Quasistatic Solutions versus Full-Wave Solutions of Single-Channel Circular RF Receive Coils on Phantoms of Varying Conductivities at 3 Tesla

Table 1

Total noise (Ohms).

Circular loop diameter	3 cm	4 cm	5 cm	6 cm	7 cm	8 cm	9 cm	10 cm
Quasistatic (Q) calculations
0.3 S/m	1.51	1.77	2.21	2.88	3.82	5.05	6.63	8.56
0.6 S/m	1.65	2.16	3.02	4.33	6.18	8.63	11.8	15.6
0.9 S/m	1.79	2.54	3.82	5.78	8.54	12.2	16.9	22.6
Q/B ratios
0.3 S/m	3.02	1.36	0.84	0.61	0.46	0.39	0.31	0.27
0.6 S/m	2.58	1.58	1.09	0.89	0.78	0.73	0.67	0.65
0.9 S/m	2.49	1.59	1.17	1.07	0.99	0.95	0.89	0.92
Full-wave (FW) calculations
0.3 S/m	0.48	1.13	2.39	4.52	7.99	13.2	20.9	31.9
0.6 S/m	0.53	1.21	2.49	4.48	7.52	11.8	17.8	25.6
0.9 S/m	0.62	1.41	2.86	5.04	8.26	12.6	18.5	25.8
FW/B ratios
0.3 S/m	0.96	0.87	0.91	0.97	0.97	1.01	0.99	1.00
0.6 S/m	0.83	0.88	0.9	0.92	0.95	0.99	1.01	1.07
0.9 S/m	0.86	0.88	0.87	0.93	0.96	0.98	0.97	1.04
Benchtop (B) measurements
0.3 S/m	0.50	1.30	2.63	4.67	8.26	13.1	21.2	31.9
0.6 S/m	0.64	1.37	2.76	4.86	7.93	11.9	17.7	24.0
0.9 S/m	0.72	1.60	3.27	5.42	8.60	12.8	19.0	24.7