I have always been fascinated by Lego. There is something soothing about raking the pile with your hands, trying to find the perfect piece to complete your next build. It was with this mindset that I was helping my son, Yoni, build one of his projects -- clearly there is no pleasure in this for me!
As we were working with the Lego pieces, I came across a curved, semicircular piece and realized that it reminded me of the bore opening of an MRI. With that thought in my head, my son and I began to build our initial Lego MRI model.
After building it, I realized that this might actually be useful for our child life division at the Children's Hospital at Montefiore in the Bronx, New York, spearheaded by Susan Frank and Meghan Kelly, to use when prepping patients for MRI. While many simulators exist on the market, some large and some small, none are built with the basic blocks of childhood. Additionally, its small size and portability allows it to be carried around the hospital in a regular work bag.
After hearing positive comments from our child life department and realizing this may be useful on a national or even international scale, we decided to try to gain support on the Lego ideas website. Our original model was well received, but after reading some posts on Lego ideas from supporters, my son and I built a more detailed model (see below).
Although the idea was well received, the numbers of supporters needed at this site seemed out of reach. We then reached out to fellow radiologists in an attempt to harness the power of social media. Fortunately, Dr. Geraldine McGinty, chair of the American College of Radiology Commission on Economics, agreed to post it on her Twitter feed. There it was noticed by Dr. Erik Ranschaert, a radiologist in the Netherlands, who was similarly taken with the idea. Using fierce determination, Erik was able to communicate with certified Lego professional, Dirk Denoyelle. Erik and Dirk refined the concept using their wits and experience to develop the new improved version below.
Erik has also succeeded in engaging play therapists and pediatricians at his hospital, Jeroen Bosch Hospital in Den Bosch, who are excited to realize this project's potential. The hospital management has "put its money where its mouth is" and provided startup funds for our initial product run.
In a nice example of "many hands make light work," the combined efforts of Erik, Geraldine, Dirk, my son Yoni, and myself, we are now moving forward with the project on two different levels.
We hope to distribute full-size MRI simulation sets to children's hospitals across the world. Eventually, we hope this kit, along with other elements, will be made available by children's hospitals everywhere. Additionally, we will make available small MRI units consisting of just the magnet itself (see below) for those interested in a less expensive alternative.
Some centers may even consider obtaining this smaller kit as a previsit gift for children preparing for their first MRI. Additionally, with time this can be complemented by other facets we hope to create, including a Lego-themed video about undergoing MRI and eventually a smartphone application that will allow patients to download and listen to audio recordings of entire MRI study sequences to help prepare for the loud and unusual noises that often scare children.
Dr. Benjamin H. Taragin.We hope to partner with other sites internationally to provide data on the efficacy of the Lego MRI. Fortuitously, this year the International Day of Radiology, which took place on 8 November, centered on pediatric radiology, and provided a great opportunity for us to publicize this project and invite others to join us. We are delighted to be a part of the effort to publicize the value of radiology and creative approaches to optimizing children's experience in radiology.
It is our hope that this portable stimulator and our additive programs will enable younger children to feel less anxious about the prospect of having an MRI, as well as allow them to complete the study without the need for anesthesia.
Talk about a block party!
Dr. Benjamin H. Taragin is director of pediatric radiology at Children's Hospital at Montefiore, and a board member of the Society for Pediatric Radiology.
Editor's note: This article originally appeared as a guest blog on the European Society of Radiology's website. Click here for the original version. This is not an official Lego product. The Lego Group does not endorse this product in any way, shape, or form and does not accept any responsibility for any unforeseen or adverse consequences following from this product. Lego, the Lego logo/the Minifigure/Mindstorms/Legoland are trademarks of the Lego Group. ©2015 The Lego Group.
![Examples of ultrasound findings and techniques. (A) Images in a 39-year-old male patient with a mass in the left thigh. The mass is heterogeneous on the B-mode US image (compared with the patient in D) and showed increased microvascularity (superb microvascular imaging [SMI]) and shear-wave elastography (SWE) values. Undifferentiated pleomorphic sarcoma was diagnosed at biopsy (with pleomorphic rhabdomyosarcoma in surgical specimen). (B) Images in an 18-year-old male patient with a mass in the left leg. The mass is hypoechoic on the B-mode image, with no other findings suggestive of malignancy. The lesion is in contact with the cortex of the tibia, which is slightly irregular. CT revealed a doubtful anteromedial tibial erosion. The microvascular study demonstrated high vascularization, suggestive of malignancy. Periosteal Ewing sarcoma was diagnosed with both histologic and immunohistochemical confirmation. (C) Images in a 69-year-old female patient with a lump growing on the outside of the left leg. Multiple SWE examinations were performed (please note the high values obtained in the measurements, whereas the color map highlights the stiffness relative to adjacent tissues). SMI showed areas of increased vascularization to target for sampling. Undifferentiated spindle cell sarcoma was diagnosed at biopsy, with residual leiomyosarcoma in the surgical specimen after neoadjuvant therapy. (D) Images in a 56-year-old female patient with a mass in the right thigh. The mass is heterogeneous at both B-mode ultrasound (similar to patient A) and MRI (coronal T2-weighted spectral attenuated inversion recovery [SPAIR]; T1-weighted pre-contrast and postcontrast imaging), which even shows uptake after the administration of paramagnetic contrast material, which is traditionally suggestive of malignancy. Low values at SMI and elastography are suggestive of benignity. Spindle cell lipoma was diagnosed at biopsy, with atypical spindle cell lipomatous tumor in the surgical specimen.](https://img.auntminnieeurope.com/mindful/smg/workspaces/default/uploads/2026/08/images-radiol250278fig2.APCFLSvX6p.jpg?auto=format%2Ccompress&fit=crop&h=100&q=70&w=100)
![Examples of ultrasound findings and techniques. (A) Images in a 39-year-old male patient with a mass in the left thigh. The mass is heterogeneous on the B-mode US image (compared with the patient in D) and showed increased microvascularity (superb microvascular imaging [SMI]) and shear-wave elastography (SWE) values. Undifferentiated pleomorphic sarcoma was diagnosed at biopsy (with pleomorphic rhabdomyosarcoma in surgical specimen). (B) Images in an 18-year-old male patient with a mass in the left leg. The mass is hypoechoic on the B-mode image, with no other findings suggestive of malignancy. The lesion is in contact with the cortex of the tibia, which is slightly irregular. CT revealed a doubtful anteromedial tibial erosion. The microvascular study demonstrated high vascularization, suggestive of malignancy. Periosteal Ewing sarcoma was diagnosed with both histologic and immunohistochemical confirmation. (C) Images in a 69-year-old female patient with a lump growing on the outside of the left leg. Multiple SWE examinations were performed (please note the high values obtained in the measurements, whereas the color map highlights the stiffness relative to adjacent tissues). SMI showed areas of increased vascularization to target for sampling. Undifferentiated spindle cell sarcoma was diagnosed at biopsy, with residual leiomyosarcoma in the surgical specimen after neoadjuvant therapy. (D) Images in a 56-year-old female patient with a mass in the right thigh. The mass is heterogeneous at both B-mode ultrasound (similar to patient A) and MRI (coronal T2-weighted spectral attenuated inversion recovery [SPAIR]; T1-weighted pre-contrast and postcontrast imaging), which even shows uptake after the administration of paramagnetic contrast material, which is traditionally suggestive of malignancy. Low values at SMI and elastography are suggestive of benignity. Spindle cell lipoma was diagnosed at biopsy, with atypical spindle cell lipomatous tumor in the surgical specimen.](https://img.auntminnieeurope.com/mindful/smg/workspaces/default/uploads/2026/08/images-radiol250278fig2.APCFLSvX6p.jpg?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
