Real-time quality control of tracked ultrasound.

Emad Boctor, Iulian Iordachita, Gabor Fichtinger, Gregory Hager

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The overwhelming majority of intra-operative hazard situations in tracked ultrasound (US) systems are attributed to failure of registration between tracking and imaging coordinate frames. We introduce a novel methodology for eal-time in-vivo quality control of tracked US systems, in order to capture registration failures during the clinical procedure. In effect, we dynamically recalibrate the tracked US system for rotation, scale factor, and in-plane position offset up to a scale factor. We detect any unexpected change in these parameters through capturing discrepancies in the resulting calibration matrix, thereby assuring quality (accuracy and consistency) of the tracked system. No phantom is used for the recalibration. We perform the task of quality control in the background, transparently to the clinical user while the subject is being scanned. We present the concept, mathematical formulation, and experimental evaluation in-vitro. This new method can play an important role in guaranteeing accurate, consistent, and reliable performance of tracked ultrasound.

Original languageEnglish (US)
Title of host publicationMedical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention
Pages621-630
Number of pages10
Volume8
EditionPt 1
StatePublished - 2005

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Quality Control
Mathematical Concepts
Calibration
In Vitro Techniques

Cite this

Boctor, E., Iordachita, I., Fichtinger, G., & Hager, G. (2005). Real-time quality control of tracked ultrasound. In Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention (Pt 1 ed., Vol. 8, pp. 621-630)

Real-time quality control of tracked ultrasound. / Boctor, Emad; Iordachita, Iulian; Fichtinger, Gabor; Hager, Gregory.

Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Vol. 8 Pt 1. ed. 2005. p. 621-630.

Research output: Chapter in Book/Report/Conference proceedingChapter

Boctor, E, Iordachita, I, Fichtinger, G & Hager, G 2005, Real-time quality control of tracked ultrasound. in Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Pt 1 edn, vol. 8, pp. 621-630.
Boctor E, Iordachita I, Fichtinger G, Hager G. Real-time quality control of tracked ultrasound. In Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Pt 1 ed. Vol. 8. 2005. p. 621-630
Boctor, Emad ; Iordachita, Iulian ; Fichtinger, Gabor ; Hager, Gregory. / Real-time quality control of tracked ultrasound. Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. Vol. 8 Pt 1. ed. 2005. pp. 621-630
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