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Tytuł:
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In-bore biopsies of the prostate assisted by a remote-controlled manipulator at 1.5 T.
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Autorzy:
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Linder N; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany. .
Schaudinn A; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
Petersen TO; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
Bailis N; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
Stumpp P; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
Horn LC; Institute of Pathology, University of Leipzig, Leipzig, Germany.
Stolzenburg JU; Department of Urology, Leipzig University Hospital, Leipzig, Germany.
Kahn T; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
Moche M; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
Busse H; Department of Diagnostic and Interventional Radiology, Leipzig University Hospital, Liebigstrasse 20, Haus 4, 04103, Leipzig, Germany.
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Źródło:
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Magma (New York, N.Y.) [MAGMA] 2019 Oct; Vol. 32 (5), pp. 599-605. Date of Electronic Publication: 2019 May 09.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: 2003- : Heidelberg : Springer
Original Publication: New York, NY : Chapman & Hall, c1993-
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MeSH Terms:
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Magnetic Resonance Imaging, Interventional*
Biopsy/*methods
Prostate/*diagnostic imaging
Prostatic Neoplasms/*diagnostic imaging
Robotic Surgical Procedures/*methods
Aged ; Diffusion Magnetic Resonance Imaging ; Humans ; Image Processing, Computer-Assisted/methods ; Male ; Middle Aged ; Motion ; Pattern Recognition, Automated ; Prostate/pathology ; Prostatic Neoplasms/pathology ; Retrospective Studies ; Robotics
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References:
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Contributed Indexing:
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Keywords: Biopsy; Magnetic resonance imaging; Needle; Prostatic neoplasms; Robotics
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Entry Date(s):
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Date Created: 20190511 Date Completed: 20200317 Latest Revision: 20200317
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Update Code:
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20240105
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DOI:
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10.1007/s10334-019-00751-5
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PMID:
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31073867
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Purpose: To evaluate the technical and clinical utility of a fully MRI-compatible, pneumatically driven remote-controlled manipulator (RCM) for targeted biopsies of the prostate at 1.5 T.
Materials and Methods: The data of the first 22 patients that were biopsied under robotic assistance were analyzed. Interventional planning relied on T2-weighted (T2w) turbo spin-echo (TSE) images (axial and sagittal) with a high-b-value diffusion-weighted acquisition added in selected cases. Alignment of the needle guide was controlled with a short balanced SSFP sequence in two oblique planes along the MR-visible sheath. Signals were acquired with a combination of elements from a 30-channel body and a 32-channel spine coil. Biopsy samples were taken with a fully automatic 18-G biopsy gun with a length of 150 or 175 mm.
Results: Mean age was 66.6 years and average PSA level was 11.5 ng/ml. Fourteen out of 22 patients (63%) had received prior biopsies under transrectal ultrasound guidance. Diagnostic MRI reports (before biopsy) involved 17 cases with a single suspicious finding (four PI-RADS 3, one PI-RADS 3-4, eight PI-RADS 4 and nine PI-RADS 5 cases). The median effective procedure time was 33.9 (range 25.0-55.9) min for 16 cases with one CSR and 63.4 (52.7-81.8) min for 5 cases with two CSRs. The biopsy with three CSRs took 74.0 min. Histopathologic examination revealed prostate cancer in 14 of 22 cases.
Conclusion: MR-targeted, transrectal biopsy of the prostate could be reliably performed with a robotic manipulator at a field strength of 1.5 T. Balanced SSFP imaging is considered a viable option for fast procedural control. Follow-up work needs to evaluate to what extent in-bore adjustments and workflow enhancements will contribute to shorter procedure times or higher patient comfort.
