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Category General Radiology
Artificial Intelligence and Radiology
Introduction Artificial intelligence (AI) is the field of computer science that involves the simulation of intelligent behavior by computers. It is used to predict, automate, augment, and optimize tasks historically done by humans. To provide an overall view of some…
Diagnostic Radiology Signs
A B C D E F G H I J K L M N O P R S T U V W Y A Absent Bow-Tie Sign Accordion Sign Air Bronchogram Air Crescent Sign Angel-Wing (Bat-Wing) Pattern Angel-Wing Sign (Spinnaker…
Early History and Public Exuberance of the Discovery of X-rays
It is difficult to imagine the level of excitement that was felt around the world soon after the discovery of x-rays by Wilhelm Roentgen in 1895. For the first time ever, we could see inside the human body while the…
Key Terminology and Glossaries
General Terminology Like politics, all terminology is local. Follow the terminology conventions used in your hospital or, alternatively, the person rendering your course grade, even if those conventions are different from what is described here. You’re Reading a Preview Become…
Radiation Dose and Safety
Ionizing Radiation in Radiology Utilizing the modalities of conventional radiography, computed tomography (CT), and fluoroscopy, diagnostic images are produced using ionizing radiation. It is well known that radiation can also have harmful effects if used in excess or certain situations.…
The ABCs of Heart Disease
This is a system for diagnosing cardiac disease in adults by asking a series of questions in a set fashion , the answers to which are certain fundamental observations made from the frontal chest radiograph alone. This system is for…
Nuclear Medicine: Understanding the Principles and Recognizing the Basics
How it Works A radioactive isotope (radioisotope) is an unstable form of an element that emits radiation from its nucleus as it decays. Eventually, the end product is a stable, nonradioactive isotope of another element. Radioisotopes can be produced artificially,…
Recognizing the Findings in Breast Imaging
Breast imaging is the field of radiology dedicated to the detection and management of breast abnormalities, especially breast cancer. Breast cancer is second only to skin cancer as the most common cancer diagnosed in women and is the second leading…
Using Image-Guided Interventions in Diagnosis and Treatment (Interventional Radiology)
Interventional radiology (IR), also known as vascular and interventional radiology (VIR), is a medical specialty that utilizes image guidance to perform minimally invasive diagnostic or therapeutic procedures. Image guidance may be provided by fluoroscopy, ultrasound (US), computed tomography (CT), or…