ABSTRACT The transition from analog to digital radiology has expanded the capabilities of radiological imaging but has also made it possible to increase the radiation dose received by patients. Image quality in radiology is determined by factors such as radiographic techniques (kVp and mAs), which direct...
Objective: To recognize the usefulness of incorporating Three-Dimensional models of standardized humans in electronic health records, in the context of the development of a teledentistry web platform designed for the attention of the elderly population in COVID-19 pandemic context. Material and Methods: ...
En esta investigación se planteó como objetivo la verificación del comportamiento dosimétrico del Sistema de Planificación de Tratamiento (TPS) de Radioterapia mediante las curvas de calibración de Densidades Electrónicas Relativas (DER). Este estudio se realizó en el Hospital de la Sociedad de L...
SUMMARY: The purpose of this research was to develop a free radiological anatomy software for radiologic anatomy education to assist students and professionals in health science. The study was divided into two phases: image acquisition and software development. The first phase was to obtain plain radiogr...
Anatomía/educación,
Aprendizaje,
Educación Médica/métodos,
Tecnología Educacional,
Programas Informáticos,
Fantasmas de Imagen,
Tomografía Computarizada por Rayos X,
Instrucción por Computador,
Tórax/diagnóstico por imagen,
Cabeza/diagnóstico por imagen,
Cuello/diagnóstico por imagen,
Puntos Anatómicos de Referencia
Mejia, Jorge;
Miranda, Ana Claudia Camargo;
Durante, Ana Claudia Ranucci;
Oliveira, Larissa Rolim de;
Barboza, Marycel Rosa Felisa Figols de;
Rosell, Katerin Taboada;
Jardim, Daniele Pereira;
Campos, Alexandre Holthausen;
Reis, Marilia Alves dos;
Catanoso, Marcela Forli;
Galvis-Alonso, Orfa Yineth;
Cabral, Francisco Romero.
ABSTRACT Objective: To present the result of upgrading a clinical gamma-camera to be used to obtain in vivo tomographic images of small animal organs, and its application to register cardiac, renal and neurological images. Methods: An updated version of the miniSPECT upgrading device was built, which i...
Imagen Molecular/instrumentación,
Tomografía Computarizada de Emisión de Fotón Único/instrumentación,
Investigación Biomédica Traslacional/instrumentación,
Encéfalo/diagnóstico por imagen,
Corazón/diagnóstico por imagen,
Corazón/anatomía & histología,
Riñón/diagnóstico por imagen,
Ratones,
Modelos Animales,
Imagen Molecular/métodos,
Fantasmas de Imagen,
Tomografía Computarizada de Emisión de Fotón Único/métodos
ABSTRACT Introduction: To assess the effect of a hands-on ultrasound training session to teach urologic trainees ultrasound-guided percutaneous needle placement. Materials and methods: University of California, San Francisco (UCSF) urology residents completed a time trial, placing a needle into a phant...
Abstract. In order to have a more accurate estimation of the dose delivered for computed tomography (CT) studies, and given that the current dose estimates do not include the size of the patient, a retrospective study was conducted on a sample of 388 patients from the radiology department of a general ho...
Abstract. The use of CT has continued to increase in the last few years, making it the largest contributor to the collective world dose. Children are not exempt from this, with a potentially increasing risk. The effect of tube voltage as a tool for dose reduction has been studied with the aim of investig...
La densidad mineral ósea (DMO) por tomografía computarizada cuantitativa (QCT) mide
con exactitud y precisión de corto plazo la densidad volumétrica (DMOv) de secciones axiales de los cuerpos vertebrales lumbares valiéndose de un fantoma de calibración. Existe evidencia de que la densitometría por...
Abdomen/diagnóstico por imagen,
28599,
Columna Vertebral/anatomía & histología,
Columna Vertebral/diagnóstico por imagen,
Densidad Ósea,
Densitometría/instrumentación,
Densitometría/métodos,
Factores de Edad,
Factores Sexuales,
Fantasmas de Imagen,
Osteoporosis/diagnóstico por imagen,
Osteoporosis/prevención & control,
Tomografía Computarizada por Rayos X/instrumentación,
Tomografía Computarizada por Rayos X/métodos
O controle de qualidade da imagem em equipamentos ultra-sônicos de diagnósticos é baseado em parâmetros determinados por norma (IEC, 1996). Todos os parâmetros citados nesta norma, com exceção da Largura de Banda, podem ser avaliados utilizando-se de phantoms de tecidos biológicos. Baseado em nor...
