Document Detail


Pressures in a simulated breast subjected to compression forces comparable to those of mammography. Work in Progress.
MedLine Citation:
PMID:  7824714     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To determine the magnitude and distribution of pressures in breast models subjected to mammographic compression forces. MATERIALS AND METHODS: A vinyl-wrapped, unleavened-bread-dough breast model was compressed. Pressures in the dough models were measured with a strain gauge connected to a water-filled sensor. RESULTS: Under broad compression, pressures were uniform (range, 2.76-22.06 kPa [0.4-3.2 psi]). Spot compression increased pressures by as much as 60%. Pressures dropped sharply outside of paddle margins. No pressure differentials were found near small, deep simulated masses. The pressure of large masses increased by 50% when subjected to full compression force. Vigorous digital palpation resulted in a pressure of more than 41.40 kPa (6 psi). CONCLUSION: General pressures were mild and uniform. Internal pressures varied inversely with the area to which force was applied. Pressure dissemination was restricted by the cohesive binder and allowed zones of greater pressure to form directly under the applied force. The surrounding matrix disseminated pressure and protected small masses; large masses, bearing the force of the paddle, were exposed to greater pressure. Digital palpation administered high pressures.
Authors:
D G Russell; J T Ziewacz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Radiology     Volume:  194     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1995 Feb 
Date Detail:
Created Date:  1995-02-14     Completed Date:  1995-02-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  383-7     Citation Subset:  AIM; IM    
Affiliation:
Department of Radiology, University of Connecticut School of Medicine, John Dempsey Hospital, Farmington 06032.
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MeSH Terms
Descriptor/Qualifier:
Biomechanics
Breast / physiology*
Female
Humans
Mammography*
Models, Structural*
Palpation
Pressure*
Comments/Corrections
Erratum In:
Radiology 1995 Jun;195(3):877

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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