GIANT RESPONSE OF MICROBUBBLE CONTRAST AGENTS OSCILLATION IN A HIGH-INTENSITY FOCUSED ULTRASOUND FIELD
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2013, Vol 58, Issue 3
Abstract
The interaction of microbubble contrast agents (BR14) with high-intensity focused ultrasound is investigated by high-speed photography. The experiments were conducted at an ultrasound frequency of 1.08 MHz with a peak negative pressure of 1.8 MPa. The microbubble oscillations run on a giant response with a long expansion phase followed by a violent collapse. The implications in high-intensity focused ultrasound surgery are also discussed.
Authors and Affiliations
EMIL-ALEXANDRU BRUJAN, YOICHIRO MATSUMOTO
Keywords
Related Articles
- EP ID EP179172
- DOI -
- Views 71
- Downloads 0
RISK ASSESSMENT OF SYSTEMS DURING DEVELOPMENT PHASE: AN APPROACH BASED ON LIFETIME FUNCTIONS
Quantifying the time-dependent risk associated with complex engineering projects is an essential task to ensure the success of these projects. Low technology readiness and maturity levels and uncertainties associated wit...
HELICAL SPRING WITH VARIABLE WIRE DIAMETER
The geometrical and functional particularities of helical springs with variable wire diameter are studied in this paper. The spring’s characteristic is determined by two factors. On one hand, by the minimum distance betw...
THE INFLUENCE OF THE WHEEL CONICITY ON THE HUNTING MOTION CRITICAL SPEED OF THE HIGH SPEED RAILWAY WHEELSET WITH ELASTIC JOINTS
The axle hunting is a coupled lateral and yaw self oscillatory motion which is largely determined by wheel–rail contact geometry. The stability of this motion is an important dynamic problem that determines the maximum o...
INFLUENCE OF BOUNDARY CONDITION ON CHANNEL SECTION COLUMN BEHAVIOUR
The FEM-based, numerical study of the influence of the boundary conditions on distorsional lateral buckling phenomena during bending of cold formed steel bars with different channel sections have been performed. Beams wi...
EVOLUTION OF EUROCODE 3 – AMENDMENTS TO EN 1993-1-5 FOR PLATE BUCKLING
Starting in 2010 the European Commission initiated the process of evolution of the first generation of Eurocodes. Based on Mandates M/466 EN and M/515 EN, CEN/TC250 created several expert groups which deal with this evol...