Ameet Kumar Jain,Mohammad Babak Matinfar,Raymond Chan,Vijay Parthasarthy,Douglas A. Stanton
申请号：
US13582062
公开号：
US20120323111A1
申请日:
2011.02.21
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A calibration/surgical tool (90, 160) includes an electromagnetic sensor array (30) of two or more electromagnetic sensors in a known geometrical configuration. Electromagnetic tracking errors are characterized by a mapping of pre-operative absolute and relative errors based on a movement of a calibrated calibration/surgical tool (90, 160) through a pre-operative electromagnetic field. Using statistical mapping, a desired absolute error field (46) is measured either in the clinic as the part of daily quality control checks, or before the patient comes in or in vivo. A resulting error field (46) may be displayed to the physician to provide clear visual feedback about measurement confidence or reliability of localization estimates of the absolute errors in electromagnetic tracking.
