Julien Christian Barbot,Sunil Goraksha Patil,Klaus J. Kirchberg,Steven M. Shea
申请号：
US13627171
公开号：
US08880149B2
申请日:
2012.09.26
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Localization of a coil is provided for magnetic resonance (MR)-guided intervention. A multi-scale decomposition and characteristic transitions in the power spectra for the coil are used to determine a distribution of likelihood of the coil being at each of various locations and/or to determine a confidence in the position determination. For example, the power spectra along each axis is used to generate a likelihood distribution of the location of the coil. The power spectra are decomposited at different scales. For each scale, the modulus maxima reflecting transitions in the power spectra are matched using various criteria. A likelihood is calculated for each of the matched candidates from characterizations of the matched candidates. The likelihood distribution is determined from a combination of the likelihoods from the various scales.
