.comХотькоН. Г.KhatskoN. G.

Минск

Minsk

УО «Белорусский государственный медицинский университет»БеларусьBelarusian State Medical UniversityBelarusГУ «Республиканский научно-практический центр «Кардиология»БеларусьRepublican Scientific and Practical Center “Cardiology”BelarusГУ «432 ордена Красной Звезды главный военный клинический медицинский центр Вооруженных Сил Республики Беларусь»БеларусьMain Military Clinical Medical Center of the Armed Forces of the Republic of BelarusBelarus2025250120269225802585Copyright © Валюженич Я.И., Рудой А.С., Хотько Н.Г., 20262026Валюженич Я.И., Рудой А.С., Хотько Н.Г.Valyuzenich Y.I., Rudoy A.S., Khatsko N.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://emcardio.bsmu.by/jour/article/view/317Цель

Цель. Оценить применимость двумерной спекл трекинг эхокардиографии (2D STE) для количественной оценки глобальной циркулярной деформации аорты (GCSao) и изучить внутриоператорскую и межоператорскую воспроизводимость измерений, а также диагностическую ценность показателя у пациентов с расширением/аневризмой грудного отдела аорты по сравнению со здоровыми добровольцами.

Методы

Методы. В исследование включены 51 здоровый доброволец (возраст 21 [20;23] лет) и 13 пациентов с диаметром аорты > 45 мм (возраст 48 [36; 49] лет). Всем выполняли стандартную трансторакальную эхокардиографию (Vivid E90, датчик M5SC D, 1,5–4,5 МГц) с записью DICOM петель и последующим офлайн анализом в EchoPAC PC v201. GCSao (%) рассчитывали по предложенной ранее методике. Два эксперта (Э1 – разработчик методики; Э2 – врач функциональной диагностики, стаж 10 лет) выполнили независимые измерения с повтором через 2 недели. Воспроизводимость оценивали с помощью коэффициента внутриклассовой корреляции, методики Блэнда–Альтмана. Сравнение групп – U критерий Манна–Уитни.

Результаты

Результаты. GCSao у пациентов с расширением/аневризмой был статистически меньше, чем у добровольцев (−5,31 [7,56; 3,01] % против−8,79 [10,18; 6,40] %; U = 168; p = 0,005). Внутриоператорская воспроизводимость: ICC = 0,915 (Э1) и 0,913 (Э2) – высокая. Межоператорская: ICC = 0,882 (первое измерение) и 0,897 (второе) – хорошая/высокая. По Блэнду–Альтману средняя разница близка к 0, границы согласия узкие; единичные выбросы связаны с начальным этапом освоения методики.

Заключение

Заключение. 2D STE позволяет воспроизводимо измерять GCSao и выявлять снижение деформации у пациентов с расширением/аневризмой грудной аорты. Методика перспективна для стратификации риска и мониторинга; необходимы исследования прогностических порогов и валидация в сравнении с МРТ.

Aim

Aim. To evaluate the applicability of two-dimensional speckle tracking echocardiography (2D STE) for quantitative assessment of global aortic circumferential strain (GCSao) and to study the intraand inter-operator reproducibility of measurements, as well as the diagnostic value of this indicator in patients with thoracic aortic dilation/aneurysm compared with healthy volunteers.

Methods

Methods. The study included 51 healthy volunteers (aged 21 [20; 23] years) and 13 patients with an aortic diameter > 45 mm (aged 48 [36; 49] years). All subjects underwent standard transthoracic echocardiography (Vivid E90, M5SC D transducer, 1.5–4.5 MHz) with DICOM loop recording and subsequent offline analysis in EchoPAC PC v201. GCSao (%) was calculated using a previously proposed method. Two experts (E1 – the developer of the method; E2 – a physician specializing in functional diagnostics with 10-year work experience) performed independent measurements and repeated them 2 weeks later. Reproducibility was assessed using the intraclass correlation coefficient, the Bland–Altman test. Group comparisons were performed using the Mann–Whitney U test.

Results

Results. GCSao in patients with dilation/aneurysm was statistically lower than in volunteers (−5.31 [7.56; 3.01] % versus −8.79 [10.18; 6.40] %; U = 168; p = 0.005). Intra-operator reproducibility: ICC = 0.915 (E1) and 0.913 (E2) – high. Inter-operator reproducibility: ICC = 0.882 (first measurement) and 0.897 (second) – good/high. According to Bland-Altman, the mean difference is close to 0, the limits of agreement are narrow; isolated outliers are associated with the initial stage of mastering the technique.

Conclusion

Conclusion. 2D STE allows for reproducible measurement of GCSao and detection of strain reduction in patients with thoracic aortic dilation/aneurysm. The technique is promising for risk stratification and monitoring; studies of prognostic thresholds and validation against MRI are needed.

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