Chapter 1 Introduction to Imaging and Radiologic Sciences Questions and Answers

Bone Densitometry - also known as BD Bone Densitometry - Measurement of bone density using duel enery x-ray absorptiometry (DEXA or DXA) to detect osteoporosis Cardiovascular Interventional Technology - Radiologic procedures for the diagnosis and treatment of diseases of the cardiovascular system Cardiovascular Interventional Technology also known as - CVIT Computed Tomography also known as - CT Computed Tomography - Recording of a predetermined plane in the body using an x-ray beam that is measured, recorded, and then processed by a computer for display on a monitor Diagnostic Medical Sonography - visualization of deep structures of the body by recording the reflections of pulses of the ultrasonic waves directed into the tissue Energy - capacity to operate or work Ionization - Any process by which a neutral atom gains or loses an electron, thus requiring a net charge Magnetic Resonance Imaging also known as - MRI Magnetic Resonance Imaging - Process of using a magnetic field and radiofrequencies to create sectional images of the body Mammography - radiography of the breast Nuclear Medicine Technology - branch of radiology that involves the introduction of radioactive substances into the body for both diagnostic and therapeutic purposes Positron Emission Tomography also known as - PET Positron Emission Tomography - the creation of sectional images of the body that demonstrate the physiologic function of various organs and systems Radiation - Energy transmitted by waves through space or through a medium Radiation therapy - branch of radiology involved in the treatment of disease by means of x-rays or radioactive substances Radiography - Making of records (radiographs) of internal structures of the body by passing x-rays or gamma rays through the body to act on specially sensitized film or an imaging plate or system Radiologic Technologist also known as - RT Radiologic Technologist - general term applied to an individual who preforms radiograhpy, radiation therapy, or nuclear medicine technology Radiologist - Physician who specializes in the use of x-rays and other forms of both ionizing and nonionizing radiation in the diagnosis and treatment of disease Radiologist Assistant also known as - RA Radiologist Assistant - an advanced level radiographer who extends the capacity of the radiologist in the diagnostic imaging environment, thereby enhancing patient care Radiology - branch of the health sciences dealing with radioactive substances and radiant energy and with diagnosis and treatment of disease by means of both ionizing (e.g., roentgen rays) and non ionizing (e.g., ultrasound) radiation Roentgen Ray - synonym for x-ray X-ray - electromagnetic radiation of short wavelength that is produced when electrons moving at high velocity are suddenly stopped Hippocrates - Greek physician, considered to be father of western medicine William Harvey - english physician, modern medicine Edward Jenner - smallpox vaccine Louis pasteur - infections Koch developed - test for TB Florence Nightingale - foundations of modern nursing Sir Alexander Fleming - discovered penicillin Jonas Salk - polio vaccine Wilhelm Roentgen - german physicist discovered x-rays X-rays are named so - because x is the symbol for an unknown variable _________ won the first nobel prize in physics in 1901 - Wilhelm Roentgen Radiography - mainly a diagnostic service that focuses on imaging of patients to diagnosis disease Radiography can also be referred to by different names such as: - Radiology; X-ray, Medical Imaging, Diagnostic Services, Imaging Services, Imaging Opportunities in Radiologic Technology include: - Radiography, Cardiovascular interventional technology, mammography, radiologist assistant, nuclear medicine, radiation therapy, bone densitometry, computed tomography, diagnostic medical sonography, magnectic resonance imaging. Radiography - uses electromagnetic energy in the form of x-rays to create medical images medical sonography - -uses high frequency sound energy to create medical images - nonionizing - has a wide variety of medical applications Magnetic Resonance Imaging - -Uses the energy of high strength magnetic fields and radio waves to create images of the body - nonionizing