Magnetic resonance-guided focused ultrasound treatment of facet joint pain: summary of preclinical phase

Table 1 Sonication parameters used in the facet joint phantom experiment

Sonication number	Energy (J)	Temperature at the focal point (°C)	Average temperature in the vicinity of the intervertebral foramen (°C)
1	300	61	38
2	300	65	38
3	300	73	38
4	300	84	37
5	300	62	38
6	300	59	39
7	300	66	37
8	300	65	38
9	300	71	39
10	600	83	38
11	600	67	37
12	900	72	39
13	900	75	42
14	1,200	78	43
15	1,200	64	41

Summary of the sonication parameters used in the phantom experiment, including acoustic energy delivered, the temperature measured at the focal point on the targeted facet joint, and the temperature measured in the nontargeted intervertebral foramina, located in the far field of the acoustic beam.

ISSN: 2050-5736