Radiography
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| show | Actual Focal Spot
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| show | Anechoic
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| Loss of intensity of the ultrasound beam as it travels through tissue, caused by absorption of scatter. | show 🗑
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| show | Axial Resolution
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| show | Beta Ray
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| show | Complimentary Metal-oxide Semiconductor (CMOS)
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| show | Computed Tomography (CT)
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| show | Contrast Media
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| show | Cystic Lesion
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| Processing chemical that changes the sensitized silver halide crystals into black metallic silver. | show 🗑
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| Tissue that produces enough echoes when it is returned to the transducer and displayed. | show 🗑
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| When current is applied to the cathode filament. | show 🗑
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| Process by which an electron is moved to a higher energy level within the atom. | show 🗑
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| Coiled wire of the cathode that emits the electron beam. | show 🗑
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| show | Fixer
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| show | Collimation
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| Images taken in constant real time. | show 🗑
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| Distance from the focal spot to the recording surface. | show 🗑
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| show | Focusing Cup
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| Radiographic effect occuring when the object is not parallel to the recording surface. This causes distortion of the size and length of the object. | show 🗑
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| show | Frequency
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| Series of thin linear strips made of alternating radiopaque and radiolucent interspaces. | show 🗑
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| show | Heel Effect
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| show | Hyperechoic
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| show | Hypoechoic
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| Process of transferring sufficient energy to the atom so that the outer electron is removed; The atom becomes positively charghed. | show 🗑
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| show | Isoechoic
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| Also refered to as an excretory urogram. | show 🗑
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| Device that produces a rectangule-shaped image; Useful when imaging areas with an unrestricted acoustic window. (e.g. equine tendons) | show 🗑
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| Type of alternative imaging in which the patient is placed in a magnetic field and radiofrequency signals are transmitted, received and constructed into detailed cross-sectional images. | show 🗑
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| A substance that is low in atomin number and appears radiolucent in the radiograph. | show 🗑
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| show | Nuclear Medicine
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| show | Nuclear Scintigraphy
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| show | Peizoelectric Effect
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| Loss of detail due to geometric unsharpness. | show 🗑
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| show | Photon Emission Tomography (PET)
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| show | Positive Contrast
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| A device that sets the grid in motion, blurring the white lines on the finished radiograph that are produced by the grid. | show 🗑
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| Term referring to the average energy of the x-ray beam or its penetrating ability (kVp). | show 🗑
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| show | Quanta
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| show | Quantity
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| show | Quantum Mottle
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| show | Radiodense
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| How well the shadows on the radiograph are clearly identified. | show 🗑
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| show | Radionucleotide
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| Process of changing alternating current to current flowing in one direction only (Direct current). | show 🗑
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| Primary radiation emitted from the x-ray tube. | show 🗑
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| Unit of measurement of the absorbed dose of ionizing radiation. | show 🗑
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| show | Secondary Radiation
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| show | Sector Scanner
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| The unit of radiation dose equivalent to the absorbed dose in tissue. | show 🗑
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| Describes the tissue that transmits most of the sound to deeper tissues, with only a few waves being reflected back to the transducer; Appears dark on the monitor. | show 🗑
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| Part of the x-ray tube that consists of a block of tungsten embedded into a block of copper on the anode side of the tube. | show 🗑
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| show | Structure Mottle
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| show | Subject Contrast
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| show | Thermoluminescent Dosimeter
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| show | Time Gain Compensation
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| Situation in which the positive potential (voltage) between the cathode and anode is insufficient to pull all electrons across the tube. Extra electrons build up on the glass envelope, causing it to crack. | show 🗑
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| show | Velocity
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| Distance of one complete waveform. With ultrasound, it is the distance from one band of compression or rarefaction to the next. | show 🗑
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