Standard Sonographic Views Flashcards
What describes a fetal heart that is situated in the fetal right chest with the apex pointing to the left?
A. Dextrocardia
B. Mesocardia
C. Dextroposition
D. Levocardia
E. Levorotation
C. Dextroposition
Dextroposition is an abnormal heart position, with the heart in the right chest and the apex pointing left.
All of the following are normal levoposition EXCEPT:
A. 20 degrees
B. 45 degrees
C. 25 degrees
D. 65 degrees
E. 35 degrees
A. 20 degrees
The normal heart angle relative to midline is 45 degrees (+/- 20 degrees). The line traversing the interventricular septum and a line coursing from spine to mid chest should intersect at an angle of 25-65 degrees. This correct angle is normal levoposition of the fetal heart.
The view that best demonstrates the atrioventricular junction, including the valve leaflets and annulus, is the:
A. Apical four-chamber view
B. Short-axis view
C. Subcostal four-chamber view
D. Five-chamber view
E. A and C
E. A and C (Apical four-chamber view and Subcostal four-chamber view)
Subcostal and apical four-chamber view.
When the apex of the heart is pointing to the fetal left chest and the axis is 45 degrees, this is:
A. Levocardia
B. Mesocardia
C. Dextrocardia
D. Levorotated
E. Dextroposition
A. Levocardia
Normal heart position in the fetal thorax is termed levocardia. The normal heart is situated in the left chest with the apex pointing to the left. The axis of the heart should be 45 degrees (+/- 20 degrees).
In the short-axis view of the great vessels, all of the following can be demonstrated EXCEPT:
A. Foramen Ovale
B. Pulmonic valve
C. Left Atrium
D. Left Ventricle
E. Tricuspid valve
D. Left ventricle
In the short-axis view of the great vessels the left ventricle is located inferiorly. Therefore, it is not visualized in this view.
What is the best view to evaluate the number of aortic cusps?
A. Apical four-chamber
B. Subcostal four-chamber view
C. Long-axis view of the aorta
D. Long-axis view of the pulmonary artery
E. Short-axis view of the great vessels
E. Short-axis view of the great vessels
In the short-axis view of the great vessels the aortic root may be visualized. At this level, the cusps of the aortic valve are seen in cross section. The aorta is seen as a “circle” in the center of the image with the pulmonary artery coursing around it.
When diagnosing a fetal heart defect, the four-chamber heart view will be abnormal in what percentage of all defects?
A. 10%
B. 20%
C. 40%
D. 60%
E. 80%
D. 60%
The best view for evaluating a conoventricular or perimembranous ventricular septal defect is:
A. Apical four-chamber view
B. Subcostal four-chamber view
C. Long-axis view of the aorta
D. Long-axis view of the pulmonary artery
E. Short-axis view of the ventricles
B. Subcostal four-chamber view
In the subcoastal four-chamber view, the ultrasound beam is perpendicular to the interventricular septum, therefore increasing the detection of conoventricular or perimembranous defects and decreasing dropout artifacts.
What structure cannot be seen on the routine four-chamber heart view?
A. Foramen ovale flap bulging from right atrium to left atrium
B. Moderator band present in the right ventricle
C. Septal attachments of the tricuspid valve to the interventricular septum
D. Aortic wall continuity with the interventricular septum
E. Pulmonary veins being accepted into the left atrium
D. Aortic wall continuity with the interventricular septum
The aorta is located superior to the atrioventricular valves, so continuity of the aortic wall with the septum cannot be seen in the four-chamber view. The best view for this would be the long-axis view of the aorta.
Which modality transmits the highest amount of energy into the fetus?
A. 2D imaging
B. Pulse wave Doppler
C. Color Doppler
D. Power Doppler
E. M-mode
B. Pulse wave Doppler
In the three-vessel view, which vessel is most superior?
A. Aorta
B. Superior vena cava
C. Pulmonary artery
D. Ductus arteriosus
E. Both A and C are at the same level
C. Pulmonary artery
In the three-vessel view, the vessels are anteriorly/posteriorly related, not superiorly/inferiorly. Thus if you drew a line from anterior to posterior, the arrangement would be pulmonic artery-aorta-superior vena cava. The largest vessel would be the pulmonary artery, the aorta would be next largest, and the superior vena cava would be the smallest.
List in order the vessels in the three-vessel view from largest diameter to the smallest diameter in the normal thorax:
A. PA>SVC>AO
B. AO>PA>SVC
C. SVC>AO>PA
D. AO>SVC>PA
E. PA>AO>SVC
E. PA>AO>SVC
In the normal heart, the pulmonary artery should be larger than the aorta because the right ventricle ejects the majority of the blood flow, thereby increasing the diameter of the pulmonary artery compared to the aorta. The aorta is larger than the superior vena cava for the same reason. The higher the blood volume, the larger the diameter.
To what vessel is the arrow pointing int the image?
A. Pulmonary artery
B. Ductus arteriosus
C. Aortic Arch
D. Inferior vena cava
E. Superior vena cava
C. Aortic arch
The aortic arch has the classic “candy cane” appearance. The aortic arch should be seen exiting the fetal heart in the center of the fetal chest, giving rise to the head and neck vessels.
Number 1 represents the:
A. Aorta
B. Superior vena cava
C. Main pulmonary artery
D. Ductus arteriosus
E. Inferior vena cava
B. Superior vena cava
Number 2 represents the:
A. Aorta
B. Superior vena cava
C. Main pulmonary artery
D. Ductus arteriosus
E. Inferior vena cava
A. Aorta
Number 3 represents the:
A. Aorta
B. Superior vena cava
C. Main pulmonary artery
D. Ductus arteriosus
E. Inferior vena cava
C. Main pulmonary artery
What cardiac heart view was used to acquire the above image?
A. Long-axis view of the aorta
B. Three vessel view
C. Short-axis view of the great arteries
D. Long-axis view of the pulmonary artery
E. Five vessel view
B. Three-vessel view
Number 1 represents:
A. Innominate artery
B. Left common carotid artery
C. Left subclavian artery
D. Right pulmonary artery
E. Superior vena cava
C. Left subclavian artery
Number 2 represents:
A. Innominate artery
B. Left common carotid artery
C. Left subclavian artery
D. Right pulmonary artery
E. Superior vena cava
B. Left common carotid artery
Number 3 represents:
A. Innominate artery
B. Left common carotid artery
C. Left subclavian artery
D. Right pulmonary artery
E. Superior vena cava
A. Innominate artery
Number 4 represents the:
A. Right atrium
B. Left atrium
C. Superior vena cava
D. Right pulmonary artery
E. Persistent left superior vena cava
D. Right pulmonary artery
Number 1 represents the:
A. Left atrium
B. Right atrium
C. Foramen ovale
D. Coronary sinus
E. Pulmonary veins
B. Right atrium
Number 2 represents the:
A. Left atrium
B. Right atrium
C. Foramen ovale
D. Coronary sinus
E. Pulmonary veins
C. Foramen ovale
Number 3 represents the:
A. Left atrium
B. Right atrium
C. Foramen ovale
D. Coronary sinus
E. Pulmonary veins
A. Left Atrium
Number 1 represents the:
A. Left ventricle
B. Right ventricle
C. Moderator band
D. Foramen ovale
E. Pulmonary veins
C. Moderator band
Number 2 represents the:
A. Right Ventricle
B. Left Ventricle
C. Tricuspid valve
D. Mitral valve
E. Moderator band
A. Right ventricle
Number 3 represents the:
A. Right ventricle
B. Left ventricle
C. Tricuspid valve
D. Mitral valve
E. Moderator band
C. Tricuspid valve