Document Detail

A 45 to 55 MHz needle-based ultrasound system for invasive imaging.
MedLine Citation:
PMID:  8328115     Owner:  NLM     Status:  MEDLINE    
The design, construction and fabrication of a high frequency needle-based ultrasound imaging system is described. A miniature lead zirconate titanate transducer was mounted opposite a parabolic mirror in a stainless steel needle. By inserting the needle into a tissue, a cross section image of the tissue can be made. Two needle probes were built, a 45 MHz 2.8 mm diameter probe with 125 microns lateral, 55 microns axial resolution and a 55 MHz 1.6 mm diameter probe with 105 microns lateral, 40 microns axial resolution. Preliminary phantom and in vitro tissue images demonstrate the feasibility of high frequency needle-based imaging.
G R Lockwood; L K Ryan; F S Foster
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ultrasonic imaging     Volume:  15     ISSN:  0161-7346     ISO Abbreviation:  Ultrason Imaging     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-08-06     Completed Date:  1993-08-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7909167     Medline TA:  Ultrason Imaging     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1-13     Citation Subset:  IM    
Department of Medical Biophysics, University of Toronto, Ontario, Canada.
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MeSH Terms
Equipment Design
Femoral Artery / ultrasonography
Image Processing, Computer-Assisted / instrumentation*
Models, Anatomic
Ultrasonography / instrumentation*

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