Analysis Of Intracranial Artery Lesions Using 2-D/3D Phase Contrast MR
Hemodynamic Analysis Of Intracranial Artery And Associated Lesions Using 2-D/3D Phase Contrast MR Angiography Focused On Wall Shear Stress Measurement
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Hemodynamic stress toward the wall of intracranial artery with associated genuine defects of wall remodeling capacity is one of many hypotheses of subarachnoid aneurysm development. In addition, hemodynamic stress toward an aneurysm wall may play a very significant role for the rupture of an aneurysm creating acute Subarachnoid hemorrhage. We think the Wall Shear Stress (WSS) measurement toward an intracranial arterial wall and intracranial aneurysmal wall may provide valuable information for understanding of intracranial aneurysm development as well as predicting future morphological changes of aneurysm and possibly risk of future rupture. This study is significant especially in the management of unruptured subarachnoid arterial aneurysm patients and identifying patients who have higher rupture risks for active treatments such as surgical clipping or coiling to prevent unnecessary but potentially risky procedures.
Gadolinium MR Angiography with NOVA® Software will be used to measure the arterial wall shear stress (WSS) for patients with an intracranial arterial aneurysm. The aneurysm will be identified, blood flow, velocity, volume, vascular diameter and the direction of blood measurements will be taken using NOVA® Software at each point of interest. A WSS map of target intracranial artery and/or aneurysm sac will be created and matched with morphological features providing a clue to understand the the relationships between hemodynamic parameters, especially WSS and morphological changes.
Undersøgelsestype
Undersøgelsestype
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
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Massachusetts
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Burlington, Massachusetts, Forenede Stater, 01805
- Lahey Clinic, Inc.
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Unruptured and ruptured adult (>18 years) intracranial arterial aneurysm patients
Exclusion Criteria:
- Less than 18 years old
- Chronic renal failure patients
- Incompetent patient who cannot give consent for routine phase contrast MR Angiography and his/her surrogate decision maker is not available
- Any patients with a contraindication to having a standard MRI examination, such as phase maker, orbital metallic foreign body, etc.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Diagnostisk
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Andet: 2D/3D Phase contrast MR
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Procedure/Surgery: Additional 5 minutes scan time to standard MR angiography Using the Nova® Software, an additional 5 minutes scan time will be required in order to identify aneurysm, select target artery, and complete measurements Arms:
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Identify, measure and map the Wall Shear Stress (WSS) measurements and affects in subarachnoid aneurysm developement.
Tidsramme: Duration of the MRA test
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Duration of the MRA test
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Develope predictor to identify risk factors of possible future aneurysm rupture and SAH
Tidsramme: Duration of MRA test
|
Duration of MRA test
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Seon Kyu Lee, M.D., Ph.D., Lahey Clinic, Inc.
Publikationer og nyttige links
Generelle publikationer
- Amin-Hanjani S, Du X, Zhao M, Walsh K, Malisch TW, Charbel FT. Use of quantitative magnetic resonance angiography to stratify stroke risk in symptomatic vertebrobasilar disease. Stroke. 2005 Jun;36(6):1140-5. doi: 10.1161/01.STR.0000166195.63276.7c. Epub 2005 May 12.
- Zhao M, Amin-Hanjani S, Ruland S, Curcio AP, Ostergren L, Charbel FT. Regional cerebral blood flow using quantitative MR angiography. AJNR Am J Neuroradiol. 2007 Sep;28(8):1470-3. doi: 10.3174/ajnr.A0582.
- Ahn S, Shin D, Tateshima S, Tanishita K, Vinuela F, Sinha S. Fluid-induced wall shear stress in anthropomorphic brain aneurysm models: MR phase-contrast study at 3 T. J Magn Reson Imaging. 2007 Jun;25(6):1120-30. doi: 10.1002/jmri.20928.
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
- 2008-020
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