Abstract #1641
Focal Position Determination in Breast MRgHIFU using 3 Tracking Coils
Bryant T. Svedin 1,2 , Michael J. Beck 1,3 , J. Rock Hadley 1,4 , Robb Merrill 1,4 , Bradley D. Bolster Jr. 5 , and Dennis L. Parker 1,4
1
Utah Center for Advanced Imaging Research,
Salt Lake City, Utah, United States,
2
Physics,
University of Utah, Salt Lake City, Utah, United States,
3
Electrical
Engineering, University of Utah, Utah, United States,
4
Radiology,
University of Utah, Salt Lake City, Utah, United States,
5
Siemens
HealthCare, Salt Lake City, Utah, United States
Treatment planning and patient safety in MR guided
focused ultrasound treatment require accurate knowledge
of the location of the ultrasound beam focus. Typical
methods of locating the focus (low power heating, ARFI)
require time and sonication. The proposed method uses 3
tracker coils rigidly attached to the transducer to
predict the location of the focus. The six degrees of
freedom transformation is calculated that realigns their
current locations to their calibration locations. This
transform is applied to the calibration focus location
to estimate its current position. This method provides
real-time determination of the focus location without
the need to sonicate.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Click here for more information on becoming a member.
