Development of a three dimensional printed MRI compatible template for high dose rate prostate brachytherapy implants

Abstract

Introduction The significance of the delineation of prostate gland and its main surrounding organs in contemporary HDR prostate brachytherapy requires the use of highly sophisticated imaging techniques, such as MRI. Therefore, implant related equipment should meet MRI compatibility standards. Purpose This work presents the construction and testing of an inexpensive MR-compatible prostate-template for HDR brachytherapy which took place in Metropolitan hospital, Greece Materials and methods A free CAD designer and a 3D printer system were utilised for template production. The template was tested under clinical conditions, using the imaging, operating and sterilization equipment of our department along with a home-made prostate phantom. Results The template was printed according to the original design and fitted well in the equipment currently in use. MRI field does not interfere with the item, while the needle arrangement is consistent in several depths in the phantom. Among the contemporary commercially available templates for HDR interstitial prostate brachytherapy, the 3D printed template constructed in our clinic offers a reusable, cost-effective solution. Conclusion The functionality of the presented prototype template exploits the possibilities of employing 3D printing technology in clinical practice of brachytherapy which will allow the configuration of patient-specific equipment. Disclosure No conflict of interest, financial or other, exists.