Search results for "Examination"
showing 10 items of 563 documents
A 15-Year-Old Boy with Anterior Chest Pain, Progressive Dyspnea, and Subcutaneous Emphysema of the Neck
2009
We describe the case of an adolescent who was admitted to the hospital because of sudden occurrence of chest pain, dyspnea and subcutaneous emphysema. On admission, physical examination revealed subcutaneous crepitations in the superior part of the rib cage, and auscultation of the chest showed widespread wheezing. The radiological assessment confirmed the diagnosis of pneumomediastinum and pneumothorax. A follow-up CT scan performed one week after the admission showed almost complete resolution of the radiological alterations. At the following visits, the patient was asymptomatic, but reported to have suffered from frequent episodes of rhinorrea, sneezing, nasal blockage, and sometimes, ch…
Preparation for Endoscopic Examination
1979
Inspection of the perianal area, the digital rectal examination, and the proctoscopic examination may be done without special preparation.
Correcting for non-ignorable missingness in smoking trends
2015
Data missing not at random (MNAR) is a major challenge in survey sampling. We propose an approach based on registry data to deal with non-ignorable missingness in health examination surveys. The approach relies on follow-up data available from administrative registers several years after the survey. For illustration we use data on smoking prevalence in Finnish National FINRISK study conducted in 1972-1997. The data consist of measured survey information including missingness indicators, register-based background information and register-based time-to-disease survival data. The parameters of missingness mechanism are estimable with these data although the original survey data are MNAR. The u…
Bayesian models for data missing not at random in health examination surveys
2018
In epidemiological surveys, data missing not at random (MNAR) due to survey nonresponse may potentially lead to a bias in the risk factor estimates. We propose an approach based on Bayesian data augmentation and survival modelling to reduce the nonresponse bias. The approach requires additional information based on follow-up data. We present a case study of smoking prevalence using FINRISK data collected between 1972 and 2007 with a follow-up to the end of 2012 and compare it to other commonly applied missing at random (MAR) imputation approaches. A simulation experiment is carried out to study the validity of the approaches. Our approach appears to reduce the nonresponse bias substantially…
US-Elastography for Breast Lesion Characterization: Prospective Comparison of US BIRADS, Strain Elastography and Shear wave Elastography
2020
To evaluate the diagnostic performance of strain elastography (SE) and 2 D shear wave elastography (SWE) and SE/SWE combination in comparison with conventional multiparametric ultrasound (US) with respect to improving BI-RADS classification results and differentiating benign and malignant breast lesions using a qualitative and quantitative assessment. In this prospective study, 130 histologically proven breast masses were evaluated with baseline US, color Doppler ultrasound (CDUS), SE and SWE (Toshiba Aplio 500 with a 7-15 MHz wide-band linear transducer). Each lesion was classified according to the BIRADS lexicon by evaluating the size, the B-mode and color Doppler features, the SE qualit…
Technique of CT Examination
1981
The three study groups used the same CT systems during the investigation period : the EMI Mark I head scanner from 1975 until June 1977 and the EMI CT 1010 head scanner from the middle of 1977, with the Diagnostic Enhancement Package since March 1980. Special studies of the base of the skull were performed with an EMI CT 5005 body scanner (Department of Radiology, Klinikum Steglitz, Free Universityof Berlin).
Use of Different Food Classification Systems to Assess the Association between Ultra-Processed Food Consumption and Cardiometabolic Health in an Elde…
2021
The PREDIMED-Plus trial was supported by the European Research Council (Advanced Research grant 2014–2019; agreement #340918; granted to M.Á.M.-G.); the official Spanish institutions for funding scientific biomedical research, CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII) through the Fondo de Investigación para la Salud (FIS) which is co-funded by the European Regional Development Fund (coordinated FIS projects led by J.S-S. and J.V., including the following projects: PI13/00673, PI13/00492, PI13/00272, PI13/01123, PI13/00462, PI13/00233, PI13/02184, PI13/00728, PI13/01090, PI13/01056, PI14/01722, PI14/00636, PI14/00618, PI14/00696, PI…
A new tool to create on-line examinations. Integration into Aula Virtual.
2009
Actualmente, la Universitat de València utiliza un Sistema de Gestión del Aprendizaje (en ingles Learning Management System LMS), como apoyo al proceso de enseñanza-aprendizaje. Este LMS incluye una herramienta que permite a los profesores crear exámenes online. Sin embargo, la interfaz de usuario que provee la plataforma no presenta un entorno amigable. Para mejorar la usabilidad del modulo, hemos desarrollado un programa informático que simplifica el proceso. Partiendo de un programa open source denominado QAED, desarrollado en la Universitat Pompeu Fabra, lo hemos extendido para permitir a los profesores crear exámenes offline. Después, pueden importarse fácilmente al Aula Virtual.
Lung Ultrasonography – A Paraclinical Investigation Promoter in Community-Acquired Pneumonia Diagnosis in Children
2019
Abstract Lung ultrasonography is an excellent alternative to chest radiography, with better sensitivity, specificity, positive and negative predictive values and, finally, with better accuracy. The lung ultrasonography is proven to be useful in trying to reduce the request of chest radiography. In the opinion of most specialists, lung ultrasonography is recommended to be a valuable tool for the diagnosis of community-acquired pneumonia in children. Considering the fact that clinical examination remains essential because it suspects the diagnosis, the evolution does not require radiologic follow-up, also the pathologic findings at the clinical examination may change over the course of a day,…
Histophotometry: a new method for automated histological examination of solid tissue samples demonstrated on bladder cancer.
1979
The purpose of this study was to demonstrate the ability of a new method to discriminate between benign and malignant tissue. Tissue samples from three patients with bladder tumours and one patient with bladder diverticula have been examined by histophotometry. This method, based on the correlation of nuclear volume and nucleic acid contents per cell uses thick formalin fixed samples. The results are obtained by measurements averaging more than one hundred thousand cells per sample. By this histophotometric examination a clear differentiation between malignant and benign tissue could be achieved. It was also possible to determine the degree of malignancy and to differentiate between infiltr…