ACOUSTIC RADIATION FORCE MAGNETIC RESONANCE IMAGING

摘要

The invention provides for medical instrument (200 400) comprising a magnetic resonance imaging system (202) and a high intens ity focused ultrasound system (222). A processor (246) controls the medical instrument. Instructions cause the processor to control(100) the magnetic resonance imaging system to acquire the magnetic resonance data using a pulse sequence (254). The pulse se quence comprises an acoustic radiation force imaging pulse sequence (500 600). The acoustic radiation force imaging pulse sequence comprises an excitation pulse (512) and a multi dimensional gradient pulse (514) applied during the radio frequency excitatio n pulse for selectively exciting a region of interest (239) encompassing a target zone and at least a portion of the beam axis. The instructions cause the processor to control (102) the high intensity focused ultrasound system to sonicate the target zone d uring the acoustic radiation force imaging pulse sequence and reconstruct (104) a radiation force image (258) using the magnetic resonance data.