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Идёт набор NCT04645628

Optimization of the Acquisition Sequence to Improve the Quality and Comfort of Magnetic Resonance Imaging Exam

Без фазы С лечением Healthy Subjects Patient Performing an MRI Examination

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
В протоколе указаны: MRI examination.
Кому может быть актуально
Состояния в реестре: Healthy Subjects, Patient Performing an MRI Examination. Базовые параметры: от 18 лет · Все.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
Франция
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

Обзор

The purpose of this study is to evaluate the optimization of MRI acquisition sequences.

Вмешательства

  • Другое MRI examination
    All subjects (healthy subjects and patients) will have an MRI examination with optimized sequences

Первичные конечные точки

  • Image quality based on standard imaging quality criteria. [Срок оценки: 6 months after the last inclusion]
Вторичные конечные точки (7)
  • Comparison of the Signal to Noise Ratio obtained by the optimized MRI sequence and the reference situation (standard sequence). [Срок оценки: 6 months after the last inclusion]
  • Comparison of the Contrast to Noise Ratio obtained by the optimized MRI sequence and the reference situation (standard sequence). [Срок оценки: 6 months after the last inclusion]
  • Comparison of the acquisition time obtained with the optimized MRI sequence and the reference situation (standard sequence). [Срок оценки: 6 months after the last inclusion]
  • Comparison of blurring and artefacts obtained by the optimized MRI sequence and the reference situation (standard sequence). [Срок оценки: 6 months after the last inclusion]
  • Comparison of the spatial resolution obtained by the optimized MRI sequence and the reference situation (standard sequence). [Срок оценки: 6 months after the last inclusion]
  • Qualification of the MRI acquisition for a clinical study. [Срок оценки: 6 months after the inclusion]
  • Evaluation of intra-subject reproducibility on the same MRI and on two MRIs. [Срок оценки: 6 months after the last inclusion]

Критерии участия

Inclusion Criteria for all subjects :

  • to be over 18 year-old,
  • to be able to understand the instructions given,
  • to be enrolled in a social security plan,
  • to have underwent a pre-inclusion medical examination,
  • to give a written consent.

Inclusion Criteria especially for Patients :

  • to perform a MRI examination of the head, neck, spine, thorax, abdomen, pelvis, retroperitoneum, lower limbs, upper limbs or whole body during clinical follow-up care.

Exclusion Criteria for all subjects :

  • any contraindication to MR examination (active medical device, ferromagnetic foreign body, pregnancy, morbid obesity, claustrophobia, … ),
  • subject under a measure of legal protection.

Exclusion Criteria especially for Healthy Subjects :

  • to have a pathology in the anatomical area to be imaged
  • to be employed by the CHRU of Nancy or having the slightest link of subordination with the CHRU of Nancy.

Exclusion Criteria especially for Patients :

  • to have a limited MRI examination time due to a sensitive clinical situation (sedation, unstable hemodynamic state, postoperative).

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение
Не применимо
Модель
Одна группа
Маскирование
Открытое
Основная цель
Другое

Центры проведения

Франция · 1 центр
  • CHRU de Nancy — Nancy

Публикации

  • He Z, Soullie P, Lefebvre P, Ambarki K, Felblinger J, Odille F. Changes of in vivo electrical conductivity in the brain and torso related to age, fat fraction and sex using MRI. Sci Rep. 2024 Jul 12;14(1):16109. doi: 10.1038/s41598-024-67014-9. PMID 38997324
  • Caron B, Laurent V, Odille F, Danese S, Hossu G, Peyrin-Biroulet L. New magnetic resonance imaging sequences for fibrosis assessment in Crohn's disease: a pilot study. Scand J Gastroenterol. 2022 Dec;57(12):1450-1453. doi: 10.1080/00365521.2022.2094727. Epub 2022 Sep 29. PMID 36173349
  • Boubaker F, Lane JI, Puel U, Drouot G, Witte RJ, Ambarki K, Gondim-Teixeira PA, Blum A, Parietti-Winkler C, Vallee JN, Gillet R, Eliezer M. High-Resolution 3T MRI of the Membranous Labyrinth Using Deep Learning Reconstruction. AJNR Am J Neuroradiol. 2026 Mar 4;47(3):723-729. doi: 10.3174/ajnr.A8989. PMID 40876943
  • Gillet R, Boubaker F, Clara M, Ambarki K, Stemmer A, Drouot G, Gillet P, Gondim Teixeira PA, Blum A. Optimizing knee MRI: 3D proton density turbo spin echo nDixon sequence vs. 2D high-resolution turbo spin echo in half the acquisition time. Eur J Radiol. 2026 Feb;195:112552. doi: 10.1016/j.ejrad.2025.112552. Epub 2025 Nov 19. PMID 41285050
  • Wary P, Hossu G, Ambarki K, Nickel D, Arberet S, Oster J, Orry X, Laurent V. Deep learning HASTE sequence compared with T2-weighted BLADE sequence for liver MRI at 3 Tesla: a qualitative and quantitative prospective study. Eur Radiol. 2023 Oct;33(10):6817-6827. doi: 10.1007/s00330-023-09693-y. Epub 2023 May 16. PMID 37188883
  • Paillart G, He Z, Romero G, Ferry P, Ambarki K, Soullie P, Felblinger J, Odille F. Improved Radiofrequency Safety Modelling in MRI Using In Vivo Measurements of Brain Conductivity. NMR Biomed. 2026 Aug;39(8):e70335. doi: 10.1002/nbm.70335. PMID 42338094

Идентификаторы

NCT: NCT04645628 · 2020-A01969-30

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗