Knowledge-based Iterative Model Reconstruction at Low-kilovoltage (kV) Cardiac Computed Tomography (CT)

This study has been completed.
Information provided by (Responsible Party):
Daisuke Utsunomiya, Kumamoto University Identifier:
First received: July 8, 2013
Last updated: July 10, 2013
Last verified: July 2013

The purpose of this study was to compare FBP-, hybrid IR-, and IMR techniques to assess their role in the identification of coronary artery disease and abnormalities in cardiac structures.

Coronary Artery Disease

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Retrospective
Official Title: Value of Knowledge-based Iterative Model Reconstruction at Low-kilovoltage Cardiac 256-slice CT: A Comparison of Filtered Back Projection-, Hybrid-, and Iterative Model Reconstruction

Resource links provided by NLM:

Further study details as provided by Kumamoto University:

Primary Outcome Measures:
  • Contrast to noise ratio of coronary arteries [ Time Frame: 6 months ] [ Designated as safety issue: No ]

Enrollment: 21
Study Start Date: May 2012
Primary Completion Date: January 2013 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   45 Years to 85 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population

We enroll consecutive patients.


Inclusion Criteria:

  • A BMI of 27 kg/m2 or less and a coronary calcium score of less than 1,000 Agatston units.

Exclusion Criteria:

  • BMI exceeded 27 kg/m2
  • renal dysfunction (serum creatinine level > 1.5 mg/dl)
  • atrial fibrillation
  • prior coronary artery bypass grafting
  • heart failure (New York Heart Association class III-IV)
  Contacts and Locations
No Contacts or Locations Provided
  More Information

No publications provided

Responsible Party: Daisuke Utsunomiya, Lecturer, Kumamoto University Identifier: NCT01896674     History of Changes
Other Study ID Numbers: Kuma1478
Study First Received: July 8, 2013
Last Updated: July 10, 2013
Health Authority: Japan: Institutional Review Board

Keywords provided by Kumamoto University:
Computed tomography

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases processed this record on April 23, 2014