Large scale phased array and system for treatment of deep seated tissue

Large scale phased array and system for treatment of deep seated tissue

A custom built 512 channel system was designed to drive therapeutic ultrasound phased arrays. The system was used to drive a newly constructed 256 element phased array in a series of MR guided in vivo porcine experiments to coagulate deep seated tissue in the thigh, kidney, and liver. Thermal coagul...

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Bibliographische Detailangaben
Hauptverfasser: Daum, D.R., Hynynen, K.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Animals
Coagulation
In vivo
Large-scale systems
Lesions
Liver
Phased arrays
Surgery
Thigh
Ultrasonic imaging
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Beschreibung
Zusammenfassung:A custom built 512 channel system was designed to drive therapeutic ultrasound phased arrays. The system was used to drive a newly constructed 256 element phased array in a series of MR guided in vivo porcine experiments to coagulate deep seated tissue in the thigh, kidney, and liver. Thermal coagulation lesions greater than 5 cm/sup 3/ in thigh and greater than 2 cm/sup 3/ in the liver were generated using a single 20 second sonication. The feasibility of MR guided phased array ultrasound surgery to coagulate in vivo liver tissue in a large animal model has been shown.
ISSN:1051-0117
DOI:10.1109/ULTSYM.1998.765241