Patent · US Expired

Focused ultrasound system with MRI synchronization

US6735461B2 · kind B2 · utility

178Cited by
9References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 19, 2001
Grant dateMay 11, 2004
Priority date—
Expiry dateJan 24, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R33/4804
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Systems and methods for performing a focused ultrasound procedure monitored using magnetic resonance imaging (MRI) is provided. An MRI system uses a timing sequence for transmitting radio frequency (RF) signals and detecting magnetic resonance (MR) response signals from a patient's body in response to the RF pulse sequences. A piezoelectric transducer is driven with drive signals such that the transducer emits acoustic energy towards a target tissue region within the patient's body. Parameters of the drive signals are changed at times during the timing sequence that minimize interference with the MRI system detecting MR response signals, e.g., during transmission of RF signals by the MRI system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.