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Determination of the Lesion Size in Laser-Induced Interstitial Thermal Therapy (LITT) using a Low-Field MRI.

Abstract : This study aimed to compare MR thermal mapping during Laser-induced Interstitial Thermal Therapy (LITT) to thermal lesions observed macroscopically, in order to estimate the 3D size of the coagulative necrosis. Laser irradiation was performed ex-vivo with a 980 nm laser in pig liver in a open low-magnetic field (0.2T) scanner. The laser light was transmitted through a 1040/600 ¿m (outer/core diameter) bare-tip silica fiber. The laser energy was applied on a pulsed mode (10 s laser-on, 10 s laser-off) for 12 minutes, power: 6W, energy: 2160 J. MR thermal mapping used T1 method for its simplicity and its efficiency at low magnetic field.
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https://www.hal.inserm.fr/inserm-00192852
Contributor : Romain Viard <>
Submitted on : Thursday, November 29, 2007 - 3:21:05 PM
Last modification on : Wednesday, June 10, 2020 - 6:16:08 PM
Long-term archiving on: : Monday, April 12, 2010 - 5:31:54 AM

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Romain Viard, Aline Emptaz, Berengere Piron, Philippe Rochon, Benjamin Wassmer, et al.. Determination of the Lesion Size in Laser-Induced Interstitial Thermal Therapy (LITT) using a Low-Field MRI.. Conference proceedings : .. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, Institute of Electrical and Electronics Engineers (IEEE), 2007, 1, pp.214-7. ⟨10.1109/IEMBS.2007.4352261⟩. ⟨inserm-00192852⟩

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