- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07577752
Quantifying Blood Flow in the Aorta (AF-4DMRI-P2)
Quantifying Blood Flow in the Aorta Using Phase-Contrast 4D Flow MRI - Phase 2
Přehled studie
Postavení
Podmínky
Intervence / Léčba
Detailní popis
The goal of this observational study is to obtain PC 4D flow MRI scans in seventy healthy volunteers (without any known history of cardiovascular disease) to quantify local blood flow in the thoraco-abdominal aorta and its primary side branches and extract boundary conditions for future in-vitro and in-silico studies. Furthermore, the 3D geometry of the vessels within investigated FOVs, starting from ascending aorta to internal/external iliac arteries, will be obtained by performing a separate MRI sequence.
Participants will be asked to undergo MRI scans and are asked to fill out a questionnaire regarding their age, weight, height, and gender. By relating this data to the blood flow patterns observed in the aorta, conclusions can be drawn on the differences in blood flow with gender and how aortic blood flow changes with age.
Typ studie
Zápis (Odhadovaný)
Kontakty a umístění
Studijní kontakt
- Jméno: Marleen E. Krommendijk, ir.
- Telefonní číslo: +31534894988
- E-mail: m.e.krommendijk@utwente.nl
Studijní místa
-
-
Overijssel
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Enschede, Overijssel, Holandsko, 7522 NH
- Nábor
- TechMed centre, University of Twente
-
Kontakt:
- Cindy D. Lammertink, drs.
- Telefonní číslo: +31534895350
- E-mail: c.d.lammertink@utwente.nl
-
Dílčí vyšetřovatel:
- Hadi Mirgolbabaee, dr.
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Dílčí vyšetřovatel:
- Marleen E. Krommendijk, ir.
-
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
- Starší dospělý
Přijímá zdravé dobrovolníky
Metoda odběru vzorků
Studijní populace
Popis
Inclusion Criteria:
- Healthy (in particular without any cardiovascular disease or history thereof) men or women
- 18 years of age or above;
- BMI ≤ 30;
- Willingness to undergo MRI scans;
- Able to provide signed informed consent (IC)
Exclusion Criteria:
- Irregular heartbeat.;
- Any history of cardiovascular disease or current cardiovascular disease;
- The standard MRI exclusion criteria (such as pacemakers, cerebral vascular clips, pregnancy, claustrophobia)
Studijní plán
Jak je studie koncipována?
Detaily designu
Kohorty a intervence
Skupina / kohorta |
Intervence / Léčba |
|---|---|
|
Group 1
Five men aged 18-25 and five women aged 18-25
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
|
Group 2
Five men aged 26-35 and five women aged 26-35
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
|
Group 3
Five men aged 36-45 and five women aged 36-45
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
|
Group 4
Five men aged 46-55 and five women aged 46-55
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
|
Group 5
Five men aged 56-65 and five women aged 56-65
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
|
Group 6
Five men aged 66-75 and five women aged 66-75
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
|
Group 7
Five men aged 76-85 and five women aged 76-85
|
Subjects will undergo MRI scans of the thorax and abdomen from which we will derive aortic blood flow velocity fields.
This intervention will be performed in the same manner on all groups.
Ostatní jména:
Subjects fill in a questionnaire regarding their weight, height, age and gender.
They also fill in a safety check form to test if MRI can be applied safely.
|
Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Aortic blood flow velocity fields
Časové okno: Day 1
|
Velocity fields will be acquired, consisting of vectors that describe the velocity magnitude (cm/s) and direction (dimensionless) of blood flow in the aorta.
For visualisation purposes, arrows will be used to overlay the shape of the volunteers aorta.
Colours of the arrrows indicate the velocity magnitude and direction of the arrows inicate the direction of flow.
Velocity fields are generated for the the full aorta, from the ascending aorta to internal/external iliac arteries, including branched arteries such as subclavian arteries, common carotid artery, and visceral branch vessels.
|
Day 1
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Age of volunteer
Časové okno: Day 1
|
Age of volunteer (in years) for division into groups based on gender and age, gathered using a questionnaire.
|
Day 1
|
|
Gender of volunteer
Časové okno: Day 1
|
Gender of volunteer (male/female/other) for division into groups based on gender and age, gathered using a questionnaire.
|
Day 1
|
|
Height of volunteer
Časové okno: Day 1
|
Height (in m) for BMI (in kg/m^2) calculation, gathered using a questionnaire.
|
Day 1
|
|
Weight of volunteer
Časové okno: Day 1
|
Weight (in kg) for BMI (in kg/m^2) calculation, gathered using a questionnaire.
|
Day 1
|
|
Aortic blood flow waveforms
Časové okno: Day 1
|
Waveforms will be acquired that show how aortic blood flow in a certain region of interest progresses over the cardiac cycle, presented as plots of velocity magnitude (cm/s) over time (s).
Regions of interest are selected in the ascending aorta, descending aorta, carotid arteries, subclavian arteries, renal arteries, suprarenal aorta, abdominal aorta, common iliac arteries, internal iliac arteries, and external iliac arteries.
|
Day 1
|
|
Wall shear stress
Časové okno: Day 1
|
Wall shear stress (Pa) is a hemodynamic parameter expressing the force acting on a certain area of the vessel wall by the flow of blood.
This parameter will be extracted from the blood flow velocity vectors in a certain region of interest (e.g. in the ascending aorta, descending aorta, renal arteries, or iliac arteries) and will be plotted over the cardiac cycle.
|
Day 1
|
|
Oscillatory Shear Index
Časové okno: Day 1
|
Oscillatory Shear Index (dimensionless) is a hemodynamic parameter that defines how much the wall shear stress field changes directions over time, which can tell something about whether the forces on the wall (and the flow of blood) are more uniform or more complex.
This parameter will be extracted from the blood flow velocity vectors in a certain region of interest (e.g. in the ascending aorta, descending aorta, renal arteries, or iliac arteries) and will be plotted over the cardiac cycle.
|
Day 1
|
|
Kinetic Energy
Časové okno: Day 1
|
Kinetic Energy (J) in the field of fluid mechanics describes the energy related to the flow of blood in a certain region of interest with a certain mass or volume.
This parameter will be extracted from the blood flow velocity vectors in a certain region of interest (e.g. in the ascending aorta, descending aorta, renal arteries, or iliac arteries) and will be plotted over the cardiac cycle.
|
Day 1
|
|
Turbulent Kinetic Energy
Časové okno: Day 1
|
Turbulent Kinetic Energy (J/kg) is a hemodynamic parameter describing the energy related to the fluctuations in blood flow velocity.
This parameter will be extracted from the blood flow velocity vectors in a certain region of interest (e.g. in the ascending aorta, descending aorta, renal arteries, or iliac arteries) and will be plotted over the cardiac cycle.
|
Day 1
|
|
Helicity
Časové okno: Day 1
|
Helicity (m^4/s^2) is a hemodynamic parameter that describes how much the blood flow follows a corkscrew-like pattern.
This parameter will be extracted from the blood flow velocity vectors in a certain region of interest (e.g. in the ascending aorta, descending aorta, renal arteries, or iliac arteries) and will be plotted over the cardiac cycle.
|
Day 1
|
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Vorticity
Časové okno: Day 1
|
Vorticity (s^-1) is a hemodynamic parameter that reflects the rotational nature of the blood flow.
This parameter will be extracted from the blood flow velocity vectors in a certain region of interest (e.g. in the ascending aorta, descending aorta, renal arteries, or iliac arteries) and will be plotted over the cardiac cycle.
|
Day 1
|
Spolupracovníci a vyšetřovatelé
Sponzor
Vyšetřovatelé
- Vrchní vyšetřovatel: Michel M.P.J. Reijnen, prof. dr., University of Twente
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
- Kvalita zdravotní péče, přístup a hodnocení
- Vyšetřovací techniky
- Epidemiologické metody
- Sběr dat
- Mechanismy hodnocení zdravotní péče
- Kvalita zdravotní péče
- Veřejné zdraví
- Životní prostředí a veřejné zdraví
- Techniky chemie, analytické
- Analýza spektra
- Průzkumy a dotazníky
- Magnetická rezonanční spektroskopie
Další identifikační čísla studie
- AF-4DMRI-P2
- NL88490.091.25 (Jiný identifikátor: Centrale Commissie Mensgebonden Onderzoek (CCMO))
Plán pro data jednotlivých účastníků (IPD)
Plánujete sdílet data jednotlivých účastníků (IPD)?
Informace o lécích a zařízeních, studijní dokumenty
Studuje lékový produkt regulovaný americkým FDA
Studuje produkt zařízení regulovaný americkým úřadem FDA
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