- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02458352
Ultra Low Dose CT for CACS and AC of SPECT
Usefulness of Ultra Low Dose Cardiac CT for Coronary Calcium Scoring and for Attenuation Correction of SPECT
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
-
Zurich, Schweiz, 8091
- Department of Nuclear Medicine, University Hospital Zurich
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Patients referred for myocardial perfusion SPECT
- Male and Female subjects ≥18 years of age,
- Written informed consent
Exclusion Criteria:
- Pregnancy or breast-feeding
- CACS of 0 after inclusion of 10 patients with CACS 0
- Stents or implanted cardiac devices (valves, pace makers, ICD)
- Coronary artery bypass grafts
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Diagnostisk
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Andet: Standard dose CT, Ultra-low dose CT
Standard dose non-contrast enhanced CT (clinically indicated) and Ultra low dose non-contrast enhanced CT (as part of the trial)
|
Non-contrast enhanced CT for CACS and AC using a novel protocol for ultra low dose radiation dose exposure
Clinically indicated non-contrast enhanced CT for CACS and AC according to routine protocol
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Agreement and Correlation of Coronary Artery Calcium Score Obtained From Ultra-low-dose and Standard CT
Tidsramme: 1 days
|
CAC and BA limits of agreement between coronary artery calcium score obtained from ultra-low-dose and standard CT. Coronary artery calcium (CAC) is a measure for quantification of coronary artery calcification based on non-contrast enhanced CT, ranging from 0 (no calcifications) to infinite. It is an arbitrary unit. Increasing CAC means higher amounts of coronary artery calcifications and is associated with worse prognosis. Bland-Altman (BA) analysis is a statistical method to compare two modalities or techniques assessing the same measure. Limits of agreement is defined as +/- twice the standard deviation of the differences between the reference method and the new modality/technique. Broader limits of agreement mean less accurate results obtained by the new modality/techniqe, while a 0 BA limit of agreement would theoretically reflect perfect agreement. |
1 days
|
|
Intra-class Correlation Coefficient Between Segmental Relative Tracer Uptake From SPECT Datasets Reconstructed With AC Maps Based on Ultra-Low-Dose and Standard Dose CT
Tidsramme: 1 day
|
For every patient, the CT images from 120 and 70 kVp-CT scans were used to create CTAC maps which were then used to reconstruct SPECT images, displayed as a 17-segment model polar plot with normalized percent tracer uptake given for every segment.
Intra-class correlation was then applied to compare segmental relative tracer uptake.
Analysis and the resulting correlation coefficient of 0.987 basically demonstrates interchangeability between the two datasets.
|
1 day
|
Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Studieleder: Valerie Treyer, PhD, University of Zurich
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 (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- USZ-2015-0072
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
Kliniske forsøg med Koronararteriesygdom
-
IRCCS Policlinico S. DonatoRekrutteringAnomalous aorta origin of the coronary artery (AAOCA)Italien
-
University Hospital OstravaRekrutteringIn-Stent Carotis Artery RestenosisTjekkiet
-
Zhejiang Cancer HospitalRekrutteringHepatic Artery Infusion | Levermetastase fra BrystkræftKina
-
University Hospital of PatrasRekrutteringDistal Radial Artery Access (dTRA) | Adgang til radial arterieGrækenland
-
Nanfang Hospital, Southern Medical UniversityAfsluttetLeverskade | Hepatecellular carcinoma | HAIC (Hepatic Artery Infusion Chemotherapy) | TACE(Transkateter arteriel kemioembolisering)Kina
-
Sohag UniversityIkke rekrutterer endnuUmblical artery Doppler under terminsgraviditetEgypten
-
Inova Health Care ServicesBoston Scientific CorporationAfsluttetKoronar angiografi | Transradial adgang | Radial arterie Intimal Medial Tykkelse | Distal Radial Artery Access (dTRA)Forenede Stater
-
IRCCS Policlinico S. DonatoUniversity of Pavia; University of Naples; The Mediterranean Institute for...RekrutteringMyokardieiskæmi | Pludselig hjertedød | Anomal koronararterieoprindelse | Anomal koronararterie, der opstår fra den modsatte sinus | Anomal koronararterie med aorta-oprindelse og forløb mellem de store arterier | Anomalous aorta origin of the coronary artery (AAOCA) | Myokardieiskæmi, Angina Pectoris og andre forholdItalien
-
Baylor College of MedicineAfsluttetLungeblødning | MAPCA - Major Aortopulmonary Collateral ArteryForenede Stater
-
Daewoong Pharmaceutical Co. LTD.UkendtMCA - Middle Cerebral Artery DissektionKorea, Republikken
Kliniske forsøg med Ultra low dose non-contrast enhanced CT
-
Virginia Commonwealth UniversityGuerbetTrukket tilbageKoronararteriesygdom | Akut nyreskade | Perkutan koronar interventionForenede Stater
-
Seoul National University HospitalAfsluttetHepatocellulært karcinomKorea, Republikken
-
Guo ShiWeiRekrutteringBrystkræft | Kræft i bugspytkirtlen | Spiserørskræft | Leverkræft | Mavekræft | Lungekræft | Kolorektal, kræftKina