- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning 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
Studieöversikt
Status
Betingelser
Detaljerad beskrivning
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.
Studietyp
Inskrivning (Faktisk)
Kontakter och platser
Studieorter
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California
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San Diego, California, Förenta staterna, 92134
- Naval Medical Center
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Massachusetts
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Boston, Massachusetts, Förenta staterna, 02114
- Massachusetts General Hospital
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Michigan
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Royal Oak, Michigan, Förenta staterna, 48073
- William Beaumont Hospital-Royal Oak
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Troy, Michigan, Förenta staterna, 48085
- William Beaumont Hospital-Troy
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Minnesota
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Minneapolis, Minnesota, Förenta staterna, 55407
- Minneapolis Heart Institute/ Abbott Northwestern
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New York
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New York, New York, Förenta staterna, 10006
- NYU Langone Medical Center
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Ohio
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Cleveland, Ohio, Förenta staterna, 44195
- Cleveland Clinic Foundation
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South Carolina
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Charleston, South Carolina, Förenta staterna, 29425
- Medical University of South Carolina
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Kingdom of Saudi Arabia
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Riyadh, Kingdom of Saudi Arabia, Saudiarabien, 11426
- King Abdul-Aziz Cardiac Center, national Guard Health Affairs
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
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
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
|---|
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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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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Radiation dose
Tidsram: Time of CT scan
|
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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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Assessment of Image Quality
Tidsram: 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).
|
Time of CT Scan
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Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Huvudutredare: Gilbert Raff, MD, William Beaumont Hospitals
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 2010-209
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