scholarly journals The use of 3D modeling to determine the parameters of surgical intervention for pulmonary tuberculosis

2020 ◽  
Vol 98 (6) ◽  
pp. 47-51
Author(s):  
E. A. Borodulinа ◽  
A. V. Kolsаnov ◽  
P. V. Rogozhkin ◽  
A. A. Mаnukyan
Keyword(s):  
Computed Tomography ◽  
Pulmonary Tuberculosis ◽  
3D Modeling ◽  
3D Model ◽  
Surgical Intervention ◽  
Bronchial Tree ◽  
Surgical Interventions ◽  
Color Mapping ◽  
Vascular Structures ◽  
Tomography Data

The clinical experience demonstrates the importance of 3D modeling when planning surgical intervention in patients with pulmonary tuberculosis. The 3D model was built up based computed tomography data using Avtoplan software with plug-ins for segmentation of the lung, pathological foci, vascular structures, and bronchial tree. The data obtained during 3D modeling allowed us to plan surgery and the data were fully confirmed during the operation. The 3D model with color mapping reveals syntopy, which is extremely difficult to determine using standard computed tomography and allows the wider use of minimally invasive endoscopic surgical interventions.

scholarly journals The braincase of Bissektipelta archibaldi — new insights into endocranial osteology, vasculature, and paleoneurobiology of ankylosaurian dinosaurs

2020 ◽  
Vol 65 (2) ◽  
Author(s):  
Ivan Kuzmin ◽  
Ivan Petrov ◽  
Alexander Averianov ◽  
Elizaveta Boitsova ◽  
Pavel Skutschas ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Phylogenetic Analysis ◽  
Temperature Control ◽  
Late Cretaceous ◽  
3D Modeling ◽  
3D Model ◽  
Rare Condition ◽  
Physiological Mechanisms ◽  
Valid Taxon ◽  
First Time

We describe in detail three braincases of the ankylosaur Bissektipelta archibaldi from the Late Cretaceous (Turonian) of Uzbekistan with the aid of computed tomography, segmentation, and 3D modeling. Bissektipelta archibaldi is confirmed as a valid taxon and attributed to Ankylosaurinae based on the results of a phylogenetic analysis. The topographic relationships between the elements forming the braincase are determined using a newly referred specimen with preserved sutures, which is an exceedingly rare condition for ankylosaurs. The mesethmoid appears to be a separate ossification in the newly referred specimen ZIN PH 281/16. We revise and discuss features of the neurocranial osteology in Ankylosauria and propose new diagnostic characters for a number of its subclades. We present a 3D model of the braincase vasculature of Bissektipelta and comment on vascular patterns of armored dinosaurs. A complex vascular network piercing the skull roof and the wall of the braincase is reported for ankylosaurs for the first time. We imply the presence of a lepidosaur-like dorsal head vein and the venous parietal sinus in the adductor cavity of Bissektipelta. We suggest that the presence of the dorsal head vein in dinosaurs is a plesiomorphic diapsid trait, and extant archosaur groups independently lost the vessel. A study of two complete endocranial casts of Bissektipelta allowed us to compare endocranial anatomy within Ankylosauria and infer an extremely developed sense of smell, a keen sense of hearing at lower frequencies (100–3000 Hz), and the presence of physiological mechanisms for precise temperature control of neurosensory tissues at least in derived ankylosaurids.

Radiological imaging in treatment planning and monitoring for patients with destructive pulmonary tuberculosis and the use of valvular bronchial blocking

MedAlliance ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 73-79
Keyword(s):  
Computed Tomography ◽  
Pulmonary Tuberculosis ◽  
Pleural Empyema ◽  
Clinical Situation ◽  
Diagnostic Techniques ◽  
Bronchial Tree ◽  
Planning Stage ◽  
Planning And Control ◽  
Valve Placement ◽  
And Control

In the Russian Federation, most cases of valvular bronchial blocking are associated with the treatment of destructive pulmonary tuberculosis. Bronchial blocking is indicated when there are cavities in various forms of pulmonary tu-berculosis that do not close for long (4 months or more). Bronchial blocking in these cases is meant to close cavi-ties, and bronchopleural fistulas, eliminate bleeding and spontaneous pneumothorax, and treat pleural empyema. Radiological diagnostic techniques are key elements in the planning and control of valvular bronchial blocking. At the planning stage, indications and contraindications for valve placement are assessed, as well as anatomical features that can predict ineffectiveness of the interven-tion, including, as the most important ones, signs of col-lateral ventilation. The most informative method of radio-logical imaging at this stage is computed tomography, which allows a detailed assessment of changes in the lung tissue of the zone of interest, including its surroun-ding, bronchial tree and pleura. When monitoring treat-Рис. 1. Эндобронхиальные клапаны российского производства [14]ment, depending on the clinical situation, it is possible to use both classical X-ray examination and computed tomo graphy. The article presents the tactics of radiologi-cal ima ging methods' application at the stage of selection and control of treatment for patients with destructive pul-monary tuberculosis. Various changes in the target lobe of the lungs after bronchial blocking are shown. Valvular bronchial blocking is an effective addition to the complex treatment of destructive pulmonary tuberculosis, includ-ing its complications, and contributes to the reduction of bacterial shedding. Computed tomography increases the efficiency of valvular bronchial blocking results' forecast, and also is an important monitoring technique after the valve placement

scholarly journals COMPUTED TOMOGRAPHY AS A COMPONENT OF PREOPERATIVE PLANNING FOR METAL TRANSITIONAL SPINE FIXATION IN THE CORRECTION OF SCOLIOTIC DEFORMITIES BY HYBRID CONSTRUCTS

2018 ◽  
Vol 99 (3) ◽  
pp. 139-146
Author(s):  
I. A. Norkin ◽  
S. V. Likhachev ◽  
V. V. Zaretskov ◽  
V. B. Arsenievich ◽  
A. E. Shul’ga ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Idiopathic Scoliosis ◽  
Preoperative Planning ◽  
Surgical Intervention ◽  
Type I ◽  
Surgical Interventions ◽  
Intervention Planning ◽  
Ct Data ◽  
Personalized Approach ◽  
Spine Fixation

Objective:to assess whether computed tomography (CT) data can  be used for metal transitional spine fixation in patients with thoracic  and thoracolumbar scoliosis at the stage of surgical intervention planning.Material and methods.Thirty-nine patients with grades 3 and 4  (according to V.D. Chaklin) or type I–III (according to the  classification proposed by L. Lenke) thoracic and thoracolumbar idiopathic scoliosis were examined. All the patients  underwent a comprehensive radiographic and CT examinations. The  radiomorphometric features of the spine were used to plan surgical interventions.Results.The protocol was clarified for preoperative scoliosis examination using CT data on cervicothoracic and  thoracolumbar vertebrae. A personalized approach to planning an  operation on the basis of CT examination permits one to eliminate  destabilization of the supporting elements of the corrective system  at the most. Reducing the risk of postoperative losses of correction  contributes to the use of multi-rod constructs.Conclusion.CT that enables a comprehensive assessment of existing pathology and clarification of the nature of impending surgery should be carried out in patients with thoracic  and thoracolumbar idiopathic scoliosis at the stage of preoperative  planning for metal transitional spine fixation.

Determination of the Activity of Pulmonary Tuberculosis: the Utility of High-Resolution Computed Tomography

2000 ◽  
Vol 42 (5) ◽  
pp. 757
Author(s):  
Myung Hee Chung ◽  
Hae Giu Lee ◽  
Won Jong Yu ◽  
Hong Jun Chung ◽  
Bo Sung Yang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Pulmonary Tuberculosis ◽  
High Resolution Computed Tomography

HOSPITAL INFECTION IN SURGICAL DEPARTMENTS AT HUE UNIVERSITY HOSPITAL IN 2015

2016 ◽  
pp. 39-43
Author(s):  
Dinh Binh Tran ◽  
Dinh Tan Tran
Keyword(s):  
Surgical Site Infection ◽  
Surgical Intervention ◽  
University Hospital ◽  
Hospital Infections ◽  
Site Infection ◽  
Cross Sectional ◽  
Surgical Interventions ◽  
Hospital Acquired Infections ◽  
Tract Infections ◽  
Hospital Acquired

Objective: To study nosocomial infections and identify the main agents causing hospital infections at Hue University Hospital. Subjects and Methods: A cross-sectional descriptive study of 385 patients with surgical interventions. Results: The prevalence of hospital infections was 5.2%, surgical site infection was the most common (60%), followed by skin and soft tissue infections (35%), urinary tract infections (5%). Surgical site infection (11.6%) in dirty surgery. There were 3 bacterial pathogens isolated, including Staphylococcus aureus (50%), Pseudomonas aeruginosa and Enterococcusspp (25%). Conclusion: Surgical site infection was high in hospital-acquired infections. Key words: hospital infections, surgical intervention, surgical site infection, bacteria

Do People Trust in Robot-Assisted Surgery? Evidence from Europe (Preprint)

2020 ◽  
Author(s):  
Joan Torrent-Sellens ◽  
Ana Jiménez-Zarco ◽  
Francesc Saigí-Rubió
Keyword(s):  
Technology Acceptance ◽  
Surgical Intervention ◽  
Negative Relationship ◽  
Predictor Variable ◽  
Major Change ◽  
Ease Of Use ◽  
The European Union ◽  
Robot Assisted ◽  
Surgical Interventions ◽  
Robot Assisted Surgery

BACKGROUND Increasingly intelligent and autonomous robots are destined to have a huge impact on our society. Their adoption, however, represents a major change to the healthcare sector’s traditional practices, which, in turn, poses certain challenges. To what extent is it possible to foresee a near-future scenario in which minor routine surgery is directed by robots? And what are the patients’ or general public’s perceptions of having surgical procedures performed on them by robots, be it totally or partially? A patient’s trust in robots and AI may facilitate the spread and use of such technologies. OBJECTIVE The goal of our study was to establish the factors that influence how people feel about having a medical operation performed on them by a robot. METHODS We used data from a 2017 Flash Eurobarometer (number 460) of European Commission with 27,901 citizens aged 15 years and over in the 28 countries of the European Union. The research designs and tests a technology acceptance model (TAM). Logistic regression (odds ratios, OR) to model the predictors of trust in robot-assisted surgery was calculated through motivational factors, robots using experience and sociodemographic independent variables. RESULTS The negative relationship between most of the predictors of ease of use, expected benefits and attitude towards robots, and confidence in robot-assisted surgery was contrasted. The only non-sociodemographic predictor variable that has a positive relationship with trust in robots participating in a surgical intervention is previous experience in the use of robots. In this context, we analyze the confidence predictors for three different levels of robot use experience (zero use, average use, and high use). The results obtained indicate that, as the experience of using robots increases, the predictive coefficients related to information, attitude and perception of robots become more negative. Research results also determined that variables of a sociodemographic nature played an important predictive role. It was confirmed that the effect of experience on trust in robots for surgical interventions was greater among men, people between 40 and 54 years old, and those with higher educational levels. CONCLUSIONS Despite the considerable benefits for the patient that the use of robots can bring in a surgical intervention, the results obtained show that trust in robots goes beyond rational decision-making. By contrasting the reasons that generate trust and mistrust in robots, especially by highlighting the experience of use as a key element, the research makes a new contribution to the state of the art and draws practical implications of the use of robots for health policy and practice.

scholarly journals Three-dimensional ultrasound for knee osteophyte depiction: a comparative study to computed tomography

2021 ◽  
Author(s):  
Valeria Vendries ◽  
Tamas Ungi ◽  
Jordan Harry ◽  
Manuela Kunz ◽  
Jana Podlipská ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Automatic Segmentation ◽  
Three Dimensional ◽  
3D Ultrasound ◽  
Surgical Interventions ◽  
Structured Light Scanner ◽  
Joint Surfaces ◽  
Operative Planning ◽  
Rms Error ◽  
Tissue Characteristics

Abstract Purpose Osteophytes are common radiographic markers of osteoarthritis. However, they are not accurately depicted using conventional imaging, thus hampering surgical interventions that rely on pre-operative images. Studies have shown that ultrasound (US) is promising at detecting osteophytes and monitoring the progression of osteoarthritis. Furthermore, three-dimensional (3D) ultrasound reconstructions may offer a means to quantify osteophytes. The purpose of this study was to compare the accuracy of osteophyte depiction in the knee joint between 3D US and conventional computed tomography (CT). Methods Eleven human cadaveric knees were pre-screened for the presence of osteophytes. Three osteoarthritic knees were selected, and then, 3D US and CT images were obtained, segmented, and digitally reconstructed in 3D. After dissection, high-resolution structured light scanner (SLS) images of the joint surfaces were obtained. Surface matching and root mean square (RMS) error analyses of surface distances were performed to assess the accuracy of each modality in capturing osteophytes. The RMS errors were compared between 3D US, CT and SLS models. Results Average RMS error comparisons for 3D US versus SLS and CT versus SLS models were 0.87 mm ± 0.33 mm (average ± standard deviation) and 0.95 mm ± 0.32 mm, respectively. No statistical difference was found between 3D US and CT. Comparative observations of imaging modalities suggested that 3D US better depicted osteophytes with cartilage and fibrocartilage tissue characteristics compared to CT. Conclusion Using 3D US can improve the depiction of osteophytes with a cartilaginous portion compared to CT. It can also provide useful information about the presence and extent of osteophytes. Whilst algorithm improvements for automatic segmentation and registration of US are needed to provide a more robust investigation of osteophyte depiction accuracy, this investigation puts forward the potential application for 3D US in routine diagnostic evaluations and pre-operative planning of osteoarthritis.

scholarly journals The Long-Term Follow-Up of Patients with Cystine Stones: A Single-Center Experience for 13 Years

2021 ◽  
Vol 10 (7) ◽  
pp. 1336
Author(s):  
Toshifumi Takahashi ◽  
Shinya Somiya ◽  
Katsuhiro Ito ◽  
Toru Kanno ◽  
Yoshihito Higashi ◽  
...  
Keyword(s):  
Surgical Intervention ◽  
Median Number ◽  
Small Sample ◽  
Age At Diagnosis ◽  
Surgical Interventions ◽  
Significant Difference ◽  
Long Term Follow Up ◽  
Cystine Stones

Introduction: Cystine stone development is relatively uncommon among patients with urolithiasis, and most studies have reported only on small sample sizes and short follow-up periods. We evaluated clinical courses and treatment outcomes of patients with cystine stones with long-term follow-up at our center. Methods: We retrospectively analyzed 22 patients diagnosed with cystine stones between January 1989 and May 2019. Results: The median follow-up was 160 (range 6–340) months, and the median patient age at diagnosis was 46 (range 12–82) years. All patients underwent surgical interventions at the first visit (4 extracorporeal shockwave lithotripsy, 5 ureteroscopy, and 13 percutaneous nephrolithotripsy). The median number of stone events and surgical interventions per year was 0.45 (range 0–2.6) and 0.19 (range 0–1.3) after initial surgical intervention. The median time to stone events and surgical intervention was 2 years and 3.25 years, respectively. There was a significant difference in time to stone events and second surgical intervention when patients were divided at 50 years of age at diagnosis (p = 0.02, 0.04, respectively). Conclusions: Only age at a diagnosis under 50 was significantly associated with recurrent stone events and intervention. Adequate follow-up and treatment are needed to manage patients with cystine stones safely.

scholarly journals Safety and effectiveness of surgical fixation versus non-surgical methods for the treatment of flail chest in adult populations: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Ayobobola A. Apampa ◽  
Ayesha Ali ◽  
Bryar Kadir ◽  
Zubair Ahmed
Keyword(s):  
Systematic Review ◽  
Surgical Intervention ◽  
Meta Analysis ◽  
Adult Population ◽  
Flail Chest ◽  
Surgical Interventions ◽  
Surgical Methods ◽  
Surgical Fixation ◽  
Randomised Controlled ◽  
Pulmonary Status

Abstract Purpose The objective of this systematic review is to compare the safety and efficacy of surgical fixation of rib fractures against non-surgical interventions for the treatment of flail chest in the adult population. Methods A search was performed on the 22nd of July 2020 to identify articles comparing surgical fixation versus clinical management for flail chest in adults, with a description of the outcome parameters (resource utility, mortality, adverse effects of the intervention and adverse progression in pulmonary status). Relevant randomised controlled trials were selected, their risk of bias assessed, and the data then extracted and analysed. Results 157 patients were included from four studies in the analyses, with 79 and 78 patients in the surgical and non-surgical groups, respectively. The pooled effects of all outcomes tended towards favouring surgical intervention. Surgical intervention was associated with lower rates of pneumonia (I2 = 46%, Tau2 = 0.16, p = 0.16), significantly lower rates of tracheostomy (I2 = 76%, Tau2 = 0.67, p = 0.02), and a significantly lower duration of mechanical ventilation (I2 = 88%, Tau2 = 33.7, p < 0.01) in comparison to the non-surgical management methods. Conclusion Our results suggest that surgical intervention reduces the need for tracheostomy, reduces the time spent in the intensive care unit following a traumatic flail chest injury and could reduce the risk of acquiring pneumonia after such an event. There is a need for further well-designed studies with sufficient sample sizes to confirm the results of this study and also detect other possible effects of surgical intervention in the treatment of traumatic flail chest in adults.

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