Ultrasound-stimulated acoustic emission in thermal image-guided HIFU therapy: A phantom study
Journal
AIP Conference Proceedings
Journal Volume
829
Pages
142-145
ISBN
073540321X; 9780735403215
Date Issued
2006
Author(s)
Abstract
Magnetic resonance image (MRI) is a promising monitoring tool for non‐invasive real‐time thermal guidance in high intensity focused ultrasound (HIFU) during thermal ablation surgery. However, this approach has two main drawbacks: 1) majority of components need to be redesigned to be MR compatible in order to avoid effecting MR images, and 2) the cost of operating MRI facilities is high. Alternately, ultrasound‐stimulated acoustic emission (USAE) method has been applied for detecting thermal variations in tissues. An optical transparent phantom, made from polyacrylamide, containing thermal sensitive indicator protein (Bovine Serum Albumin), was prepared for observing the HIFU‐induced denaturalization. A thermal‐couple was set up for validation of temperature distribution. Experimental results show that thermal image can be captured clearly under stationary conditions.
Type
conference paper