An Assembled Prototype Multimaterial Three-Dimensional–Printed Model of the Neck for Computed Tomography– and Ultrasound-Guided Interventional Procedures

Javan, Ramin; Cho, Alexander L.

doi:10.1097/rct.0000000000000630

Cited by 11 publications

(9 citation statements)

References 29 publications

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“…However, although commercial phantoms often consist of materials with realistic tissue (radio)densities, they commonly have simple, generic forms and sizes that do not closely resemble real patients, making it difficult to extrapolate the performance of an imaging system in phantoms to humans. Affordable 3D printing is increasingly available and offers new opportunities to tailor phantoms for specific clinical and research purposes, including radiotherapy . One important application in radiotherapy is to verify the position of the tumor and normal tissues during treatment delivery.…”

Section: Introductionmentioning

confidence: 99%

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Using 3D printing techniques to create an anthropomorphic thorax phantom for medical imaging purposes

et al. 2017

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Purpose: Imaging phantoms are widely used for testing and optimization of imaging devices without the need to expose humans to irradiation. However, commercially available phantoms are commonly manufactured in simple, generic forms and sizes and therefore do not resemble the clinical situation for many patients. Methods: Using 3D printing techniques, we created a life-size phantom based on a clinical CT scan of the thorax from a patient with lung cancer. It was assembled from bony structures printed in gypsum, lung structures consisting of airways, blood vessels >1 mm, and outer lung surface, three lung tumors printed in nylon, and soft tissues represented by silicone (poured into a 3D-printed mold). Results: Kilovoltage x-ray and CT images of the phantom closely resemble those of the real patient in terms of size, shapes, and structures. Surface comparison using 3D models obtained from the phantom and the 3D models used for printing showed mean differences <1 mm for all structures. Tensile tests of the materials used for the phantom show that the phantom is able to endure radiation doses over 24,000 Gy. Conclusions: It is feasible to create an anthropomorphic thorax phantom using 3D printing and molding techniques. The phantom closely resembles a real patient in terms of spatial accuracy and is currently being used to evaluate x-ray-based imaging quality and positional verification techniques for radiotherapy.

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Section: Introductionmentioning

confidence: 99%

“…Affordable 3D printing is increasingly available and offers new opportunities to tailor phantoms for specific clinical and research purposes, including radiotherapy. [3][4][5][6][7][8] One important application in radiotherapy is to verify the position of the tumor and normal tissues during treatment delivery.…”

Section: Introductionmentioning

confidence: 99%

Using 3D printing techniques to create an anthropomorphic thorax phantom for medical imaging purposes

et al. 2017

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“…2 Number of studies involving critical care within the major utilities of 3DP in critical care of more complex products. This was shown in the use of multiple materials to simulate the different tissue densities common to human structures [16,33,37,38]. Furthermore, specially designed materials can be created for a particular utility.…”

Section: Results Interpretationmentioning

confidence: 99%

“… No Risler Z. et al [ 32 ] Medical Imaging Technical report Made a model of dislocated shoulder in silicon casing and used US to test realism NA NA The model produced realistic images and allows to see the dislocation as well as the needle during simulation of needle aspiration. Yes Javan R. et al [ 33 ] Medical Imaging Technical Report Made a model using various materials of different echogenicity and resonance to create a life like model of the neck for US and CT guided procedures NA NA The model allows for training in thyroid and lymph node biopsies, internal jugular vein access, facet joint injections, and pain management interventions. Accurately presents different tissue densities.…”

Section: Resultsmentioning

confidence: 99%

3D printing in critical care: a narrative review

et al. 2020

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Background 3D printing (3DP) has gained interest in many fields of medicine including cardiology, plastic surgery, and urology due to its versatility, convenience, and low cost. However, critical care medicine, which is abundant with high acuity yet infrequent procedures, has not embraced 3DP as much as others. The discrepancy between the possible training or therapeutic uses of 3DP in critical care and what is currently utilized in other fields needs to be addressed. Objective This narrative literature review describes the uses of 3DP in critical care that have been documented. It also discusses possible future directions based on recent technological advances. Methods A literature search on PubMed was performed using keywords and Mesh terms for 3DP, critical care, and critical care skills. Results Our search found that 3DP use in critical care fell under the major categories of medical education (23 papers), patient care (4 papers) and clinical equipment modification (4 papers). Medical education showed the use of 3DP in bronchoscopy, congenital heart disease, cricothyroidotomy, and medical imaging. On the other hand, patient care papers discussed 3DP use in wound care, personalized splints, and patient monitoring. Clinical equipment modification papers reported the use of 3DP to modify stethoscopes and laryngoscopes to improve their performance. Notably, we found that only 13 of the 31 papers were directly produced or studied by critical care physicians. Conclusion The papers discussed provide examples of the possible utilities of 3DP in critical care. The relative scarcity of papers produced by critical care physicians may indicate barriers to 3DP implementation. However, technological advances such as point-of-care 3DP tools and the increased demand for 3DP during the recent COVID-19 pandemic may change 3DP implementation across the critical care field.

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“…The technique is also not suitable for simulation of soft tissue. To simulate brain tissue, for example, it might be necessary to either print it with a method that is able to produce soft and hard materials directly 12,13 or to print molds that can be used to cast soft objects, such as silicone rubber 14 .…”

Section: Discussionmentioning

confidence: 99%

Multicolor 3D Printing of Complex Intracranial Tumors in Neurosurgery

Kosterhon¹,

Neufurth²,

Neulen³

et al. 2020

JoVE

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Three-dimensional (3D) printing technologies offer the possibility of visualizing patient-specific pathologies in a physical model of correct dimensions. The model can be used for planning and simulating critical steps of a surgical approach. Therefore, it is important that anatomical structures such as blood vessels inside a tumor can be printed to be colored not only on their surface, but throughout their whole volume. During simulation this allows for the removal of certain parts (e.g., with a high-speed drill) and revealing internally located structures of a different color. Thus, diagnostic information from various imaging modalities (e.g., CT, MRI) can be combined in a single compact and tangible object. However, preparation and printing of such a fully colored anatomical model remains a difficult task. Therefore, a step-by-step guide is provided, demonstrating the fusion of different cross-sectional imaging data sets, segmentation of anatomical structures, and creation of a virtual model. In a second step the virtual model is printed with volumetrically colored anatomical structures using a plaster-based color 3D binder jetting technique. This method allows highly accurate reproduction of patient-specific anatomy as shown in a series of 3D-printed petrous apex chondrosarcomas. Furthermore, the models created can be cut and drilled, revealing internal structures that allow for simulation of surgical procedures.

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An Assembled Prototype Multimaterial Three-Dimensional–Printed Model of the Neck for Computed Tomography– and Ultrasound-Guided Interventional Procedures

Cited by 11 publications

References 29 publications

Using 3D printing techniques to create an anthropomorphic thorax phantom for medical imaging purposes

Using 3D printing techniques to create an anthropomorphic thorax phantom for medical imaging purposes

3D printing in critical care: a narrative review

Multicolor 3D Printing of Complex Intracranial Tumors in Neurosurgery

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