Murat Aksoy1, Christoph Forman1,
Matus Straka1, Samantha Jane Holdsworth1, Stefan Tor
Skare1,2, Joachim Hornegger3, Roland Bammer1
1Department of Radiology, Stanford
University, Stanford, CA, United States; 2Karolinska Institute,
Stockholm, Sweden; 3Computer Science,
Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
Optical
systems have been proposed as a way to achieve rigid head motion correction
with minimal changes to the pulse sequence. However, the usability of these
systems in clinical practice have been limited mostly due to the tedious
scanner-optical system cross-calibration routine that is required to link the
frame of references of the optical system and the MR scanner. In this study,
we propose a fast cross-calibration routine that is easy and takes only a
couple of seconds. The variability of the scanner-camera cross calibration
parameters with varying sequence parameters was investigated.