1. An anthropomorphic pelvis phantom for MR-guided prostate interventions.
- Author
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Bauer DF, Adlung A, Brumer I, Golla AK, Russ T, Oelschlegel E, Tollens F, Clausen S, Aumüller P, Schad LR, Nörenberg D, and Zöllner FG
- Subjects
- Humans, Magnetic Resonance Imaging, Magnetic Resonance Spectroscopy, Male, Pelvis diagnostic imaging, Phantoms, Imaging, Prostate diagnostic imaging, Prostatic Neoplasms diagnostic imaging
- Abstract
Purpose: To design and manufacture a pelvis phantom for magnetic resonance (MR)-guided prostate interventions, such as MRGB (MR-guided biopsy) or brachytherapy seed placement., Methods: The phantom was designed to mimic the human pelvis incorporating bones, bladder, prostate with four lesions, urethra, arteries, veins, and six lymph nodes embedded in ballistic gelatin. A hollow rectum enables transrectal access to the prostate. To demonstrate the feasibility of the phantom for minimal invasive MRI-guided interventions, a targeted inbore MRGB was performed. The needle probe was rectally inserted and guided using an MRI-compatible remote controlled manipulator (RCM)., Results: The presented pelvis phantom has realistic imaging properties for MR imaging (MRI), computed tomography (CT) and ultrasound (US). In the targeted inbore MRGB, a prostate lesion was successfully hit with an accuracy of 3.5 mm. The experiment demonstrates that the limited size of the rectum represents a realistic impairment for needle placements., Conclusion: The phantom provides a valuable platform for evaluating the performance of MRGB systems. Interventionalists can use the phantom to learn how to deal with challenging situations, without risking harm to patients., (© 2021 The Authors. Magnetic Resonance in Medicine published by Wiley Periodicals LLC on behalf of International Society for Magnetic Resonance in Medicine.)
- Published
- 2022
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