NCT07806890 · The Cleveland Clinic
Evaluation of 4D Intracardiac Echocardiography (ICE) During Structural Heart and Electrophysiology Procedures
(4D-ICE)
What this study is about
The purpose of this study is to evaluate the imaging performance and procedural safety of a prototype 4D ICE catheter during real-time intracardiac imaging and to optimize device imaging parameters, compared with current standard imaging modalities.
View original scientific description
The purpose of this study is to evaluate the imaging performance and procedural safety of a prototype 4D ICE catheter during real-time intracardiac imaging and to optimize device imaging parameters, compared with current standard imaging modalities. TEE is the current standard of care and will serve as the primary imaging modality for clinical guidance during the EP and Structural Heart Disease (SHD) procedures. In this research protocol, TEE is not being investigated. ICE will be used as an adjunct imaging modality for research data collection and workflow evaluation only. All procedures will be performed using commercially available, FDA-approved Watchman devices, and no investigational implantable devices will be used. The use of ICE in this study does not modify the approved therapeutic device indication, implantation technique, or standard clinical decision-making.
Interventions
DEVICE
4D ICE Adjunct Imaging
Use of investigational 4D ICE catheter for real-time intracardiac imaging during cardiac interventional procedures, performed adjunctively to standard-of-care TEE guidance.
Primary outcome measures
Feasibility of 4D ICE Imaging Performance
Time frame: During the Procedure
A composite score evaluating the overall technical and clinical adequacy of the 4D Intracardiac Echocardiography (ICE) catheter compared to standard-of-care imaging. The composite score is derived from three individual component assessments: Image Quality: Clarity, resolution, and artifact presence. Anatomical Visualization: Ability to clearly identify target cardiac structures. Procedural Guidance: Effectiveness of real-time images in guiding the procedure. Each component is graded by independent reviewers on a 5-point Likert scale (1=Inadequate, 2=Suboptimal, 3=Adequate, 4=Good, 5=Excellent). The final composite score is calculated as the sum of the three component scores, ranging from a minimum of 3 (worst performance) to a maximum of 15 (best performance).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Be aged above 18 for adult participants
- Be scheduled for a LAAO transcatheter procedure with or without concurrent procedures.
- Be able and willing to give informed consent
- (For concomitant cases only) Ablation will occur prior to LAAO implantation
Exclusion criteria
- Potential subjects must not include:
- Subjects who are currently enrolled in any other investigational clinical studies
- Subjects with any bleeding diathesis
- Subjects with known vascular abnormality rendering right heart catheterization from right or left femoral vein impossible.
- Subjects with known intracardiac thrombus
- Subjects with myocardial infarction within the prior two months
- Subjects with class IV angina or heart failure
- Subjects with sepsis or active infection
- Subjects with immune-deficiency or immune-compromised status
- Subjects with cerebral ischemic event in the prior six months
- Subjects with deep vein thrombosis
Where
- Cleveland, Ohio
Collaborators
Siemens Corporation, Corporate Technology
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Sep 8, 2026 · Source of record for eligibility and locations