ASRT - Vascular Sonography Registry Review/ Ultrasound Vascular Registry
Review Complete.| COMPLETE QUESTIONS AND ANSWERS | 2025
Internal Carotid Arteries - (answers)Branch to form the ACA, MCA and the vertebral arteries
join at the level of the pons.
Circle of Willis - (answers)Internal carotid arteries supply the brain and join the vertebral
arteries, which help form this major vascular collateral pathway of the brain.
Anterior Communicating Arteries
TWO Anterior Cerebral Arteries
Bilateral ICA's
TWO Posterior Communicating Arteries
TWO Posterior Cerbral Arteries - (answers)The arteries that form the Circle of Willis.
Basilar and MCA - (answers)Arteries that supply the brain, but are not considered part of the
Circle of Willis.
Pericallosal Artery - (answers)Terminal end of the ACA that arches around the genu of the
corpus callosum and runs along the longitudinal fissure anterior to posterior.
Heubner's Artery - (answers)An important branch of the ACA that supplies the anteromedial
head of the caudate nucleus.
Away - (answers)Normal direction of the ACA when performing TCD.
Resistive Index - (answers)Decreases in the ACA as the brain matures from full-term to pre-term
infants, secondary to increase in diastolic flow velocities.
, Low pulsatility - high diastolic foward flow - (answers)Doppler tracing of the ACA in infants
with asphyxia due to decrease in the resistance of the CVS.
Middle Cerebral Artery - (answers)Largest and longest terminal branch of the cerebral ICA
which helps form the Circle of Willis, supplies the majority of the cerebrum, shows low resistive
blood flow and located at the level of the cerebral peduncles.
"Stroke Arteries" - (answers)MCA tree-like branches supplying the entire lateral aspect of each
cerebral hemisphere, including areas of speech and can cause major disabilities, like paralysis, if
damage occurs.
Anterior Communicating Artery - (answers)Joins the the anterior cerebral arteries of each
hemisphere and are branches of the ICA.
Posterior Communicating Artery - (answers)Joins the MCA's to the posterior communicating
arteries, which are part of the basilar system.
Veins of the Brain - (answers)Contain no valves and have very thin walls.
Middle Cerebral VEIN - (answers)Runs along the lateral cerebral fissure and is connected with
the superior sagittal sinus and the transverse sinus.
Vein of Galen - (answers)Formed by the internal cerebral veins and runs superiorly joining the
inferior sagittal sinus to form the straight sinus.
Venous Thrombosis - (answers)Process of the internal cerebral vein that may cause thalamic
edema and possibly hydrocephalus.
Superior Sagittal Sinus - (answers)The most prominent dural venous sinus.
Superior Sagittal Sinus Thrombosis - (answers)Should be considered in neonates with severe
dehydration or sepsis, or in infants who were treated with ECMO.
Review Complete.| COMPLETE QUESTIONS AND ANSWERS | 2025
Internal Carotid Arteries - (answers)Branch to form the ACA, MCA and the vertebral arteries
join at the level of the pons.
Circle of Willis - (answers)Internal carotid arteries supply the brain and join the vertebral
arteries, which help form this major vascular collateral pathway of the brain.
Anterior Communicating Arteries
TWO Anterior Cerebral Arteries
Bilateral ICA's
TWO Posterior Communicating Arteries
TWO Posterior Cerbral Arteries - (answers)The arteries that form the Circle of Willis.
Basilar and MCA - (answers)Arteries that supply the brain, but are not considered part of the
Circle of Willis.
Pericallosal Artery - (answers)Terminal end of the ACA that arches around the genu of the
corpus callosum and runs along the longitudinal fissure anterior to posterior.
Heubner's Artery - (answers)An important branch of the ACA that supplies the anteromedial
head of the caudate nucleus.
Away - (answers)Normal direction of the ACA when performing TCD.
Resistive Index - (answers)Decreases in the ACA as the brain matures from full-term to pre-term
infants, secondary to increase in diastolic flow velocities.
, Low pulsatility - high diastolic foward flow - (answers)Doppler tracing of the ACA in infants
with asphyxia due to decrease in the resistance of the CVS.
Middle Cerebral Artery - (answers)Largest and longest terminal branch of the cerebral ICA
which helps form the Circle of Willis, supplies the majority of the cerebrum, shows low resistive
blood flow and located at the level of the cerebral peduncles.
"Stroke Arteries" - (answers)MCA tree-like branches supplying the entire lateral aspect of each
cerebral hemisphere, including areas of speech and can cause major disabilities, like paralysis, if
damage occurs.
Anterior Communicating Artery - (answers)Joins the the anterior cerebral arteries of each
hemisphere and are branches of the ICA.
Posterior Communicating Artery - (answers)Joins the MCA's to the posterior communicating
arteries, which are part of the basilar system.
Veins of the Brain - (answers)Contain no valves and have very thin walls.
Middle Cerebral VEIN - (answers)Runs along the lateral cerebral fissure and is connected with
the superior sagittal sinus and the transverse sinus.
Vein of Galen - (answers)Formed by the internal cerebral veins and runs superiorly joining the
inferior sagittal sinus to form the straight sinus.
Venous Thrombosis - (answers)Process of the internal cerebral vein that may cause thalamic
edema and possibly hydrocephalus.
Superior Sagittal Sinus - (answers)The most prominent dural venous sinus.
Superior Sagittal Sinus Thrombosis - (answers)Should be considered in neonates with severe
dehydration or sepsis, or in infants who were treated with ECMO.
