Evaluation of the Correlation Between the Coronary Stenosis Degree With FFRCT and the Grade of Stable Angina Pectoris

June 16, 2016 updated by: Tan Song, Guiyang No.4 People's Hospital
Angina pectoris is the most common clinical manifestation of coronary heart disease（CHD）, which is the main feature of chest pain caused by transient myocardial ischemia. Chronic stable angina pectoris is the degree, frequency, nature and cause of angina pectoris in patients with no significant change in a few weeks. The disease incidence is complex, difficult to diagnosis and treatment, clinical should be combined with various inspection methods for diagnosis and differential diagnosis. Fractional flow reserve of computerized tomographic scanning (FFRCT ) allows computerized tomographic scanning（CT） to scan the determination of coronary blood flow and blood pressure in the heart at rest and hyperemia, but no need to additional check or drugs. This technique has been used for noninvasive fractional flow reserve (FFR) in the calculation, assuming normal artery, calculated by the ratio of the maximum blood flow and blood flow of coronary artery stenosis of an artery. Along with the development and progress of computational fluid dynamics, in the resting state by computed tomographic angiography of coronary artery(CCTA) image data based, simulation of coronary artery maximal hyperemia and according to the 3-dimensional model of the traditional method of reconstruction of coronary arterial tree and ventricular muscle structure, and in order to calculated coronary blood flow and pressure. FFRCT is a novel non-invasive examination method, using computed tomographic angiography of coronary artery image data can be calculated FFR, and preliminary study proved that it has a high degree of correlation with traumatic FFR. Therefore, this study aims to evaluate the correlation between the degree of coronary stenosis and the grading of angina pectoris by noninvasive means --FFRCT, in order to provide a new idea for the diagnosis and differential diagnosis of coronary heart disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: TAN Song, BSM
  • Phone Number: (0086)13885077912
  • Email: masuigy@163.com

Study Contact Backup

  • Name: TANG Tingting, MD
  • Phone Number: (0086)13984022759
  • Email: 728677395@qq.com

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

From 2015 to 2017 in our hospital for clinical diagnosis of coronary heart disease and computed tomographic angiography of coronary artery(CCTA) examination of patients.

Description

Inclusion Criteria:

  • After computed tomographic angiography of coronary artery (CCTA) for the diagnosis of coronary heart disease patients

Exclusion Criteria:

  • First, the patients with hematological diseases, infectious disease, end-stage renal disease and malignant tumor and other diseases. Second, the patients with acute myocardial infarction. Last, the percutaneous coronary intervention(PCI) and coronary artery bypass grafting (GABG) after the operation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
FFR≦0.8
FFR is a score of 0 to 1, FFR < 0.75, has proved almost always accompanied by myocardial ischemia.
Radiation: Computed tomographic angiography of coronary artery
FFR>0.8
FFR > 0.80 almost never associated with myocardial ischemia.
Radiation: Computed tomographic angiography of coronary artery

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
FFR Value
Time Frame: 1 years
1 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
CCS Class
Time Frame: 1 years
1 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Guiyang No.4 People's Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

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Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2017

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2019

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 13, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 15, 2016

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 16, 2016

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 20, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 16, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 42925078-2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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