ECHOCARDIOGRAPHY 2D and M MODE IMAGING

ECHOCARDIOGRAPHY 2D and M MODE IMAGING

ECHOCARDIOGRAPHY 2D and M MODE IMAGING - Two-dimensional echo or B mode allow us to demonstrate the spatial relationship of structure for more accurate anatomic diagnosis of abnormalities of the heart and great vessels. It provides the tomographic images of the heart.

It displays the return echoes as dots of varying brightness

The brightness of the dot represents the strength of the return echo

It provides the tomographic images of the heart by directing the transducer in various planes. Indications for 2 D echo are increasing with their increasing diagnostic accuracy. Some of these are to screen newborns and small infants who appear to have cardiac defects, to rule out cyanotic congenital heart disease in newborns with clinical findings of PPHN and persistent fetal circulation syndrome, to diagnose PDA or other heart defects or ventricular dysfunction in a premature infant who is on a ventilator for pulmonary disease, To confirm the diagnosis in infants and children with atypical findings of certain defects.

M Mode is used in the instance when documentation of the movement of the reflector is needed, such as looking at the motion of a heart valve or myocardial wall thickness during systole and diastole

M mode is often used in obstetrics and cardiac applications. With m mode imaging the motion of reflectors along a single scan line is analyzed, The m mode tracing is one scan line represented over time with depth along the y-axis and time along the x-axis

This is sometimes referred to as ice-pick imaging because of the very narrow field of view.M mode echo helpful in the detection of pericardial fluid, left ventricular systolic function, Study of the motion of the cardiac valve, for example, M V P, mitral stenosis and dimension of cardiac chambers and vessels, the thickness of interventricular septum and free walls


Example of m mode in echocardiogram m mode at the 

aortic valve level

M mode at aortic valve

mitral level

M mode at mitral valve

at the left ventricle

M mode at left ventricle


You can also refer the topic in the link

https://www.youtube.com/channel/UCRrYRylZdS67_kbATQrLQqA

 


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