Submitted to the Medical Physics Journal as a TECHNIQUE NOTE Differences in the lesion formation process between focused ultrasound and microwave ablations
Journal
Medical Physics
Journal Volume
33
Journal Issue
5
Pages
1346-1351
Date Issued
2006
Author(s)
Abstract
The objective is to understand the differences in the lesion formation processes between microwave and high-intensity focused ultrasound (HIFU) ablation. The lesions formed by microwaves and HIFU were real-time monitored and compared using transparent tissue-mimicking phantoms at 60 and 70 W of driving electrical power. Microwaves and HIFU produced lesions different in shape, size, and developing processes. For HIFU ablations, the hyperechoic region appeared bigger in ultrasonic images, as compared with the protein denatured region observed optically at the end of 100 s ablations. On the contrary, the hyperechoic signal was only limited to a small region along the antenna of a microwave ablator. Careful monitoring and controlling the lesion formation process is essential for successful microwaves and HIFU thermal ablations. ? 2006 American Association of Physicists in Medicine.
SDGs
Other Subjects
Ablation; Antennas; Cavitation; Ultrasonic imaging; Ultrasonics; Cancer; Developing process; High intensity focused ultrasound; Hyperechoic regions; Lesion; Microwave ablation; Monitoring and controlling; Thermal therapies; Microwaves; antenna; article; cancer; controlled study; high intensity focused ultrasound; hyperthermic therapy; microwave radiation; phantom; priority journal; protein denaturation; ultrasound therapy; animal; comparative study; connective tissue; human; methodology; microwave radiation; pathology; pathophysiology; radiation dose; radiation response; ultrasound therapy; Animals; Connective Tissue; Dose-Response Relationship, Radiation; Humans; Microwaves; Radiation Dosage; Ultrasonic Therapy
Publisher
John Wiley and Sons Ltd
Type
journal article