Time reversal of ultrasonic fields. I. Basic principles

1992 ◽  
Vol 39 (5) ◽  
pp. 555-566 ◽  
Author(s):  
M. Fink
Keyword(s):  
Time Reversal ◽  
Basic Principles ◽  
Ultrasonic Fields

Ultrasonic time reversal, basic principles

2001 ◽  
Vol 110 (5) ◽  
pp. 2615-2616
Author(s):  
Didier Cassereau ◽  
Mathias Fink
Keyword(s):  
Time Reversal ◽  
Basic Principles ◽  
Ultrasonic Time

Current Issues: Evidence-Based Practice for the Real World: Thoughts on Clinical Education in Communication Disorders

2010 ◽  
Vol 20 (3) ◽  
pp. 100-105 ◽  
Author(s):  
Anne K. Bothe
Keyword(s):  
Clinical Education ◽  
Real World ◽  
Evidence Based Practice ◽  
Communication Disorders ◽  
University Faculty ◽  
Evidence Based ◽  
Speech Language Pathology ◽  
Basic Principles ◽  
The Real ◽  
Language Pathology

This article presents some streamlined and intentionally oversimplified ideas about educating future communication disorders professionals to use some of the most basic principles of evidence-based practice. Working from a popular five-step approach, modifications are suggested that may make the ideas more accessible, and therefore more useful, for university faculty, other supervisors, and future professionals in speech-language pathology, audiology, and related fields.

MEASURE AND VIZUALIZATION IN THE NEAR ZONES OF TRANSIENT ULTRASONIC FIELDS GENERATED BY BROADBAND TRANSDUCERS IN LIQUID MEDIA

1990 ◽  
Vol 51 (C2) ◽  
pp. C2-603-C2-606 ◽  
Author(s):  
E. RIERA-FRANCO DE SARABIA ◽  
A. RAMOS-FERNANDEZ ◽  
L . GOMEZ-ULLATE
Keyword(s):  
Liquid Media ◽  
Ultrasonic Fields

Basic Ideas and Principles for Quantifying Regional Blood Flow with Nuclear Medical Techniques

1996 ◽  
Vol 35 (05) ◽  
pp. 181-185 ◽  
Author(s):  
H. Herzog
Keyword(s):  
Blood Flow ◽  
Nuclear Medicine ◽  
Regional Blood Flow ◽  
Visual Presentation ◽  
Regional Cerebral Blood ◽  
Basic Principles ◽  
Parametric Images ◽  
Major Application ◽  
Basic Ideas ◽  
The Brain

SummaryThe measurement of blood flow in various organs and its visual presentation in parametric images is a major application in nuclear medicine. The purpose of this paper is to summarize the most important nuclear medicine procedures used to quantify regional blood flow. Starting with the first concepts introduced by Fick and later by Kety-Schmidt the basic principles of measuring global and regional cerebral blood are discussed and their relationships are explained. Different applications and modifications realized first in PET- and later in SPECT-studies of the brain and other organs are described. The permeability and the extraction of the different radiopharmaceuticals are considered. Finally some important instrumental implications are compared.

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