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Adaptive spatial calibration of a 3D ultrasound system
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10.1118/1.3373520
/content/aapm/journal/medphys/37/5/10.1118/1.3373520
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/37/5/10.1118/1.3373520

Figures

Image of FIG. 1.
FIG. 1.

Overall view of the various components of image guidance involving freehand tracked ultrasound. At the top is the 3D tracker. The lower left image shows the ultrasound scanhead, its rigidly coupled tracker, and the image it produces. The lower middle image shows a patient and the tracker coupled to the head clamp in the OR. The lower right images show the preoperative MRI imaging study. The arrows indicate how the various frames of reference are related and the respective transformation matrices that are involved. The corresponding frames of reference are also shown (f) near each image.

Image of FIG. 2.
FIG. 2.

3D ultrasound and MRI imaging data are merged. This image shows a patient’s head intersected by the three principal planes from the MRI and the overlapping 3D ultrasound planes visible as a triangular overlap in the saggital and coronal planes and a smaller rectangular image in the axial plane. Features that are visible in both imaging modalities align properly due to the correct spatial co-registration.

Tables

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Matlab code:

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TABLE I.

Mean error by scales.

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/content/aapm/journal/medphys/37/5/10.1118/1.3373520
2010-04-22
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Adaptive spatial calibration of a 3D ultrasound system
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/37/5/10.1118/1.3373520
10.1118/1.3373520
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