Tópicos Sugeridos dentro de su búsqueda.
Tópicos Sugeridos dentro de su búsqueda.
https://purl.org/pe-repo/ocde/ford#3.02.14
211
http://purl.org/pe-repo/ocde/ford#3.02.14
78
Radiografía Panorámica
47
https://purl.org/pe-repo/ocde/ford#3.02.12
33
Cefalometría
29
ODS 3: Salud y bienestar. Garantizar una vida sana y promover el bienestar de todos a todas las edades
27
Radiografía panorámica
23
más ...
1
artículo
Publicado 2015
Enlace
Enlace
It is considered the mother's pelvis, as the most important factor of three (mother's pelvis, fetal presentation, uterine contractions), which govern the evolution of the phenomena of birth; hence the radiographic Pelvimetry constitute a clinical assistant value, but is not able to clarify all clinical questions, or tell us exactly the evolution of labor. The major pelvic diameters are studied: conjugated vera, transverse at the superior strait; bi-sciatic and posterior sagittal excavation and bi-sciatic on the lower narrow, being secondly other top narrow diameters used to determine the shape and position of the pelvis in the Caldwell-Moloy classification. In hundred pelvis studied, it has been found that the most frequent vera conjugate (34.5%) is between 11 and 11.5 cm. and bi-sciatic 10 to 10.5 cm. in 41.5%. In the superior strait, 13.5% of the pelvis had vera conjugate between 8.5 t...
2
artículo
Publicado 2015
Enlace
Enlace
It is considered the mother's pelvis, as the most important factor of three (mother's pelvis, fetal presentation, uterine contractions), which govern the evolution of the phenomena of birth; hence the radiographic Pelvimetry constitute a clinical assistant value, but is not able to clarify all clinical questions, or tell us exactly the evolution of labor. The major pelvic diameters are studied: conjugated vera, transverse at the superior strait; bi-sciatic and posterior sagittal excavation and bi-sciatic on the lower narrow, being secondly other top narrow diameters used to determine the shape and position of the pelvis in the Caldwell-Moloy classification. In hundred pelvis studied, it has been found that the most frequent vera conjugate (34.5%) is between 11 and 11.5 cm. and bi-sciatic 10 to 10.5 cm. in 41.5%. In the superior strait, 13.5% of the pelvis had vera conjugate between 8.5 t...
3
artículo
Publicado 2025
Enlace
Enlace
Introducción: Las anomalías dentarias están asociadas con problemas en el desarrollo, lo que afecta estructuras faciales y dentales con potenciales repercusiones funcionales, oclusales y estéticas. La detección temprana mediante radiografías panorámicas es crucial para un tratamiento y manejo adecuado de estas alteraciones. Objetivo: Determinar la prevalencia de anomalías dentarias en radiografías en pacientes atendidos en un centro radiológico durante el 2023. Materiales y métodos: Se realizó un estudio retrospectivo, observacional y descriptivo, en el que se analizó 1500 radiografías panorámicas. Se empleó un método de muestreo aleatorio simple y se evaluaron diversas variables, como tipos y número de anomalías, edad, género y ubicación en los cuadrantes bucales. Se utilizó el programa Romexis Viewer para el análisis de imágenes. Resultados: En la prevalencia de...
4
objeto de conferencia
Publicado 2021
Enlace
Enlace
This work was supported by grant 234-2015-FONDECYT (Master Program) from Cienciactiva of CONCYTEC-PERU and German BMBF research campus MODAL (grant no. 3FO18501). The authors thank CiTeSoft-UNSA for the database access. The authors report no conflicts of interest.
5
artículo
For the study of the radiographic osteology of the Pipa pipe frog, six adult specimens apparently in good health and kept in captivity were used. The MinXray® HF 100 X-ray equipment was used to obtain the radiographic images, analyze the radiographic characteristics and determine the size (length and width) of the head, post-cranial skeleton, shoulder girdle, anterior and posterior limbs. These frogs present the pre-sacral vertebrae I and II fused, and the sacrum fused to the thin urostil. Pipa pipe scapular waist is pseudo-firmisternal. It was possible to identify the bones that make up this region, including the coracoides. The relation between the measures of the tibial-fibula length added to the length of the foot with the corporal length corresponded to 85%.
6
artículo
The application of the method to the study of radiographic vascular systems , by introducing radiopaque contrast substances within its light, has allowed a better understanding of anatomy , physiology, pathology and treatment. This at first was only targeting the venous and arterial systems ( 9) , in which surgical techniques boom reached through this process , aside perhaps lymphatic system due to technical difficulties for study. However, several attempts to try to visualize it, were made by subcutaneous or intraperitoneal introduction of contrast medium unsuccessfully temporarily abandoning this study. The first successes were obtained by Funaoka in 1930 who injected mercury and iodine salts within the lymphatic system ; was followed : Carvalho et al (1931 , 1934) , Toreff and Stoppani (1932 ) , Monville and Ané (1932 ) , Monke (1932 ) , Zolothrekin (1934 ) , Bennett and Shivas (1954...
7
artículo
Publicado 2019
Enlace
Enlace
Objective: To establish the prevalence of changes in the articulation temporomandibular joint (TMJ) and its association with age, sex, and right side or left side, using panoramic radiographs. Materials and Methods: We reviewed a total of 360 (720 condyles) x-rays of both sexes and older than 18 years, grouped in three categories, 18 – 40 years, 41 – 60 years and older than 61 years. Will evaluate bone changes of the condyle of the mandible as a subchondral cyst, flattening, erosion, sclerosis and osteophyte. Results: The prevalence of bone changes of the mandibular condyles was 70,3% being more frequent in the 41-60 years, and in males, finding statistically significant differences. The number of condyles affected was 419 (58.2%). Although both condyles were found affected, for the most part, there were no differences statistically significative on hand. The most common change w...
8
artículo
Publicado 2023
Enlace
Enlace
Objective: This study aims to determine the frequency of mandibular asymmetries using digital panoramic radiographs that display complete teeth. Material and methods: A descriptive, observational, and retrospective cross-sectional study was conducted. The records of all digital panoramic radiographs from patients aged 18 to 59 years, taken at the Dental Image radiographic center during the period 2016-2020, were reviewed. Panoramic radiographs were evaluated for the presence of mandibular asymmetry using the Habets index. Digital radiographic tracing was employed to assess variables including ascending ramus height (C+R), mandibular ramus height (RH), and condylar height (CH). Symmetrical and asymmetrical radiographs were compared. Results: Out of the total sample of 1000 radiographs analyzed, the predominant age group was 34-41 years, constituting 301 radiographs (30.1%). Additionally, ...
9
artículo
Objective: Determine the risk of impaction of maxillary canines in children between 8 and 11 years old in a radiological center in Huancayo according to the Power and Short method. Material and Methods: Basic study of cross-sectional descriptive design. Non-parametric tests, Kruskal-Wallis Kruskal-Wallis to find significant differences between angulation values by age and sex of the patients. between angulation values according to age and sex of the patients; and Friedman to find significant differences to find significant differences between angulation values according to the quadrant involved. quadrant involved. Results: According to gender were that females have a higher unfavorable risk of impaction with 3.9%, regular 15.2 and favorable 35.8%; unfavorable male gender was 0.9%, regular 11.8% and favorable 32.4%; According to age, the proportion of favorable risk was highest in the age...
10
artículo
Publicado 2006
Enlace
Enlace
The microscrews in orthodontia arise like a necessity for a stable anchorage. They are an alternative that appears as a result of the use of dental implants which are gaining popularity due to his versatility and to its therapeutic effectiveness. In this article we made a revision of Literature and presented displayed a case report where a X Rays and surgical technique in order to locate with greater facility and security the place of positioning of the titanium microscrews.
11
artículo
In our institution there is a considerable amount of patients suffering skin carcinomas, for which, the treatment using small fields of high energy electronis a common option of treatment. The dosimetry using ionization chamber in small electron fields of high energy, according with the international protocols of dosimetry, requires of ionization chambers with special characteristics; equipment that our institution does not count; so it is necessary an alternative method to make these measurements. The linear behaviour of the electron films in energies greater than 250 keV; makes the film dosimetry one of the best options to make measurements in small electron fields of high energy; as much by its quality of results, information and low cost. The objective of this work is to provide to the Radiotherapy Department of the National Institute of Neoplasics Diseases a practical method, safe a...
12
artículo
Publicado 2006
Enlace
Enlace
The microscrews in orthodontia arise like a necessity for a stable anchorage. They are an alternative that appears as a result of the use of dental implants which are gaining popularity due to his versatility and to its therapeutic effectiveness. In this article we made a revision of Literature and presented displayed a case report where a X Rays and surgical technique in order to locate with greater facility and security the place of positioning of the titanium microscrews.
13
artículo
Publicado 2025
Enlace
Enlace
Se reporta una paciente canina Fila Brasileiro de 7 meses de edad con displasia de codo en ambos miembros anteriores. En el examen ortopédico presentó claudicación y dolor predominantemente en el miembro izquierdo. Se realizaron estudios radiográficos completos según lineamientos del Grupo internacional de trabajos en el codo (IEWG), identificándose lesiones compatibles con proceso ancóneo no unido, inestabilidad de codo y cambios escleróticos con relación al proceso coronoides medial. Posteriormente se realizó una tomografía computarizada (TC), el cual identificó lesiones quísticas con relación al proceso ancóneo no unido. Asimismo, la TC contribuyó al diagnóstico de la denominada enfermedad del compartimento medial en ambos codos y su relación a grados de osteoartritis.
14
tesis de maestría
We present a method based on a generative model for detection of anomalies such as prosthesis, implants, screws, zippers, and metals in Two-dimensional (2D) radiographs. The generative model is trained following an unsupervised fashion using clinical radiographs as well as simulated data, neither of them containing anomalies. Our approach employs a reconstruction loss and a latent space consistency loss which have the benefit of identifying similarities which are forced to reconstruct X-rays without anomalies. In order to detect images with anomalies, an anomaly score is also computed employing the reconstruction loss and the latent space consistency loss. Additionally, the Frechet distance is introduced as part of the reconstruction loss. These losses are computed between an input X-ray and the one reconstructed by the proposed generative model. Validation was performed using clinical p...
15
artículo
Publicado 2022
Enlace
Enlace
Objective: To evaluate of characteristics of dental transposition in digital panoramic radiographs of pediatric patients. Methods: A transversal, descriptive and retrospective study was carried out with 2386 digital panoramic radiographs of patients who are among 6 and 17, attended at Cayetano Heredia University dental center from 2015 to 2018. Results: The dental transposition frequency was 0.96%, of which 52.17% were female and the complete dental transpositions were 96.55%. According to the localization in the right-upper quadrant represents 51.72% and left-upper quadrant represents 48.28%. The premolar maxillary canines’ transpositions are most usual and represents 82.76%. Conclusions: The dental transposition frequency was low, the complete dental transposition was more common, and they were located on the upper maxilla with a predilection on the right side. The canine tooth and...
16
artículo
Publicado 2022
Enlace
Enlace
Objective: To evaluate of characteristics of dental transposition in digital panoramic radiographs of pediatric patients. Methods: A transversal, descriptive and retrospective study was carried out with 2386 digital panoramic radiographs of patients who are among 6 and 17, attended at Cayetano Heredia University dental center from 2015 to 2018. Results: The dental transposition frequency was 0.96%, of which 52.17% were female and the complete dental transpositions were 96.55%. According to the localization in the right-upper quadrant represents 51.72% and left-upper quadrant represents 48.28%. The premolar maxillary canines’ transpositions are most usual and represents 82.76%. Conclusions: The dental transposition frequency was low, the complete dental transposition was more common, and they were located on the upper maxilla with a predilection on the right side. The canine tooth and...
17
artículo
Publicado 2020
Enlace
Enlace
Objectives: Compare the dimension of the upper and lower pharyngeal airspace between the skeletal deformities class I, II and III in cephalometric radiographs. Material and methods: A retrospective type of study was made where there were analyzed 106 side radiogra- phies, taken in the X-ray center of the University health Center of the Peruvian University of Applied Sciences UPC between the years 2011 and 2014. Through the program Nemoceph® the main cephalometrics points and tracings were marked to be able to obtain the skeletal deformity (Steiner) and the dimension of the upper and lower airspace (McNamara). Results: In the upper pharyngeal airspace it was found that the highest aver- age dimension was 17.68 mm founded in the dentofacial deformation class III, and the lowest in class II with a value of 13.71 mm. Fort the lower airspace, the highest average was 15.98mm and the lowe...
18
artículo
Publicado 2021
Enlace
Enlace
Objective: To evaluate the posticus ponticulus according to the skeletal relationship found in strict lateral radiographs at the Teaching Dental Center of the Cayetano Heredia Peruvian University during the period 2015-2017, using the classification according to the degree of mineralization described by Selby and the classification of the Steiner’s skeletal relationship. Material and Methods: It was performed on strict digital lateral radiographs using a 20-inch screen using the SIDEXIS XG program, observing the degree of mineralization of ponticulus posticus: no evidence of the bone spicule on the vertebral artery = absent bridge, when it was noted or evidenced the formation of the spicule and / or calcification in the middle of the bridge or in incomplete form = partial bridge, when the bone arch was clearly finished visualizing = full bridge and the classification of the skeletal re...
19
artículo
Publicado 2024
Enlace
Enlace
Objective: To identify the radiographic findings associated with postsurgical nerve alteration in lower third molar surgery in patients treated in the Faculty of Odontology operating room from 2015 to 2019. Materials and methods: This cross-sectional study included a population composed of medical records and panoramic radiographs of patients who underwent lower third molar extraction at the Faculty of Odontology, Universidad Central del Ecuador (FOUCE), from 2015 to 2019. The sample was selected based on inclusion and exclusion criteria. Radiographic predictor signs were observed, and the presence or absence of nerve alteration was assessed from the evolution notes. Data were recorded in an Excel file, and statistical analysis was conducted using SPSS version 25.0. Descriptive statistics for absolute and relative frequencies, as well as the relationship between variables, were analyzed ...
20
artículo
Publicado 2021
Enlace
Enlace
Introduction: Posteroanterior Chest X-Ray (CXR) is usually performed as a routine exam for workers’ health surveillance, but their benefits are discussed and controversial. Our investigation described the associated factors with abnormal digital CXR in workers without respiratory symptoms. Materials and methods: An analytical cross-sectional observational study was performed, including 24 069 digital CXR obtained from workers without respiratory symptoms who performed their workers’ health surveillance at an accredited occupational health center in Lima, Perú, from 2016 to 2019. Results: Of the 24069 asymptomatic workers, 1166 (4.84%, 95% CI [4.58-5.12]) had abnormal radiography. The main findings were found in the lung parenchyma and of these, sequential images of tuberculosis were the most frequent. It was observed that workers older than 50 years (RP(a) = 6.34), those with low we...
