Magnetic Resonance Imaging To Predict Outcomes In Aortic Aneurysms
Efficacy of Magnetic Resonance Imaging Using Ultrasmall Superparamagnetic Particles of Iron Oxide to Predict Clinical Outcome in Patients Under Surveillance for Abdominal Aortic Aneurysms
Studieoversigt
Status
Status
Betingelser
Betingelser
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
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Edinburgh, Det Forenede Kongerige, EH16 4SB
- Clinical Research Imaging Centre/ NHS LOTHIAN
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
Patients with an abdominal aortic aneurysm >40 mm
Exclusion Criteria:
- Any medical history or clinically relevant abnormality identified on the screening medical examination, vital sign measurement, or clinical laboratory examination that is deemed by the principal investigator and/or designee to make the subject ineligible for inclusion.
- Subjects with planned AAA surgery.
- Renal impairment with eGFR of <30 mls/min at screening, history of kidney transplant or history of contrast nephropathy.
- Women of child-bearing potential without contraception,
- Collagen-vascular disease.
- Inability to undergo magnetic resonance or computed tomography scanning,
Contraindication to MRI scanning (as assessed by local MRI safety questionnaire) which includes but not limited to:
- Intracranial aneurysm clips (except Sugita) or other metallic objects,
- History of intra- orbital metal fragments that have not been removed,
- Pacemakers, implantable cardiac defibrillators and non-MR compatible heart valves,
- Inner ear implants,
- History of claustrophobia in MR.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
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Abdominal Aortic Aneurysms
Patients will be recruited from the outpatient AAA surveillance population at the vascular unit in the Royal Infirmary of Edinburgh.Potential participation in the study will be completely asymptomatic from their AAA.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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To determine if uptake ultrasmall superparamagnetic particles of iron oxide as determined by percentage R2* change between pre-and post-constant scan will predict abdominal aortic aneurysm growth and rupture in patients with abdominal aortic aneurysms.
Tidsramme: 2 yrs
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The change of R2* signal which is determined by the USPIO uptake within the issues will be used to assess the change between pre-and post contrast MRI scans.
The investigators will assess if macrophage activity as determined by USPIO change predicts AAA growth and rupture
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2 yrs
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Does USPIO uptake as determined by percentage change between pre-and post contrast scan co-relates with FDG PET standardised uptake values or tissue to background ratios.
Tidsramme: 2 yrs
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As per ethical approval, we have recruited patients under AAA PET study to look at USPIO correlation with 18F-FDG PET.
The cellular inflammation can be assessed by USPIO uptake, whilst the metabolic activity can be determined by 18F-FDG PET.
In this study, the investigators will determine if there is a correlation between the these two imaging modalties by comparing the R2* change using MRI and standardised uptake values using FDG PET.
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2 yrs
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: David Newby, MD PhD, University of Edinburgh
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2011/R1CARl05
- 10336 (Registry Identifier: UKRCN)
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