Comment identifier les benzocycloheptènes ?

L'identification se fait par des techniques de spectroscopie et de chromatographie.

Quels tests sont utilisés pour les benzocycloheptènes ?

Des tests de toxicité et d'efficacité sont réalisés en laboratoire.

Les benzocycloheptènes sont-ils détectables dans le sang ?

Oui, ils peuvent être détectés par des analyses spécifiques dans des échantillons biologiques.

Y a-t-il des marqueurs spécifiques pour ces composés ?

Des marqueurs biologiques peuvent indiquer l'exposition à ces composés.

Peut-on utiliser l'imagerie pour les benzocycloheptènes ?

L'imagerie moléculaire peut aider à visualiser leur distribution dans les tissus.

Quels sont les effets secondaires des benzocycloheptènes ?

Ils peuvent provoquer des nausées, des vertiges ou des réactions allergiques.

Les benzocycloheptènes causent-ils des douleurs ?

Des douleurs peuvent survenir en cas de toxicité ou d'allergie.

Y a-t-il des symptômes neurologiques associés ?

Oui, des symptômes comme des maux de tête ou des troubles de la coordination peuvent apparaître.

Peut-on observer des symptômes cutanés ?

Des éruptions cutanées peuvent survenir en cas de réaction allergique.

Les benzocycloheptènes affectent-ils le système respiratoire ?

Une exposition excessive peut entraîner des irritations respiratoires.

Comment prévenir l'exposition aux benzocycloheptènes ?

Utiliser des équipements de protection et suivre les protocoles de sécurité en laboratoire.

Y a-t-il des formations pour manipuler ces composés ?

Oui, des formations spécifiques sont souvent requises pour les chercheurs.

Quels sont les risques en milieu industriel ?

Les travailleurs peuvent être exposés à des niveaux élevés sans protection adéquate.

Des réglementations existent-elles pour leur usage ?

Oui, des réglementations strictes encadrent leur utilisation en laboratoire et en industrie.

Comment évaluer les risques d'exposition ?

Des évaluations de risque doivent être effectuées régulièrement dans les environnements de travail.

Comment traiter une intoxication aux benzocycloheptènes ?

Le traitement inclut l'élimination de l'exposition et des soins symptomatiques.

Y a-t-il des antidotes pour ces composés ?

Actuellement, il n'existe pas d'antidote spécifique pour les benzocycloheptènes.

Quels médicaments peuvent aider en cas d'allergie ?

Des antihistaminiques peuvent être utilisés pour traiter les réactions allergiques.

Les benzocycloheptènes nécessitent-ils une hospitalisation ?

Une hospitalisation peut être nécessaire en cas de symptômes graves.

Comment gérer les effets à long terme ?

Un suivi médical régulier est recommandé pour surveiller les effets à long terme.

Quelles complications peuvent survenir avec ces composés ?

Des complications comme des lésions organiques peuvent survenir en cas d'exposition prolongée.

Les benzocycloheptènes peuvent-ils causer des cancers ?

Des études suggèrent un potentiel cancérigène, mais des recherches supplémentaires sont nécessaires.

Y a-t-il des effets sur la reproduction ?

Des effets néfastes sur la reproduction ont été observés dans certaines études animales.

Peut-on développer des allergies à long terme ?

Oui, des sensibilisations peuvent se développer avec une exposition répétée.

Les benzocycloheptènes affectent-ils le système immunitaire ?

Une exposition prolongée peut altérer la fonction immunitaire, augmentant les infections.

Qui est le plus à risque d'exposition ?

Les travailleurs en laboratoire et en industrie chimique sont les plus exposés.

L'âge influence-t-il la sensibilité ?

Oui, les jeunes et les personnes âgées peuvent être plus sensibles aux effets toxiques.

Y a-t-il des prédispositions génétiques ?

Certaines prédispositions génétiques peuvent augmenter la sensibilité aux toxines.

Les antécédents médicaux jouent-ils un rôle ?

Oui, des antécédents d'allergies ou de maladies respiratoires augmentent le risque.

L'environnement de travail influence-t-il le risque ?

Oui, un environnement de travail mal ventilé augmente le risque d'exposition.

Benzocycloheptènes - Informations médicales vérifiées

Artificial intelligence system for automated landmark localization and analysis of cephalometry.

01 Jan 2023

DOI: 10.1259/dmfr.20220081 PMID: 36279185

Cephalometric analysis is essential for diagnosis, treatment planning and outcome assessment of orthodontics and orthognathic surgery. Utilizing artificial intelligence (AI) to achieve automated landm... A robust and clinically applicable AI system was proposed for automatic cephalometric analysis. First, 9870 cephalograms taken by different radiography machines with various malocclusions of patients ... The average landmark prediction error of this system was as low as 0.94 ± 0.74 mm and the system achieved an average classification accuracy of 89.33%.... An automatic cephalometric analysis system based on convolutional neural network was proposed, which can realize automatic landmark location and cephalometric measurements classification. This system ...

Humans Artificial Intelligence Cephalometry Neural Networks, Computer Radiography +1 autres

An MRI-only Three-dimensional Cephalometry Protocol based on the Integrated and Modular Architecture of the Human Head.

06 Nov 2023

DOI: 10.2174/0115734056258953231026094236 PMID: 37936443

Currently, three-dimensional cephalometry measurements are mainly based on cone beam computed tomography (CBCT), which has limitations of ionizing radiation, lack of soft tissue information, and lack ... This study investigated magnetic resonance imaging (MRI)-only based 3D cephalometry measurement based on the integrated and modular characteristics of the human head.... Double U-Net CycleGAN was used for CT image synthesis from MRI. This method enabled the synthesis of a CT-like image from MRI and measurements were made using 3D slicer registration and fusion.... A protocol for generating and optimizing MRI-based synthetic CT was described and found to meet the precision requirements of 3D head measurement using MRI midline positioning methods reported in neur... The reported method provided a new protocol for MRI-only cephalometric analysis of craniofacial growth and development, malformation occurrence, treatment planning, and outcomes....

Cross Sectional Analysis of Eurasian Skull Anatomy for 3D Cephalometry-Normative Data Reveal Four Different Skull Types.

19 Jun 2023

DOI: 10.3390/jpm13061018 PMID: 37374007

The unsolved problem in three-dimensional surgical planning for patients with facial deformity, dysgnathia, or asymmetry is the lack of a normative database of "norm skulls" that can be used as treatm...

Validation of 'total face approach' (TFA) three-dimensional cephalometry for the diagnosis of dentofacial dysmorphisms and correlation with clinical diagnosis.

10 Oct 2024

DOI: 10.1016/j.ijom.2024.10.002 PMID: 39394003

The last decades have witnessed significant improvements in orthognathic surgery, but a true standardization of cephalometric analysis to guide clinical assessment in three-dimensional (3D) virtual pl...

Appraising mandibular prognathism in class III malocclusion following orthognathic surgery: Patient-reported and cephalometry-based outcomes.

06 May 2024

DOI: 10.1016/j.jcms.2024.04.013 PMID: 39034196

Patients with class III malocclusion often exhibit mandibular prognathism and complain of "prognathic appearance". The overall positive effects of orthognathic surgery on facial appearance have been d...

Correlation of Clivus Length and Angle with Chronological Age, Gender, Sagittal Growth Pattern of the Jaws, and Skeletal Maturation Using Lateral Cephalometry.

Sep 2024

DOI: 10.30476/dentjods.2023.98275.2065 PMID: 39371958

Determination of remaining growth potential of patients is the most important factor in orthodontic treatment.... This study aimed to assess the correlation of clivus length and angle with age, gender, sagittal growth pattern of the jaws, and skeletal maturation using lateral cephalometry.... This cross-sectional study was conducted on 390 lateral cephalograms (Vatech, paX-i3D Green, South Korea) of patients aged 6 to 25 years. The patients were assigned to three groups of skeletal class I... Clivus length had a significant correlation with SNA (r= 0.103,... All parameters were greater in males, and increased with age (except Welcher angle). Clivus length and angle had significant correlations with position of both jaws but not with sagittal relationship....

Divergence between CBCT and Optical Scans for Soft Tissue Analysis and Cephalometry in Facial Imaging: A cross-sectional study on healthy adults.

12 Feb 2024

DOI: 10.1016/j.ortho.2024.100845 PMID: 38350255

Facial soft tissue analysis is becoming increasingly emphasized in orthodontic diagnosis and treatment planning. While traditional cephalometry primarily focuses on hard tissues, recent non-invasive i... A cross-sectional study was conducted from January 2020 to May 2023. CBCT and 3D facial scans were obtained simultaneously using a specialized imaging system. Reproducible landmark points were selecte... Comparisons between 10 CBCT-derived and 10 facial scan-based soft tissue representations resulted into 1.8mm mean root median square (RMS). Angular measurements, such as ANB, right gonial angle, and l... Facial soft tissue analysis using either 3D facial scans or CBCT-derived offers similar results for orthodontic diagnosis and treatment planning. These findings support the use of non-invasive diagnos...

Cephalic index and horizontal point of maximum width in children with normal brain development in China.

29 Oct 2024

DOI: 10.1186/s12887-024-05173-4 PMID: 39472870

To identify the normal range and distribution in the cephalic index(CI) and horizontal point of maximum width(H-PMW) of Chinese children with normal brain development.... We retrospectively analyzed Chinese Han children who visited our hospitals between June 2015 and June 2020 because of headache or suspected head injuries. 456 children (257 males, 199 females; aged 0-... The overall mean CI was 86.6 ± 5.2. The mean CI for males was 87.0 ± 5.1, and that for females was 86.0 ± 5.2. The overall mean H-PMW was 53.7 ± 2.4. The mean H-PMW for males was 53.8 ± 2.5, and that ... The CI and H-PMW values of Chinese normal children reported in this study will provide a valuable reference to diagnose cranial deformities, assess the severity of the disease and the effectiveness of...

Humans Male Female Child Child, Preschool +9 autres

Comparative evaluation of commercially available AI-based cephalometric tracing programs.

18 Oct 2024

DOI: 10.1186/s12903-024-05032-9 PMID: 39425100

Compare the accuracy and diagnostic concordance of three commercially available AI-based lateral cephalometric tracing software.... Sixty-three lateral cephalometric radiographs were analyzed using semi-automatic (Dolphin Imaging Systems LLC) and AI-based software programs (WebCeph™, Cephio, and Ceppro DDH Inc.). Intra- and inter-... Human expert reliability was excellent (ICC > 0.9) for most cephalometric parameters. Compared to human experts, significant differences were observed for all three AI-based cephalometric programs (We... All three AI-based tracing programs showed inaccuracies compared to human expert measurements and lacked reliability in measuring key cephalometric parameters. Clinicians should exercise caution when ...

Humans Cephalometry Software Reproducibility of Results Observer Variation +6 autres

Upper airways changes associated with orthodontic molar distalization by Pendulum appliance in adolescent patients: a multicenter retrospective cephalometric study.

16 Oct 2024

DOI: 10.1186/s13005-024-00461-x PMID: 39415201

The purpose of this multicenter retrospective study was to perform a two-dimensional analysis of upper airway changes in adolescent patients following molar distalization with the Pendulum appliance.... The study involved the cephalometric analysis of 88 patients, retrospectively categorized into two groups: skeletal Class II with a dental Class II molar relationship (36 patients, mean age 12.6 ± 1.1... Statistically significant differences were observed in the skeletal measurements that characterized both groups, particularly in ANB and Wits appraisal, at T0 (P < 0.001). After molar distalization, C... The Pendulum appliance does not significantly change the upper airway dimensions in Class I and Class II malocclusion patients, thereby minimizing potential respiratory risks....

Humans Retrospective Studies Female Male Cephalometry +5 autres

Benzocycloheptènes : Questions médicales fréquentes

Termes MeSH sélectionnés :

Questions fréquentes et termes MeSH associés

Diagnostic 5

Symptômes 5

Prévention 5

Traitements 5

Complications 5

Facteurs de risque 5

Contenu validé par Dr Olivier Menir

Sous-catégories

Dibenzocycloheptènes

Amitriptyline

Butaclamol

Cyproheptadine

Maléate de dizocilpine

Nortriptyline

Protriptyline

Loratadine

Auteurs principaux

Jiatian Li

Xiangwen Tan

Huanfeng Jiang

Wanqing Wu

Sources (489 au total)