- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02308475
Myocardial Stress Perfusion Computed Tomography in the Evaluation of Patients With Acute Chest Pain Using a Novel 3rd Generation Dual-source CT System
June 4, 2018 updated by: U. Joseph Schoepf, MD, Medical University of South Carolina
To assess the ability of a novel 3rd generation dual-source CT system to demonstrate myocardial perfusion in a cohort of patients presenting to the Chest Pain Center with acute chest pain.
Study Overview
Detailed Description
The investigators will assess the latest generation of CT scanner for heart disease detection.
On this new machine the investigators will analyse the ability of the machine to show the delivery of blood to the heart muscle.
Results will be compared with the results from the gold standard test for myocardial perfusion imaging, which is an imaging test that shows the blood supply to the heart muscle.
Further analyses will record the amount of radiation, which is how the CT machine acquires images, and compare the amount of radiation necessary to produce images to previous CT systems.
With this new CT system there should be reductions in the amount of radiation dose compared to previous systems.
Study Type
Interventional
Enrollment (Actual)
2
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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South Carolina
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Charleston, South Carolina, United States, 29425
- Medical University of South Carolina
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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
Ages Eligible for Study
18 years to 85 years (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Subject must present with symptoms of acute but atypical or recurrent chest pain.
- Subject must have been referred for cardiac CT angiography OR subject must have undergone clinically indicated SPECT with positive or equivocal findings OR subject must have undergone clinically indicated SPECT with prior cardiac CT angiography that showed moderate or severe stenosis.
- Subject must be 18-85 years of age.
- Subject must provide written informed consent prior to any study-related procedures being conducted.
- Subject must be willing to comply with all clinical study procedures.
Exclusion Criteria:
- Subject is a pregnant or nursing female.
- Subject has severe asthma or COPD requiring frequent inhaler use.
- Subject has prior diagnosis of obstructive CAD that has not been revascularized.
- Subject with implanted rhythm devices (pacemaker, defibrillator).
- Subject has significant arrhythmia.
- Subject has high grade heart block.
- Subject has resting heart rate < 45 bpm, systolic blood pressure <90 mm Hg, or has consumed caffeine within the last 12 hours.
- Subject has an acute psychiatric disorder.
- Subject is unwilling to comply with the requirements of the protocol.
- Subject has previously entered this study.
- Subject has an allergy against iodinated contrast or pharmaceutical stressors used in this study.
- Subject suffers from claustrophobia.
- Subject has impaired renal function (creatinine > 1.5 mg/dl).
- Subject is in unstable condition.
- ST-elevations, new transient ST changes greater than 0.05mV or T-wave inversions with symptoms.
- Subject cannot safely be administered Lexiscan per prescribing information as as determined by investigator.
- Subject has received interventional (PCI, stenting) or surgical (CABG) treatment that may alter the cardiac condition regarding myocardial perfusion status and/or stenosis degree between cardiac CTA, SPECT, and/or CT stress perfusion studies.
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
- Primary Purpose: DIAGNOSTIC
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Myocardial Stress CT Perfusion
Dynamic volume CT myocardial perfusion using the experimental scanner (Force, Siemens), applying the "dynamic shuttle" mode will be used to rapidly cover the entire cardiac anatomy during infusion of a contrast medium bolus for monitoring bolus passage through the left ventricular myocardium.
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Dynamic CT perfusion of the heart
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic Accuracy of Dynamic Perfusion CT
Time Frame: 1 Day
|
The diagnostic accuracy of dynamic perfusion CT of the heart for evaluation of perfusion, viability and function during stress and rest will be compared with SPECT myocardial perfusion imaging using p-values for comparison of reader specific values, calculated by means of the McNemar test.
|
1 Day
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
CTMP/SPECT MPI Disagreement
Time Frame: 1 Day
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Evaluate the accuracy of CT myocardial perfusion and SPECT using a stress/rest and delayed enhancement MRI examination as gold-standard by means of Kappa analysis
|
1 Day
|
Radiation Dose
Time Frame: 1 Day
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Assess the radiation dose (in mGy) delivered with the myocardial perfusion CT comparing the results with those obtained at SPECT.
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1 Day
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
December 1, 2014
Primary Completion (ACTUAL)
July 6, 2015
Study Completion (ACTUAL)
July 6, 2015
Study Registration Dates
First Submitted
November 21, 2014
First Submitted That Met QC Criteria
December 3, 2014
First Posted (ESTIMATE)
December 4, 2014
Study Record Updates
Last Update Posted (ACTUAL)
July 6, 2018
Last Update Submitted That Met QC Criteria
June 4, 2018
Last Verified
June 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Pro31584
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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