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An International Multicenter, Multivendor Evaluation of the Free-Running Framework for Cardiac Function (FAST-CMR)

2026년 5월 21일 업데이트: Matthias Stuber

Assessment and Validation of the Established Free-Running Framework for Cardiac Function by Magnetic Resonance Imaging (FAST-CMR): An International Multi-Center, Multi-Vendor Study at 1.5T

This project aims to evaluate a new cardiac MRI technique called the Free-Running Framework (FRF), which could simplify and accelerate the process of acquiring cardiac images. The investigators want to verify whether this method can provide functional heart measurements comparable to those obtained with traditional methods. More specifically, the goal of the study is to compare the measurements obtained with FRF to those obtained with standard sequences, to ensure they match and that this new approach can be reliably used in clinical practice. The FRF technique works differently from standard cardiac MRI. In standard exams, patients are asked to hold their breath several times and small electrodes (ECG) are used to monitor the heartbeat during the scan. These steps are needed to get clearer images of the heart as it moves. With FRF, these steps are no longer necessary: the scan is performed while patients' breath normally and without ECG monitoring. In addition, standard MRI takes multiple 2D slices of the heart, one after another. The FRF method instead captures a 3D image of the entire heart in one go, which can improve the consistency of the exam and reduce errors when doctors analyze the images later. This is all possible because the FRF method records data continuously and then organizes the images afterward based on how participants heart and breathing were moving during the exam. This helps the imager to get clear images of the heart, even without breath-holding or ECG monitoring. This project is aimed at individuals with heart disease who require cardiac MRI exams to monitor their health status (age ≥ 18 years) and are able to clearly understand the instructions provided by the research team. The investigators have already conducted small-scale technical and feasibility studies using FRF. These studies have shown that FRF is easy to use, faster than traditional methods, and provides image quality comparable to standard imaging techniques. The investigators now wish to evaluate its use in a clinical setting. More specifically, the investigators need to verify that FRF provides the same essential diagnostic information as standard techniques, so that it can be reliably used in future patient care. A maximum of 300 participants will be included in the investigation of this MRI technique between 2026 and 2031. This is a multi-center study, conducted internationally across 18 centers.

This project is being carried out in compliance with Swiss legislation. The investigators follow all internationally recognized guidelines. The competent ethics committee has reviewed and approved this project.

연구 개요

상태

아직 모집하지 않음

정황

상세 설명

Cardiovascular disease remains the leading cause of death in industrialized nations. While a range of diagnostic tools exists for cardiovascular disease detection and monitoring, magnetic resonance imaging (MRI) remains the only modality that enables a safe, non-invasive assessment of the heart without exposure to ionizing radiation. MRI allows for a comprehensive evaluation of cardiac anatomy, function, myocardial tissue characterization, and blood flow quantification, making it a powerful tool for cardiovascular diagnostics.

Despite strong clinical evidence supporting its utility, cardiac MRI (CMR) remains underutilized, primarily due to the length and complexity of a traditional CMR exam. Several factors contribute to the length and complexity of a standard CMR exam. First, a standard CMR protocol relies heavily on two-dimensional (2D) image acquisitions, each requiring manual slice planning by an experienced technologist-a process that is both time consuming and highly dependent on operator expertise. Second, traditional image acquisition requires electrocardiogram (ECG) triggering to synchronize with the cardiac cycle, requiring additional setup and potentially introducing errors if the ECG signal is suboptimal. Finally, most conventional sequences rely on repeated patient breath-holding to minimize respiratory motion artifacts, which can be particularly challenging for individuals with severe cardiovascular disease, congenital anomalies, or limited compliance. Even for highly skilled personnel, this process is timeconsuming and inefficient. Consequently, a significant portion of the patient's time in the scanner is spent on preparation and planning rather than actual image acquisition, leading to prolonged exam durations and increased healthcare costs.

Given these challenges, there is a strong need for simplified, automated, and time-efficient CMR acquisitions. In response to this challenge, the investigators research group has developed an innovative "free-running framework" (FRF)-a set of MRI methods that continuously acquire threedimensional (3D) image data across the entire cardiac cycle and throughout free breathing, irrespective of cardiac or respiratory motion. Unlike conventional CMR sequences that require separate, prospectively planned acquisitions for each imaging plane and time point, FRF employs continuous, self-navigated data acquisition. This eliminates the need for complex slice planning and enables retrospective reconstruction of cardiac motion, ensuring that imaging is both standardized and independent of user expertise. By leveraging advanced motion-resolved reconstruction algorithms developed by the investigators group, the investigators can derive both cardiac and respiratory motion from a single dataset, providing a fully automated, 3D whole-heart imaging approach.

Once diagnosed, patients with cardiac diseases often require lifelong monitoring and repeated imaging assessments to guide treatment decisions and evaluate disease progression. This makes a non-ionizing imaging modality like CMR admirable. Nonetheless, the prolonged scan durations and intricate manual planning associated with traditional CMR limit its accessibility and practical feasibility. By eliminating the need for slice planning and reducing scan complexity, FRF has the potential to significantly improve imaging for cardiac disease patients by:

  • Standardizing imaging: producing user-independent results robust to anatomical variations.
  • Reducing scan times: without compromising diagnostic information.
  • Improving accessibility: enabling easier adoption in centers with less experienced technologists.

The feasibility of FRF has been demonstrated in experimental, pre-clinical, and small observational clinical studies, with no observed adverse effects. This study aims to evaluate its clinical feasibility and efficiency in real-world cardiac disease patients across multiple cardiac institutions, serving as a precursor for larger validation studies and eventual clinical implementation. This study will provide the first systematic clinical evaluation of 3D FRF across multiple cardiac institutions in cardiac disease patients, assessing both its technical feasibility and potential workflow benefits in a real-world setting. In particular, this study will:

  • Evaluate whether diagnostic information from FRF matches or exceeds standard CMR.
  • Assess the efficiency gains and the impact of automated, self-navigated imaging on scan duration and patient comfort.

If successful, this study will lay the groundwork for future multi-center validation clinical trial studies and eventual clinical integration, addressing a critical gap in CMR accessibility and efficiency.

연구 유형

관찰

등록 (추정된)

300

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 연락처 백업

연구 장소

  • 남아프리카
    • Western Cape
      • Cape Town, Western Cape, 남아프리카, 7700
        • University of Cape Town
        • 연락하다:
  • 네덜란드
    • Limburg
      • Maastricht, Limburg, 네덜란드, 6229 HX
        • Maastricht University Medical Center
        • 연락하다:
  • 독일
    • North Rhine-Westphalia
      • Bonn, North Rhine-Westphalia, 독일, 53113
        • University of Bonn
        • 연락하다:
      • Cologne, North Rhine-Westphalia, 독일, 50931
        • Cologne University Medical Center
        • 연락하다:
    • State of Berlin
      • Berlin, State of Berlin, 독일, 10117
  • 미국
    • California
      • Los Angeles, California, 미국, 90095
        • University of California, Los Angeles
        • 연락하다:
    • Georgia
      • Atlanta, Georgia, 미국, 30322
        • Emory University
        • 연락하다:
    • Illinois
      • Chicago, Illinois, 미국, 60611
        • Ann & Robert H Lurie Children's Hospital of Chicago
        • 연락하다:
    • Massachusetts
      • Boston, Massachusetts, 미국, 02115
    • Minnesota
      • Rochester, Minnesota, 미국, 55902
        • Mayo Clinic
        • 연락하다:
    • Missouri
      • St Louis, Missouri, 미국, 63130
        • Washington University in St. Louis
        • 연락하다:
    • Ohio
      • Columbus, Ohio, 미국, 43210
        • Ohio State University
        • 연락하다:
    • Pennsylvania
      • Philadelphia, Pennsylvania, 미국, 19104
        • Children's Hospital of Philadelphia
        • 연락하다:
    • Texas
      • Dallas, Texas, 미국, 75390
  • 싱가포르
    • Singapore
      • Singapore, Singapore, 싱가포르, 119275
        • National University of Singapore
        • 연락하다:
  • 영국
    • London
      • London, London, 영국, WC2R2LS
        • King's College London
        • 연락하다:
  • 이탈리아
    • Lazio
      • Rome, Lazio, 이탈리아, 00168
        • Università Cattolica - Fondazione Policlinico Gemelli IRCCS
        • 연락하다:
  • 일본
    • Mie-ken
      • Tsu, Mie-ken, 일본, 514-8507
        • Mie University
        • 연락하다:
  • 콜롬비아
    • Capital District
      • Bogotá, Capital District, 콜롬비아, 111156
        • Fundacion Cardioinfantil-LaCardio
        • 연락하다:
  • 호주
    • Victoria
      • Melbourne, Victoria, 호주, 3010
        • University of Melbourne
        • 연락하다:

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 어린이
  • 성인
  • 고령자

건강한 자원 봉사자를 받아들입니다

아니

샘플링 방법

비확률 샘플

연구 인구

This study will prospectively include 300 patients (~15-20 per site) with known or suspected cardiac disease who are referred for a clinically indicated CMR scan as part of their routine clinical work-up.

설명

Inclusion Criteria:

  • Diagnosed with cardiac disease of any complexity and scheduled for a clinical cardiac MRI on a clinical 1.5T MRI scanner
  • Able to understand and provide written informed consent or, for minors, ability to provide assent with written consent from a parent/legal representative, per local law and site policy prior to the study
  • Ability to undergo MRI without contraindications
  • Agrees to be informed in the event of incidental findings

Exclusion Criteria:

  • Severe claustrophobia preventing MRI completion
  • Presence of non-MRI compatible implants (e.g., pacemakers, certain metallic implants)
  • Contraindications to the intravenous contrast agent
  • Movement disorders or inability to remain still during the scan

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

코호트 및 개입

그룹/코호트
Patients with congenital heart disease
FAST-CMR will evaluate the technique's performance in complex, heterogeneous anatomy.
Patients unable to perform breath-holding
including those with advanced heart failure, pulmonary hypertension, or chronic obstructive pulmonary disease (COPD), representing a subgroup where conventional breath-held CMR techniques are often suboptimal or not feasible.
Other cardiovascular disease patients who are able to perform breath-holding
This group represents the standard patient population for whom conventional CMR is currently optimized.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
mean paired difference (bias) in left ventricular ejection fraction (LVEF) between 5D FISS-FRF and conventional 2D cine CMR
기간: Baseline (during study MRI acquisition)
estimated with a two-sided 95% confidence interval within each pre-defined patient cohort. The study is designed to ensure that the half-width of this confidence interval does not exceed 1.25% LVEF per cohort.
Baseline (during study MRI acquisition)

2차 결과 측정

결과 측정
측정값 설명
기간
Scan Efficiency
기간: Baseline (during study MRI acquisition)
  • Sequence acquisition time: scanner-reported acquisition duration for 5D FISS-FRF and conventional 2D cine imaging. This will include the timing of the necessary localizers specific to the imaging plane for each acquisition mode.
  • Workflow time: elapsed time from initiation of cine planning to completion of cine acquisitions, including slice planning, patient instruction, rest between breath-holds, and repeated acquisitions when required.
Baseline (during study MRI acquisition)
Quantitative Image Quality
기간: Baseline (during study MRI acquisition)
o Contrast ratio and endocardial-to-blood-pool interface sharpness between 5D FISS-FRF and conventional 2D cine.
Baseline (during study MRI acquisition)
Qualitative Image Quality
기간: Baseline (during study MRI acquisition)
o Likert scale (0-4) consensus grading by ≥2 expert CMR readers blinded to images from both techniques.
Baseline (during study MRI acquisition)
Failure Rate
기간: Baseline (during study MRI acquisition)
o Percentage of non-diagnostic or excluded scans.
Baseline (during study MRI acquisition)
Anatomical Coverage
기간: Baseline (during study MRI acquisition)
o Extent of volumetric coverage of the entire heart and related great vessels.
Baseline (during study MRI acquisition)
Multiparametric Capability
기간: Baseline (during study MRI acquisition)
o Presence of additional diagnostic insights from respiratory motion tracking of FRF.
Baseline (during study MRI acquisition)
Clinical Acceptability of LVEF Measurements (±5% Threshold)
기간: Baseline (during study MRI acquisition)
o Exploratory analyses will assess whether observed agreement metrics are compatible with commonly used clinical acceptability thresholds (e.g., ±5% LVEF). These analyses are hypothesis-generating and intended to inform future confirmatory studies.
Baseline (during study MRI acquisition)
LV mass
기간: Baseline (during study MRI acquisition)
Comparison between 5D FISS-FRF and 2D conventional cine
Baseline (during study MRI acquisition)
Regional wall motion abnormalities
기간: Baseline (during study MRI acquisition)
assessed using a 4-point likert scale per AHA segment (normal, hypokinesia, akinesia, dyskinesia)
Baseline (during study MRI acquisition)
Left and right atrial volumes
기간: Baseline (during study MRI acquisition)
maximum and minimum volumes and total atrial emptying fraction derived from conventional 2D cine long-axis views compared to 5D FISS-FRF
Baseline (during study MRI acquisition)
Agreement of Automated Ventricular Ejection Fraction Measurements (LVEF, RVEF)
기간: Baseline (during study MRI acquisition)
Agreement of automatically post-processed ventricular ejection fraction measurements (LVEF, RVEF) derived from 5D FISS-FRF with (1) standard post-processing of 5D FISS-FRF and (2) standard post-processing of conventional 2D cine cardiac MRI. Agreement will be assessed using appropriate statistical metrics.
Baseline (during study MRI acquisition)
Agreement of Automated Ventricular Function Measurements (LVEDV, LVESV, LVSV, RVEDV, RVESV, RVSV)
기간: Baseline (during study MRI acquisition)
Agreement of automatically post-processed ventricular function metrics (LVEDV, LVESV, LVSV, RVEDV, RVESV, RVSV) derived from 5D FISS-FRF with (1) standard post-processing of 5D FISS-FRF and (2) standard post-processing of conventional 2D cine cardiac MRI. Agreement will be assessed using appropriate statistical metrics.
Baseline (during study MRI acquisition)
Feasibility of AI-Based Image Reconstruction
기간: Baseline (during study MRI acquisition)
Percentage of reconstructed datasets that are considered clinically usable based on predefined quality criteria.
Baseline (during study MRI acquisition)
Reconstruction Time
기간: Baseline (during study MRI acquisition)
Comparison of reconstruction time between AI-based reconstruction and standard compressed sensing methods.
Baseline (during study MRI acquisition)
Accuracy of Ventricular Ejection Fraction Measurements
기간: Baseline (during study MRI acquisition)
Comparison of left and right ventricular ejection fraction (LVEF, RVEF) between AI-based and standard reconstructions.
Baseline (during study MRI acquisition)
Accuracy of Ventricular Volume Measurements
기간: Baseline (during study MRI acquisition)
Comparison of left and right ventricular end-diastolic volume (EDV), end-systolic volume (ESV), and stroke volume (SV) between AI-based and standard reconstructions.
Baseline (during study MRI acquisition)
Accuracy of Left Ventricular Mass Measurements
기간: Baseline (during study MRI acquisition)
Comparison of left ventricular mass between AI-based and standard reconstructions.
Baseline (during study MRI acquisition)
Voxel-wise Image Similarity Between Reconstruction Methods
기간: Baseline (during study MRI acquisition)
Image similarity assessed using structural similarity index measure (SSIM), peak signal-to-noise ratio (PSNR), and root mean squared error (RMSE).
Baseline (during study MRI acquisition)
Quantitative Image Quality
기간: Baseline (during study MRI acquisition)
Contrast ratio and endocardial-to-blood-pool interface sharpness between reconstruction methods.
Baseline (during study MRI acquisition)
Qualitative Image Quality
기간: Baseline (during study MRI acquisition)
Likert scale (0-4) consensus grading by ≥2 expert CMR readers blinded to images from both reconstruction methods.
Baseline (during study MRI acquisition)

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

Matthias Stuber

협력자

Mayo Clinic
University of California, Los Angeles

수사관

  • 수석 연구원: Matthias Stuber, PhD, CHUV
  • 수석 연구원: Tim Leiner, MD, PhD, Mayo Clinic
  • 수석 연구원: Kim-Lien Nguyen, MD, University of California, Los Angeles

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

일반 간행물

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 6월 1일

기본 완료 (추정된)

2028년 1월 1일

연구 완료 (추정된)

2030년 9월 1일

연구 등록 날짜

최초 제출

2026년 2월 27일

QC 기준을 충족하는 최초 제출

2026년 5월 21일

처음 게시됨 (실제)

2026년 5월 29일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 5월 29일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 5월 21일

마지막으로 확인됨

2026년 4월 1일

추가 정보

이 연구와 관련된 용어

키워드

추가 관련 MeSH 약관

기타 연구 ID 번호

  • 2025-00923

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

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약물 개입

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CROs in Malta

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약물 개입

식이 보충제

스폰서 / 협력자

위치

구독하다