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Journal articles
Trans-cranial focused ultrasound without hair shaving: feasibility study in an ex vivo cadaver model
Abstract : In preparing a patient for a trans-cranial magnetic resonance (MR)-guided focused ultrasound procedure, current practice is to shave the patient's head on treatment day. Here we present an initial attempt to evaluate the feasibility of trans-cranial focused ultrasound in an unshaved, ex vivo human head model. A human skull filled with tissue-mimicking phantom and covered with a wig made of human hair was sonicated using 220- and 710-kHz head transducers to evaluate the feasibility of acoustic energy transfer. Heating at the focal point was measured by MR proton resonance shift thermometry. Results showed that the hair had a negligible effect on focal spot thermal rise at 220 kHz and a 17% drop in temperature elevation when using 710 kHz.
Cited literature [33 references]
https://www.hal.inserm.fr/inserm-00923402
Contributor : Ed. Bmc <>
Submitted on : Thursday, January 2, 2014 - 5:07:19 PM
Last modification on : Thursday, June 24, 2021 - 3:27:09 AM
Long-term archiving on: : Saturday, April 8, 2017 - 10:20:18 AM
Contributor : Ed. Bmc <>
Submitted on : Thursday, January 2, 2014 - 5:07:19 PM
Last modification on : Thursday, June 24, 2021 - 3:27:09 AM
Long-term archiving on: : Saturday, April 8, 2017 - 10:20:18 AM