scholarly journals The capacity of computed tomography in preoperative determination of surgery volume in kidney tumors

2021 ◽  
Vol 61 (3) ◽  
pp. 15-20
Author(s):  
K. T. Shakeyev ◽  
N. A. Kabildina ◽  
A. M. ZHUMAKAEV ◽  
A. S. TOKSAMBAEVA ◽  
S. V. SURMIN ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Treatment Outcome ◽  
Kidney Neoplasms ◽  
Risk Group ◽  
Preoperative Assessment ◽  
Kidney Tumors ◽  
Surgical Interventions ◽  
Medium Risk ◽  
Surgical Tactics

Relevance: Computed tomography allows detecting small tumors. However, surgical tactics cannot always be determined in advance. The purpose of the research was to assess the capacity of computed tomography in the preoperative determination of surgery volume in kidney tumors. Results: 548 patients were treated for kidney neoplasms. They were divided into three groups by computed tomography based on the R.E.N.A.L. scale: with a high risk of complications – 265 patients (48.4%), medium risk – 107 (19.5%), and low risk – 176 (32.1%). All operations were performed in the planned volume depending on the identified risk group for complications and resectability of kidney neoplasms; no changes to the plan of surgical interventions were made. The preoperative assessment of the kidney angioarchitectonics and the tumor relation to the pyelocaliceal system and the organ parenchyma helped determine the surgery volume and the possibility for organ-reserving interventions in 283 patients and radical nephrectomy in 265 patients. Conclusion: Such a highly informative method as computed tomography made allows early detection of small-sized kidney tumors to provide an opportunity for organ-preserving surgery and improved treatment outcome

The capacity of computed tomography in the preoperative determination of surgery volume in kidney tumors

2021 ◽  
Vol 61 (3) ◽  
pp. 15-20
Author(s):  
K. T. Shakeyev ◽  
N. A. Kabildina ◽  
A. M. Zhumakaev ◽  
A. S. Toksambaeva ◽  
S. V. Surmin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Treatment Outcome ◽  
Kidney Neoplasms ◽  
Risk Group ◽  
Preoperative Assessment ◽  
Kidney Tumors ◽  
Surgical Interventions ◽  
Medium Risk ◽  
Surgical Tactics

Relevance: Computed tomography allows detecting small tumors. However, surgical tactics cannot always be determined in advance. The purpose of the research was to assess the capacity of computed tomography in preoperative determination of surgery volume in kidney tumors. Results: 548 patients were treated for kidney neoplasms. They were divided into three groups by computed tomography based on the R.E.N.A.L. scale: with a high risk of complications – 265 patients (48.4%), medium risk – 107 (19.5%), and low risk – 176 (32.1%). All operations were performed in the planned volume depending on the identified risk group for complications and resectability of kidney neoplasms; no changes to the plan of surgical interventions were made. The preoperative assessment of the kidney angioarchitectonics and the tumor relation to the pyelocaliceal system and the organ parenchyma helped determine the surgery volume and the possibility for organ-reserving interventions in 283 patients and radical nephrectomy in 265 patients. Conclusion: Such a highly informative method as computed tomography made allows early detection of small-sized kidney tumors to provide an opportunity for organ-preserving surgery and improved treatment outcome

scholarly journals DETERMINATION OF THERAPEUTIC AND DIAGNOSTIC TACTICS IN PENETRATING SHOOTING AND PUNCH-CUTTING INJURIES OF THE CHEST USING SPIRAL COMPUTER TOMOGRAPHY

2020 ◽  
pp. 47-54
Author(s):  
V. V. Boyko ◽  
P. M. Zamyatin ◽  
S. O. Beresnev ◽  
D. P. Zamyatin ◽  
Yu. V. Bunin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Spiral Computed Tomography ◽  
Spiral Computed ◽  
Invasive Treatment ◽  
Chest Injuries ◽  
Surgical Tactics ◽  
Conservative And Surgical Treatment ◽  
Spiral Computer Tomography

Summary. The aim of the study was to improve the quality of diagnosis of chest injuries and to optimize surgical tactics through the use of spiral computed tomography. Material and research methods. The work is based on prospective analysis of the results of spiral computed tomography of patients with chest injuries for the period from 2014 to 2020. Results and its discussion. The results of SCT make it possible to objectify the choice of surgical tactics and the most rational type of access. The use of SCT has become expedient for chest injuries both before surgery in patients with stable hemodynamics and in the postoperative period to identify early complications. Conclusions. Based on the study, it was concluded that the use of SCT in patients with chest wounds makes it possible to choose rational treatment tactics, optimal access for surgery and drainage area, as well as apply minimally invasive treatment methods. Conducting CT studies in dynamics allows us to assess the effectiveness of conservative and surgical treatment and promptly make adjustments to the treatment.

Determination of a Low Risk Group for Having Metastatic Nodules Not Detected by Computed Tomography Scan in Lung Metastases Surgery

2013 ◽  
Vol 49 (12) ◽  
pp. 518-522
Author(s):  
Jon Zabaleta ◽  
Borja Aguinagalde ◽  
José Miguel Izquierdo ◽  
Mikel Mendoza ◽  
Francisco Basterrechea ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Risk Group ◽  
Lung Metastases ◽  
Low Risk ◽  
Computed Tomography Scan ◽  
Tomography Scan

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

Comparison of SCORE and Reynolds cardiovascular risk assessments in a cohort without cardiovascular disease

2013 ◽  
Vol 154 (43) ◽  
pp. 1709-1712 ◽  
Author(s):  
Csaba Móczár
Keyword(s):  
Cardiovascular Disease ◽  
Risk Assessment ◽  
Cardiovascular Risk ◽  
Screening Program ◽  
Risk Group ◽  
Scoring Systems ◽  
High Risk Group ◽  
Risk Assessments ◽  
Gender And Age ◽  
Medium Risk

Introduction: Cardiovascular risk assessment may help in the identification of symptom-free subjects with high cardiovascular risk. Aim: The author studied the correlation between SCORE and Reynolds risk assessment systems based on data from the cardiovascular risk screening program carried out in subjects without cardiovascular disease. Method: Data obtained from 4462 subjects (1977 men and 2485 women; mean age, 47,4 years) were analysed. The comparison was based on risk categories of the SCORE system. Results: There was a strong correlation between the two scoring systems in the low risk population (under <2% SCORE risk the Spearman rho = 1, p < 0.001). A weak correlation was found in the medium risk group (between 3–4% the Spearman rho = 0.59–0.49, p < 0.001 and between 10–14% the Spearman rho = 0.42, ns.) and a stronger correlation in the high risk group (>15% the Spearmen rho = 0.8, p = 0.017). When correlations were analysed in gender and age categories, the weakest correlation was detected in medium risk women over 40 years of age. In cases when the differences between the two scoring systems were significant, the hsCRP levels were significantly higher (4.1 vs. 5.67 mg/L, p < 0.001). Conclusions: Introduction of hsCRP into cardiovascular risk assessments can refine the risk status of symptom-free subjects, especially among intermediate risk middle-age women (two-step risk assessment). Orv. Hetil., 154 (43), 1709–1712.

The Evaluation of the Role of the Cytokines TNF- alfa and IL 6 in the Production of Hypoalbuminemia in Patients Undergoing Major Surgical Interventions

2018 ◽  
Vol 69 (7) ◽  
pp. 1830-1837
Author(s):  
Cristian Nicolescu ◽  
Alaxendru Pop ◽  
Alin Mihu ◽  
Luminita Pilat ◽  
Ovidiu Bedreag ◽  
...  
Keyword(s):  
Surgical Procedure ◽  
Tnf Alpha ◽  
Phase Reaction ◽  
Statistical Validation ◽  
Necrosis Factor Alpha ◽  
Surgical Interventions ◽  
Plasmatic Level ◽  
Factor Alpha ◽  
Validation Tests

This article presents an observational randomized prospective study done on 65 patients, who underwent major surgical interventions in the field of orthopedic surgery-total hip replacement or general surgery � total colectomy. The level of albuminemia in these cases were determined before the surgical intervention, after 6 hours of the intervention and after 24 h of the intervention. The measurements of the plasmatic concentration of the pro-inflammatory cytokines Tumor Necrosis factor -alpha (TNF-alpha) and interleukin 6 (IL6) were simultaneously done with the determination of the plasmatic levels of albumin. Values of hemoglobin and hematocrit were determined 24 h after the surgical procedure in order to exclude hemodilution, which could lead to a possible drop in the levels of plasmatic albumin. After the collection of the data, the statistical work was done and it consisted of descriptive statistics, correlation and comparison tests as well as statistical validation tests. Obtained results indicate that IL-6 plays a major role comparatively with that of TNF-alfa, regarding the decrease of the plasmatic level of albumin, and due to this, the primordial cause for hypoalbuminemia is an acute hepatic phase reaction. Supplemental permeability of the capillary wall under the action of TNF alpha has a secondary role, but could lead to a faster decrease in plasmatic albumin in the first hours after the surgical procedure.

scholarly journals New Method for Analysis of the Temporomandibular Joint Using Cone Beam Computed Tomography

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3070
Author(s):  
Sebastian Iwaszenko ◽  
Jakub Munk ◽  
Stefan Baron ◽  
Adam Smoliński
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Cross Section ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Section Plane ◽  
New Approach ◽  
Volume Of Interest ◽  
Gap Width

Modern dentistry commonly uses a variety of imaging methods to support diagnosis and treatment. Among them, cone beam computed tomography (CBCT) is particularly useful in presenting head structures, such as the temporomandibular joint (TMJ). The determination of the morphology of the joint is an important part of the diagnosis as well as the monitoring of the treatment results. It can be accomplished by measurement of the TMJ gap width at three selected places, taken at a specific cross-section. This study presents a new approach to these measurements. First, the CBCT images are denoised using curvilinear methods, and the volume of interest is determined. Then, the orientation of the vertical cross-section plane is computed based on segmented axial sections of the TMJ head. Finally, the cross-section plane is used to determine the standardized locations, at which the width of the gap between condyle and fossa is measured. The elaborated method was tested on selected TMJ CBCT scans with satisfactory results. The proposed solution lays the basis for the development of an autonomous method of TMJ index identification.

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.

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