NCT05230576

Brief Summary

This study intends to build a model through deep learning that can automatically and accurately detect plaques, calculate the lumen stenosis rate and evaluate the stability of plaques based on the carotid transverse axis dynamic ultrasound images and contrast-enhanced ultrasound images, so as to comprehensively evaluate the possibility of carotid plaques. cardiovascular risk. The successful development of this study will automatically simulate and reproduce the whole process of carotid plaque assessment by clinical sonographers. Solve the problem of ultrasonic inspection equipment and experience dependence. It is expected to carry out large-scale population intelligent screening, providing new ideas for early prevention and treatment. Especially in medically underdeveloped remote areas and the lack of experienced sonographers, it has great practical value in clinical health care and can bring greater social and economic benefits.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
2,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2020

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2020

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

January 27, 2022

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 9, 2022

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2023

Completed
Last Updated

September 14, 2023

Status Verified

September 1, 2023

Enrollment Period

3.1 years

First QC Date

January 27, 2022

Last Update Submit

September 13, 2023

Conditions

Outcome Measures

Primary Outcomes (5)

  • AI assists junior radiologists to read images, and primary physicians read images independently

    Taking the reading results of senior sonographers as the gold standard, the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of AI-assisted reading and independent reading by junior physicians for carotid plaque-assisted diagnosis were tested. AUC is evaluated.

    through study completion, an average of 2 years

  • Assessing the performance of AI model

    Taking the reading results of senior sonographers as the gold standard, the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of AI independent reading. It was evaluated by the area under the receiver operating characteristic (ROC) curve (AUC).

    through study completion, an average of 2 years

  • AI estimates the lumen stenosis rate

    Taking the reading results of senior sonographers as the gold standard, AI can estimate the sensitivity, specificity, accuracy, positive predictive value and negative predictive value of lumen stenosis rate. It was evaluated by the area under the receiver operating characteristic (ROC) curve (AUC).

    through study completion, an average of 2 years

  • AI predicts plaque stability.

    Taking the reading results of senior sonographers as the gold standard, AI predicts the sensitivity, specificity, accuracy, positive predictive value and negative predictive value of plaque stability. It was evaluated by the area under the receiver operating characteristic (ROC) curve (AUC).

    through study completion, an average of 2 years

  • Plaque detection by AI model on videos acquired by different types of equipment.

    Taking the reading results of senior sonographers as the gold standard, AI detects plaque sensitivity, specificity, accuracy, positive predictive value, and negative predictive value on different ultrasound equipment. Assessed by the area under the receiver operating characteristic (ROC) curve (AUC).

    through study completion, an average of 2 years

Study Arms (2)

Deep learning training cohort

2/3 of the enrolled patients and their corresponding carotid artery dynamic scan images and expert diagnosis results were randomly selected as the training cohort for deep learning.

Diagnostic Test: Deep learning training cohort

Deep learning validation cohort

The carotid artery dynamic scan images and expert diagnosis results of the remaining 1/3 patients were used as a validation cohort to evaluate the overall diagnostic accuracy of the deep learning model.

Diagnostic Test: Deep learning validation cohort

Interventions

train the deep learning model

Deep learning training cohort

evaluate the model

Deep learning validation cohort

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Age≥18 years old, gender is not limited, with varying degrees of carotid atherosclerosis.

You may qualify if:

  • (1) Age≥18 years old, gender is not limited. (2) Patients who voluntarily participated in this study signed the informed consent.

You may not qualify if:

  • (1) Severe cerebrovascular disease, uncooperative patients, and those who cannot tolerate examination. (2) Wound dressings after neck surgery affects carotid artery ultrasonography. (3) The neck is short and thick, and the probe cannot be put down vertically.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Third Affiliated Hospital of Sun Yat-sen University

Guangzhou, Guangdong, China

Location

Related Publications (7)

  • Abbott AL, Paraskevas KI, Kakkos SK, Golledge J, Eckstein HH, Diaz-Sandoval LJ, Cao L, Fu Q, Wijeratne T, Leung TW, Montero-Baker M, Lee BC, Pircher S, Bosch M, Dennekamp M, Ringleb P. Systematic Review of Guidelines for the Management of Asymptomatic and Symptomatic Carotid Stenosis. Stroke. 2015 Nov;46(11):3288-301. doi: 10.1161/STROKEAHA.115.003390. Epub 2015 Oct 8.

    PMID: 26451020BACKGROUND
  • Nighoghossian N, Derex L, Douek P. The vulnerable carotid artery plaque: current imaging methods and new perspectives. Stroke. 2005 Dec;36(12):2764-72. doi: 10.1161/01.STR.0000190895.51934.43. Epub 2005 Nov 10.

    PMID: 16282537BACKGROUND
  • Saba L, Saam T, Jager HR, Yuan C, Hatsukami TS, Saloner D, Wasserman BA, Bonati LH, Wintermark M. Imaging biomarkers of vulnerable carotid plaques for stroke risk prediction and their potential clinical implications. Lancet Neurol. 2019 Jun;18(6):559-572. doi: 10.1016/S1474-4422(19)30035-3. Epub 2019 Apr 4.

    PMID: 30954372BACKGROUND
  • Rafailidis V, Charitanti A, Tegos T, Destanis E, Chryssogonidis I. Contrast-enhanced ultrasound of the carotid system: a review of the current literature. J Ultrasound. 2017 Feb 9;20(2):97-109. doi: 10.1007/s40477-017-0239-4. eCollection 2017 Jun.

    PMID: 28592999BACKGROUND
  • Deyama J, Nakamura T, Takishima I, Fujioka D, Kawabata K, Obata JE, Watanabe K, Watanabe Y, Saito Y, Mishina H, Kugiyama K. Contrast-enhanced ultrasound imaging of carotid plaque neovascularization is useful for identifying high-risk patients with coronary artery disease. Circ J. 2013;77(6):1499-507. doi: 10.1253/circj.cj-12-1529. Epub 2013 Mar 22.

    PMID: 23519900BACKGROUND
  • Varetto G, Gibello L, Castagno C, Quaglino S, Ripepi M, Benintende E, Gattuso A, Garneri P, Zan S, Capaldi G, Bertoldo U, Rispoli P. Use of Contrast-Enhanced Ultrasound in Carotid Atherosclerotic Disease: Limits and Perspectives. Biomed Res Int. 2015;2015:293163. doi: 10.1155/2015/293163. Epub 2015 Jun 21.

    PMID: 26180793BACKGROUND
  • Staub D, Patel MB, Tibrewala A, Ludden D, Johnson M, Espinosa P, Coll B, Jaeger KA, Feinstein SB. Vasa vasorum and plaque neovascularization on contrast-enhanced carotid ultrasound imaging correlates with cardiovascular disease and past cardiovascular events. Stroke. 2010 Jan;41(1):41-7. doi: 10.1161/STROKEAHA.109.560342. Epub 2009 Nov 12.

    PMID: 19910551BACKGROUND

MeSH Terms

Conditions

Carotid Artery Diseases

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Officials

  • Jia Liu

    Third Affiliated Hospital, Sun Yat-Sen University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Attending Physician, Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University

Study Record Dates

First Submitted

January 27, 2022

First Posted

February 9, 2022

Study Start

May 1, 2020

Primary Completion

June 1, 2023

Study Completion

June 1, 2023

Last Updated

September 14, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share

Locations