ArticleMagnetic resonance in medicine2026
Temperature Mapping During MR-Guided Cryoablation Using a FLORET UTE Sequence.
Article in Magnetic resonance in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Temperature Mapping During MR-Guided Cryoablation Using a FLORET UTE Sequence.Magnetic resonance in medicine · 2026Article
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7 authors.
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Abstract
purposeTo implement a three-dimensional FLORET-UTE sequence for rapid MR thermometry during cryoablation and to validate voxel-wise temperature maps against fiber-optic probes in ex vivo bovine liver.
methodsA FLORET-UTE trajectory (TE 50 μs, 1.6 mm isotropic, 18 s/volume) was executed on a 3 T scanner while dry-ice cryoablation was applied to liver phantoms. Four fiber-optic sensors provided reference temperatures. Magnitude signal was normalized to baseline and fitted to a mono-exponential temperature model in the first experiment; the unchanged model was applied prospectively to the second dataset. Images were reconstructed offline with
resultsCalibration yielded a strong signal-temperature relationship (
conclusionFLORET-UTE enables quantitative 3-D MR thermometry of frozen tissue with < 20 s temporal resolution and < 2°C accuracy, overcoming the speed limitations of earlier UTE methods. The technique is a promising candidate for real-time MR-guided cryoablation and warrants in vivo evaluation.
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