Guinea Pig Echocardiogram

I obtained a short axis view of the aortic valve first with a linear probe, due to the fact that I was scanning a tiny animal and wanted the highest frequency and best resolution in the nearfield as possible. 

The second video is also with a linear probe, but is the long-axis view.

The third video is both short and long axis views using a high frequency phased array probe. You can see that the image quality is inferior to the linear probe, because it does not perform was well in the nearfield as a linear transducer.

Youtube Video