- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01272453
Computed Tomography Dose Reduction Using Sequential or Fast Pitch Sprial Technique (CTDOSE)
Computed Tomography Dose Reduction Using Sequential or Fast Pitch Sprial Technique Employed in Cardiothoracic Imaging
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
The development of a novel CT scanner capable of sequential or fast-pitch spiral techniques in most patients (Siemens Definition Flash) represents a potentially crucial technical innovation at a particularly critical juncture. National healthcare systems are under pressure to deliver accurate and cost-effective diagnosis of an increasing number of patients and CT angiography in various settings is a proven, highly accurate technique that has been shown to improve diagnostic efficiency and reduce the cost of care.
However, there has been increasing concern about the lifetime attributable risk of cancer from radiation related to diagnostic procedures. Such concern extends to other radiation-based procedures that contribute to the cumulative lifetime radiation exposure of patients. The Flash scanner holds the promise of substantially reducing exposure resulting from a variety of examinations.
The CT DOSE multicenter trial is therefore designed to validate the extent of dose reduction attendant to the use of the Flash scanner in cardiothoracic scanning, and to determine whether image quality is preserved in spite of significant dose reduction.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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California
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San Diego, California, Forenede Stater, 92134
- Naval Medical Center
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Massachusetts
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Boston, Massachusetts, Forenede Stater, 02114
- Massachusetts General Hospital
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Michigan
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Royal Oak, Michigan, Forenede Stater, 48073
- William Beaumont Hospital-Royal Oak
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Troy, Michigan, Forenede Stater, 48085
- William Beaumont Hospital-Troy
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Minnesota
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Minneapolis, Minnesota, Forenede Stater, 55407
- Minneapolis Heart Institute/ Abbott Northwestern
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New York
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New York, New York, Forenede Stater, 10006
- NYU Langone Medical Center
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Ohio
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Cleveland, Ohio, Forenede Stater, 44195
- Cleveland Clinic Foundation
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South Carolina
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Charleston, South Carolina, Forenede Stater, 29425
- Medical University of South Carolina
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Kingdom of Saudi Arabia
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Riyadh, Kingdom of Saudi Arabia, Saudi Arabien, 11426
- King Abdul-Aziz Cardiac Center, national Guard Health Affairs
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Scans from patients undergoing clinically indicated pulmonary angiography, aortography and/or CCTA.
- Age greater than or equal to 18 years.
Exclusion Criteria:
- No exclusions
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
|---|
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Control Group
Data from patients in the control group will be obtained retrospectively from patient medical records and stored image data
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Prospective Patient Group
Data from patients in the Flash group will be obtained prospectively from scanner consoles and medical records.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Radiation dose
Tidsramme: Time of CT scan
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The primary endpoint is radiation dose, measured as dose-length-product (DLP, in mGy∙cm) and effective radiation dose, calculated as DLP x 0.014 (in mSv).
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Time of CT scan
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Assessment of Image Quality
Tidsramme: Time of CT Scan
|
Signal noise (standard deviation of attenuation in Hounsfield units) will be determined in regions of interest in: A) air anterior to the chest wall, B) mid-LV septum and C) mid thoracic aorta or main PA.
This will be done in a sequential sample of every 5th case (approximately 600 cases total).
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Time of CT Scan
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Gilbert Raff, MD, William Beaumont Hospitals
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 2010-209
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