Application of virtual endoscopy to patient-specific planning of endovascular surgical procedures

2001 ◽  
Author(s):  
Oscar Acosta ◽  
Pascal Haigron ◽  
Antoine Lucas ◽  
Marc-Emmanuel Bellemare
Keyword(s):  
Surgical Procedures ◽  
Virtual Endoscopy ◽  
Patient Specific

Intelligent Collaborative Platform for Development of Personalized Surgical Orthopedic Guides

2015 ◽  
Vol 638 ◽  
pp. 303-309 ◽  
Author(s):  
Diana Popescu ◽  
Dan Lăptoiu ◽  
Anton Hadăr
Keyword(s):  
Surgical Procedures ◽  
Medical Devices ◽  
Orthopedic Surgery ◽  
New Technologies ◽  
Evaluation Criteria ◽  
Research Trend ◽  
Patient Specific ◽  
Research Perspectives ◽  
Computer Aided ◽  
Technical Specifications

Currently, the processes of developing new medical devices (in particular, patient specific guides for orthopedic surgery being of interest in our research), is hampered by the difficulty of correctly and efficiently quantifying and translating the specific medical requirements in terms of technical specifications. This is caused by the intrinsic difficulty of the demarche, but also by a complicated communication between surgeon and engineer given the different practical and research perspectives, specific constraints, motivation, evaluation criteria and professional language barrier. The advent and development of new technologies with applications in the medical field, such as robotics, haptic-based virtual and augmented reality, additive manufacturing, collaborative modeling, knowledge-based support decision systems, etc., make now possible to bridge the gap between surgeons’ ideas and needs and their practical materialization into new customized medical devices. The paper enrolls in this research trend, presenting a general framework for the development of an intelligent e-health platform, which provides in a collaborative environment the necessary knowledge and computer-aided tools for translating surgeons’ needs into technical specifications for the design and manufacturing of patient-specific guides for orthopedic surgery. These guides can be used in the minimally invasive surgical procedures and for reducing the x-ray radiation exposure during surgery, and for increasing accuracy in performing different types of specific orthopedic surgical procedures such as cutting, drilling, tapping and aligning, by transferring the tools trajectories from computer-aided planning to surgery.

scholarly journals Virtual Surgical Planning and Pre-operative Simulation for Maxillofacial Reconstruction with 3D Printing Technology in Tumor-affected Facial Deformity

2020 ◽  
Author(s):  
Gyeong-Man Kim ◽  
Masreshaw Demelash Bayleyegn ◽  
Song-Jung Kim
Keyword(s):  
Ct Scan ◽  
Surgical Procedures ◽  
Surgical Planning ◽  
3D Visualization ◽  
Operating Time ◽  
Patient Specific ◽  
Autogenous Bone ◽  
Virtual Surgical Planning ◽  
Virtual Models ◽  
Maxillofacial Reconstruction

Abstract BackgroundThe high anatomical complexity of maxillofacial defects caused by tumor can pose a formidable challenge for clinicians when designing an appropriate plan for surgical reconstruction. The intention of this work was to restore the complex anatomy with maximum possible facial functionality and aesthetics of the patient. Based on the medical images generated by computed tomography (CT) scan an optimal therapeutic planning for complex maxillofacial reconstruction was designed. MethodFirstly, the volumetric data sets were carefully evaluated and deeply inspected for accurate diagnosis. Regarding 3D visualization of the CT scan images 3D virtual models for regions of interest were created using a special software of 3D Slicer. Using the resulting 3D virtual models a well-defined virtual surgical planning was generated for multiple surgical procedures, including the osteotomies for bone defects, harvesting autogenous bone graft and creating a customized implant. ResultsThe relevant patient-specific anatomical models for real surgery were translated into the 3D printed physical models, with which the surgeons can rehearse the surgery before coming into the operating room. Precisely defined multiple surgeries for complex maxillofacial reconstruction were proposed in this research that could be transferred to the real-time surgery. ConclusionsThe proposed surgical approach will be beneficial both for the surgeons and patient, including improvement in surgical precision and outcomes, reduction in operating time, as well as understanding surgical procedures and decision making etc.

Design & Manufacturing of Implant for reconstructive surgery: A Case Study

2017 ◽  
Vol 2 (2) ◽  
pp. 143 ◽  
Author(s):  
Manmadhachary A ◽  
Santosh Kumar Malyala ◽  
Ravi Kumar Y. ◽  
Haranadha Reddy M. ◽  
Adityamohan Alwala
Keyword(s):  
Surgical Procedures ◽  
Computer Aided Design ◽  
Maxillofacial Surgery ◽  
Patient Specific ◽  
Prototype Model ◽  
Fused Deposition Modelling ◽  
Treatment Protocols ◽  
3D Cad ◽  
Fused Deposition ◽  
Inferior Border

<p>Additive Manufacturing (AM), also known as 3D printing is an emerging technology in oral &amp; maxillofacial surgery with respect to reconstructive bone surgery. Such treatment protocols often require customized implants to fulfill the functional and aesthetic requirements. Currently, such customized implants are being manufactured using AM technology. This paper describes a mandible defect of oral &amp; maxillofacial surgery. The fracture and defect of the mandible inferior border is one of the serious complications during alignment and fixing of the implant. Reconstruction of such defects is daunting tasks. The case report describes a method based on Computer Aided Design (CAD) and AM for individual design, fabrication and implantation of a mandible inferior border. A 40-year old male meet an accident with rash drive. The patient specific customized implant is designed with patient Computed Tomography (CT) data. The CT images in Digital Imaging and Communication in Medicine (DICOM) file format is used to develop a 3D CAD model of customized implant. The implant is designed to maintain the symmetry of mandible from right to left. The designed implant model is manufactured by Fused Deposition Modelling (FDM) techniques with a biocompatible material. The patient mandible prototype model was manufactured by AM process, which is helpful for pre-planning of surgical procedures. For these pre-planning surgical procedures, a perfect fit obtained during surgery. The patient ultimately regained reasonable mandible contour and appearance of the face. </p>

A PATIENT-SPECIFIC MODELING APPROACH FOR PLANNING SINGLE VENTRICLE SURGICAL PROCEDURES

2012 ◽  
Vol 45 ◽  
pp. S129
Author(s):  
Chiara Corsini ◽  
Alessia Baretta ◽  
Catriona Baker ◽  
Tain-Yen Hsia ◽  
Silvia Schievano ◽  
...  
Keyword(s):  
Surgical Procedures ◽  
Single Ventricle ◽  
Patient Specific ◽  
Modeling Approach ◽  
Patient Specific Modeling ◽  
Specific Modeling

scholarly journals Preoperative Planning of Spiral Intestinal Lengthening and Tailoring: A Geometrical Approach

2021 ◽  
Vol 8 (2) ◽  
pp. 20
Author(s):  
Riccardo Coletta ◽  
Elisa Mussi ◽  
Francesca Uccheddu ◽  
Yary Volpe ◽  
Antonino Morabito
Keyword(s):  
Intestinal Absorption ◽  
Surgical Procedures ◽  
Preoperative Planning ◽  
Pathological Condition ◽  
Intestinal Wall ◽  
Patient Specific ◽  
Geometrical Approach ◽  
Extensive Resection ◽  
Intestinal Transit Time ◽  
Intestinal Lengthening

Short bowel syndrome is a pathological condition resulting from extensive resection of the intestine, generally performed due to congenital abnormalities, Crohn’s disease, mesenteric ischemia, or neoplasms. The main consequence of this syndrome is a reduction of intestinal absorption, which causes malnutrition and dehydration. In the most severe cases, specific and complex surgical procedures are requested to manage the syndrome. Such procedures consist of the intestinal lengthening, with lead to an increase of absorptive mucosal surface and intestinal transit time and an overall enhancement of intestinal absorption. One of the most promising surgical procedures is spiral intestinal lengthening and tailoring, which consists of a spiral incision of the intestinal wall and in the elongation longitudinally of the intestine by sliding one flap over the other. The final intestinal lengthening is strictly dependent on a series of parameters, some of which are defined by the surgeon. The present paper proposes a mathematical model, based on patient specific anatomical data, which aims to help the surgeon in defining the optimal parameters for the intervention and in foreseeing its outcomes from the preoperative planning phase. Such a tool can assist the physician in the surgery room by improving the procedure and reducing surgical times.

scholarly journals Analysis of the Influence of Osteosynthesis Technique and Patient-specific Factors on the Outcome of Subtrochanteric Fracture Treatment

2020 ◽  
Vol 14 (1) ◽  
pp. 140-149
Author(s):  
Christoph Schulze ◽  
Erwin Kollig ◽  
Katharina Estel ◽  
Claudia Hacke ◽  
Andre Gutcke ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Surgical Procedures ◽  
Weight Bearing ◽  
Femoral Fractures ◽  
Patient Specific ◽  
Complication Rates ◽  
Fracture Type ◽  
Surgeon Experience ◽  
Duration Of Surgery

Objective: The number of subtrochanteric femoral fractures will continue to grow on account of demographic developments. The treatment of choice is reduction and surgical stabilisation. Intramedullary (IO) and extramedullary (EO) techniques are available for this purpose. A final assessment has not been made of which technique is superior with regard to treatment outcome, complication rates, and revision rates. The objective of this retrospective study was to compare surgical procedures with regard to weight bearing, length of hospital stay, the occurrence of complications, and the necessity of surgical revisions. Methods: This retrospective study included 77 patients (74.9 ± 14.9 years; 42.9% male). Associations between surgical procedures and treatment outcomes, complications and revision rates were calculated by linear and logistic regression analysis. To investigate the effect of surgical procedure within patients with fracture type 2 B according to Russel-Taylor classification, a subgroup analysis was performed. Results: In case of fracture type 2 B, according to Russell-Taylor classification, EO took 80 minutes longer on average than the intramedullary technique (p = 0.001), although surgeon experience plays an important role. Common complications were more frequently associated with IO than with EO. Surgical revisions were required more often in the extramedullary group (OR 4.5; 95% CI: 0.87 – 23.19). Patients in the intramedullary group were discharged 3.4 days earlier from the hospital (p = 0.024). Older patients had a higher risk for the occurrence of complications, but BMI and the experience of the surgeon did not. Patients with intramedullary stabilisation frequently showed better postoperative weight-bearing stability. Conclusion: The intramedullary technique offers advantages to both patients and hospitals with regard to outcome, duration of surgery, and length of stay in the hospital. Although, extramedullary implants are less expensive, this advantage is clearly reduced by the longer duration of surgery and hospital stays.

1426: BPH-Related Surgical Procedures in Incontinent Males with BPH

2006 ◽  
Vol 175 (4S) ◽  
pp. 460-461
Author(s):  
Euna Han ◽  
Libby K. Black ◽  
John P. Lavelle
Keyword(s):  
Surgical Procedures
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