Coronary CT Angiography Using a Novel 3rd Generation Dual-Source CT System

Not Applicable

Completed

• Conditions: Coronary Artery Disease
• Interventions: Procedure: Coronary CT angiography on SOMATOM Force; Procedure: Previous coronary CT angiography on 2nd generation CT scanner

• Registration Number: NCT02218060
• Lead Sponsor: Medical University of South Carolina

Brief Summary

Coronary CT angiography is used to examine the coronary arteries in a non-invasive way when a patient is suspected of having coronary artery disease. The test, however, requires relatively high levels of radiation, which have been linked to DNA damage and cancer, and the use of contrast material, which can affect kidney function. The SOMATOM Force, a new third-generation CT scanner manufactured by Siemens, was recently installed at MUSC and holds the potential to obtain quality images while also reducing radiation dose and contrast material. This study aims to test the diagnostic ability of the SOMATOM Force in detecting coronary artery disease and also see if radiation dose and contrast material are reduced compared to the previous 2nd generation scanners. It is suspected that the Force will provide clinical quality images while decreasing radiation dose and contrast material required.

Detailed Description

Not available

Study Timeline

• Study Start: 2014-01
• Study First Submitted: 2014-08-14
• Study First Submitted QC: 2014-08-14
• Study First Posted: 2014-08-15
• Primary Completion: 2017-11
• Study Completion: 2017-11
• Status Verified: 2018-04
• Last Update Submitted: 2018-04-30
• Last Update Posted: 2018-05-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 46

Inclusion Criteria

• Subject must be between 18-90 years of age.
• Subject must have been referred for a clinically indicated cardiac catheterization or nuclear cardiac perfusion study.
• Subject must provide written informed consent prior to any study-related procedures being performed.
• Subject must be willing to comply with all clinical study procedures.

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Exclusion Criteria

• Subject is a pregnant or nursing female. Exclude the possibility of pregnancy:

  • By testing (urine βHCG) within 24 hours before contrast agent administration, or
  • By surgical sterilization, or
  • Post menopausal, with minimum one (1) year history without menses.

• Subject has an acute psychiatric disorder or is cognitively impaired.

• Subject is using or is dependent on substances of abuse.

• Subject is unwilling to comply with the requirements of the protocol.

• Subject has decreased renal function (eGFR <45)

• Subject has an allergy against iodinated contrast agents.

• Subject is in acute unstable condition.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Force	Coronary CT angiography on SOMATOM Force	Patients receiving coronary CT angiography on the SOMATOM Force before clinically indicated cardiac catheterization or after clinically indicated nuclear stress test
Control	Previous coronary CT angiography on 2nd generation CT scanner	Patients who have already received comparable CT examinations on current routine 2nd generation dual-source CT systems

Primary Outcome Measures

Name	Time	Method
Radiation dose and contrast material	one year	To determine the potential for reductions in radiation dose and contrast material requirements by performing coronary CT angiography at low tube potential with the new CT system.

Secondary Outcome Measures

Name	Time	Method
Diagnostic accuracy	one year	To determine the diagnostic accuracy of coronary CT angiography performed with the new CT system using coronary catheterization or nuclear myocardial perfusion imaging as reference standards.

Trial Locations

Locations (1)

MUSC Ashley River Tower; 🇺🇸 Charleston, South Carolina, United States