Table. 3.

MR temperature measurements acquired in 16 rabbits treated with MR-HIFU hyperthermia. MR temperature mapping used both prospective and retrospective corrections, with pre-heating and F₀ dynamic stabilization, and combined drift correction algorithm. Temperature is well maintained at 41–45°C in treatment cell for intended duration (Time in Range). During therapy, mean temperature in treatment cell is 42.3±0.7°C, with T10 and T90 of 43.3±0.8°C and 41.4±0.7°C. The rectum temperature is not affected by treatment (37.1±0.3°C, with a temporal SD of 0.3±0.2°C).

Therapy Duration	# of Animals	Time in Range	Heated ROI (°C)			Rectum Temperature (°C)
			T-mean	T10	T90
10min	5	10.8min	42.3±0.4°C	43.3±0.6°C	41.2±0.4°C	36.8±0.3°C
20min	6	20.8min	42.1±0.8°C	42.9±1.0°C	41.1±0.7°C	37.3±0.2°C
40min	5	40.4min	42.4±0.4°C	43.3±0.5°C	41.2±0.5°C	37.3±0.3°C
Average	NA	NA	42.2±0.6°C	43.2±0.7°C	41.2±0.6°C	37.1±0.3°C