scholarly journals Software tools for automatic generation of finite element mesh and application of biomechanical calculation in medicine

2008 ◽  
Vol 62 (3) ◽  
pp. 177-180 ◽  
Author(s):  
Danko Milasinovic ◽  
Milos Ivanovic ◽  
Nenad Filipovic ◽  
Milos Kojic
Keyword(s):  
3D Model ◽  
Multislice Ct ◽  
Automatic Generation ◽  
Software Tools ◽  
Ct Scanner ◽  
Element Mesh ◽  
Raw Data ◽  
Clinical Center ◽  
Flow Through ◽  
The University

Cardiovascular diseases are common and a special difficulty in their curing is diagnostics. Modern medical instruments can provide data that is much more adequate for computer modeling. Computer simulations of blood flow through the cardiovascular organs give powerful advantages to scientists today. The motivation for this work is raw data that our Center recently received from the University Clinical center in Heidelberg from a multislice CT scanner. In this work raw data from CT scanner was used for creating a 3D model of the aorta. In this process we used Gmsh, TetGen (Hang Si) as well as our own software tools, and the result was the 8-node (brick) mesh on which the calculation was run. The results obtained were very satisfactory so...

scholarly journals Software tools for manipulating fe mesh, virtual surgery and post-processing

2009 ◽  
Vol 63 (3) ◽  
pp. 275-279 ◽  
Author(s):  
Danko Milasinovic ◽  
Vladimir Cvjetkovic ◽  
Dittmar Böckler ◽  
Tengg-Kobligk von ◽  
Nenad Filipovic
Keyword(s):  
Fluid Flow ◽  
Main Idea ◽  
Software Tools ◽  
Tetrahedral Mesh ◽  
Virtual Surgery ◽  
Ct Scanner ◽  
Post Processing ◽  
Tetrahedral Elements ◽  
Clinical Center ◽  
Flow Through

This paper describes a set of software tools which we developed for the calculation of fluid flow through cardiovascular organs. Our tools work with medical data from a CT scanner, but could be used with any other 3D input data. For meshing we used a Tetgen tetrahedral mesh generator, as well as a mesh re-generator that we have developed for conversion of tetrahedral elements into bricks. After adequate meshing we used our PAKF solver for calculation of fluid flow. For human-friendly presentation of results we developed a set of post-processing software tools. With modification of 2D mesh (boundary of cardiovascular organ) it is possible to do virtual surgery, so in a case of an aorta with aneurism, which we had received from University Clinical center in Heidelberg from a multi-slice 64-CT scanner, we removed the aneurism and ran calculations on both geometrical models afterwards. The main idea of this methodology is creating a system that could be used in clinics.

Effective doses in subjects undergoing computed tomography cardiac imaging with the 256-multislice CT scanner

2008 ◽  
Vol 65 (3) ◽  
pp. 442-448 ◽  
Author(s):  
Shinichiro Mori ◽  
Kanae Nishizawa ◽  
Chisato Kondo ◽  
Mari Ohno ◽  
Keiichi Akahane ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cardiac Imaging ◽  
Multislice Ct ◽  
Ct Scanner ◽  
Effective Doses

scholarly journals Prelabour Rupture of Membranes: Mode of Delivery and Outcome

2015 ◽  
Vol 3 (2) ◽  
pp. 237-240 ◽  
Author(s):  
Vlora Ademi Ibishi ◽  
Rozalinda Dusan Isjanovska
Keyword(s):  
Cesarean Section ◽  
Mode Of Delivery ◽  
Neonatal Morbidity ◽  
Fetal Distress ◽  
Maternal Complications ◽  
Cephalopelvic Disproportion ◽  
Cesarean Section Delivery ◽  
Clinical Center ◽  
Failed Induction ◽  
The University

BACKGROUND: Pre-labour Rupture of Membranes (PROM) is an important cause of maternal and fetal morbidity and increased rate of cesarean section delivery. AIM: The aim of this study is to investigate the clinical characteristics, PROM-delivery interval, mode of delivery, and early maternal neonatal outcome among pregnant patients presenting with pre-labour rupture of membranes.MATERIAL AND METHODS: This prospective case control study is implemented at the Obstetric and Gynecology Clinic of the University Clinical Center of Kosovo. The study included 100 pregnant patients presenting with prelabour rupture of membranes of which 63 were primigravida and 37 patients were multigravida.RESULTS: The incidence of cesarean section in this study is 28 % and the most common indications for cesarean delivery were fetal distress, malpresentation, cephalopelvic disproportion, and failed induction. The most common maternal complications in this study are chorioamnionitis, retained placenta and postpartum hemorrhage. Neonatal infectious morbidity was present in 16 % of cases.CONCLUSION: PROM is a significant issue for obstetricians and an important cause of maternal and neonatal morbidity and increased rate of cesarean section delivery.

scholarly journals Triage at a non-covid hospital during the COVID-19 pandemic

2021 ◽  
Vol 2 (3) ◽  
pp. 220-227
Author(s):  
Marina Đikić ◽  
Dušica Gujaničić ◽  
Ivana Milićević-Nešić ◽  
Marko Ercegovac ◽  
Slobodan Dželebdžić ◽  
...  
Keyword(s):  
Emergency Medicine ◽  
Critically Ill ◽  
Main Task ◽  
Emergency Center ◽  
Clinical Center ◽  
Epidemiological Risk ◽  
Body Temperature Measurement ◽  
Spread Of Infection ◽  
The University ◽  
Taking Care

At the time of the COVID-19 pandemic, the Emergency Center of the University Clinical Center of Serbia (EC-UCCS), although a non-covid hospital, had to adapt to taking care of a large number of critically ill and, at the same time, potentially contagious patients. In this paper, we present the ways that the EC-UCCS has adjusted to the conditions of the pandemic, where no precise protocols had previously been established for acting in these types of situations. In March 2019, the Admissions Triage Facility of Emergency Medicine (ATFEM) was established. The main task of this facility was to separate patients with epidemiological risk (ER) from patients without risk and to carry out their further isolated care. ER assessment involves completing an epidemiological questionnaire, a targeted brief history, body temperature measurement, and assessment of the patient's respiratory status. The complete triage process, initial diagnosis, and treatment of patients with ER is the task and responsibility of emergency medicine specialists. Between March 15, 2020 and March 15, 2021, about 155,000 patients were examined in triage, of whom 9,519 had ER and were taken care of in the ATFEM. This triage method minimizes the spread of infection while taking care of all critically ill patients, regardless of ER. However, both patients with low and high risk of COVID-19, were all admitted to the same facility, due to the shortage of available space. Also, triage relates only to "covid triage" and not to triage according to the degree of urgency of the patients, which is the primary task of every modern emergency center.

scholarly journals “TORINO 1911” PROJECT: A CONTRIBUTION OF A SLAM-BASED SURVEY TO EXTENSIVE 3D HERITAGE MODELING

2018 ◽  
Vol XLII-2 ◽  
pp. 225-234 ◽  
Author(s):  
F. Chiabrando ◽  
C. Della Coletta ◽  
G. Sammartano ◽  
A. Spanò ◽  
A. Spreafico
Keyword(s):  
3D Model ◽  
Handheld Devices ◽  
Complex Environments ◽  
Existing Structures ◽  
Multi Scale ◽  
Rapid Mapping ◽  
Digital Documentation ◽  
Immersive Visualization ◽  
Interactive Navigation ◽  
The University

In the framework of the digital documentation of complex environments the advanced Geomatics researches offers integrated solution and multi-sensor strategies for the 3D accurate reconstruction of stratified structures and articulated volumes in the heritage domain. The use of handheld devices for rapid mapping, both image- and range-based, can help the production of suitable easy-to use and easy-navigable 3D model for documentation projects. These types of reality-based modelling could support, with their tailored integrated geometric and radiometric aspects, valorisation and communication projects including virtual reconstructions, interactive navigation settings, immersive reality for dissemination purposes and evoking past places and atmospheres. The aim of this research is localized within the “Torino 1911” project, led by the University of San Diego (California) in cooperation with the PoliTo. The entire project is conceived for multi-scale reconstruction of the real and no longer existing structures in the whole park space of more than 400,000&amp;thinsp;m<sup>2</sup>, for a virtual and immersive visualization of the Turin 1911 International “Fabulous Exposition” event, settled in the Valentino Park. Particularly, in the presented research, a 3D metric documentation workflow is proposed and validated in order to integrate the potentialities of LiDAR mapping by handheld SLAM-based device, the ZEB REVO Real Time instrument by GeoSLAM (2017 release), instead of TLS consolidated systems. Starting from these kind of models, the crucial aspects of the trajectories performances in the 3D reconstruction and the radiometric content from imaging approaches are considered, specifically by means of compared use of common DSLR cameras and portable sensors.

scholarly journals Analysis of epidemiological characteristics and surgical treatment of patients with pressure ulcer

2021 ◽  
pp. 93-93
Author(s):  
Dragana Petrovic-Popovic ◽  
Milan Stojicic ◽  
Maja Nikolic-Zivanovic
Keyword(s):  
Surgical Treatment ◽  
Pressure Ulcer ◽  
Traffic Accidents ◽  
Pressure Ulcers ◽  
Stage Iv ◽  
Clinical Center ◽  
Bony Prominence ◽  
The University ◽  
Epidemiological Characteristics ◽  
Reconstructive Methods

Introduction/Objective. A pressure ulcer is a localized injury to the skin and/or underlying tissue, usually over a bony prominence. It appears as a result of pressure or combination of pressure and shear. Pressure ulcers can be identified within a wide variety of patient subpopulations and a major role in their treatment plays epidemiological and etiological aspects. Methods. A retrospective study of data analysis included 72 patients with pressure ulcers that were hospitalized and surgically treated during a five-year period at the Clinic for Burns, Plastic and Reconstructive Surgery of the University Clinical Center of Serbia in Belgrade. Main data features used in the analysis were: gender, age, principal diseases, comorbidities and biochemical indicators of malnutrition. The patients' data was obtained from the existing patients? records. Additionally, the study analyzed the method of treating pressure ulcers, types of reconstructive methods in surgical treatment, as well as the incidence rate of partial osteotomy. Results. A total of 72 patients with pressure ulcers were included into this study with 54.7 ? 16.1 mean age. Three times more patients injured in traffic accidents were male (75% vs. 25%), while the most of the patients with multiple sclerosis were female (85.7%). More than 95% of patients who had pressure ulcers of III or IV stage were treated surgically with a reconstructive method of transposition or rotation myocutaneous flap. The patient with pressure ulcer of stage IV was usually treated with partial osteotomy. Conclusion. A surgical reconstructive treatment with fasciocutaneous and myocutanaeous flaps represents a gold standard for treating patients with pressure ulcers. These procedures provide reconstruction with adequate flap coverage and obliteration of dead space with well-vascularized tissue but with necessity of further implementation of antidecubitus measures.

scholarly journals Pleural Drainage and its Role in Management of the Isolated Penetrating Chest Injuries During the War Time in Sarajevo, 1992.-1995.

2007 ◽  
Vol 7 (2) ◽  
pp. 152-156
Author(s):  
Ademir Hadžismajlović ◽  
Alen Pilav
Keyword(s):  
Chest Tube ◽  
Massive Bleeding ◽  
Hospital Treatment ◽  
Pleural Drainage ◽  
Average Hospital ◽  
Chest Injuries ◽  
Results Of Treatment ◽  
Clinical Center ◽  
Great Vessels ◽  
The University

Penetrating chest injuries are the most frequent causes of serious demage and death in wounded indivisuals. In reports from the last wars where wounds caused by high velocity projectiles predominated, thoracotomies were perfomed in about 15% of the wounded individuals, mostly encompassing injuries of the heart and great vessels, accomanied by massive bleeding that could not be resolved by chest tube insertion. This retrospective analysis was performed on the medical records of 477 patients tretaed for isolated penetrating chest injuries in Department of Thoracic Surgery Clinical Center of the University in Sarajevo between april 1992 - june 1995. We analised the ways of their menagement with special view on pleural drainage, indication for this method and results of treatment. 398 (83,4%) wounded individuals have been treated with pleural tube inserting as definitive mesaure and for the urgent thoracotomy there were 79 (16,6%) patients left. Average hospital treatment in wounded drained patients was 7,68 days. With shrapnels there were 357 (74,84%) wounded individuals, and with bullet 120 (25,16%) wounded individuals. The complications of plaural tube inserting were - empyema in 34 (7,13%) patients and there were no other complications. Chest tube inserting as definitive mesaure was used in 398 (83,44%) patients. Chest tube inserting as preoperative measure (urgent thoracotomy) was used in 79 (16,56%) patients. There were 460 (96,44%) healed patients. Death occurred in 17 (3,56%) patients.

scholarly journals HIGH RESOLUTION 3D ACQUISITION AND MODELLING IN CULTURAL HERITAGE KNOWLEDGE AND RESTORATION PROJECTS: THE SURVEY OF THE FOUNTAIN OF NEPTUNE IN BOLOGNA

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 573-578 ◽  
Author(s):  
V. A. Girelli ◽  
M. A. Tini ◽  
M. Dellapasqua ◽  
G. Bitelli
Keyword(s):  
Information System ◽  
Laser Scanning ◽  
3D Model ◽  
Ad Hoc ◽  
Complex Object ◽  
Visual Computing ◽  
Precision Level ◽  
3D Acquisition ◽  
The University ◽  
User Friendly

<p><strong>Abstract.</strong> In 2016, the Municipality of Bologna (Italy) has undertaken the restoration of one of the symbols of the entire city, the Fountain of Neptune, in evident state of degradation. The works have touched upon all the aspects of this complex object and the project has seen involved the Municipality and the University of Bologna, the Istituto Superiore per la Conservazione e il Restauro (ISCR) (Rome) and the Visual Computing Lab of the CNR – ISTI (Pisa), in a modern and highly multi-disciplinary approach.</p><p>One of the key elements of the project was made up by the creation of an information system ad hoc developed to permit, in an innovative, efficient and user-friendly way, the collection, sharing, management and analysis of all the information and data related to diagnostics and restoration actions. The base of the information system is a very detailed 3D model of the monument, realized by means of the most modern techniques for objects 3D modelling (laser scanning, digital photogrammetry and 3D scanning) integrated together with the aim to obtain a photo-textured 3D model characterized by a sub-millimetre precision level in the geometric description and a high perceptive fidelity of colour reproduction.</p><p>The surveying activities and data processing, performed by the DICAM Geomatics group of the University of Bologna (with the collaboration of the MCM Company of Rome), are described in the paper, with considerations on the problems encountered and the procedures and solutions adopted. The information system has been developed by CNR-ISTI.</p>

scholarly journals Optimized Control of X-ray Exposure and Image Noise Using a Particular Multislice CT Scanner

2008 ◽  
Vol 64 (8) ◽  
pp. 955-959 ◽  
Author(s):  
Shuji Yamamoto ◽  
Yoshihiro Koyama ◽  
Masahiro Suzuki ◽  
Hirofumi Nagasawa ◽  
Ryutaro Kakinuma ◽  
...  
Keyword(s):  
Multislice Ct ◽  
Image Noise ◽  
Ct Scanner ◽  
X Ray
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