This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ULTRASOUND, Subject name: Radiology
HIFU stands for 
Select and explain. 
A. High Intensity Fluoroscopic Ultrasound, B. High Intensity Focused Ultrasound, C. High Interval Fractionated Ultrasound, D. High Interference Fragmented Ultrasound
B: High Intensity Focused Ultrasound
Answer: B: High Intensity Focused Ultrasound 
Explanation: HIFU stands for High-Intensity Focused Ultrasound. HIFU uses High Intensity Focused Ultrasound beam in the treatment of uterine fibroids and other lesions. it acts due to the thermal, mechanical and cavitational effects of the high-intensity Ultrasound beam in tissues.