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A time domain method to monitor temperature in microwave hyperthermia using ultrasound attenuation
Published in IEEE Computer Society
2018
Volume: 2018-April
   
Pages: 1496 - 1499
Abstract
Microwave heating is a well-known technique for delivering hyperthermia treatment to biological tissues. Temperature elevation during microwave tissue heating and feedback for real-time power control is commonly done using a limited number of invasive thermometry probes. Although ultrasound-based monitoring in real-time has been investigated for use with different ablation modalities, like radio frequency (RF) electrode, High Intensity Focused Ultrasound, its use in microwave hyperthermia is little reported. In this simulation study, we focused on estimating the spatio-temporal distribution of temperature from the estimates of attenuation of pulse-echo ultrasound RF data. The ultrasound simulation was performed using the convolution model. The temperature maps estimated using an algorithm based on tracking the changes in ultrasound attenuation is able to detect the spatial location of the hotspot with considerable precision. However, the current algorithm underestimates the isothermal regions and suffers from temperature dependent errors. © 2018 IEEE.
About the journal
JournalData powered by TypesetProceedings - International Symposium on Biomedical Imaging
PublisherData powered by TypesetIEEE Computer Society
ISSN19457928
Open AccessNo
Concepts (17)
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    Ablation
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    Convolution
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    Hyperthermia therapy
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    Medical imaging
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    Microwave heating
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    MICROWAVES
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    Power control
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    Tissue
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    Ultrasonic applications
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    ULTRASONIC EFFECTS
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    Ultrasonic waves
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    Convolution model
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    MICROWAVE HYPERTHERMIA
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    Thermal ablation
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    Ultrasound attenuation
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    ULTRASOUND SIMULATION
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    Time domain analysis