An image registration approach to automated calibration for freehand 3D ultrasound

S L Delp (Editor), A M DiGioia (Editor), B Jaramaz (Editor), G P Penney, D L G Hill, D J Hawkes

Research output: Chapter in Book/Report/Conference proceedingConference paper

73 Citations (Scopus)

Abstract

Describes an image registration approach to calibration for free-hand 3D ultrasound. If a conventional ultrasound probe is tracked using a position sensor, and the relation between this sensor and the 2D image plane is known, the resulting set of B-scans may be correctly compounded into an image volume. Calibration is the process of determining the transformation (rotation, translation and optionally image scaling) that maps B-mode image slice coordinates to points in the coordinate system of the tracking sensor mounted on the ultrasound probe. A set of 2D ultrasound images of a calibration phantom is obtained using a tracked ultrasound probe. Calibration is performed by searching for the calibration parameters that maximise the similarity between a model of the calibration phantom, which can be an image volume or a geometrical model, and the ultrasound images transformed into the coordinate space of the phantom. Validation of this calibration method is performed using a gelatin phantom. Measures of the calibration reproducibility, reconstruction precision and reconstruction accuracy are presented for this technique, and compared to those obtained using a conventional cross-wire phantom. Registration-based calibration is shown to be a rapid and accurate method of automatic calibration for free-hand 3D ultrasound. (11 References).
Original languageEnglish
Title of host publicationConference Proceedings - Lecture Notes in Computer Science (LNCS) Vol# 1935
Place of Publication Berlin, Germany
PublisherSpringer
Pages462 - 471
Number of pages10
ISBN (Print)3540411895
Publication statusPublished - 2000
EventMICCAI 2000: Medical Image Computing & Computer Assisted Intervention - 3rd International Conference - Pittsburgh, PA, United States
Duration: 11 Oct 200014 Oct 2000

Conference

ConferenceMICCAI 2000: Medical Image Computing & Computer Assisted Intervention - 3rd International Conference
Country/TerritoryUnited States
CityPittsburgh, PA
Period11/10/200014/10/2000

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