Influence of Contrast Injection Force on the Accuracy of Vessel Measurements in Cerebral Angiography
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Research for this study is to determine how the injection of contrast material influences vessel measurements, as these measurements guide device selection when interventions are warranted.
The data will be used to determine if there is a significant change in vessel diameter with intra-arterial injection of contrast material in cerebral angiography, how changes in force of contrast injection augments the significance of the changes in vessel geometry, and the extent of propagation downstream from the catheter tip that such changes in vessel diameter are detected and found to be significant, as these changes could potentially lead to less optimal device selection by providing an overestimation of true vessel diameter.
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
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North Carolina
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Winston-Salem, North Carolina, Forente stater, 27157
- Wake Forest University Health Sciences
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Patients receiving care at WFBMC that will be undergoing a standard of care cerebral angiogram that are anticipated to have multiple images per standard view (a minimum of 2 images for an individual view required for the necessary data collection).
Patients that are anticipated to have less than 2 images for each standard view collected from their cerebral angiogram.
Beskrivelse
Inclusion Criteria:
- Patients receiving care at WFBMC that will be undergoing a standard of care cerebral angiogram who are anticipated to have a minimum of 2 images for an individual view required for the necessary data collection
Exclusion Criteria:
- Patients who are anticipated to have less than 2 images for each standard view collected from their cerebral angiogram.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
|---|---|
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Standard of Care Cerebral Angiogram Group
Participants undergoing a standard of care cerebral angiogram.
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Subjects will undergo the standard of care cerebral angiogram and any intervention(s) (when applicable) that were discussed with their provider, following the standard procedural protocol for the procedure at WFBMC. There are no additional interventions or changes to the planned intervention(s) that will take place by agreeing to participate in the study. The data collected from this procedure, following the standard of care protocol, will include the following: force of injection of contrast material for each angiographic run (peak pressure associated with injection, duration of peak, and area under pressure curve), volume of contrast utilized, images from the procedure, measurements of vessel diameter at defined distances from the catheter tip utilizing the images, catheter type, any additional device(s) (when applicable) utilized during the procedure, and if spasmolytic agents are utilized (including dose and time of administration). |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Peak pressure associated with injection
Tidsramme: During procedure, up to 10 minutes
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The effort force of injection will be measured and recorded for each run using a standard arterial line pressure transducer setup that attaches to the guide catheter, with data acquired via Mediocollector (a program that allows for quantitative recording of data.
The duration of peak pressure will be collected.
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During procedure, up to 10 minutes
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The duration of peak pressure
Tidsramme: During procedure, up to 10 minutes
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The duration of peak pressure will be collected.
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During procedure, up to 10 minutes
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Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Vessel Diameter
Tidsramme: During the procedure, up to 10 minutes
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Measurement of vessel diameter
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During the procedure, up to 10 minutes
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Samarbeidspartnere og etterforskere
Etterforskere
- Hovedetterforsker: Kyle M Fargen, MD, Ph.D, Wake Forest University Health Sciences
Publikasjoner og nyttige lenker
Generelle publikasjoner
- S P Sutera a, Skalak R. The History of Poiseuille's Law. Annual Review of Fluid Mechanics. 1993;25(1):1-20
- Yousem DM, Trinh BC. Injection rates for neuroangiography: results of a survey. AJNR Am J Neuroradiol. 2001 Nov-Dec;22(10):1838-40.
- Hao Q, Lieber BB. Dispersive Transport of Angiographic Contrast During Antegrade Arterial Injection. Cardiovasc Eng Technol. 2012 Jun 1;3(2):171-178. doi: 10.1007/s13239-012-0090-x. Epub 2012 Apr 13.
- Alexander MD, Nicholson AD, Darflinger RJ, Settecase F, Cooke DL, Dowd CF, Amans MR, Higashida RT, Hetts SW, Halbach VV. Effects on vessel measurement accuracy and subsequent occlusion after calcium channel blocker infusion during treatment of cerebral aneurysms with the Pipeline embolization device. Interv Neuroradiol. 2017 Feb;23(1):47-51. doi: 10.1177/1591019916674916. Epub 2016 Oct 27.
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Andre studie-ID-numre
- IRB00049517
Plan for individuelle deltakerdata (IPD)
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Legemiddel- og utstyrsinformasjon, studiedokumenter
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