Cardiac Flashcards
: Which of the following sequences is best suited for cardiac imaging?
Echo planar imaging
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
left atrium
The most posterior chamber of the heart is the:
right 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
: 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
Letter A in Image 66 is pointing to:
Right ventricle
Letter B in Image 66 is pointing to:
Ventricular septal wall
Letter C in Image 66 is pointing to
Apex
Letter D in Image 66 is pointing to:
Left ventricle
Letter E in Image 66 is pointing to:
Mitral valve
: Letter F in Image 66 is pointing to:
Descending aorta
Letter G in Image 66 is pointing to:
Left atrium
Letter H in Image 66 is pointing to:
Right atrium
Letter K in Image 66 is pointing to:
Tricuspid valve
The largest ventricle in the heart is the _______ and is identified by Letter ____ in Image 66.
Left ventricle; D
The most anterior chamber of the heart is the __________ and is identified by letter _____ in Image 66
Right ventricle; A
The most posterior chamber of the heart is the ______ and is identified by letter ____ in Image 66
Left atrium; G
The pulmonary vein returns oxygenated blood back to the heart into the ____________, identified by Letter ____ in Image 66.
Left atrium; G
Letter A in Image 67 represents the __________ segment of the left ventricle:
Apex
Letter B in Image 67 represents the _________ segment of the left ventricle
Apical
Letter C in Image 67 represents the __________ segment of the left ventricle
Mid-plane
Letter D in Image 67 represents the _________ segment of the left ventricle.
Basal
Letter E in Image 67 is pointing to:
Mitral valve
Letter F in Image 67 is pointing to:
Pulmonary vein
The __________ returns oxygenated blood back to the heart into the left atrium, and is identified by Letter ____ in Image 67.
: Pulmonary vein; F
: Image 68 is an example of a set of _________ blood images acquired in the __________ view/plane.
Black; axial
Letter A in Image 68 is pointing to
Left ventricle
Letter B in Image 68 is pointing to:
Interventricular septum
Letter C in Image 68 is pointing to
Descending aorta
Letter D in Image 68 is pointing to:
Right ventricle
Letter E in Image 68 is pointing to:
Left atrium
Letter F in Image 68 is pointing to:
Right atrium
Image 69 is an example of a _________ blood image acquired in the __________ view/plane
Bright; short axis
Letter A in Image 69 is pointing to
Papillary muscles
: Letter B in Image 69 is pointing to
Left ventricle
Letter C in Image 69 is pointing to
Right ventricle
Letter D in Image 69 is pointing to
Myocardium
Image 70 is an example of a _________ weighted image acquired in the __________ view/plane
T2 STIR; short axis
Letter A in Image 70 is pointing to:
Lung
Letter B in Image 70 is pointing to:
Myocardium
Letter C in Image 70 is pointing to:
Right ventricle
: Letter D in Image 70 is pointing to:
Left ventricle
The ___________ valve lies between the left atrium (LA) and the left ventricle (LV).
Mitral
Heart Rate 80bpm, Trigger delay 50ms, Trigger window 10%, what is the available imaging time?
625 ms
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.
Calculate the effective TR for a patient with a heart rate of 85 beats / min.
706 ms
60,000 / 85 = ~706
Which sequence would be best suited to evaluate a cardiac infarction?
Perfusion
