Cerebrovascular biomodelling: a technical note

D’Urso, Paul; Thompson, Robert G.; Atkinson, R. L.; Weidmann, Michael; Redmond, Michael; Hall, Bruce; Jeavons, Susan J; Benson, Mark D.; Earwaker, W J

doi:10.1016/s0090-3019(99)00143-3

Cited by 87 publications

(73 citation statements)

References 26 publications

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“…Moreover, prototypes do not show the presence of intra-arterial thrombus or calcification, which has previously been described 14,16 . However, according to Kimura et al …”

Section: -Acta Cirúrgica Brasileira -Vol 28 (11) 2013mentioning

confidence: 67%

“…The most similarly related application of it is in making maxillary prosthetics 11 , cranioplasty molds 12 and for surgical planning of aortic aneurysms 13 . In the vascular neurosurgery field, in 1999, D'Urso et al 16 first described the use of RP technique to fabricate IA prototypes, and reported that biomodels could optimize IA's treatment.…”

Section: Discussionmentioning

confidence: 99%

“…Emphasis is placed, especially in cases of complex anatomy, on the ability to view the anatomical structures and its surroundings, from any perspective, to provide a better understanding of the angioarchitecture of the aneurysm and arteries involved in each case 16 . Generally, patients with complex wide neck aneurysms have an indication for microsurgical clipping 19 , which demands greater skill of the surgeon performing the procedure 15 .…”

Section: Discussionmentioning

confidence: 99%

“…Generally, patients with complex wide neck aneurysms have an indication for microsurgical clipping 19 , which demands greater skill of the surgeon performing the procedure 15 . Less experienced surgeons, residents or even those who have not attained the learning curve, may benefit from biomodels, both for anatomical recognition 16 and for handling the clips and appliers 15,20 . While currently the amount of open surgery is limited, the use of RP for surgical simulations of IA could be crucial to enhance the skills of less experienced surgeons.…”

Section: Discussionmentioning

confidence: 99%

“…As a matter of fact, biomodels can facilitate the explanation of the case and surgical risk to the patients and their relatives 14,15 . Studies have reported that the existence of a physical prototype, in fact, assisted in obtaining informed consent of the patients, improved understanding the disease and the surgical procedure that would be performed 14,16 . Finally, it is important to emphasize that an actual physical model of the 3D surgical anatomy preoperatively provides great confidence to the surgeon, and consequently to the patient, and may even reduce the surgical time and risk.…”

Section: -Acta Cirúrgica Brasileira -Vol 28 (11) 2013mentioning

confidence: 99%

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Rapid prototyping of three-dimensional biomodels as an adjuvant in the surgical planning for intracranial aneurysms

et al. 2013

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PURPOSE:To fabricate a three-dimensional biomodels of intracranial aneurysms, using rapid prototyping technology, to facilitate optimal anatomical visualization of aneurysms prior to and during surgery. METHODS:Four intracranial aneurysms cases were selected for this study. Using CT angiography images, the rapid prototyping process was completed using a PolyJet technology machine. The size and morphology of the prototypes were compared to brain digital subtraction arteriography of the same patients. RESULTS:The biomodels reproduced the exact location and morphology of the intracranial aneurysms, particularly the necks, in lifesize dimensions and exactly the same as measured by digital subtraction arteriography. The arterial segments adjacent to the aneurysm and arteries anatomically known by the surgeon were also shown, which could guide the surgeon to the aneurysmal segment. The models showed an average unit cost of US$ 130 and each one took an average of 20 hours to be fabricated. CONCLUSIONS:It is possible to fabricate 3D physical biomodels of intracranial aneurysms from CT angiography images. These prototypes may be useful in the surgical planning for intracranial aneurysms to clarify the anatomy, define surgical techniques and facilitate the choice of suitable materials, such as clips and clip appliers.

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“…Moreover, prototypes do not show the presence of intra-arterial thrombus or calcification, which has previously been described 14,16 . However, according to Kimura et al …”

Section: -Acta Cirúrgica Brasileira -Vol 28 (11) 2013mentioning

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: -Acta Cirúrgica Brasileira -Vol 28 (11) 2013mentioning

confidence: 99%

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Rapid prototyping of three-dimensional biomodels as an adjuvant in the surgical planning for intracranial aneurysms

et al. 2013

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3D Printing of Physical Organ Models: Recent Developments and Challenges

Jin

Kang

et al. 2021

Advanced Science

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Physical organ models are the objects that replicate the patient-specific anatomy and have played important roles in modern medical diagnosis and disease treatment. 3D printing, as a powerful multi-function manufacturing technology, breaks the limitations of traditional methods and provides a great potential for manufacturing organ models. However, the clinical application of organ model is still in small scale, facing the challenges including high cost, poor mimicking performance and insufficient accuracy. In this review, the mainstream 3D printing technologies are introduced, and the existing manufacturing methods are divided into "directly printing" and "indirectly printing", with an emphasis on choosing suitable techniques and materials. This review also summarizes the ideas to address these challenges and focuses on three points: 1) what are the characteristics and requirements of organ models in different application scenarios, 2) how to choose the suitable 3D printing methods and materials according to different application categories, and 3) how to reduce the cost of organ models and make the process simple and convenient. Moreover, the state-of-the-art in organ models are summarized and the contribution of 3D printed organ models to various surgical procedures is highlighted. Finally, current limitations, evaluation criteria and future perspectives for this emerging area are discussed.

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