NCT07229300

Brief Summary

The goal of this blinded randomized controlled trial is to assess whether AI-assisted TTE interpretation can improve cardiologist efficiency and reduce interpretation variability while preserving accuracy compared to current methods in adult patients whose historical echocardiogram images were performed. The main questions it aims to answer is to:

  1. 1.Assess overall transthoracic echocardiogram (TTE) interpretation accuracy of an AI-assisted workflow compared to standard cardiologist-only and sonographer-assisted workflows to hypothesize if AI-assisted workflow for echocardiography interpretation is non-inferior in accuracy compared to standard workflows.
  2. 2.Evaluate cardiologist interpretation time using an AI-assisted workflow compared to standard cardiologist-only and sonographer-assisted workflows to determine if an AI-assisted workflow will result in a decrease in interpretation time compared to the cardiologist-only workflow.
  3. 3.To compare interpretation consistency and reliability compared to historical reports as well as consensus reports of all finalized cardiologist reports.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,200

participants targeted

Target at P75+ for not_applicable

Timeline
1mo left

Started Nov 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress89%
Nov 2025Jun 2026

Study Start

First participant enrolled

November 1, 2025

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

November 12, 2025

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 14, 2025

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2026

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Expected
Last Updated

November 14, 2025

Status Verified

November 1, 2025

Enrollment Period

4 months

First QC Date

November 12, 2025

Last Update Submit

November 13, 2025

Conditions

Keywords

Echocardiography Interpretation

Outcome Measures

Primary Outcomes (1)

  • Accuracy of AI-Assisted Echocardiogram Interpretation Compared to Standard Workflows.

    The accuracy rate is defined as the proportion of transthoracic echocardiogram (TTE) studies for which the final cardiologist interpretation is not significantly different from the preliminary interpretation. We will assess the accuracy rate in the AI-assisted arm for non-inferiority versus the pooled accuracy rate across both the sonographer-assisted and cardiologist-only arms. The investigators will measure the proportion of TTE studies for which the final cardiologist report is substantially different from the preliminary report (e.g., the rate of substantial change). We define a TTE report to be substantially different from another TTE interpretation if any of its key elements are substantially different (LVEF, right ventriuclar function, chamber size, valvular regurgitation severity, valvular stenosis severity, and right ventricular systolic pressure).

    6 months

Secondary Outcomes (7)

  • Secondary Measures of Accuracy (Superiority Analyses)

    6 months

  • Accuracy Compared with Historical Cardiologist Interpretations

    6 months

  • Accuracy Compared with Consensus Cardiologist Interpretations

    6 months

  • Evaluation requiring two-grade change in valve disease severity as substantial change

    6 months

  • Cardiologist Overread Time (Efficiency)

    6 months

  • +2 more secondary outcomes

Study Arms (3)

AI-Assisted Interpretation

ACTIVE COMPARATOR

In AI-prelim arm, AI provides the preliminary interpretation which is finalized by a blinded cardiologist.

Other: AI-Assisted Echocardiogram Interpretation

Sonographer-Assisted Interpretation

ACTIVE COMPARATOR

In Sonographer-prelim arm, sonographer provides the preliminary interpretation which is finalized by a blinded cardiologist.

Other: Sonographer-Assisted Echocardiogram Interpretation

Cardiologist-Only Interpretation

ACTIVE COMPARATOR

In cardiologist-prelim arm, cardiology provides the preliminary interpretation which is finalized by a blinded separate cardiologist.

Other: Cardiologist-Only Echocardiogram Interpretation

Interventions

Echocardiogram studies are pre-interpreted by the AI software and finalized by a blinded cardiologist.

AI-Assisted Interpretation

(Standard of Care 1): Echocardiogram studies are pre-interpreted by a sonographer and finalized by a blinded cardiologist.

Sonographer-Assisted Interpretation

(Standard of Care 2): Echocardiogram studies are interpreted solely by two cardiologists (one provides a preliminary interpretation another provides a blinded final interpretation).

Cardiologist-Only Interpretation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥ 18 years of age
  • Comprehensive transthoracic echocardiogram study performed a KPNC Medical Center.

You may not qualify if:

  • Known Congenital heart disease study
  • Known Ventricular assist device
  • Limited transthoracic echocardiogram study
  • Transesophageal echocardiogram study
  • Stress echocardiogram study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kaiser Permanente Northern California Division of Research

Pleasanton, California, 94588, United States

Location

Study Officials

  • David Ouyang

    Kaiser Permanente

    PRINCIPAL INVESTIGATOR
  • Keane K Lee

    Kaiser Permanente

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 12, 2025

First Posted

November 14, 2025

Study Start

November 1, 2025

Primary Completion

March 1, 2026

Study Completion (Estimated)

June 1, 2026

Last Updated

November 14, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will share
Shared Documents
STUDY PROTOCOL, SAP

Locations