An echocardiogram can utilize one or more of four special types of echocardiography: 1  M-Mode echocardiography: This is the simplest type of echocardiography. It produces an image that is similar to a line tracing rather than an actual picture of heart structures.
I do have a band saw use it for resawing and cutting curves . Its a item you could do without but once you have one you find you use it more then you think. You do need to have a few different size (width) blades to take full advantage of the tool. herrwood is offline.
Pendulum saw or swing saw: a saw hung on a swinging arm, for the rough cross cutting of wood in a sawmill and for cutting ice out of a frozen river. Abrasive saw: a circular or reciprocating saw-like tool with an abrasive disc rather than a toothed blade, commonly used for cutting very hard materials.