Document Detail

Contemporary technique of intraoperative 3-dimensional ultrasonography-guided transperineal prostate cryotherapy.
MedLine Citation:
PMID:  19424468     Owner:  NLM     Status:  In-Data-Review    
Successful cryotherapy of the prostate for neoplasms relies on imaging to achieve good oncological outcomes with minimal complications. Traditional prostatic cryotherapy relies on 2-dimensional ultrasonography (2DUS) guidance, which often makes it difficult to track the passage of needles in an oblique plane. We describe our initial 3-dimensional ultrasonography (3DUS) system, and the subsequent improvements that have been made during the last 10 years. Our imaging system uses a Philips HDI 5000 ultrasonography unit, a standard PC, a Matrox Meteor II video frame grabber and 3DUS developed at Robarts Research Institute. For the cryotherapy we use ultrathin (17-gauge) IceRod needles. After image acquisition, preplanning is performed using the 3-dimensional (3D) software, and then the IceRod needles are inserted into the prostate. As the freezing process commences, continuous 3DUS images are taken and analyzed during the double freeze-thaw cycles to monitor the progress of the ice ball formation. Real-time intraoperative 3D imaging of the prostate during cryotherapy has allowed us to accurately preplan and then monitor the progression of ice ball formation, which represents a significant advantage over conventional 2DUS.
Venu Chalasani; Lori Gardi; Carlos H Martinez; Donal B Downey; Aaron Fenster; Joseph L Chin
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Canadian Urological Association journal = Journal de l'Association des urologues du Canada     Volume:  3     ISSN:  1911-6470     ISO Abbreviation:  Can Urol Assoc J     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-05-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101312644     Medline TA:  Can Urol Assoc J     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  136-41     Citation Subset:  -    
Division of Urology, University of Western Ontario, London, Ont.
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