Advanced Apps Cardiac Flashcards
Which of the following sequences is best suited for cardiac imaging?
Echo planar imaging
EPI (echo planar imaging) is best suited for cardiac imaging due to the capability of acquiring images in a fraction of a second.
To minimize pulsatile flow motion artifacts, cardiac images are acquired by:
Attaching ECG leads, monitoring the cardiac cycle, and triggering the sequence from each R wave
The most anterior chamber of the heart is the:
Right ventricle
The most anterior chamber of the heart is the Right ventricle
The most posterior chamber of the heart is the:
Left atrium
The chamber of the heart with the thickest myocardium is the:
Left ventricle
The chamber of the heart with the thickest myocardium is the left ventricle
The valve that prevents blood from flowing back into the left atrium from the left ventricle is known as the:
Mitral or bicuspid valve
The fastest vessel for carrying blood is the:
Aortic Arch
Where do the coronary arteries originate from?
Aortic root
Both of the coronary arteries originate from the left side of the heart at the beginning (aortic root) of the aorta, immediately above the aortic valve.
The human heart has _____ chambers.
Four
Which chamber of the heart does the pulmonary vein rise from?
Left atrium
Which of the following parameters would affect a cardiac function study?
Heart rate
Image 66 is a _________ view of a Cardiac MRI
4 chamber
Heart Rate 80bpm, Trigger delay 50ms, Trigger window 10%, what is the available imaging time?
625 ms
Heart Rate 80bpm, Trigger delay 50ms, Trigger window 10%, what is the available imaging time? 60000 ? 80 = 750ms. 750 ? (75<10% of 750> + 50—125) = 625 ms total available imaging time.
Calculate the available imaging time for a patient with a HR 60 beats/min, trigger window 10% and trigger delay of 50ms.
850 ms
Calculate the effective TR for a patient with a heart rate of 60 beats / min.
1000 ms
If the heart rate is 60 beats per minute, the R-R interval (effective TR) would be calculated as such: 60,000 milliseconds (60 seconds per minute, and there are 1000 milliseconds per second) ? 60 (heart rate) which = 1000 milliseconds TR.
