What question did this study set out to answer?

To assess the effectiveness of dual-energy CT fusion imaging in improving ice-ball visualization during spinal cryoablation.

April 24, 2026European Radiology Experimental0 citationsOpen Access

Dual-energy CT fusion imaging improves ice-ball visualization in bone during spinal cryoablation in porcine cadavers

DDDjamel DabliUniversité de Montpellier WNWissem NabiUniversité de Montpellier PVPierre VialaUniversité de Montpellier

Key Points

To assess the effectiveness of dual-energy CT fusion imaging in improving ice-ball visualization during spinal cryoablation.
Used porcine cadavers to perform spinal cryoablation.
Compared ice-ball visualization on virtual non-calcium and fusion images against MRI.
Evaluated contour quality of the ice-ball in bone using imaging techniques.
Ice-ball was only detectable on VNCa images with poor delineation quality.
Fusion images significantly improved the visualization and contour definition of the ice-ball.
Findings were confirmed through comparatives with MRI imaging.

Abstract

The lack of visibility of the ice-ball in the bone during cryoablation represents a limitation for the safety of adjacent structures at risk. In bone, the ice-ball was detectable only on virtual non-calcium (VNCa) images, but the quality of its contour delineation was poorer. Electron density and VNCa fusion images improved ice-ball visualization and delineation in bone, as confirmed by comparison with MRI.

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Cite This Study

Dabli et al. (Wed,) studied this question.

synapsesocial.com/papers/69eb0aeb553a5433e34b4d54 https://doi.org/https://doi.org/10.1186/s41747-026-00711-4

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