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Adaptive singular value decomposition filtering of high-intensity focused ultrasound interference enables real-time ultrasound-guided therapy
Ultrasonography ; : 343-353, 2023.
Article in English | WPRIM | ID: wpr-969234
ABSTRACT
High-intensity focused ultrasound (HIFU) is an emerging therapeutic tool for the effective thermal ablation of pathological tissue. For accurate localization of the target and safe control of the HIFU dosage, real-time imaging guidance during the HIFU exposure is desired. Ultrasound imaging has the capability to guide clinicians toward a lesion in real time, but is not an ideal option, as HIFU application causes strong interference, thereby substantially distorting the images used for guidance. Thus, this study introduces singular value decomposition–based filtering capable of restoring ultrasound harmonic images from HIFU interference without undesirable spectral distortion. The results were experimentally validated with a custom-made phantom, indicating that this approach effectively eliminates HIFU-induced artifacts, which is essential for real-time monitoring of the therapeutic process.
Full text: Available Index: WPRIM (Western Pacific) Language: English Journal: Ultrasonography Year: 2023 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: English Journal: Ultrasonography Year: 2023 Type: Article