In radio we are seeing phased arrays and software defined systems becoming more popular.
Why can't we expand the resolution and increase the bandwidth with ultrasound as well using the same ideas.
Wouldn't we be able to get a more clear tomographic pictures if we used many receivers places around the body and layered different frequencies? I'm especially wondering why not use lower frequencies for deeper penetration, using phased arrays to offset the loss in resolution.
A key advantage of US over other imaging modalities is portability. A key disadvantage is resolution with depth. Tomographic ultrasound systems exist, but if one is going to go with a bulky machine you might as well go with CT or MRI.
For what procedures are the current resolution limitations inadequate? What would be the cost difference towards a machine that provides adequate resolution?
In radio we are seeing phased arrays and software defined systems becoming more popular.
Why can't we expand the resolution and increase the bandwidth with ultrasound as well using the same ideas.
Wouldn't we be able to get a more clear tomographic pictures if we used many receivers places around the body and layered different frequencies? I'm especially wondering why not use lower frequencies for deeper penetration, using phased arrays to offset the loss in resolution.