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Идёт набор NCT07702968

Low-Field MRI in Stroke Code Patients

Наблюдательное Acute Stroke MRI Imaging

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: Low-field MRI.
Кому может быть актуально
Состояния в реестре: Acute Stroke, MRI Imaging. 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
Нидерланды
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
Официальное название

Validation of Low Field MRI in Patients With Stroke Symptoms Less Than 12 Hours

Обзор

This study evaluates the accuracy and feasibility of a portable low-field MRI (Hyperfine) device in patients presenting to the emergency department with suspected acute stroke. All enrolled patients undergo standard clinical imaging (CT, CT angiography, CT perfusion) and additionally receive a low-field MRI scan. Low-field MRI findings are compared to routine CT imaging and final clinical diagnosis. The study aims to determine whether low-field MRI can reliably detect acute ischemic stroke (including lacunar and large vessel occlusion), hemorrhagic stroke, and stroke mimics in the acute setting. Secondary outcomes include feasibility measures such as scan time, completion rate, patient satisfaction, and adverse events.

Вмешательства

  • Устройство Low-field MRI
    Low-field MRI (Hyperfine Swoop, 0.064 Tesla) is performed once, in addition to routine clinical imaging (non-contrast CT, CT angiography, and CT perfusion as clinically indicated). The scan is acquired after routine imaging and after initial treatment decisions, during office hours, with the patient on their ED bed. Scan duration and any interruptions are recorded.

Первичные конечные точки

  • Diagnostic accuracy of low-field MRI for acute stroke detection [Срок оценки: At time of low-field MRI scan (within 12 hours of symptom onset)]
Вторичные конечные точки (2)
  • Adverse events during low-field MRI scanning [Срок оценки: During low-field MRI scan and up to 30 minutes thereafter]
  • Patient satisfaction with low-field MRI procedure [Срок оценки: Within 24 hours after low-field MRI scan.]

Критерии участия

Критерии включения

  • Age ≥ 18 years
  • Presentation with suspected acute stroke (stroke code activation by ambulance paramedics)
  • Symptom onset < 12 hours prior to presentation
  • Admission to the emergency department of the Leiden University Medical Center (LUMC) during office hours
  • Undergoing standard-of-care head CT imaging at the emergency department
  • Ability to provide informed consent (written or verbal in the acute setting, with deferred written consent if applicable)

Критерии исключения

  • Imminent death
  • Severe claustrophobia preventing MRI
  • Presence of MRI-incompatible implanted devices (e.g., pacemaker, cochlear implant, insulin pump)
  • Known intra-ocular metallic foreign body or intracranial metallic clip/device identified on admission CT
  • Pregnancy
  • Acute life-threatening or disabling condition requiring immediate intervention that precludes study procedures
  • Any study-related delay that could interfere with time-critical stroke treatments (intravenous thrombolysis or endovascular thrombectomy)

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

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения
Когортное

Центры проведения

Нидерланды · 1 центр
  • Leiden University Medical Center — Leiden

Публикации

  • Mazurek MH, Cahn BA, Yuen MM, Prabhat AM, Chavva IR, Shah JT, Crawford AL, Welch EB, Rothberg J, Sacolick L, Poole M, Wira C, Matouk CC, Ward A, Timario N, Leasure A, Beekman R, Peng TJ, Witsch J, Antonios JP, Falcone GJ, Gobeske KT, Petersen N, Schindler J, Sansing L, Gilmore EJ, Hwang DY, Kim JA, Malhotra A, Sze G, Rosen MS, Kimberly WT, Sheth KN. Portable, bedside, low-field magnetic resonance PMID 34433813
  • Sheth KN, Mazurek MH, Yuen MM, Cahn BA, Shah JT, Ward A, Kim JA, Gilmore EJ, Falcone GJ, Petersen N, Gobeske KT, Kaddouh F, Hwang DY, Schindler J, Sansing L, Matouk C, Rothberg J, Sze G, Siner J, Rosen MS, Spudich S, Kimberly WT. Assessment of Brain Injury Using Portable, Low-Field Magnetic Resonance Imaging at the Bedside of Critically Ill Patients. JAMA Neurol. 2020 Sep 8;78(1):41-7. doi: 10.100 PMID 32897296

Идентификаторы

NCT: NCT07702968 · NL87809.058.24

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗