Development of a patient‐specific atrial phantom model for planning and training of inter‐atrial interventions

Morais, Pedro; Tavares, João Manuel R. S.; Queirós, Sandro; Veloso, Fernando; D’hooge, Jan; Vilaça, João L.

doi:10.1002/mp.12559

Cited by 26 publications

(28 citation statements)

References 42 publications

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“…Among the papers used, 10 have assessed the resolution or accuracy of the printer by quantitative (numerical) comparison, [26][27][28][29][30][31][32][33][34][35] 10 by qualitative (figural) comparison, 22,[36][37][38][39][40][41][42][43][44] and 14 by both quantitative and qualitative comparison. 10,21,[45][46][47][48][49][50][51][52][53][54][55][56] Sixteen of the research articles do not include a verification of the printers' resolutions.…”

Section: A Characterization Of 3d-printed Phantom Spatial Accuracymentioning

confidence: 99%

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Recent advances on the development of phantoms using 3D printing for imaging with CT, MRI, PET, SPECT, and ultrasound

2018

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Purpose: Printing technology, capable of producing three-dimensional (3D) objects, has evolved in recent years and provides potential for developing reproducible and sophisticated physical phantoms. 3D printing technology can help rapidly develop relatively low cost phantoms with appropriate complexities, which are useful in imaging or dosimetry measurements. The need for more realistic phantoms is emerging since imaging systems are now capable of acquiring multimodal and multiparametric data. This review addresses three main questions about the 3D printers currently in use, and their produced materials. The first question investigates whether the resolution of 3D printers is sufficient for existing imaging technologies. The second question explores if the materials of 3D-printed phantoms can produce realistic images representing various tissues and organs as taken by different imaging modalities such as computer tomography (CT), positron emission tomography (PET), single-photon emission computed tomography (SPECT), magnetic resonance imaging (MRI), ultrasound (US), and mammography. The emergence of multimodal imaging increases the need for phantoms that can be scanned using different imaging modalities. The third question probes the feasibility and easiness of "printing" radioactive or nonradioactive solutions during the printing process. Methods: A systematic review of medical imaging studies published after January 2013 is performed using strict inclusion criteria. The databases used were Scopus and Web of Knowledge with specific search terms. In total, 139 papers were identified; however, only 50 were classified as relevant for this paper. In this review, following an appropriate introduction and literature research strategy, all 50 articles are presented in detail. A summary of tables and example figures of the most recent advances in 3D printing for the purposes of phantoms across different imaging modalities are provided. Results: All 50 studies printed and scanned phantoms in either CT, PET, SPECT, mammography, MRI, and US-or a combination of those modalities. According to the literature, different parameters were evaluated depending on the imaging modality used. Almost all papers evaluated more than two parameters, with the most common being Hounsfield units, density, attenuation and speed of sound. Conclusions: The development of this field is rapidly evolving and becoming more refined. There is potential to reach the ultimate goal of using 3D phantoms to get feedback on imaging scanners and reconstruction algorithms more regularly. Although the development of imaging phantoms is evident, there are still some limitations to address: One of which is printing accuracy, due to the printer properties. Another limitation is the materials available to print: There are not enough materials to mimic all the tissue properties. For example, one material can mimic one property-such as the density of real tissue-but not any other property, like speed of sound or attenuation.

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Section: A Characterization Of 3d-printed Phantom Spatial Accuracymentioning

confidence: 99%

“…ProJet HD3500 Ultimaker B€ ucking, 33 Nikitichev, 67 Morais, 46 bone, the upper mandible and lower maxilla, between the CT scan of a patient and the phantom measurements in terms of width. The average percentage difference of the anatomical features was 1.71%.…”

Section: D Systemsmentioning

confidence: 99%

Recent advances on the development of phantoms using 3D printing for imaging with CT, MRI, PET, SPECT, and ultrasound

2018

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“…3). Both static models were constructed using the strategy described in [10]. Implementation Details: Since mock models were used, the TTE probe was kept fixed.…”

Section: Methodsmentioning

confidence: 99%

A Novel Interventional Guidance Framework for Transseptal Puncture in Left Atrial Interventions

Morais

Vilaça

Queirós

et al. 2018

Simulation, Image Processing, and Ultrasound Systems for Assisted Diagnosis and Navigation

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Access to the left atrium is required for several percutaneous cardiac interventions. In these procedures, the inter-atrial septal wall is punctured using a catheter inserted in the right atrium via the venous system under image guidance. Although this approach (termed transseptal puncture-TSP) is performed daily, complications are common. Moreover, the exact location at which the septum needs to be traversed is determined entirely based on the interventionist's experience, which is sub-optimal. In this work, we present a novel concept for the development of an interventional guidance framework for TSP. The pre-procedural planning stage is fused with 3D intra-procedural images (echocardiography) using manually defined landmarks, transferring the relevant anatomical landmarks to the interventional space and enhancing the echocardiographic images. In addition, electromagnetic sensors are attached to the surgical instruments, tracking them and allowing the inclusion of their spatial position in the enhanced intra-procedural world. Two patient-specific atrial phantom models were used to evaluate this framework. One operator performed the planning, calibrated the setup and performed the puncture. To assess the framework's accuracy, a metallic landmark was positioned in the punctured location and compared with the ideal one. The intervention was possible in both models, but in one case positioning of the landmark failed. An error of approximately of 6 mm was registered for the successful case. Technical characteristics of the framework showed an acceptable performance, with a frame rate ~5 frames/sec. The manual calibration setup required ~60 min. This study presented a proof-of-concept for an interventional guidance framework for TSP. However, a more automated solution and further studies to assess its accuracy are required.

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“…Al realizar una búsqueda en Pubmed con los términos: "3D printing AND surgical AND planning" se encuentran 363 artículos (al 6 de diciembre del 2017), con un incremento exponencial en el número de publicaciones en los últimos años: La mayoría de los trabajos hacen referencia a su uso en cirugía e intervencionismo cardíaco [4,[15][16][17][18][19][20][21], pero provienen de práctica-mente todas las especialidades quirúrgicas, incluso varios artículos reportan su empleo y beneficios para planificar la separación de siameses [6,40,42].…”

Section: Caso Clínico: Uso De Biomodelos Tridimensionales Para La Plaunclassified

“…En la actualidad son muchas las ramas quirúrgicas que se están beneficiando de las tecnologías de impresión 3D con estos fines alrededor del mundo, entre ellas neurocirugía [5,[8][9][10][11][12][13][14], cirugía cardíaca [4,[15][16][17][18][19][20][21], ortopédica [22][23][24][25][26][27], maxilofacial [28][29][30][31], otorrinolaringología [32][33][34], cirugía hepática [35][36][37], urológica [3,38,39], pediátrica [6,[40][41][42], ginecológica [43,44], plástica [45], torácica [46], cirugía general [47].…”

Section: Introductionunclassified

Caso Clínico: Uso de Biomodelos Tridimensionales para la Planificación Preoperatoria de Tumores Craneales Fronto - orbitarios

et al. 2017

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Development of a patient‐specific atrial phantom model for planning and training of inter‐atrial interventions

Abstract: The proposed strategy proved to be accurate and feasible for the correct generation of complex personalized atrial models.

Cited by 26 publications

References 42 publications

Recent advances on the development of phantoms using 3D printing for imaging with CT, MRI, PET, SPECT, and ultrasound

Recent advances on the development of phantoms using 3D printing for imaging with CT, MRI, PET, SPECT, and ultrasound

A Novel Interventional Guidance Framework for Transseptal Puncture in Left Atrial Interventions

Caso Clínico: Uso de Biomodelos Tridimensionales para la Planificación Preoperatoria de Tumores Craneales Fronto - orbitarios

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