Status:
COMPLETED
Effects of Heart Rates and Variability of Heart Rates on Image Quality of Dual-Source CT Coronary Angiography
Lead Sponsor:
Far Eastern Memorial Hospital
Conditions:
CT
Coronary Angiography
Eligibility:
All Genders
21-78 years
Brief Summary
The purpose of this study is to investigate the effects of heart rates (including maximum heart rate, average heart rate and minimum heart rate) and variability of heart rate on image quality of DSCT ...
Detailed Description
The dual-source CT (DSCT) equipped with two X-ray tubes at 90 degree offset in the gantry can provide temporal resolution 83ms using mono-segmental reconstruction technique. The recent studies about t...
Eligibility Criteria
Inclusion
- From Oct 2006 to Jan 2007, CT coronary angiographies of 180 consecutive adult patients, were performed in our hospital using a DSCT scanner. After exclusion of the patients according to the exclusion criteria, totally DSCT coronary angiographies of 133 adult patients (N=133) were enrolled in this study. Among those 133 patients, including 97 males and 36 females with a mean age of 53.9 (ranging from 21 to 78 year old), 50 patients were chronic β-blocker users (group 1) while the other 83 patients (group 2) were not chronic user of any medication controlling heart rate
Exclusion
- The patients below 18 year old, patients with status post heterotopic heart transplantation (having two hearts in a chest), patients with status post coronary by-pass surgery and patients with post indwelling of coronary arterial stents
Key Trial Info
Start Date :
October 1 2007
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
December 1 2007
Estimated Enrollment :
149 Patients enrolled
Trial Details
Trial ID
NCT00632918
Start Date
October 1 2007
End Date
December 1 2007
Last Update
December 29 2008
Active Locations (1)
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1
Department of Medical Imaing, Far Eastern Memorial Hospital
Banqiao District, Taipei, Taiwan, 200