A Multicenter Study on the Normal Reference Range and Clinical Significance of the Right Atrioventricular Coupling Index Assessed by Artificial Intelligence-Based Three-Dimensional Echocardiography

NCT ID: NCT07292896

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

2640 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-12-31

Study Completion Date

2026-12-31

Brief Summary

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This multicenter study aims to establish the normal reference range of the Right Atrioventricular Coupling Index (RACI) in healthy Chinese adults using AI-based 3DE technology. It will also analyze the correlation between RACI and physiological parameters such as age, gender, and body surface area. Additionally, the study will explore the variation characteristics of RACI in patients with pulmonary hypertension, heart failure, tricuspid regurgitation, and atrial septal defect, and evaluate the clinical value of RACI in disease diagnosis, differential diagnosis, and risk stratification.

Detailed Description

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Conditions

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Healthy Adults Pulmonary Hypertension Tricuspid Regurgitation Heart Failure Atrial Septal Defect

Keywords

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Right Atrioventricular Coupling Index 3D Echocardiography AI-assisted Imaging

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Healthy Adults Group

Healthy adults aged 18 to 79 years are planned to be stratified into 6 age groups: 18-29 years, 30-39 years, 40-49 years, 50-59 years, 60-69 years, and ≥70 years. Each age group will include 120 participants of each sex.

No interventions assigned to this group

Pulmonary Hypertension Group

This group comprises adults with a confirmed diagnosis of mean pulmonary artery pressure (mPAP) ≥20 mmHg via right heart catheterization, in accordance with the diagnostic criteria for pulmonary hypertension specified in the 2022 ESC/ERS Guidelines.

No interventions assigned to this group

Tricuspid Regurgitation Group

Adults with moderate or severe primary/secondary tricuspid regurgitation confirmed by echocardiography.

No interventions assigned to this group

Atrial Septal Defect Group

Adults with atrial septal defect confirmed by echocardiography or transesophageal echocardiography, including non-intervened patients, those who underwent closure/surgical correction, and stable patients \> 3 months after surgery.

No interventions assigned to this group

Heart Failure Group

Adults meeting the 2022 AHA/ACC/HFSA diagnostic criteria for heart failure are classified into three subgroups based on left ventricular ejection fraction (LVEF): heart failure with reduced ejection fraction (HFrEF, LVEF \< 40%), heart failure with mildly reduced ejection fraction (HFmrEF, LVEF 40-49%), and heart failure with preserved ejection fraction (HFpEF, LVEF ≥ 50%).

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Participants must meet all of the following criteria to be enrolled:

1. Of Han Chinese ethnicity
2. Aged 18-79 years
3. Normal blood pressure (\< 140/90 mmHg)
4. Normal fasting blood glucose
5. Normal blood lipid levels (triglycerides, total cholesterol, low-density lipoprotein, high-density lipoprotein)
6. Normal complete blood count results (hemoglobin concentration, white blood cell count, red blood cell count, platelet count)
7. Normal liver and renal function (alanine transaminase \< 2× upper limit of normal; normal creatinine and blood urea nitrogen)
8. Normal electrocardiogram results (occasional atrial premature beats may be enrolled at the investigator's discretion)
9. No structural heart disease and normal cardiac function confirmed by echocardiography


Patients must meet all of the following criteria to be enrolled:

1. Aged 18-79 years
2. Confirmed diagnosis via right heart catheterization: mean pulmonary arterial pressure (mPAP) ≥ 20 mmHg, in accordance with the 2022 ESC/ERS guidelines


Patients must meet all of the following criteria to be enrolled:

1. Aged 18-79 years
2. Meets the 2022 AHA/ACC/HFSA diagnostic criteria for heart failure


Patients must meet all of the following criteria to be enrolled:

1. Moderate or severe primary or secondary tricuspid regurgitation confirmed by echocardiography
2. Aged 18-79 years


Patients must meet all of the following criteria to be enrolled:

1. Secundum atrial septal defect confirmed by echocardiography or transesophageal echocardiography
2. Patients who have not undergone closure or surgical correction, or stable patients with \> 3 months postoperatively
3. Aged 18-79 years

Exclusion Criteria

Participants will be excluded if they meet any of the following criteria:

1. Clinically significant cardiac valve regurgitation (≥ mild severity)
2. Respiratory diseases: acute or chronic respiratory disorders
3. Endocrine diseases: thyroid disease, diabetes mellitus, hyperaldosteronism, pheochromocytoma, etc.
4. Abnormal liver function (alanine transaminase \> 2× upper limit of normal), abnormal renal function (elevated creatinine beyond normal range), or dyslipidemia (elevated triglycerides, total cholesterol, low-density lipoprotein, or high-density lipoprotein)
5. Other systemic diseases: anemia, malignancy, connective tissue disease, large artery/peripheral vascular diseases (aortic dilation, aortic dissection, coarctation of the aorta, Takayasu arteritis, atherosclerosis), etc.
6. Pregnant or lactating women
7. Professional athletes
8. Poor-quality ultrasound images that cannot support parameter measurement and analysis

Pulmonary Hypertension Group


Patients will be excluded if they meet any of the following criteria:

1. Unable to complete right heart catheterization or pressure-volume loop assessment
2. Complicated with significant left heart disease (left ventricular ejection fraction \[LVEF\] \< 50%, significant mitral valve disease)
3. Pericardial disease or arrhythmias (e.g., atrial fibrillation) that severely impair right heart function evaluation
4. Poor-quality images that prevent accurate measurement of right atrial or right ventricular parameters
5. Concurrent liver or renal disease
6. Concurrent malignancy
7. History of surgical procedures such as pulmonary endarterectomy or balloon pulmonary angioplasty

Heart Failure Group


Patients will be excluded if they meet any of the following criteria:

1.Complicated with significant valvular heart disease (e.g., severe mitral regurgitation, severe tricuspid regurgitation, etc.)

Tricuspid Regurgitation Group


Patients will be excluded if they meet any of the following criteria:

1. Pericardial disease or arrhythmias (persistent atrial fibrillation) that interfere with measurements
2. Congenital heart disease or residual lesions after surgical correction

Atrial Septal Defect Group


1.Complicated with other complex congenital heart diseases.
Minimum Eligible Age

18 Years

Maximum Eligible Age

79 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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First Hospital of China Medical University

OTHER

Sponsor Role lead

Responsible Party

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Chunyan Ma

Chief of Cardiovascular Ultrasound

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Chunyan Ma, MD

Role: PRINCIPAL_INVESTIGATOR

First Hospital of China Medical University

Locations

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Chongqing Liangjiang New Area Hospital of Traditional Chinese Medicine

Chongqing, Chongqing Municipality, China

Site Status

Shenzhen People's Hospital

Shenzhen, Guangdong, China

Site Status

Shijiazhuang People's Hospital

Shijiazhuang, Hebei, China

Site Status

The Third Affiliated Hospital of Hebei Medical University

Shijiazhuang, Hebei, China

Site Status

The First Affiliated Hospital of Harbin Medical University

Harbin, Heilongjiang, China

Site Status

The Fourth Affiliated Hospital of Harbin Medical University

Harbin, Heilongjiang, China

Site Status

Henan Provincial People's Hospital

Zhengzhou, Henan, China

Site Status

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, China

Site Status

Xiangyang No.1 Peoples Hospital

Xiangyang, Hubei, China

Site Status

The Second Affiliated Hospital of Jilin University

Changchun, Jilin, China

Site Status

Anshan Central Hospital

Anshan, Liaoning, China

Site Status

Ansteel Group General Hospita

Anshan, Liaoning, China

Site Status

Chaoyang Central Hospital

Chaoyang, Liaoning, China

Site Status

the Second Hospital of Dalian Medical University

Dalian, Liaoning, China

Site Status

Huludao Second People's Hospital

Huludao, Liaoning, China

Site Status

Liaohua Hospital

Liaoyang, Liaoning, China

Site Status

The First Hospital of China Medical University

Shenyang, Liaoning, China

Site Status

The First Affiliated Hospital of Xi'an Jiaotong University

Xi'an, Shaanxi, China

Site Status

The Second Affiliated Hospital of Shaanxi University of Chinese Medicine

Xianyang, Shaanxi, China

Site Status

The Affiliated Hospital of Qingdao University

Qingdao, Shandong, China

Site Status

Shanxi Provincial People's Hospital

Taiyuan, Shanxi, China

Site Status

West China Hospital,Sichuan University

Chengdu, Sichuan, China

Site Status

Beijing Chaoyang Hospital, Capital Medical University

Beijing, , China

Site Status

Shanghai Chest Hospital

Shanghai, , China

Site Status

Zhongshan Hospital, Fudan University, Shanghai

Shanghai, , China

Site Status

Countries

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China

Central Contacts

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Chunyan Ma, MD

Role: CONTACT

Phone: +86 13998816448

Email: [email protected]

Facility Contacts

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Yan Zhang

Role: primary

Xiaoqing Yang

Role: primary

Heping Deng

Role: primary

Hui Liu

Role: primary

Tianle Yu

Role: primary

Haohui Zhu, PhD

Role: primary

Yu Wang, Ph.D

Role: primary

Dongmei Lv

Role: primary

Yao Wang

Role: primary

Gang Du, Ph.D

Role: primary

Hong Zhou

Role: primary

Jun Wu

Role: primary

Xuan Wang

Role: primary

Shuangyan Liu

Role: primary

Chunyan Ma, MD

Role: primary

Chunyan Ma, MD

Role: backup

Shun Wang

Role: primary

Xiaoli Zhu

Role: primary

Weiqing Li

Role: primary

Yidan Li

Role: primary

fan li

Role: primary

Xianhong Shu

Role: primary

Other Identifiers

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3D-RACI-01

Identifier Type: -

Identifier Source: org_study_id