Table 4.

Results of FWHM in SPECT acquisition under each system. (a) ^99mTc formulation; (b) ¹²³I formulation.

FWHM	Center		X‐direction		Y‐direction
	Tangential	Radial	Tangential	Radial	Tangential	Radial
(a)
C‐SPECT_WEHR10	10.0	10.1	6.8	10.1	6.8	10.5
C‐SPECT_WEHR15	10.2	10.3	6.9	10.2	6.9	10.5
A‐SPECT_LEHR	10.1	10.0	7.6	10.1	7.7	10.0

	C‐SPECT_WEHR10	C‐SPECT_WEHR15	A‐SPECT_LEHR
FWHM (Average)	9.1	9.2	9.3

ASR	C‐SPECT_WEHR10	C‐SPECT_WEHR15	A‐SPECT_LEHR
Center	0.99	0.99	1.01
X‐direction	1.49	1.48	1.33
Y‐direction	1.54	1.52	1.30

FWHM	Center		x‐direction		y‐direction
	Tangential	Radial	Tangential	Radial	Tangential	Radial
(b)
C‐SPECT_WEHR	10.5	10.6	7.7	10.9	7.2	11.0
C‐SPECT_MEHRS	14.6	15.2	9.8	14.8	9.9	15.5
A‐SPECT_LMEGP	14.8	14.7	10.0	14.7	10.2	15.0

	C‐SPECT_WEHR	C‐SPECT_MEHRS	A‐SPECT_LMEGP
FWHM (Average)	9.7	13.3	13.2

Aspect ratio	C‐SPECT_WEHR	C‐SPECT_MEHRS	A‐SPECT_LMEGP
Center	0.99	0.96	1.01
x‐direction	1.42	1.51	1.48
y‐direction	1.59	1.57	1.46