Page 44 - REVISTA FOTON RX UPTMKR VOlomen 1 No 1 2

Revista Fotón RX. Volumen 1, N° 1. Octubre - Diciembre 2016. Universidad Politécnica Territorial de Mérida Kléber Ramírez,
Ejido. Mérida. Editorial.
Abstract

All scanning techniques that use X-rays are based on the attenuation or
changes in intensity experienced by a beam of X radiation as it traverses an
area of the human body made up of different tissues. The radiation image of
the emerging beam is formed by photons of X radiation that are invisible to
the human eye so it will be necessary to use some type of receiver that ma-
kes it visible. Conventional Fluoroscopy, consisting of the visualization of
images of structures or moving liquids, its main utility is the performance of
tests or dynamic studies. In fluoroscopy, the information of the emerging
beam is collected in the image intensifier, which transforms the energy of the
X-rays into light and then is reproduced on a television monitor where the
images can be seen. Fluoroscopic images are not a permanent record, since
they are images that are produced in real time and can not be stored or ar-
chived. Therefore, the most frequent when doing fluoroscopic studies is to
perform x-rays of the observed images or to film them (cinerradiography) or
to record them in video. The fundamental use of conventional fluoroscopy is
the study of the digestive system, observing the displacement of a contrast
medium ingested by the patient (barium sulfate) through the digestive tract.
Because fluoroscopy involves the use of X-rays, a type of ionizing radiation,
all fluoroscopic procedures pose a potential health risk to the patient. The
present work consists of an informative compilation on the use of Fluorosco-
py and adverse effects on the human body.

Key words: Fluoroscopy, Images, Radiography and Risks.

Introducción vídeo CCD, lo que permite que las
La fluoroscopia o radioscopia es imágenes sean grabadas y repro-
una técnica de imagen que utiliza ducidas en un monitor. El uso de
medios de contraste usada rayos X, un tipo de radiación ioni-
en medicina para obtener imáge- zante, exige que los riesgos poten-
nes en tiempo real de las estructu- ciales de un procedimiento sean
ras internas de los pacientes me- sopesados cuidadosamente frente
diante el uso de un fluoroscopio. a los beneficios esperados para el
En su forma más simple, paciente. Aunque los radiólogos
un fluoroscopio consiste en una siempre intentan usar dosis bajas
fuente de rayos X y una pantalla de radiación durante las fluorosco-
fluorescente entre las que se sitúa pia, la duración de un procedimien-
al paciente. Sin embargo, los fluo- to típico resulta a menudo en
roscopios modernos acoplan la una dosis absorbida (kerma en aire
pantalla a un intensificador de ima- a la entrada del paciente) relativa-
gen de rayos X y una cámara de mente alta para el paciente. Avan-
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