Spatial and Temporal Resolution

— includes axial, lateral, elevational resolution

spatial resolution

— is the same as frame rate

temporal resolution

— is the resolution of reflectors that are parallel to the beam

axial resolution

axial resolution is dependent on —, with a shorter pulse equating to better axial resolution

SPLShorter pulse length

the higher that operating —, the better the axial resolution

frequency

the higher the operating frequency, the — the the penetration ability

worse

— involves reflectors perpendicular to the beam and is determined by the width of the beam

lateral resolution

the best lateral resolution occurs when the beam is the —, which is the region of focal zone

narrowest

the width of the beam is called the:

slice thickness or elevational plane

— occurs when there is poor elevational resolution

slice thickness artifact

— is another way of saying frame rate, or the number of images (frames) produced per second

temporal resolution

the several factors that influence frame rate

depth, width, number of focal zones, use of color doppler

the more number of focal zones the — the temporal resolution gets

worse