CT Scan for Atrial Fibrillation

(ELATE-AF Trial)

Age: 18+
Sex: Any
Trial Phase: Academic
Sponsor: Northwell Health
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This study aims to investigate whether a quick, additional CT scan of the heart, performed immediately after a standard CT scan for pulmonary embolism, can effectively detect blood clots in the left atrial appendage (LAA) in patients with atrial fibrillation. Detecting these clots is crucial before certain heart procedures to prevent stroke. Currently, a different, more involved procedure (Transesophageal Echocardiography - TEE) is often used. This study will assess if this additional CT scan is feasible, meaning if it can provide clear enough images to identify LAA clots without needing more contrast dye. The study will involve 60 patients, half receiving an "ungated" CT scan and the other half a "gated" CT scan (timed with their heart rhythm). The results of these scans will not be used for immediate patient care during the study, but rather to evaluate the CT scan technique itself. There is no direct benefit to participants, but the information gained could lead to faster diagnosis and reduced unnecessary testing for future patients.

Are You a Good Fit for This Trial?

This trial is for adults in the emergency department with atrial fibrillation who are already getting a CT scan to check for a lung blood clot. There are no detailed inclusion or exclusion criteria listed, but participants must be able to undergo an extra heart CT scan.

Inclusion Criteria

Room air oxygen saturation above 92%
I am over 18, need a CT scan for a lung clot, and have atrial fibrillation now.
Systolic blood pressure above 100 mm Hg
See 1 more

Exclusion Criteria

I am unable to follow simple instructions.
Non-English-speaking patients
Northwell Health Employees
See 6 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

1-2 weeks

CT Scan Procedure

Participants undergo a quick, additional CT scan of the heart immediately after a standard CT scan for pulmonary embolism

1 day
1 visit (in-person)

Data Analysis

The results of the CT scans are analyzed to evaluate the technique's feasibility and diagnostic accuracy

1 year

Follow-up

Participants are monitored for any adverse effects and the study outcomes are assessed

4 weeks

What Are the Treatments Tested in This Trial?

Trial Overview

The study compares two types of quick heart CT scans—one timed with the heartbeat (gated) and one not (ungated)—done right after a standard chest CT. The goal is to see if these scans can reliably spot clots in the left atrial appendage.

How Is the Trial Designed?

2

Treatment groups

Experimental Treatment

Group I: Delayed Un-gated CT Scan ArmExperimental Treatment1 Intervention
Group II: Delayed Gated CT Scan ArmExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Northwell Health

Lead Sponsor

Trials
481
Recruited
470,000+

Canon Medical Systems, USA

Industry Sponsor

Trials
14
Recruited
1,300+