Matches in SemOpenAlex for { <https://semopenalex.org/work/W580057906> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W580057906 abstract "This thesis presents technical and methodological developments aiming tooffer a viable alternative for the treatment of digestive cancers (rectum and esophagus). Compared to the standard methods of therapy, the high intensity contact ultrasound guided by MRI is a less invasive approach. MRI offers 2 advantages: good spatial resolution, and real-time temperature control. This treatment method requires efficacy and safety. Three prototypes of RF coil integrated with ultrasound transducers were built in order to increase the spatial and temporal resolution ofthe MR images, and the accuracy of the temperature measurement. The integrated coils showed a better sensitivity compared to a standard extracorporeal coil. Anatomical (voxel 0.4x0.4x5 mm3)and thermometry (voxel 0.75x0.75x8 mm3, 2s/image) high resolution MR images were acquired in-vivo. The temperature was measured, within a radius of 20 mm from the balloon, with a standard deviation <1°C. The flow artifacts caused by the water circulating inside the cooling balloon could be shifted out of the region of interest. The temperature evolution was controlled automatically, at different depths, with one control point per beam. The controller showed a good accuracy during in-vivo experiments (standard deviation less than 5%). The phased-arrayultra sound transducer permits the successive activation of multiple beams during the same dynamic of sonication. Simulations were conducted in order to offer an optimal treatment planning for a defined tumor. A new design of ultrasound transducer with 256 elements with revolution symmetry, based on a natural geometrical focalization, was proposed." @default.
- W580057906 created "2016-06-24" @default.
- W580057906 creator A5073586442 @default.
- W580057906 date "2009-12-15" @default.
- W580057906 modified "2023-09-23" @default.
- W580057906 title "Endocavitary applicator of therapeutic ultrasound integrated with RF receiver coil for high resolution MRI-controlled thermal therapy" @default.
- W580057906 hasPublicationYear "2009" @default.
- W580057906 type Work @default.
- W580057906 sameAs 580057906 @default.
- W580057906 citedByCount "0" @default.
- W580057906 crossrefType "dissertation" @default.
- W580057906 hasAuthorship W580057906A5073586442 @default.
- W580057906 hasConcept C105795698 @default.
- W580057906 hasConcept C119599485 @default.
- W580057906 hasConcept C119666444 @default.
- W580057906 hasConcept C120665830 @default.
- W580057906 hasConcept C121332964 @default.
- W580057906 hasConcept C126838900 @default.
- W580057906 hasConcept C127413603 @default.
- W580057906 hasConcept C136229726 @default.
- W580057906 hasConcept C143753070 @default.
- W580057906 hasConcept C154945302 @default.
- W580057906 hasConcept C192562407 @default.
- W580057906 hasConcept C205372480 @default.
- W580057906 hasConcept C21822782 @default.
- W580057906 hasConcept C22679943 @default.
- W580057906 hasConcept C24890656 @default.
- W580057906 hasConcept C30403606 @default.
- W580057906 hasConcept C33923547 @default.
- W580057906 hasConcept C41008148 @default.
- W580057906 hasConcept C54170458 @default.
- W580057906 hasConcept C55494473 @default.
- W580057906 hasConcept C56318395 @default.
- W580057906 hasConcept C71924100 @default.
- W580057906 hasConcept C76155785 @default.
- W580057906 hasConceptScore W580057906C105795698 @default.
- W580057906 hasConceptScore W580057906C119599485 @default.
- W580057906 hasConceptScore W580057906C119666444 @default.
- W580057906 hasConceptScore W580057906C120665830 @default.
- W580057906 hasConceptScore W580057906C121332964 @default.
- W580057906 hasConceptScore W580057906C126838900 @default.
- W580057906 hasConceptScore W580057906C127413603 @default.
- W580057906 hasConceptScore W580057906C136229726 @default.
- W580057906 hasConceptScore W580057906C143753070 @default.
- W580057906 hasConceptScore W580057906C154945302 @default.
- W580057906 hasConceptScore W580057906C192562407 @default.
- W580057906 hasConceptScore W580057906C205372480 @default.
- W580057906 hasConceptScore W580057906C21822782 @default.
- W580057906 hasConceptScore W580057906C22679943 @default.
- W580057906 hasConceptScore W580057906C24890656 @default.
- W580057906 hasConceptScore W580057906C30403606 @default.
- W580057906 hasConceptScore W580057906C33923547 @default.
- W580057906 hasConceptScore W580057906C41008148 @default.
- W580057906 hasConceptScore W580057906C54170458 @default.
- W580057906 hasConceptScore W580057906C55494473 @default.
- W580057906 hasConceptScore W580057906C56318395 @default.
- W580057906 hasConceptScore W580057906C71924100 @default.
- W580057906 hasConceptScore W580057906C76155785 @default.
- W580057906 hasLocation W5800579061 @default.
- W580057906 hasOpenAccess W580057906 @default.
- W580057906 hasPrimaryLocation W5800579061 @default.
- W580057906 hasRelatedWork W1500740629 @default.
- W580057906 hasRelatedWork W1981015739 @default.
- W580057906 hasRelatedWork W2019508516 @default.
- W580057906 hasRelatedWork W2041159042 @default.
- W580057906 hasRelatedWork W2046770652 @default.
- W580057906 hasRelatedWork W2059581342 @default.
- W580057906 hasRelatedWork W2094580982 @default.
- W580057906 hasRelatedWork W2107712308 @default.
- W580057906 hasRelatedWork W2114461326 @default.
- W580057906 hasRelatedWork W2121482153 @default.
- W580057906 hasRelatedWork W2124556189 @default.
- W580057906 hasRelatedWork W2137419464 @default.
- W580057906 hasRelatedWork W2141290427 @default.
- W580057906 hasRelatedWork W2159392041 @default.
- W580057906 hasRelatedWork W2161247435 @default.
- W580057906 hasRelatedWork W2172275910 @default.
- W580057906 hasRelatedWork W2327507375 @default.
- W580057906 hasRelatedWork W2549873385 @default.
- W580057906 hasRelatedWork W1970305496 @default.
- W580057906 hasRelatedWork W2147310094 @default.
- W580057906 isParatext "false" @default.
- W580057906 isRetracted "false" @default.
- W580057906 magId "580057906" @default.
- W580057906 workType "dissertation" @default.