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Eur Radiol. 2018 Nov;28(11):4824-4831. doi: 10.1007/s00330-018-5497-9. Epub 2018 May 22.

Fast 3-T MR-guided transrectal prostate biopsy using an in-room tablet device for needle guide alignment: a feasibility study.

Author information

1
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, P.O. Box 9101 (767), 6500 HB, Nijmegen, The Netherlands. kristian.overduin@radboudumc.nl.
2
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, P.O. Box 9101 (767), 6500 HB, Nijmegen, The Netherlands.
3
Siemens Healthcare GmbH, Erlangen, Germany.
4
MIRA Institute for Biomedical Engineering and Technical Medicine, University of Twente, Enschede, The Netherlands.

Abstract

OBJECTIVES:

To assess the feasibility of adding a tablet device inside the scanner room to assist needle-guide alignment during magnetic resonance (MR)-guided transrectal prostate biopsy.

METHODS:

Twenty patients with one cancer-suspicious region (CSR) with PI-RADS score ≥ 4 on diagnostic multiparametric MRI were prospectively enrolled. Two orthogonal scan planes of an MR fluoroscopy sequence (~3 images/s) were aligned to the CSR and needle-guide pivoting point. Targeting was achieved by manipulating the needle-guide under MR fluoroscopy feedback on the in-room tablet device. Technical feasibility and targeting success were assessed. Complications and biopsy procedure times were also recorded.

RESULTS:

Needle-guide alignment with the in-room tablet device was technically successful in all patients and allowed sampling after a single alignment step in 19/20 (95%) CSRs (median size 14 mm, range: 4-45). Biopsy cores contained cancer in 18/20 patients. There were no per-procedural or post-biopsy complications. Using the tablet device, the mean time to first biopsy was 5.8 ± 1.0 min and the mean total procedure time was 23.7 ± 4.1 min.

CONCLUSIONS:

Use of an in-room tablet device to assist needle-guide alignment was feasible and safe during MR-guided transrectal prostate biopsy. Initial experience indicates potential for procedure time reduction.

KEY POINTS:

• Performing MR-guided prostate biopsy using an in-room tablet device is feasible. • CSRs could be sampled after a single alignment step in 19/20 patients. • The mean procedure time for biopsy with the tablet device was 23.7 min.

KEYWORDS:

Image-guided biopsy; Magnetic resonance imaging; Operative time; Prostate cancer; Tablet computers

PMID:
29789909
PMCID:
PMC6182740
DOI:
10.1007/s00330-018-5497-9
[Indexed for MEDLINE]
Free PMC Article

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