title: Automated 3D freehand ultrasound calibration with real-time accuracy control.
abstract: 3D ultrasound (US) is an emerging new imaging technology that appeals to more and more applications in intraoperative guidance of computer-assisted surgery. In a freehand US imaging system, US probe calibration is typically required to construct a 3D image of the patient's anatomy from a set of 2D US images. Most of the current calibration techniques concern primarily with the precision and accuracy. However, for computer-assisted surgeries that may require a calibration task inside the operating room (OR), many other important aspects have to be considered besides accuracy. In this paper, we propose a novel system for automated calibration that is optimized for the OR usage with real-time feedback and control of the calibration accuracy. We have also designed a novel N-wire phantom, with greatly reduced complexity to facilitate mass production without compromising the accuracy and robustness.
authors.affiliation: School of Computing, Queen's University, Kingston, ON, Canada.
authors.forename: Thomas Kuiran
authors.initials: TK
authors.lastname: Chen
authors.forename: Purang
authors.initials: P
authors.lastname: Abolmaesumi
authors.forename: Adrian D
authors.initials: AD
authors.lastname: Thurston
authors.forename: Randy E
authors.initials: RE
authors.lastname: Ellis
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D002138:Calibration; D003199:Computer Systems; D019560:Echocardiography, Three-Dimensional / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D007089:Image Enhancement / Q000295:instrumentation* / Q000592:standards; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000592:standards; D010363:Pattern Recognition, Automated / Q000379:methods; D019047:Phantoms, Imaging / Q000592:standards*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity