Ultrasonography-based motion tracking for MRgFUS
| Autor: | Cristina Sarti, Holger Hewener, Andre Bongers, Julia Schwaab, Matthias Günther, Tobias Barthscherer, Daniel Speicher, Jürgen Jenne, Steffen Tretbar |
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| Rok vydání: | 2017 |
| Předmět: |
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Engineering medicine.diagnostic_test business.industry Phased array medicine.medical_treatment Ultrasound Magnetic resonance imaging 02 engineering and technology Tracking (particle physics) High-intensity focused ultrasound 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Software Match moving 0202 electrical engineering electronic engineering information engineering medicine 020201 artificial intelligence & image processing Computer vision Artificial intelligence business Biomedical engineering |
| Zdroj: | AIP Conference Proceedings. |
| ISSN: | 0094-243X |
| Popis: | Non-invasive treatment of moving organs like liver and kidney with high intensity focused ultrasound (HIFU/FUS) is challenging. The highly precise HIFU ablation requires real-time knowledge of tumor position with mm precision. The aim of this work was to build up a magnetic resonance imaging compatible tracking device using diagnostic ultrasound imaging for MR guided FUS (MRgFUS).The hardware of the developed US-tracking system comprises the ultrasound beam former with a screen directly placed in front of the MR-magnet, a linear and a special ultrasound tracking probe. The tracking probe (2x64 element phased array) can acquire two perpendicularly oriented US-image planes for quasi 3D tracking. The US-data are sent to a workstation in the console room of the MRI scanner which controls the whole tracking device. The tracking software (Sonoplan II) analyzes the ultrasound image stream and calculates the actual position of pre-defined contours. Beside the 2D-translation, the tracking algorithm analyzes the ro... |
| Databáze: | OpenAIRE |
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