Three-Dimensional Printing Creates Models for Surgical Planning of Aortic Valve Replacement After Previous Coronary Bypass Grafting

Sodian, Ralf; Schmauß, Daniel; Markert, Mathias; Weber, Stefan; Nikolaou, Konstantin; Haeberle, Sandra; Vogt, Ferdinand; Vicol, Calin; Lueth, Tim C.; Reichart, Bruno; Schmitz, Christoph

doi:10.1016/j.athoracsur.2007.12.033

Cited by 100 publications

(57 citation statements)

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“…Recently, three-dimensional (3D) printing organ models based on preoperative computed tomography (CT) and magnetic resonance imaging (MRI) images have been developed to understand the patient's anatomy in the fields of cardiovascular surgery, neurosurgery and maxillofacial surgery [3][4][5][6][7]. Therefore, we produced a three-dimensional (3D) printing liver model used to visualize complex structures, such as the portal vein and hepatic vein, as well as the tumor, based on preoperative CT images and performed surgical simulation for the treatment of HB at the porta hepatis in a child.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional liver model based on preoperative CT images as a tool to assist in surgical planning for hepatoblastoma in a child

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Three-dimensional liver model based on preoperative CT images as a tool to assist in surgical planning for hepatoblastoma in a child

et al. 2015

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“…As already used by some specialties (eg, orthopedic surgery, congenital cardiac surgery), 18,19 3-dimension-printed models of the aortic root may aid in assessment of valve anatomy, sizing, orientation, and other difficulties associated with SAVR. The resolution of current printers has improved and is actually higher than MDCT resolution, is cheap relative to the intervention, and can be performed rapidly (ie, within 1 hour).…”

Section: Discussionmentioning

confidence: 99%

Aortic Valve Annular Sizing

George

Guglielmetti

Bettinger

et al. 2017

Circ: Cardiovascular Imaging

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Background— Appropriate valve sizing is critical in aortic valve replacement. We hypothesized that direct intraoperative valve sizing results in smaller aortic annular diameters compared with sizing based on systolic-phase multidetector computerized tomographic (MDCT) imaging. Methods and Results— We retrospectively analyzed 78 patients undergoing surgical aortic valve replacement for severe aortic stenosis between 2012 and 2014 at our institution. Preoperative MDCT measurements of the aortic annulus served as basis for assignment to a theoretical surgical valve size, which was then (1) compared to the implanted valve size and (2) to a theoretical transcatheter aortic valve replacement valve size. To quantify the resulting differences, geometric orifice areas (GOA) were calculated. MDCT-based sizing produced the same valve size for n=34 patients (group CT-same), a larger valve with a 25% increased GOA in n=32 patients (group CT-Lg) and a smaller GOA by 22% in n=12 patients (group CT-Sm). On the basis of MDCT measurements, 41% of valves implanted were undersized. The comparison of intraoperative implanted to a theoretical transcatheter aortic valve replacement valve size resulted in GOAs 25% larger for patients in group CT-same, 40.6% larger in group CT-Lg and 14.6% larger in group CT-Sm. Conclusions— Preoperative MDCT measurements differ substantially from direct intraoperative assessment of the aortic annulus. Implanted surgical aortic valve replacement valves were smaller relative to MDCT-based sizing in 41% of patients, and the potential GOA was between 25% and 40.6% larger if patients had undergone transcatheter aortic valve replacement.

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“…The use of 3D printing to rapidly manufacture anatomic models used for presurgical planning of complex anatomy in adult and pediatric patients has been well described, particularly for orthopedic and congenital cardiac applications. [8][9][10][11][12][13] Prenatal printing of fetal surface anatomy as a social product is being explored commercially in Japan, and other groups have preliminarily examined 3D modeling of fetal imaging for characterizing the central nervous system. [14][15][16] Initial studies by Werner and colleagues have demonstrated that airway patency can be evaluated by fetal MRI and 3D modeling in cases of large cervical tumors that could cause airway compression.…”

Section: Discussionmentioning

confidence: 99%

Antenatal Three-Dimensional Printing of Aberrant Facial Anatomy

VanKoevering¹,

Morrison²,

Prabhu

et al. 2015

Pediatrics

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Congenital airway obstruction poses a life-threatening challenge to the newborn. We present the first case of three-dimensional (3D) modeling and 3D printing of complex fetal maxillofacial anatomy after prenatal ultrasound indicated potential upper airway obstruction from a midline mass of the maxilla. Using fetal MRI and patient-specific computer-aided modeling, the craniofacial anatomy of the fetus was manufactured using a 3D printer. This model demonstrated the mass to be isolated to the upper lip and maxilla, suggesting the oral airway to be patent. The decision was made to deliver the infant without a planned ex utero intrapartum treatment procedure. The neonate was born with a protuberant cleft lip and palate deformity, without airway obstruction, as predicted by the patient-specific model. The delivery was uneventful, and the child was discharged without need for airway intervention. This case demonstrates that 3D modeling may improve prenatal evaluation of complex patient-specific fetal anatomy and facilitate the multidisciplinary approach to perinatal management of complex airway anomalies.

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Three-Dimensional Printing Creates Models for Surgical Planning of Aortic Valve Replacement After Previous Coronary Bypass Grafting

Cited by 100 publications

References 10 publications

Three-dimensional liver model based on preoperative CT images as a tool to assist in surgical planning for hepatoblastoma in a child

Three-dimensional liver model based on preoperative CT images as a tool to assist in surgical planning for hepatoblastoma in a child

Aortic Valve Annular Sizing

Antenatal Three-Dimensional Printing of Aberrant Facial Anatomy

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