AJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Phal, P. M.
Right arrow Articles by Wolfe, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Phal, P. M.
Right arrow Articles by Wolfe, R.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

Sonographically Guided Biopsy of Focal Lesions: A Comparison of Freehand and Probe-Guided Techniques Using a Phantom

Pramit M. Phal1, Duncan M. Brooks1 and Rory Wolfe2

1 Department of Radiology, Austin Health, The University of Melbourne, Studley Rd., Heidelberg, Melbourne, Victoria 3084, Australia.
2 Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.



View larger version (64K):

[in a new window]
  		Fig. 1. —Sonogram of phantom shows stuffed olive appearing as target lesion with hypoechoic center (arrows). Coffee stirrers ("ribs," arrow) are echogenic with posterior shadowing.

 


View larger version (28K):

[in a new window]
  		Fig. 2. —Sagittal CT scan of phantom shows olive deep in relation to layer with ribs. Olives were at a mean depth of 38 mm below surface. Depth of phantom is 80 mm.

 


View larger version (123K):

[in a new window]
  		Fig. 3. —Photograph shows needle and probe are aligned manually for freehand method of biopsy.

 


View larger version (84K):

[in a new window]
  		Fig. 4. —Sonogram of phantom shows echogenic needle (top arrow) approaching target (bottom arrow).

 


View larger version (119K):

[in a new window]
  		Fig. 5. —Photograph shows operator using probe-guided method. Needle guide is fixed to ultrasound probe and keeps the needle within plane of sonographic image as it is advanced toward biopsy target.

 


View larger version (94K):

[in a new window]
  		Fig. 6. —Sonogram of phantom shows guide lines (arrows) that are displayed on sonography screen to show the path of the needle. Echogenic needle tip is in olive.

 


View larger version (9K):

[in a new window]
  		Fig. 7. —Graph shows ratio of probe-guide time to freehand time plotted against time averaged over probe-guided and freehand techniques for all 80 targets. Horizontal line indicates a ratio of 1—that is, equal time for freehand and probe-guided techniques. Points below line are targets for which operator was quicker using probe guide, and points above line are targets for which operator was quicker using freehand method.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2005 by the American Roentgen Ray Society.