Evaluation of the CardioSond Electronic Stethoscope in the Detection of Coronary Artery Disease
16. april 2018 opdateret af: SonoMedica, Inc.
Validation of the CardioSond Sonospectrographic Digital Electronic Stethoscope in Diagnosing Coronary Artery Disease Versus CT Angiography
The study is designed to evaluate the predictive accuracy of the CardioSond digital electronic stethoscope in the detection of coronary artery disease (CAD) in patients with and without known disease who are referred to cardiac computed tomography angiography (CT scans).
Studieoversigt
Status
Afsluttet
Betingelser
Detaljeret beskrivelse
The CardioSond is a noninvasive medical device which detects heart sounds using ultrasensitive acoustic technology. The CardioSond produces a flow micro bruit score which is used to determine the likelihood of coronary artery disease.
The CardioSond exam will be given to patients two times: once prior to administration of vasodilators and potential beta blockade agents as part of the normal cardiac CT angiography protocol and again immediately post CT angiography. No other data will be taken on the patient and the patients involvement in the study will cease after data collection.
CT angiography data will be analyzed at a core lab at Medstar Research Institute and withheld from SonoMedica until all CardioSond acoustic data is analyzed and flow micro bruit scores are determined.
A data review panel lead by the principal investigator will examine the results of both the CardioSond and CT angiography data to determine the comparative accuracy of the CardioSond in detecting CAD in the study population.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
107
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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District of Columbia
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Washington, District of Columbia, Forenede Stater, 20010-2975
- Washington Hospital Center
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
20 år til 80 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
The study population will be sourced from patients presenting for cardiac CT angiography who meet inclusion / exclusion criteria.
Beskrivelse
Inclusion Criteria:
- Willingness to sign an informed consent.
Exclusion Criteria:
- Inability to provide informed consent
- History of prior myocardial infarction, percutaneous coronary intervention (i.e. stents) or coronary artery bypass graft surgery
- Heart rate over 70 beats per minute post beta blockade
- Artery calcification resulting in non-diagnostic CT angiographic images
- Supraventricular or ventricular arrhythmias that would be expected to affect CT angiography image quality (e.g. atrial fibrillation, atrial flutter, ventricular tachycardia, bigeminy and trigeminy). Patients with isolated premature atrial contraction and premature ventricular contractions may enroll
- Any pulmonary condition that would create abnormal physical findings that would interfere with the fidelity of the cardiac sound recordings (e.g. obstructive pulmonary disease, such as asthma or COPD, with audible wheezing)
- Presence of audible aortic or pulmonic diastolic murmurs, tricuspid or mitral flow diastolic murmurs or continuous murmurs
- Any chest wall configuration preventing adequate contact between the CardioSond acoustic recording sensor and precordium
- Any medical condition that would be expected to affect CT angiography image quality
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Determine the comparative diagnostic accuracy of the CardioSond digital electronic stethoscope versus CT angiography in detecting CAD, as defined as a stenosis of a major epicardial coronary artery of 50% or greater.
Tidsramme: Patient participation will be limited to the day of their CT angiography exam (day 1). Patients will receive two seperate CardioSond examinations which on average takes approximately 20 minutes.
|
The CardioSond digital electronic stethoscope's flow micro bruit score will be used as an indication of probability of disease in patients with and without known disease and compared to the results of CT angiography.
|
Patient participation will be limited to the day of their CT angiography exam (day 1). Patients will receive two seperate CardioSond examinations which on average takes approximately 20 minutes.
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Determine the effects of vasodilators and beta blockade on CardioSond digital electronic stethoscope data results on data taken post CT angiography.
Tidsramme: Patient participation will be limited to the day of their CT angiography exam (day 1). Patients will receive two seperate CardioSond examinations which on averages takes approximately 20 minutes.
|
The patient's flow micro bruit scores from each CardioSond examination (one pre CT angiography and one post CT angiography) will be compared to each other to assess the effects on the score of vasodilators administered as part of the CT angiography exam.
|
Patient participation will be limited to the day of their CT angiography exam (day 1). Patients will receive two seperate CardioSond examinations which on averages takes approximately 20 minutes.
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Allen J. Taylor, M.D., Medstar Health Research Institute
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
29. september 2010
Primær færdiggørelse (Faktiske)
27. april 2011
Studieafslutning (Faktiske)
27. april 2011
Datoer for studieregistrering
Først indsendt
14. juni 2011
Først indsendt, der opfyldte QC-kriterier
15. juni 2011
Først opslået (Skøn)
16. juni 2011
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
18. april 2018
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
16. april 2018
Sidst verificeret
1. februar 2013
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- SM-C103
- 2010-153 (Anden identifikator: Medstar Research Institute)
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