Pulmonary MR Angiography and Lower Extremity MR Venous Imaging Using Gadofosveset (Ablavar)
Pulmonary MR Angiography and Lower Extremity MR Venous Imaging Using a Single Dose of Gadofosveset (Ablavar)
Studieoversigt
Detaljeret beskrivelse
Specific Aim 1: To assess first-pass SNR and CNR of pulmonary MR angiography performed with 0.03 mmol/Kg of intravenous gadofosveset trisodium.
Hypothesis: Use of 0.03 mmol/Kg of gadofosveset trisodium in gradient recalled echo pulmonary MR angiography will provide a pulmonary artery SNR and CNR equal to or better than the SNR and CNR obtained using the same MR technique with 0.2 mmol/Kg of a conventional contrast agent (gadopentetate dimeglumine) and equal to or better than 0.1 mmol/Kg of intravenous gadobenate dimeglumine. Data will be compared to SNR and CNR of pulmonary MR angiogram images obtained at Washington University as part of the PIOPED III study.
Specific Aim 2: To assess SNR and CNR of breath-hold pulmonary MR imaging obtained immediately after the original first-pass breath-hold pulmonary MR angiography.
Hypothesis: SNR and CNR of pulmonary MR angiography performed immediately after first-pass breath-hold pulmonary MR angiography will be at least equal to the SNR and CNR obtained using the same MR technique with 0.2 mmol/Kg of a conventional contrast agent (gadopentetate dimeglumine) and at least equal to 0.1 mmol/Kg of intravenous gadobenate dimeglumine.
Specific Aim 3: To assess SNR and CNR of lower extremity MR venogram (MRV) performed immediately after the two pulmonary MR angiograms, described above.
Hypothesis: SNR and CNR of passive lower extremity MRV performed after pulmonary MR angiography will be equal to or better than the SNR and CNR obtained using the same passive MRV technique with 0.2 mmol/Kg of a conventional contrast agent or 0.1 mmol/Kg of gadobenate dimeglumine. Again, data will be compared to SNR and CNR of lower extremity
Undersøgelsestype
Tilmelding (Faktiske)
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Patient that have pulmonary embolism.
- 18 yrs of age and older
Exclusion Criteria:
- allergy to gadolinium based contrast.
- allergy to iodated based contrast.
- renal insufficiency (GFR < 60 mL/min?1.73m2)
- pregnant or nursing
- contraindication to MRI
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Imaging Outcome
Tidsramme: Upon imaging
|
Assessment of imaging parameters such as SNR, CNR
|
Upon imaging
|
Samarbejdspartnere og efterforskere
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Pamela K Woodard, M.D., Washington University School of Medicine
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
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 10-0567
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 .