Most common method of assessment of pulmonary hypertension by Doppler echocardiography is by using: A: Forward velocity across the tricuspid valve B: Reverse velocity across the tricuspid valve
Bernoulli equation for calculation of pressure gradient by Doppler echocardiography is: A: P=2V2 B: P=3V2 C: P=4V2 D: P=4V3 Correct answer: C: P=4V2 Original Bernoulli equation is a
Relation of Nyquist limit to Pulse Repetition Frequency (PRF): A. Nyquist limit is half the pulse repetition frequency B. Nyquist limit is twice the pulse repetition frequency C.
The ultrasound reflected from red blood cells moving away from the transducer has: A. Higher frequency and is colour coded red B. Higher frequency and colour coded blue
Doppler echocardiography is best done with the ultrasound beam: A. Parallel to the direction of blood flow B. Perpendicular to the direction of blood flow C. At an
Speed of ultrasound in body tissues is around: A. 20,000 meters per second B. 1500 meters per second C. 340 meters per second D. 10,000 meters per second
Adult transthoracic echocardiography uses frequencies in the range of: A. 1-2 MHz B. 2.5-5 MHz C. 5.5-6.5 MHz D. 7-10 MHz Correct answer: B. 2.5-5 MHz Higher frequency
Arterial switch operation is the ideal corrective surgery for D-transposition of great arteries. I has to be done quite early in life before the left ventricular muscle mass
It is an operation used for certain types of congenital heart disease, typically for tricuspid atresia. Fontan surgery is basically a univentricular type of repair in which lungs
