- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00965679
X-ray Fluoroscopy Fused With Computed Tomography (XFC) Technical Development
Background:
- Computed tomography (CT) creates three-dimensional images based on X-ray imaging. CT is useful for determining treatment approaches for certain diseases, such as calcific aortic stenosis (narrowing of the aorta because of calcium deposits).
- Comparing the data received from CT scans with the data received from heart catheterization (which assesses the heart's condition and function) can be used to improve treatment in patients with certain heart conditions. Researchers are interested in looking at the effectiveness of both procedures in assessing possible surgical treatments for patients with calcific aortic stenosis.
Objectives:
- To analyze cardiac CT scans in conjunction with existing heart scan results to improve treatments for future minimally invasive aortic valve replacement.
Eligibility:
- Patients 18 years of age and older who have been diagnosed with aortic valve stenosis that may be treated surgically, and who will undergo or have recently undergone heart catheterization.
Design:
- Participants will have a CT scan within 90 days of the medically necessary heart catheterization, but before any other surgical or catheter treatment.
- During the CT scan, patients will be asked to hold their breath intermittently for about 5 to 20 seconds. Patients will be inside the scanner for less than 30 minutes.
- Patients will be asked to return in 3 to 7 days for a blood test to check kidney function.
- Researchers will analyze the results of the CT scan in conjunction with the previous results from the catheterization to determine possible improved treatment options.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Maryland
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Bethesda, Maryland, United States, 20892
- National Institutes of Health Clinical Center, 9000 Rockville Pike
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
- INCLUSION CRITERIA:
SELECTION CRITERIA: PATHWAY FOR RESEARCH CT:
- Adult patients age 18 years or older
- Having calcific aortic stenosis being considered for surgical or catheter-based treatment, determined on physical examination or noninvasive imaging such as echocardiography
- Undergoing diagnostic cardiac catheterization within 1 year
- Able to provide informed consent
ALTERNATIVE SELECTION CRITERIA: PATHWAY FOR ANALYSIS OF MEDICAL DATA:
- Adult patients age 18 years or older
- Having calcific aortic stenosis being considered for surgical or catheter-based treatment, determined on physical examination or noninvasive imaging such as echocardiography
- Undergoing diagnostic cardiac catheterization within 1 year
- Having undergone cardiac CT for medical indications meeting the technical requirements of this protocol
- Able to provide informed consent
EXCLUSION CRITERIA:
SELECTION CRITERIA: PATHWAY FOR RESEARCH CT:
- Pregnant or lactating women
- Decompensated heart failure (unable to lie flat during CT)
EXCLUSION CRITERIA FOR BETA ADRENERGIC BLOCKERS:
- Advanced atrioventricular block (Mobitz Type II second degree or third degree atrioventricular heart block)
- Asthma or chronic obstructive pulmonary disease (emphysema) currently treated with beta adrenergic agonists
EXCLUSION CRITERIA FOR IODINATED RADIOCONTRAST:
-Severe kidney disease (MDRD estimated Glomerular Filtration Rate
< 30mL/min/l.73m(2)).
-Request of referring physician or surgeon not to administer iodinated radiocontrast
ALTERNATIVE SELECTION CRITERIA: PATHWAY FOR ANALYSIS OF MEDICAL DATA:
-None
Study Plan
How is the study designed?
Design Details
- Time Perspectives: Prospective
Collaborators and Investigators
Publications and helpful links
General Publications
- Gutierrez LF, Silva Rd, Ozturk C, Sonmez M, Stine AM, Raval AN, Raman VK, Sachdev V, Aviles RJ, Waclawiw MA, McVeigh ER, Lederman RJ. Technology preview: X-ray fused with magnetic resonance during invasive cardiovascular procedures. Catheter Cardiovasc Interv. 2007 Nov 15;70(6):773-82. doi: 10.1002/ccd.21352.
- Phan A, Dalle S, Thomas L. [Acquired pigmented lesion of the finger pulp]. Ann Dermatol Venereol. 2009 May;136(5):477-8. doi: 10.1016/j.annder.2008.09.020. Epub 2009 Mar 10. No abstract available. French.
- Tenaza RR. Songs, choruses and countersinging of Kloss' gibbons (Hylobates klossii) in Siberut Island, Indonesia. Z Tierpsychol. 1976 Jan;40(1):37-52. doi: 10.1111/j.1439-0310.1976.tb00924.x.
Study record dates
Study Major Dates
Study Start
Primary Completion
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 090211
- 09-H-0211
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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