A Magnetic Resonance Compatible E4D Ultrasound Probe for Motion Management of Radiation Therapy
| Autor: | Aqsa Patel, Chan Pong Kwok, Scott Smith, Thomas K. F. Foo, David Shoudy, Timothy Fiorillo, Bryan Bednarz, David M. Mills, James Sabatini, Warren Lee, Heather Chan, Eric Fiveland |
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| Rok vydání: | 2019 |
| Předmět: |
Beamforming
Materials science medicine.diagnostic_test business.industry medicine.medical_treatment Ultrasound Magnetic resonance imaging Article Linear particle accelerator 030218 nuclear medicine & medical imaging law.invention Radiation therapy 03 medical and health sciences 0302 clinical medicine Optics Nuclear magnetic resonance Transducer law 030220 oncology & carcinogenesis Shielded cable medicine Center frequency business |
| Zdroj: | IEEE network. 2017 |
| ISSN: | 0890-8044 |
| Popis: | We developed a magnetic resonance compatible real-time, three-dimensional imaging ultrasound probe for motion management of radiation therapy for liver cancer. The probe contains an 18,000-element, 46.8 mm × 21.5 mm matrix array constructed from three tiled transducer modules with integrated beamforming ASICs. The center frequency and −6 dB fractional bandwidth of the probe was 3.6 MHz and 85 percent respectively. Ferromagnetic materials in the acoustic stack, flex interconnect and electronics boards were greatly minimized for magnetic resonance compatibility. The probe and cable were shielded to minimize the impact of radiofrequency noise on both the ultrasound and magnetic resonance images. The probe’s low-profile, side-viewing design allows it to be strapped to a patient so that images may be acquired hands-free. We present simultaneously acquired ultrasound and 3 Tesla magnetic resonance images with minimal artifacts in both images. |
| Databáze: | OpenAIRE |
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