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Images of the Earth taken from those satellites are available on the internet at no c. 401(k) withdrawals have rules that, if broken, could come with steep penalties. A spectral image contains many spectra, one for each individual point on the sample's surface. Our subspecialized imaging physicians use the latest technology to offer a comprehensive range of breast imaging studies to address the specific needs of our patient at every stage of life. The type of imaging your doctor uses depends on your symptoms and the part of your body being examined. Medical imaging also establishes a database of normal. Each image contains a certain number of pixels or dots that are displayed on a screen. A myelogram is an imaging test that takes detailed pictures of your spine. Ultrasound, also called sonography, shows the structures inside the body. This chapter focuses on IR radiation, radiometry, blackbody. Today medical imaging is an essential component of the entire health-care continuum, from wellness and screening, to early diagnosis, treatment selection, and follow-up One algorithm is taught verbally with the definition of the features of a bird (e "a flying animal with wings and feathers"). Brewster's angle imaging The angle of incidence in ellipsometry is generally chosen to be close to the Brewster's angle, θ B = arctan (n), where n is the refractive index of the object and is wavelength dependent. It is designed to suppress the signal from fluids such as cerebrospinal fluid (CSF) and blood, while retaining the signal from most other tissues. A PACS (picture archiving and communication system) is a medical imaging technology that allows the remote retrieval of medical images and associated data. Radiology and imaging is a medical specialty that uses various imaging techniques to diagnose and treat diseases within the body. NIST phantoms are often commercialized and used to calibrate—or compare to standard scales—imaging systems used in real-world settings, including major clinical trials. These patterns provide information on the. Anatomical planes are imaginary planes/2D surfaces used to divide the body to facilitate descriptions of location and movement. [36] VCTs, as a general term, can be ascribed to simulation studies that emulate clinical experiments. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. There are several types of tomography including computed tomography (CT), positron emission tomography (PET), and single. These images provide a single reference of a machine configured for an organization's computing environment. medical imaging (radiology) Medical imaging, also known as radiology, is the field of medicine in which medical professionals recreate various images of parts of the body for diagnostic or treatment purposes. A regular ultrasound uses sound waves to produce images, but can't show blood flow. The meaning of REIMAGINE is to imagine again or anew; especially : to form a new conception of : re-create. The great American sports car is going electric. It is part of the data backup process that enables the creation of replica images or instances of an entire computing device. EEG (electroencephalogram): An electroencephalogram (EEG) is a test that detects electrical activity in your brain using small, flat metal discs (electrodes) attached to your scalp. Perfusion and diffusion magnetic resonance imaging (MRI) are commonly used by neuroradiologists in everyday clinical practice. Image resolution is the level of detail of an image. The meaning of IMAGE is a visual representation of something. The images can be stored on a computer or printed on film. tomography,, radiologic technique for obtaining clear X-ray images of deep internal structures by focusing on a specific plane within the body. One of the most obvious alternatives to brick-and-mort. the process of producing an exact picture of something, especially on a computer screen: 2 En savoir plus. A key advantage of a digital image, versus an analog image such as a film. Tomography is a medical imaging technique that takes pictures of slices or cross-sections of the body at different levels which can be combined to create a 3D image. Optical coherence tomography (OCT) is a non-invasive technique for cross-sectional tissue imaging. Most ultrasounds are done using a device outside the body. This test is often called a nuclear stress test. Fringe medicine. Interventional radiology (IR) is a medical specialty that performs various minimally-invasive procedures using medical imaging guidance, such as x-ray fluoroscopy, computed tomography, magnetic resonance imaging, or ultrasound. Today medical imaging is an essential component of the entire health-care continuum, from wellness and screening, to early diagnosis, treatment selection, and follow-up One algorithm is taught verbally with the definition of the features of a bird (e "a flying animal with wings and feathers"). tomography,, radiologic technique for obtaining clear X-ray images of deep internal structures by focusing on a specific plane within the body. Theranostics, also known as theragnostics, is a technique in personalised medicine and nuclear medicine where one radioactive drug is used to identify and a second radioactive drug is used to treat cancerous tumors In other words, theranostics combines radionuclide imaging and radiation therapy which targets specific biological pathways. This innovative imaging technology combines anatomical structure with functional data such as electric and magnetic fields, motion which is mechanical, and metabolism to provide information on anatomical structure Rayleigh resolution criteria is an additional choice. A contrast medium can be used to highlight soft tissues in still X-ray pictures or can be followed on X-ray motion-picture films as it. Holography. A SPECT scan is a type of imaging test. Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. The images can help guide diagnosis and treatment for many diseases and conditions. Most MRI machines are large, tube-shaped magnets. Definition of imaging noun in Oxford Advanced Learner's Dictionary. The electron source and electromagnetic lenses that generate and focus the. 4. Most MRI machines are large, tube-shaped magnets. Unlike conventional cameras that create pictures using visible light, thermal cameras operate in the long-wavelength infrared spectrum, which extends up to 14,000 nanometers. It is the second most common complaint to visit a provider in the United States. When you lie inside an MRI machine, the magnetic field inside works with radio waves and hydrogen atoms. Somatom Definition AS. The meaning of IMAGE is a visual representation of something. X-ray, Computed Tomography (CT), Magnetic Resonance Imaging (MRI), Nuclear. Forensic imaging is often represented as a new field emerging from multidisciplinary work and research in forensic medicine and radiology. (science: producing images) (tecnologia) produzione di immagini, realizzazione di immagini nf The physicist worked for NASA helping them with their imaging. The PET scan uses a radioactive drug called a tracer to show both typical and atypical metabolic activity. However, computational methods have been developed to analyze topics related to the object (e, dose, variability due to patient characteristics and to organ movement) and topics. 2 Imaging Protocol Definition. May 9, 2022 · An MRI (magnetic resonance imaging) scan is a painless test that produces very clear images of the organs and structures inside your body. See our disk clone term for further information. See examples of THERMAL IMAGING used in a sentence. One effective way to convey appreciation is through the use of thank you images. Accurate determination of the extent and grade of adult-type diffuse gliomas is critical to patient management. Stereo imaging refers to the aspect of sound recording and reproduction of stereophonic sound concerning the perceived spatial locations of the sound source (s), both laterally and in depth. But what are the different types of brain scans and what could they show? Many brain imaging techniques ar. imaging - WordReference English dictionary, questions, discussion and forums imaging. Ultrasound images are displayed in either 2D, 3D, or 4D (which is 3D in motion). An ultrasound is an imaging test that uses sound waves to make pictures of organs, tissues, and other structures inside your body. Many imaging systems only recognize one unit, the page. Fluorescence imaging is a type of non-invasive imaging technique that can help visualize biological processes taking place in a living organism. The backscattered light is measured with an interferometric set-up to reconstruct the depth profile of the sample at the selected location. GM shared the news this morning, and released the first images of the upcoming electric Chevrolet Corvette. As early as in the end of 19th century, X-ray was used for postmortem purposes []. Clarifying and unifying the definition of atypical pneumonia among the medical community, including radiologists, are of extreme importance. refrigeration temperature Sometimes you want to mount a disk image to see what's inside, install software, or even play a game, but you don't always want to burn a CD or DVD to do it. 73 mt2, persisting for 3 months or more, irrespective of the cause. Examples of cardiac imaging methods are chest X-ray, cardiac MRI and nuclear cardiac stress testing. Many imaging systems only recognize one unit, the page. The NACC imaging database is a large, freely available sample of MRIs and PET scans that are linked to the. Abstract. CT scan images show more detail than. Each pixel is mapped onto a grid and stored in a specific sequence onto a computer. Depending on the type of radiation that those radioisotopes produce, they can be used to diagnose or treat several medical conditions. The standard therefore defines both a file format and a networking protocol. Lighting conditions in both natural and man-made environments can range. Diagnostic imaging, the use of electromagnetic radiation and certain other technologies to produce images of internal structures of the body for the accurate diagnosis of disease. The simplest method is linear tomography. harry potter fanfiction calls in all loans 3D imaging synonyms, 3D imaging pronunciation, 3D imaging translation, English dictionary definition of 3D imaging 1. PACS is a comprehensive system that includes hardware, software, and networks for the storage, retrieval, and distribution of medical images. The great American sports car is going electric. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. Thermal imaging definition: the use of heat-sensitive equipment to detect or provide images of people or things. Imaging phantom as seen on a medical ultrasound machine. A thermographic camera (also called an infrared camera or thermal imaging camera, thermal camera or thermal imager) is a device that creates an image using infrared (IR) radiation, similar to a normal camera that forms an image using visible light. Definition of imaging noun in Oxford Advanced Learner's Dictionary. If you want to test out Hyperion imagery for yourself, you can download the data for free on the USGS Earth Explorer. Response Assessment in Neuro-Oncology Criteria (RANO) 1 and Macdonald 2 criteria have been used extensively to evaluate tumor response based on. Image resolution is the level of detail of an image. Three-dimensional imaging is a technique that combines many scans (from computed tomography, MRI or ultrasonography) computationally. Imaging definition: The act or process of recording or producing an image, esp. [2] The lifetime prevalence of back pain is approximately 70% to 85%. In today’s digital age, expressing gratitude has become easier than ever. heets iqos near me Penumbra (medicine) In pathology and anatomy the penumbra is the area surrounding an ischemic event such as thrombotic or embolic stroke. Examples of cardiac imaging methods are chest X-ray, cardiac MRI and nuclear cardiac stress testing. When you lie inside an MRI machine, the magnetic field inside works with radio waves and hydrogen atoms. Your doctor may request neuroimaging to screen mental or physical health. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Image resolution is the level of detail of an image. Even when you rest quietly with your eyes closed the brain is still highly active, and the patterns of activity in this resting state are thought to reveal particular networks of areas that often act together. The image file can be a copy of a single file or an entire hard drive. For the purposes of this webpage, […] Optical coherence tomography (OCT) is a technique for obtaining sub-surface images of translucent or opaque materials at a resolution equivalent to a low-power microscope. Nuclear imaging is, in a sense, radiology done inside out, because it records radiation emitted from within the body rather than radiation that is transmitted through the body from external sources like X-ray generators. A good personal image will ensure positive, lasting first imp. 443-997-7237 Maryland. Anatomic imaging is an integral part of diastolic function evaluation by providing information on LA size, LV size and wall thickness, LV systolic function, and valvular and pericardial pathology LVH is a common reason for impaired diastolic function • Concentric LVH occurs in situations of pressure overload (hypertension, aortic valve stenosis). Definition. " - Alexandra Grabbe. We’ve compiled a list of the best sources where you can find free and stunning images of these fascinating amphi. Satellite images provide a bird’s eye view of a property and can help you get a better understandi. 401(k) withdrawals have rules that, if broken, could come with steep penalties. With OCT, your ophthalmologist can see each of the retina’s distinctive layers. This type of original evidence includes incriminating data that has been deleted to prevent electronic discovery. Unlike CT scans and X-rays, an MRI does not use ionizing radiation that can be potentially. Imaging tests provide a picture of the body's interior—of the whole body or part of it. Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) visible against a background of different luminance or color. Christophe Aubé, in Clinics and Research in Hepatology and Gastroenterology, 2015 Imaging techniques allow for the diagnosis of chronic liver diseases in many ways.
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How to use reimage in a sentence. Let's explore diagnostic imaging in more. Learn More. Magnetic resonance imaging (MRI) is a pain-free, noninvasive medical test used to produce two- or three-dimensional images of the structures inside your body using a strong magnetic field and radio waves. 6%) than the other two definitions (p < 0 A medium window setting of - 50 WL/2 WW gave a larger AUC than the other nine medium window settings as well as definition 2, with 82. There are several types of tomography including computed tomography (CT), positron emission tomography (PET), and single. However, some involve placing a small device inside the body. That's where disk imag. Echo planar imaging is performed using a pulse sequence in which multiple echoes of different phase steps are acquired using rephasing gradients instead of repeated 180-degree radiofrequency pulses following the 90°/180° in a spin echo sequence. Regardless of when you do it. When you lie inside an MRI machine, the magnetic field inside works with radio waves and hydrogen atoms. Diffusion-weighted imaging (DWI) is based on the measurement of thermal Brownian motion of water molecules. X-rays are a form of electromagnetic radiation, similar to visible light. Updated every day since the year 2000 Forecast Models GFS 28 km Weather Maps : UTC. [3] The causes for low back pain range from muscle spasms and disc protrusions to more severe entities such as discitis. How to use imaging in a sentence. IMAGING meaning: 1. unable to authenticate user. sevp Forensic images include all the files visible to the operating system (OS), as well as deleted files and pieces of files left in the slack and free space. This increasing range of imaging types provides health professionals with many options for showing what is happening inside your body. Dense materials, such as bone and metal, show up as white on X-rays. Definition. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to generate images of the organs in the body. What is a Thermal Camera? A thermal camera capture and create an image of an object by using infrared radiation emitted from the object in a process that is called thermal imaging. How to use imaging in a sentence. IMAGING meaning: 1. From the perspective of the patient, the x-ray beam from the CT traces a helical path. High resolution satellite imagery is becoming increasingly popular for a variety of projects, from agricultural mapping to urban planning. Photoacoustic Imaging delivers laser pulses to a patient's tissues; the. Imaging procedures use different forms of energy, such as x-rays (high-energy radiation), ultrasound (high-energy sound waves), radio waves, and radioactive substances. Similar techniques are used in airport security, (where "body scanners. Anatomic imaging is an integral part of diastolic function evaluation by providing information on LA size, LV size and wall thickness, LV systolic function, and valvular and pericardial pathology LVH is a common reason for impaired diastolic function • Concentric LVH occurs in situations of pressure overload (hypertension, aortic valve stenosis). Definition. Kidney damage refers to. Stereo imaging. For conventional radiography, an x-ray beam is generated and passed through a patient to a piece of film or a radiation detector. This removes signal from the cerebrospinal fluid in the resulting images 1. Modern angiography is performed by injecting a radio-opaque contrast agent into the blood vessel and imaging using X-ray based. Imaging involves taking a snapshot of the software and data on a computer so it can easily be installed or the computer can be returned to this state. The ultrasound scan sequence (transverse oblique scan) commenced at the supraclavicular fossa after which the transducer was slowly swept cranially to the upper part of the interscalene groove and then in the reverse direction to the supraclavicular fossa. all fab precision sheetmetal Imaging Alternatively called computer imaging and digital imaging, imaging is a picture or document converted to a digital file and stored on a computer. The Definition of Body Image, According to Psychologists. An angiogram is a diagnostic procedure that uses imaging to show your provider how your blood flows through your blood vessels or heart. 1 This paper only covers the VCTs that are done in the context of. CT scanner Enlarge image. the process of producing an exact picture of something, especially on a computer screen: 2 Learn more. A thermal imaging camera shows which parts of your body are the warmest (medicine: scanning) (medicina) imagen nf The doctor ordered some imaging for the patient to get a better look at the problem. Imagine definition: to form a mental image of (something not actually present to the senses) See examples of IMAGINE used in a sentence. Mammography. The single lens with its attachments, or the system of lenses and imaging. How to use imaging in a sentence. IMAGING meaning: 1. Let’s explore diagnostic imaging in more. Optical or light microscopy involves passing visible light transmitted through or reflected from the sample through a single lens or multiple lenses to allow a magnified view of the sample. PACS is a comprehensive system that includes hardware, software, and networks for the storage, retrieval, and distribution of medical images. Unlike conventional cameras that create pictures using visible light, thermal cameras operate in the long-wavelength infrared spectrum, which extends up to 14,000 nanometers. For example, with a MRI, a psychologist can observe. target redcard payment login (IH-muh-jing proh-SEE-jer) A type of test that makes detailed pictures of areas inside the body. magnetic resonance imaging (mri) Magnetic Resonance Imaging (MRI) is a method used for studying the functions of the brain (or any living tissue) without surgery. Radiologists and radiology staff conduct advanced, high-quality diagnostic imaging tests and perform an array of image-guided therapies. It typically uses light in the near-infrared spectral range which has a penetration depth of several hundred microns in tissue. 3D imaging is a technology that creates three-dimensional models of objects or environments using various techniques, such as lasers, ultrasound waves, or X-rays. With OCT, your ophthalmologist can see each of the retina's distinctive layers. Radiology (/ ˌ r eɪ d ɪ ˈ ɒ l ə dʒ i / rey-dee-ol-uh-jee) is the medical specialty that uses medical imaging to diagnose diseases and guide their treatment, within the bodies of humans and other animals. [2] [3] There are three general types of spectral imagers. These techniques provide detailed images of internal organs, tissues, and structures, allowing healthcare professionals to identify abnormalities, monitor disease progression, and guide treatment decisions. The radiology definition in medical terms is a branch of medicine that uses imaging to diagnose and treat disease. Citation, DOI, disclosures and article data. Mar 3, 2016 · Diagnostic imaging lets doctors look inside your body for clues about a medical condition.
imaging - WordReference English dictionary, questions, discussion and forums Jun 20, 2018 · Generally, neuroimaging is an umbrella term for multiple methods, technologies, and noninvasive techniques (modalities) that provide structural and functional data regarding neural mechanisms, including electroencephalography (EEG), magnetoencephalography (MEG), functional magnetic resonance imaging (fMRI), positron emission tomography (PET), and near-infrared spectroscopy (NIRS), which yield. Vector images offer numerous benefits over raster images, including scalability and. digital imaging technology. Your provider can use X-rays or other types of imaging for your angiogram. The helical path results in a three-dimensional data set. Thermographic cameras usually detect radiation in the long- infrared range of the. Jul 1, 2023 · INTERVENTIONAL RADIOLOGY. 31 oak street Thermographic cameras usually detect radiation in the long- infrared range of the. digital subtraction imaging a technique in radiography in which electronic subtraction allows the visualization of individual images; see also digital subtraction angiography. When 3-D images are made interactive so that users feel involved with the scene, the experience is called virtual reality. The result is an unprecedented window into cell biology in which a cell can be imaged fast, in 4D ( x, y, z, time) in its natural environment embedded in its tissue. [1][2] This reactivation of the dormant VZV is known as herpes zoster or shingles. +1-410-502-7683 International. cic plus These metabolic changes can be consequent to task-induced cognitive state changes or the result of unregulated processes in the resting brain. The created image represents the temperature of the object. Magnetoencephalography (MEG) is a test that measures the magnetic fields your brain's electrical currents produce. Medical imaging is a vital tool in patient care as it involves diagnosis, monitoring, and treatment planning for countless conditions. Mirror image definition: an image of an object, plan, person, etc. Oct 11, 2018 · Diffusion tensor imaging (DTI) is a newly developed magnetic resonance imaging (MRI) technique that analyzes the anatomy of nerve cells and a complex neuronal network of the brain. innertite barrel lock key Advertisement Although search engines provid. It is a fundamental concept in medical imaging that impacts the quality of diagnostic images. Color flow imaging is a vascular technology used to assess the vascular anatomy and flow within blood vessels. Low back pain is a ubiquitous symptom. See examples of THERMAL IMAGING used in a sentence. scanning electron microscope (SEM), type of electron microscope, designed for directly studying the surfaces of solid objects, that utilizes a beam of focused electrons of relatively low energy as an electron probe that is scanned in a regular manner over the specimen. A regular ultrasound uses sound waves to produce images, but can't show blood flow.
Ghost imaging is the process of creating data images of the content and configuration of a computer, server or similar device. Advertisement Although search engines provid. The term is often assumed to imply or include the processing, compression, storage, printing and display of such images. It is based on sophisticated technology that excites and detects the change in the direction of the rotational axis of protons found in the. imaging procedure. Keywords: Colonoscopy, polyp, detection, imaging, high definition (HD), virtual chromoendoscopy, AI, advances. Neutron imaging. Diffusion tensor imaging is a magnetic resonance imaging method that measures the diffusion patterns of molecules in biological tissue. It typically uses light in the near-infrared spectral range which has a penetration depth of several hundred microns in tissue. Tomography in Radiology: Definition and Imaging Techniques. It uses magnetic fields and radio waves to create detailed images of the brain, allowing researchers and clinicians to observe neural activity in real-time and identify specific. Definition. Examples of cardiac imaging methods are chest X-ray, cardiac MRI and nuclear cardiac stress testing. Print of a glass negative of a US horse-drawn fire engine in 1910. Advertisement When you look at yourself in a. In medicine, emergence of artificial intelligence which origin from years 1950, is the outcome of three radical disruptive innovations: (1) digitalization of medical imaging techniques that allows their parametric use, (2) algorithms development that allows use of natural language processing on medical records, and (3) "deep learning" algorithms allowing treatment of uncategorized data (e. Doctors often use PET scans to diagnose a condition or track its progression. It is also used to follow the course of a disease. It is designed to suppress the signal from fluids such as cerebrospinal fluid (CSF) and blood, while retaining the signal from most other tissues. Radiopaque structures such as bones are eliminated ("subtracted") digitally from the image, thus allowing for an accurate depiction of the blood vessels. It uses very small amounts of a radioactive substance (radionuclide or radio-tracer) for health research, diagnosis, and treatment of various conditions, including cancer. We define fundus imaging as the process whereby reflected light is used to obtain a two-dimensional (2D) representation of the 3D, semitransparent, retinal tissues projected on to the imaging plane. MRI uses a large magnet, radio waves and a computer to produce these detailed images. Satellite images are a valuable tool for gaining insight into property and its surroundings. Nuclear imaging is, in a sense, radiology done inside out, because it records radiation emitted from within the body rather than radiation that is transmitted through the body from external sources like X-ray generators. living room lights amazon A positron emission tomography (PET) scan is an imaging test that can help reveal the metabolic or biochemical function of your tissues and organs. Ultrasound is usually the appropriate initial imaging for women. Accuracy is composed by both linearity and precision. Cardiologists also use it to help diagnose coronary artery disease. Diagnostic imaging definition is the use of machines to help diagnose medical conditions. The photographic recording of the image is called a hologram, which appears to be an unrecognizable pattern of stripes and whorls but which—when illuminated by coherent light, as by a laser beam—organizes the light. This is accomplished by rapidly reversing the readout or frequency-encoding gradient. You are considered asymptomatic if you: National Cancer. It can show areas of the heart muscle that aren't getting enough blood flow. Lidar may operate in a fixed direction (e, vertical) or it may scan multiple directions. Helical (aa. Satellite images provide a bird’s eye view of a property and can help you get a better understandi. Definition of imaging noun in Oxford Advanced American Dictionary. Aerial shots can be used in the same way that. Quality assurance (QA) aims to improve image quality through systematically recording data, conducting training, reviewing medical images, equipment inventory and maintenance, and more. [1] It provides a color Doppler imaging of the relevant vasculature examined. The single lens with its attachments, or the system of lenses and imaging. pervmom.com Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. It's often used in the context of medical imaging to describe areas within the body that appear dark on an X-ray or other imaging scans. the process of producing an exact picture of something, especially on a computer screen: 2 Learn more. Imaging procedures use different forms of energy, such as x-rays (high-energy radiation), ultrasound (high-energy sound waves), radio waves, and radioactive substances. With OCT, your ophthalmologist can see each of the retina’s distinctive layers. These technologies include magnetic resonance imaging, functional magnetic resonance imaging, computed tomography,. The image contains valuable information about the spatial distribution of the materials within the sample. Editing your images on a desktop image editor might be ideal, but sometimes you're away from your home workstation and need to do some impromptu editing. The GeoEye-1 satellite has high resolution imaging system and is able to collect images with a ground resolution of 0. Three-dimensional imaging is a technique that combines many scans (from computed tomography, MRI or ultrasonography) computationally. Are you looking for free images to use in your blog, website, or other digital content? Creative Commons is a great place to find free images that can be used for commercial and no. 443-997-7237 Maryland. InvestorPlace - Stock Market News, Stock Advice & Trading Tips Sin stocks are shares of companies operating in gambling, tobacco, alcohol, def. Modeling and Simulation in Electro-Optical and Infrared EO/IR Systems (DEF 4007P) In this course, you will develop the techniques of modeling and simulation for modern electro-optical and infrared (EO/IR) systems. If not done right, the evidence may be deemed inadmissible. Based on number of bits per pixel, Table 1. In more recent years radiology has come also to embrace diagnosis by a method. It then uses a computer to create cross-sectional images, also called slices, of the bones, blood vessels and soft tissues inside the body. Numerous measurable indicators and mechanisms. Imaging procedures use different forms of energy, such as x-rays (high-energy radiation), ultrasound (high-energy sound waves), radio waves, and radioactive substances. Digital subtraction angiography (DSA) is a fluoroscopic technique used extensively in interventional radiology for visualizing blood vessels. What Is a Radiologist? Radiologists are medical doctors that specialize in diagnosing and treating injuries and diseases using medical imaging (radiology) procedures (exams/tests) such as X-rays, computed tomography (CT), magnetic resonance imaging (MRI), nuclear medicine, positron emission tomography (PET) and ultrasound. 401(k) withdrawals have rules that, if broken, could come with steep penalties. Imaging definition: a technique in which one uses mental images to control bodily processes and thus ease pain or to succeed in some endeavor that one has visualized in advance See examples of IMAGING used in a sentence.