Regional hyperthermia of the abdomen, a pilot study towards the treatment of peritoneal carcinomatosis

Radiation Oncology

Table 2 Analysis of the SAR and temperature distribution in the abdomen

SIGMA-60	SAR ₅₀ (abdomen) (W/kg)	T ₉₀ (°C)	T ₅₀ (°C)	T _max (°C)	SIGMA-Eye	SAR ₅₀ (abdomen) (W/kg)	T ₉₀ (°C)	T ₅₀ (°C)	T _max (°C)
70 MHz, 700 W, −2 cm	45	38,3	40,1	41,8	100 MHz, 1500 W	35	40,7	41,6	43,0
90 MHz, 600 W, −3 cm	42	38,3	40,6	42,7	100 MHz, 1600 W	36	39,9	41	42
90 MHz, 500 W	42	38,1	39,5	41,2	100 MHz, 1500 W	20	39,1	39,8	41,2
90 MHz, 600 W	43	38,2	40,7	42,2	100 MHz, 1500 W	40	41	41,9	42,8
90 MHz, 500 W, −3 cm	52	39,1	41	43,7	Mean value	33	40,2	41,1	42,2
70 MHz, 500 W, −4 cm	32	38	39,5	41,3
90 MHz, 550 W	40	37,6	39,8	42,2
Mean value	42	38,2	40,2	42,2

The applicator position is centered on the central plane (navel) as shown in Fig. 1. Distal aberrations (in cm) of applicator position to central position (required for a few patients treated with Sigma-60) are listed in the left column
SAR specific absorption rate

ISSN: 1748-717X