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Real-time image registration for prostate biopsy |
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Standard 3D ultrasound probe do not allow real-time acquisition of
volumes. This is why we develop a new method for registration of a “live” 2D image
of the medical gesture (for instance a prostate biopsy) to a reference
volume. Our hybrid registration method simultaneously maximizes the
similarity of 2D and 3D features automatically extracted SIFT, Harris corner
for instance – cf. image) and minimizes the distance of paired features. We
propose a variant of ICP. It has been extensively tested
on real clinical data. Work in progress concerns the real-time guidance of
the clinician using such information. |
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Registration example. (a) 2D Image acquired during a biopsy (the red
arrow shows the biopsy needle). (b) Corresponding image extracted from a
reference 3D image after registration (residual error after registration
1.48mm; before registration 9.31mm). (c) Image extracted fro
the 3D image using the « gold standard » transformation. |
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Collaborations : urology departments from APHP La Pitié Salpétrière (Pr Mozer) and Grenoble
University (Dr Fiard,Pr Descotes)
hospitals. KOELIS company Funding (running) : Region ARA ProNavIA project,
Institute MIAI@Grenoble-Alpes, labex
CAMI |
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Status : ACTIVE Post-doc Clément Beitone and new AI-based
approaches, PhD of Tamara Dupuy. |
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References : Selmi, S. Y., Promayon,
E., & Troccaz, J. (2016, August). 3D-2D ultrasound feature-based
registration for navigated prostate biopsy: A feasibility study. In Engineering
in Medicine and Biology Society (EMBC), 2016 IEEE 38th Annual International
Conference of the (pp. 4109-4112). (pdf) |
