Four Bar Spatial Resolution Analysis

Calculates the spatial resolution in terms of the Full Width Half Maximum (FWHM) and Full Width Tenth Maximum (FWTM) of a Gamma Camera image using the four bar method.

While the default settings are usually sufficient certain settings can be changed as given in Spatial Resolution settings.

Please see Four Bar Spatial Resolution in the Pylinac documentation for more information.

A Gaussian fit is done to the peaks and the FWHM and FWTM determined from the fit. The FWTM may be unreliable for non Gaussian distributions.