Reference-less MR thermometry on pre-clinical thiel human cadaver for liver surgery with MRgFUS.
Purpose: Reference-less MR thermometry can be a promising technique for temperature mapping during liver treatment with Magnetic Resonance-guided Focused Ultrasound (MRgFUS), as it is more robust to breathing motion than Proton Resonance Frequency MR thermometry. However, there is a lack of a pre-cl...
| Publicado en: | Minimally Invasive Therapy & Allied Technologies Vol. 28; no. 1; pp. 15 - 22 |
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| Autores principales: | , , |
| Formato: | diagnostic images equations & formulas research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Fe2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=134871416&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 134871416 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13645706 J4S jtl: Minimally Invasive Therapy & Allied Technologies issn: 13645706 maglogo: Y pubinfo: dt: Fe2019 vid: 28 iid: 1 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 134871416 134871416 134871416 10.1080/13645706.2018.1470985 134871416 ppf: 15 ppct: 7 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Reference-less MR thermometry on pre-clinical thiel human cadaver for liver surgery with MRgFUS. aug: au: Karakitsios, Ioannis Mihcin, Senay Melzer, Andreas affil: Institute for Medical Science and Technology, University of Dundee, Dundee, Scotland, UK sug: subj: Liver Surgery Cadaver Thermometers Magnetic Resonance Imaging Methods Ultrasonography Methods Human Algorithms ab: Purpose: Reference-less MR thermometry can be a promising technique for temperature mapping during liver treatment with Magnetic Resonance-guided Focused Ultrasound (MRgFUS), as it is more robust to breathing motion than Proton Resonance Frequency MR thermometry. However, there is a lack of a pre-clinical model for repeatable testing of reference-less thermometry. The purpose of this work was to verify the explanted Thiel embalmed human liver and whole Thiel embalmed human cadaver for application of a custom made reference-less thermometry algorithm during MRgFUS sonication. Material and methods: Phase maps were generated during sonication as an input to the algorithm. A square Region-of-Interest (ROI) was designed around the heated area. The ROI was interpolated using a two-dimensional polynomial to the surrounding phase map to calculate the background phase. Results: Using the phase information from the images, the temperature rise was measured. Validation of the methodology showed accordance of temperatures with actual temperatures. Conclusions: The explanted liver and the whole cadaver constitute a promising and feasible model to study reference-less techniques for thermometry during MRgFUS, before clinical trials. pubtype: Academic Journal doctype: diagnostic images equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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