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medical specialty that studies the characteristics and uses of radioactive substances in diagnosis of disease
characteristics of a CT scan
uses ionizing x-rays and computer to produce a transverse image of the body organs
characteristics of an MRI
sagittal, frontal, and cross-sectional images are produced using magnetic and radio waves
perfusion study of the lung
test that is a radiopharmaceutical injected intravenously and traced within the vessels of the lung
interventional radiologists perform
placement of drainage catheters, occlusion of bleeding vessels, istillation of antibiotics or chemotherapy via catheters
positron emission tomography
radioactive substance is given intravenously and a cross-sectional image is created of cellular metabolism based on local concentration of the radioactive substance
x-ray beams are focused from the body onto an image intensifier that glows as a result of the ionizing effect of x-rays
x-ray pictures are taken circularly around an area of the body and a computer synthesizes the information into a composite axial picture
therapeutic procedures are performed by a radiologist under the guidance of fluoroscopy or ultrasound
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