UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

More information is available at Theses and Dissertations at University of Maryland Libraries.

Browse

Filters

20121

Settings

Author: search.filters.author.Echeverria, EstebanSubject: search.filters.subject.Medical imaging and radiology

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Estimation of Ultrasound Induced Heat Generationfor Therapeutic Applications
    (2012) Echeverria, Esteban; Thamire, Chandrasekhar; Mechanical Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    The use of ultrasound for therapeutic applications has been increasingly examined mostly because of its noninvasive nature. Though many experimental studies have been conducted to verify the feasibility of the method, no correlations predicting the ultrasonic parameters required to generate prescribed volumetric heat generation rates. In this study, heat generated due to propagation of ultrasound, in soft tissue mimicking material, is examined. Using numerical methods, pressure fields are first computed for different source geometries, signal frequencies, and signal waveforms. Volumetric heat generation rates are then calculated from the computed pressures. The Klinger and Pennes bioheat transfer models are used to compute the temperature distributions. Results from this study will be useful in estimating the volumetric heat generation fields from prescribed ultrasound parameters, which in turn can be used to design ultrasound devices as well as treatment protocols for a variety of therapeutic applications.