Table 1.

Transaxial and axial resolution of a point source in 2D and 3D kept at different radial positions

Radial position of point source	FWHM in cm				FWHM in cm
	Transaxial		Axial		Transaxial		Axial
	2D	3D	2D	3D	2D	3D	2D	3D
R = 1 cm	0.632	0.646	0.491	0.540	1.271	1.237	1.078	1.232
R = 10 cm	0.691	0.682	0.653	0.601	1.338	1.289	1.343	1.399

Transaxial - average of radial and tangential; FWHM - full width at half maximum; FWTM - full width at tenth maximum