Understanding the Patterns of Deformity of Wrist Fractures Using Computer Analysis

2020 ◽  
Vol 16 (3) ◽  
pp. 194-200
Author(s):  
Shai Luria
Keyword(s):  
Computer Modeling ◽  
Computer Analysis ◽  
Computer Models ◽  
Fracture Morphology ◽  
Patient Specific ◽  
Surgical Approaches ◽  
Surgical Indications ◽  
Wrist Fractures ◽  
Novel Methods ◽  
Made In

Computer modeling of the wrist has followed other fields in the search for descriptive methods to understand the biomechanics of injury. Using patient-specific 3D computer models, we may better understand the biomechanics of wrist fractures in order to plan better care. We may better estimate fracture morphology and stability and evaluate surgical indications, design more adequate or effective surgical approaches and develop novel methods of therapy. The purpose of this review is to question the actual advances made in the understanding of wrist fractures using computer models.

The new in monitoring of provision of cancer care in the Russian Federation

2019 ◽  
Vol 2019 (4) ◽  
pp. 35-37
Author(s):  
Наталья Стадченко ◽  
Natal'ya Stadchenko
Keyword(s):  
Russian Federation ◽  
Treatment Guidelines ◽  
Malignant Tumors ◽  
Patient Specific ◽  
Insurance Fund ◽  
Medical Aid ◽  
Proven Case ◽  
The Russian Federation ◽  
Positive Results ◽  
Made In

The Federal Compulsory Medical Insurance Fund created the system of a monitoring of medical aid provided for the oncology patients, which allows realizing control over execution of the treatment guidelines on every stage. Changes been made in the governing documents, aimed at development of patient-specific records of provided medical aid at suspicion on the malignant tumors or in proven case of the malignant tumors. The article presents the data on control and expert activities demonstrating positive results of that work.

scholarly journals Granular Cell Tumor: A Technical Approach for Resection of a Rare Suprasellar Mass

2020 ◽  
Vol 1 (4) ◽  
Author(s):  
Alexander J Schupper ◽  
Frank J Yuk ◽  
Hongyan Zou ◽  
Sadhna Ahuja ◽  
Nadejda M Tsankova ◽  
...  
Keyword(s):  
Surgical Resection ◽  
Granular Cell Tumor ◽  
Clinical Presentation ◽  
Granular Cell ◽  
Cell Tumor ◽  
Patient Specific ◽  
Surgical Approaches ◽  
Technical Approach ◽  
Multiple Strategies ◽  
Current State

Abstract BACKGROUND AND IMPORTANCE Granular cell tumors (GCTs) of the sellar and suprasellar regions are rare tumors that may be managed surgically by multiple strategies. The technical approaches for these tumors have rarely been described in the literature. CLINICAL PRESENTATION We introduce the case of a patient presenting with dizziness and headaches who was found to have a suprasellar and retrochiasmatic mass and eventually underwent surgical resection. We discuss the characteristics of this tumor, and the current state of the literature. Also included are details regarding the surgical approach utilized in this case, and a discussion of the various surgical approaches for this type of tumor. CONCLUSION There are several approaches for the surgical resection of suprasellar GCTs, and the approach utilized may depend on patient and/or surgeon considerations. Patient-specific considerations must be made to ensure maximal safe resection of these lesions.

Social Equality: Cognitive Modeling Based on Emotional Coherence Explains Attitude Change

2018 ◽  
Vol 5 (2) ◽  
pp. 247-256
Author(s):  
Paul Thagard
Keyword(s):  
Gender Identity ◽  
Cognitive Science ◽  
Computer Modeling ◽  
Attitude Change ◽  
Cognitive Modeling ◽  
Computer Models ◽  
Social Equality ◽  
Human Needs ◽  
Interdisciplinary Field ◽  
Distribution Of Income

Why do people have conflicting views of equality concerning the distribution of income, wealth, and satisfaction of vital needs? How do people form and sometimes change their views of equality and related issues, such as gender identity? Answers to such questions can benefit from cognitive science—the interdisciplinary field that includes neuroscience and computer modeling as well as psychology. According to principles of emotional coherence, attitudes develop and change because of connections among the values attached to systems of concepts, beliefs, and goals. People attach a positive value to concepts such as equality, if the concept fits with other positive concepts such as human needs, and opposes negative concepts such as poverty. Emotional coherence balances positive and negative values to yield an overall conclusion. Computer models based on emotional coherence explain people’s differing attitudes about equality and issues such as transgender rights. They also model how people sometimes change their minds.

scholarly journals Improving Prosthetic Selection and Predicting BMD from Biometric Measurements in Patients Receiving Total Hip Arthroplasty

Diagnostics ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 815
Author(s):  
Carlo Ricciardi ◽  
Halldór Jónsson ◽  
Deborah Jacob ◽  
Giovanni Improta ◽  
Marco Recenti ◽  
...  
Keyword(s):  
Decision Making ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Quality Data ◽  
National Database ◽  
Patient Specific ◽  
Surgical Approaches ◽  
Decision Making Process ◽  
Mineral Density ◽  
Total Hip

There are two surgical approaches to performing total hip arthroplasty (THA): a cemented or uncemented type of prosthesis. The choice is usually based on the experience of the orthopaedic surgeon and on parameters such as the age and gender of the patient. Using machine learning (ML) techniques on quantitative biomechanical and bone quality data extracted from computed tomography, electromyography and gait analysis, the aim of this paper was, firstly, to help clinicians use patient-specific biomarkers from diagnostic exams in the prosthetic decision-making process. The second aim was to evaluate patient long-term outcomes by predicting the bone mineral density (BMD) of the proximal and distal parts of the femur using advanced image processing analysis techniques and ML. The ML analyses were performed on diagnostic patient data extracted from a national database of 51 THA patients using the Knime analytics platform. The classification analysis achieved 93% accuracy in choosing the type of prosthesis; the regression analysis on the BMD data showed a coefficient of determination of about 0.6. The start and stop of the electromyographic signals were identified as the best predictors. This study shows a patient-specific approach could be helpful in the decision-making process and provide clinicians with information regarding the follow up of patients.

J025012 Patient-specific computer modeling of blood flow in cerebral arteries with aneurysm and stent

2012 ◽  
Vol 2012 (0) ◽  
pp. _J025012-1-_J025012-3
Author(s):  
Kenji Takizawa ◽  
Kathleen Schjodt ◽  
Nikolay Kostov ◽  
Anthony Puntel ◽  
Hirokazu Takagi ◽  
...  
Keyword(s):  
Blood Flow ◽  
Computer Modeling ◽  
Cerebral Arteries ◽  
Patient Specific

Novel Surgical Treatment Strategies for Unstable Lumbar Osteodiscitis: A 3-Patient Case Series

2017 ◽  
Vol 14 (6) ◽  
pp. 639-646 ◽  
Author(s):  
Michael A Bohl ◽  
Randall J Hlubek ◽  
Jay D Turner ◽  
Edward M Reece ◽  
U Kumar Kakarla ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Iliac Crest ◽  
Surgical Techniques ◽  
Case Series ◽  
Recurrent Infection ◽  
Surgical Approaches ◽  
Spinal Instability ◽  
Iliac Crest Graft ◽  
Imaging Results ◽  
Novel Methods

Abstract BACKGROUND Lumbar osteomyelitis frequently affects patients with medical comorbidities and poor preoperative health. Surgery is indicated when medical management fails or patients present with spinal instability or neural compromise. Successful arthrodesis can be difficult and sometimes requires alternative surgical techniques. OBJECTIVE To report 3 novel methods, each illustrated by a case, for achieving arthrodesis for lumbar osteomyelitis. METHODS A retrospective review was performed of 3 cases of surgical treatment of lumbar osteomyelitis. Novel aspects of the surgical techniques are reported, as are perioperative clinical details and imaging results. RESULTS In the first patient, a vascularized iliac crest graft on a quadratus lumborum pedicle was rotated into the posterolateral fusion bed of the affected level. In the second, an anterior approach with debridement of affected lumbar levels was followed by rotation of a vascularized iliac crest graft on an iliacus muscle pedicle into the anterior lumbar defect. In the third, a structural, nonvascularized iliac crest graft was harvested via a lateral approach to provide better surgical access, and an autologous tricortical bone graft was obtained for placement in the debridement defect. Follow-up imaging suggested successful early incorporation of all the grafts in the fusion beds. CONCLUSION Patients with multiple risk factors for pseudarthrosis and recurrent infection often require alternative surgical strategies to augment fusion. These 3 novel methods for lumbar debridement, fixation, and fusion using vascularized or nonvascularized autograft accommodate posterior, anterior, and lateral surgical approaches. Further experience with these techniques is required to compare outcomes with those of traditional techniques.

Optimal Management of Karst Sites with Cave Fauna Protection

1988 ◽  
Vol 15 (2) ◽  
pp. 149-158 ◽  
Author(s):  
Raymond Tercafs
Keyword(s):  
Computer Analysis ◽  
Resource Control ◽  
Optimal Management ◽  
Biological Value ◽  
Cave Fauna ◽  
Recreational Use ◽  
Aesthetic Values ◽  
Selection Of ◽  
Made In

An optimal management of large Karst sites, with emphasis on the conservation of cave fauna while allowing recreational use, is proposed. A detailed study of the relative biological value of each section in a reference cave, the east Belgian ‘Grottes de Han’ Cave, was made in comparison with 40 others in Belgium.Computer analysis provided a selection of optimal routes through the Cave. Each different route reflects the synthetic coefficients derived to weight biological and aesthetic values. This method of optimal cave resource control, developed to prevent deterioration in underground environments, can also be applied to other natural sites visited by humans.

scholarly journals Comparison between three techniques for videosinuscopy in cattle

2016 ◽  
Vol 46 (7) ◽  
pp. 1262-1267 ◽  
Author(s):  
Fernando Zanlorenzi Basso ◽  
Eduarda Maciel Busato ◽  
Jéssica Rodrigues da Silva ◽  
Rogério Luizari Guedes ◽  
Ivan Roque de Barros Filho ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Maxillary Sinus ◽  
Paranasal Sinuses ◽  
Frontal Sinus ◽  
Surgical Approaches ◽  
Endoscopic Anatomy ◽  
Flexible Colonoscope ◽  
Frontal Sinuses ◽  
Made In

ABSTRACT: Cattle have extensive paranasal sinuses that are susceptible to disease, most commonly sinusitis. The sinuscopy can be used to evaluate these structures, although there are no descriptions of this region for endoscopic anatomy, especially regarding the trocar position and the most appropriate type of endoscope. This study aimed to standardize the surgical approaches to sinuscopy in cattle by comparing the use of three endoscopes. Four accesses by trephination (one hole for each of the maxillary and frontal sinuses) were made in eight heads of slaughtered cattle. Each hole was inspected with three endoscopes: a 10mm flexible colonoscope with up to 180º of angulation, a 10mm 0° laparoscope and a 4mm 30º arthroscope. It was observed that all regions of the maxillary sinus were better visualized with the 4mm endoscope, and the structures of this sinus were less well visualized with the 10mm laparoscope. The frontal sinus was difficult to evaluate due to the tortuosity of its bony projections, and the cranial portion was not observed by the proposed accesses. The caudal regions of the frontal sinus such as the nuchal diverticulum and the back of the orbit had the greatest number of structures visualized by the 4mm endoscope, followed by the colonoscope. The comparative analysis showed that the 4mm endoscope was most efficient and could be adapted to sinuscopy in cattle.

scholarly journals Computer Modelling for Better Diagnosis and Therapy of Patients by Cardiac Resynchronisation Therapy

2015 ◽  
Vol 4 (1) ◽  
pp. 62 ◽  
Author(s):  
Marieke Pluijmert ◽  
Joost Lumens ◽  
Mark Potse ◽  
Tammo Delhaas ◽  
Angelo Auricchio ◽  
...  
Keyword(s):  
Computer Modelling ◽  
Cardiac Resynchronisation Therapy ◽  
Computer Models ◽  
Cardiac Cells ◽  
Biomedical Science ◽  
Patient Specific ◽  
Cardiac Resynchronisation ◽  
Mechanical Models ◽  
Resynchronisation Therapy ◽  
The Individual

Mathematical or computer models have become increasingly popular in biomedical science. Although they are a simplification of reality, computer models are able to link a multitude of processes to each other. In the fields of cardiac physiology and cardiology, models can be used to describe the combined activity of all ion channels (electrical models) or contraction-related processes (mechanical models) in potentially millions of cardiac cells. Electromechanical models go one step further by coupling electrical and mechanical processes and incorporating mechano-electrical feedback. The field of cardiac computer modelling is making rapid progress due to advances in research and the ever-increasing calculation power of computers. Computer models have helped to provide better understanding of disease mechanisms and treatment. The ultimate goal will be to create patient-specific models using diagnostic measurements from the individual patient. This paper gives a brief overview of computer models in the field of cardiology and mentions some scientific achievements and clinical applications, especially in relation to cardiac resynchronisation therapy (CRT).

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