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…
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…
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.…
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…
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,…
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…
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…
Children differ physiologically from adults and are susceptible to abnormalities in development and maturation not seen in adults. They differ in anatomy (e.g., the thymus) and are more susceptible to the harmful effects of ionizing radiation. This chapter will highlight some…
Advances in neuroimaging have had a remarkable impact on the diagnosis and treatment of neurologic diseases ranging from earlier detection and treatment of stroke to a more timely diagnosis of dementia, from the rapid detection and treatment of cerebral aneurysms…
Abdominal Trauma The role of advanced imaging techniques deserves special mention in abdominal trauma. Radiology has made a significant impact on the lives of traumatized patients by distinguishing those patients who can be managed conservatively from those who need surgical…