Facts
No ultrasonographic finding can rule out aortic dissection.

However, in combination with relevant symptoms, four findings are highly suggestive of type A aortic dissection:

Facts
A dissection membrane will not always be visible with transthoracic ultrasonography in case of type A aortic dissection, but when present it is highly suggestive of dissection.

From the subcostal view, these parameters regarding left ventricular systolic function can be assessed:

Parameters
Combining the parameters of myocardial thickness/endocardial movement, valve movement and longitudinal function provides excellent information regarding left ventricular systolic function.

Views
This can be done from all cardiac views, some providing more information on the individual parameter than others.

The video below is showing all three parameters that have just been explained: Myocardial thickening, (blue) movement of the mitral valve leaflets (red) and longitudinal excursion of the annular plane (green).

From the PSAX view, this parameter regarding left ventricular systolic function can be assessed:

From the parasternal long axis view, these parameters regarding left ventricular systolic function can be assessed:

Video clips from the subcostal four-chamber view

Please note the

Video clips of the PSAX view

Notice:
In the PSAX view, it is not possible to assess longitudinal function or mitral valve opening.

However, with good image quality, the PSAX view is excellent for assessing reduction in myocardial thickening and endocardial movement as in A-D.

Facts
In the emergency setting, systolic function is classified as:

Facts
Eyeballing of left ventricular systolic function in the emergency setting is an overall estimation based on three primary parameters: