Parameters Influencing PET Imaging Features: A Phantom Study with Irregular and Heterogeneous Synthetic Lesions

Table 2

Summary of the 18F-FDG PET/CT acquisitions of the phantom, with gold standard values of each lesion.

Number of PET acquisition	Number of lesion acquired in PET	Shell type	VGS (cc)	SGS	HGS (%)	VGS excluding necrosis (cc)	L/BGS
1	1	A	6.8	0.57	0	6.8	10
	2	B	10.5	0.62	0	10.5	10
	3	C	8.5	0.49	0	8.5	10
	4	D	12.5	0.74	0	12.5	10
2	5	A	6.8	0.57	0	6.8	10
	6	B	10.5	0.62	0	10.5	10
	7	C	8.5	0.49	0	8.5	10
	8	D	12.5	0.74	0	12.5	10
3	9	A	6.8	0.57	0	6.8	10
	10	B	10.5	0.62	0	10.5	10
	11	C	8.5	0.49	0	8.5	10
	12	D	12.5	0.74	0	12.5	10
4	13	A	6.8	0.57	0	6.8	27
	14	B	10.5	0.62	0	10.5	26
	15	C	8.5	0.49	21.1	7.4	9
	16	D	12.5	0.74	12.7	11.7	25
5	17	A	6.8	0.57	0	6.8	27
	18	B	10.5	0.62	0	10.5	26
	19	C	8.5	0.49	21.1	7.4	9
	20	D	12.5	0.74	12.7	11.7	25
6	21	A	6.8	0.57	0	6.8	27
	22	B	10.5	0.62	0	10.5	26
	23	C	8.5	0.49	21.1	7.4	9
	24	D	12.5	0.74	12.7	11.7	25
7	25	A	6.8	0.57	0	6.8	12
	26	B	10.5	0.62	0	10.5	11
	27	C	8.5	0.49	21.1	7.4	4
	28	D	12.5	0.74	12.7	11.7	11
8	29	A	6.8	0.57	14.9	6.4	18
	30	B	10.5	0.62	26.2	10.5	10
	31	C	8.5	0.49	24.8	7.6	7
	32	D	12.5	0.74	62.2	8.7	9
	33	E	32.3	0.73	16.3	29.4	25
9	34	A	6.8	0.57	14.9	6.4	12
	35	B	10.5	0.62	26.2	10.5	7
	36	C	8.5	0.49	24.8	7.6	5
	37	D	12.5	0.74	62.2	8.7	6
	38	E	32.3	0.73	16.3	29.4	16