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Abstract #0550

Fast Real-Time Tracking Using a POCC Algorithm for 3T MR-Guided Transrectal Prostate Biopsy: A Feasibility Study.

MAGNA25Patrik Zamecnik1, Martijn Schouten2, Axel Krafft3, Florian Maier4, Heinz-Peter Schlemmer, Jelle O. Barentsz5, Michael Bock6, Jurgen J. Ftterer5

1Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, Germany; 2Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands; 3Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, United States; 4Department of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany; 5Radiology, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands; 6Medical Physics, Dept. of Radiology, University Hospital Freiburg, Freiburg, Germany

In this feasibility study a safe, easy and precise instrument guidance using the POCC based sequence for automatic needle-guide tracking in transrectal 3 T MR-guided prostate biopsies was demonstrated. The combination of very easy handling, good tumor detection rates comparable with other MR-guided prostate biopsy techniques, use of standard, commercial available devices and short procedure times is very promising and making this approach attractive for clinical routine.

Keywords

able abstract accuracy additional adjustable aligned allowing apical arrow arrows assessing automatic automatically availability available axis balanced beamer biopsies biopsy cancer central clearly clinical combination commercial comparable compatible complications confirm consecutive consisting contained core correlation cross dept desirable detection developed diagnosis diagnostic displayed documented easy enhanced enrolled examination fast feasibility fixing free gland good green guidance guide guided handling holder hospital identified inserted instrument least lesion like located locating longer maier makes manipulation manually marker medical minutes moved movement needed needle negative orientation parallel parametric part passive patient patients phantom physics position positioning positive precise precision previous prior procedure process projected promising prone properties prostate protocol radiological radiology real received recently rectum reduction repeated resolution revealed review room routine safe samples sampling session seven several short slice specimens spotted started steady stopped studies subsequent substantial suspicious system take taken target targeting terms track tracking trajectory transversal tumor ultrasound visible whole yellow