3D Printed Patient Specific Models from Medical Imaging - A General Workflow

Ravi, T.; Ranganathan, Rajesh; Pugalendhi, Arivazhagan; Arumugam, Sivasankar

doi:10.1016/j.matpr.2020.01.416

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…In our study, we used 0.5 mm thickness images, and the postprocessing was made by radiologists as suggested by Akmal et al [ 18 ] and Huotilainen et al [ 19 ], ensuring that the interpretation of the images matches the 3D printed model and the structures are being well-differentiated from imaging modality artifacts. For postprocessing, we used 3D Slicer, an open-source software [ 7 ] that has been found to be suitable for segmentation as well as in other studies with 3D printing [ 15 , 20 ] because it is free and certified for medical use.…”

Section: Discussionmentioning

confidence: 99%

“…The models were printed using a UV-LCD printer with a higher quality resolution and a good surface finishing ( Figure 4 ) compared to FDM (Fused Deposition Modelling) technology mainly used in other aneurysm printing studies [ 15 , 20 ]. We also had a very good time interval (a mean of 3 h) from data acquisition to the completed model compared with Błaszczyk et al who disclosed a time-lapse of approximately 4 h [ 21 ] or Faraj et al who disclosed a time-lapse of 24 to 28 h [ 14 ].…”

Section: Discussionmentioning

confidence: 99%

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3D Printed Models—A Useful Tool in Endovascular Treatment of Intracranial Aneurysms

et al. 2021

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Many developments were made in the area of endovascular treatment of intracranial aneurysms, but this procedure also requires a good assessment of vascular anatomy prior to intervention. Seventy-six cases with brain aneurysms were selected and 1:1 scale 3D printed models were created. We asked three interventional neurosurgeons with different degrees of experience (ten years, four years, and a fourth-year resident) to review the cases using CTA (computed tomography angiogram) with MPR (multiplanar reconstructions) and VRT (volume rendering technique) and make a decision: coil embolization or stent-assisted coil embolization. After we provided them with the 3D printed models, they were asked to review their treatment plan. Statistical analysis was performed and the endovascular approach changed in 11.84% of cases for ten-year experienced neurosurgeons, 13.15% for four years experienced neurosurgeon, and 21.05% for residents. The interobserver agreement was very good between the ten years experienced interventionist and four years experienced interventionist when they analyzed the data set that included the 3D printed model. The agreement was higher between all physicians after they examined the printed model. 3D patient-specific printed models may be useful in choosing between two different endovascular techniques and also help the residents to better understand the vascular anatomy and the overall procedure.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

3D Printed Models—A Useful Tool in Endovascular Treatment of Intracranial Aneurysms

et al. 2021

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“…Currently, several -academic and commercial -workflow pipelines have been adapted and optimized for outer ear replicas [33][34][35][36][37][38][39]. These applications focus on cost effectiveness based on estimated price/piece values, time expenditure and quality of end-products.…”

Section: Basic Workflowmentioning

confidence: 99%

Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status

Wersényi,

Scheper,

Spagnol

et al. 2023

Head Face Med

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Current 3D scanning and printing technologies offer not only state-of-the-art developments in the field of medical imaging and bio-engineering, but also cost and time effective solutions for surgical reconstruction procedures. Besides tissue engineering, where living cells are used, bio-compatible polymers or synthetic resin can be applied. The combination of 3D handheld scanning devices or volumetric imaging, (open-source) image processing packages, and 3D printers form a complete workflow chain that is capable of effective rapid prototyping of outer ear replicas. This paper reviews current possibilities and latest use cases for 3D-scanning, data processing and printing of outer ear replicas with a focus on low-cost solutions for rehabilitation engineering.

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“…In this process, a successive series of bidimensional images is modeled using computer-aided design (CAD) software and subsequently used to create a digital model which serves to generate a 3D object whose geometry and shape are accurate [62]. To develop a patient-specific device via additive manufacturing, the process usually comprises four consecutive steps: (i) image acquisition, (ii) image partition or segmentation, (iii) adjustment of a 3D-model, and (iv) printing of the 3D-model [63]. Images are usually acquired using computed tomography (CT) or magnetic resonance imaging (MRI) approaches, following precise and specific parameters.…”

Section: Overview Of 3d-printing Technology For Biomedical Applicationsmentioning

confidence: 99%

New Insights into the Application of 3D-Printing Technology in Hernia Repair

et al. 2021

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Abdominal hernia repair using prosthetic materials is among the surgical interventions most widely performed worldwide. These materials, or meshes, are implanted to close the hernial defect, reinforcing the abdominal muscles and reestablishing mechanical functionality of the wall. Meshes for hernia repair are made of synthetic or biological materials exhibiting multiple shapes and configurations. Despite the myriad of devices currently marketed, the search for the ideal mesh continues as, thus far, no device offers optimal tissue repair and restored mechanical performance while minimizing postoperative complications. Additive manufacturing, or 3D-printing, has great potential for biomedical applications. Over the years, different biomaterials with advanced features have been successfully manufactured via 3D-printing for the repair of hard and soft tissues. This technological improvement is of high clinical relevance and paves the way to produce next-generation devices tailored to suit each individual patient. This review focuses on the state of the art and applications of 3D-printing technology for the manufacture of synthetic meshes. We highlight the latest approaches aimed at developing improved bioactive materials (e.g., optimizing antibacterial performance, drug release, or device opacity for contrast imaging). Challenges, limitations, and future perspectives are discussed, offering a comprehensive scenario for the applicability of 3D-printing in hernia repair.

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3D Printed Patient Specific Models from Medical Imaging - A General Workflow

Cited by 8 publications

References 15 publications

3D Printed Models—A Useful Tool in Endovascular Treatment of Intracranial Aneurysms

3D Printed Models—A Useful Tool in Endovascular Treatment of Intracranial Aneurysms

Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status

New Insights into the Application of 3D-Printing Technology in Hernia Repair

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