Evaluation of a robotic technique for transrectal MRI-guided prostate biopsies
Open Access
- 29 September 2011
- journal article
- urogenital
- Published by Springer Science and Business Media LLC in European Radiology
- Vol. 22 (2), 476-483
- https://doi.org/10.1007/s00330-011-2259-3
Abstract
To evaluate the accuracy and speed of a novel robotic technique as an aid to perform magnetic resonance image (MRI)-guided prostate biopsies on patients with cancer suspicious regions. A pneumatic controlled MR-compatible manipulator with 5 degrees of freedom was developed in-house to guide biopsies under real-time imaging. From 13 consecutive biopsy procedures, the targeting error, biopsy error and target displacement were calculated to evaluate the accuracy. The time was recorded to evaluate manipulation and procedure time. The robotic and manual techniques demonstrated comparable results regarding mean targeting error (5.7 vs 5.8 mm, respectively) and mean target displacement (6.6 vs 6.0 mm, respectively). The mean biopsy error was larger (6.5 vs 4.4 mm) when using the robotic technique, although not significant. Mean procedure and manipulation time were 76 min and 6 min, respectively using the robotic technique and 61 and 8 min with the manual technique. Although comparable results regarding accuracy and speed were found, the extended technical effort of the robotic technique make the manual technique – currently – more suitable to perform MRI-guided biopsies. Furthermore, this study provided a better insight in displacement of the target during in vivo biopsy procedures.This publication has 38 references indexed in Scilit:
- Wrist Drop: An Atypical Presentation of Renal Cell CarcinomaThe American Journal of the Medical Sciences, 2011
- MRI-guided robotic system for transperineal prostate interventions: proof of principlePhysics in Medicine & Biology, 2010
- Integrated navigation and control software system for MRI-guided robotic prostate interventionsComputerized Medical Imaging and Graphics, 2010
- The importance of organ geometry and boundary constraints for planning of medical interventionsMedical Engineering & Physics, 2009
- Thirty-Two-Channel Coil 3T Magnetic Resonance-Guided Biopsies of Prostate Tumor Suspicious Regions Identified on Multimodality 3T Magnetic Resonance Imaging: Technique and FeasibilityInvestigative Radiology, 2008
- Transperineal Prostate Intervention: Robot for Fully Automated MR Imaging—System Description and Proof of Principle in a Canine ModelRadiology, 2008
- Initial clinical experience with real‐time transrectal ultrasonography‐magnetic resonance imaging fusion‐guided prostate biopsyBJU International, 2008
- Observations on rotating needle insertions using a brachytherapy robotPhysics in Medicine & Biology, 2007
- Control of soft tissue deformation during robotic needle insertionMinimally Invasive Therapy & Allied Technologies, 2006
- Solitary psoas muscle metastasis after radical nephrectomy for renal cell carcinomaInternational Journal of Urology, 2005