What is the relationship between noise and SID? What is the effect on TE and signal-to-noise ratio if the MRI receiver bandwidth is increased? 0.15microCi of Mo per 1milli Tc (measured via photopeak breakthrough). keV = 100 (need higher ave energy than with iodine despite similar k-edge to ensure adequate penetration with barium). Our online xray trivia quizzes can be adapted to suit your requirements for taking some of the top xray quizzes. For how many years must calibration records of dose calibrators be kept? Increasing MRI receiver bandwidth results in a decrease TE and decreased signal-to-noise ratio. What is the activity limit for a Radiation area in Nucs? What is the primary energy transfer method of heat dissipation by the Anode? What is the best keV to maximize iodine contrast? Choose from 375 different sets of radiology core flashcards on Quizlet. Not advanced. Cystic form. What is the relationship between dose and spatial resolution with pixel binning? Core radiology exam boards board radiology gi gastrointestinal flash cards flashcards flashcard Learn with flashcards, games, and more — for free. 1 degree Celsius in adults and 0.5 degrees Celsius in infants. Photoelectric effect dominates Compton scatter at lower energies (20-30 KeV), and higher Z materials are much more likely to have photoelectric effect (Z^2)3. EOA=+o/+e. Larmor frequency of H+ protons at 1T = 42MHz. What is the radiochemical purity limit for free Tc? Increasing the dynamic range on ultrasound will decrease image contrast. Top Radiology Flashcards Ranked by Quality Med - Radiology Med - Radiology Flashcard Maker: Languages . How does mA, kVp, and focal spot differ in Fluoro relative to DR? What is the relationship between energy and atomic number (Z) to the photoelectric effect? Ave energy is 1/2 to 1/3 of the max energy (kVp). Free flashcards to help memorize facts about CORE Radiology. What is the skin dose resulting in Moist Desquamation (ulceration)? Then click the card to flip it. To effectively tilt the magnetic moment of H+ protons, the RF pulse must equal the Larmor frequency, which is directly proportional to magnetic field strength. to differentiate from pyogenic abscess, look for restricted diffusion internally in an abscess. What is the ideal flow velocity through a Tips shunt? What is the energy and physical half life of Iodine-131? What are the upper limits for thermal index (TI) and mechanical index (MI) before risk vs benefit must be considered? How much energy is needed for a positron reaction to occur? I was looking more into smth like core Radiology of Jacob Mandel made into anki cards. When filling K space during single spin echo imaging, what is the role of frequency encoding steps and phase encoding steps? What is the effect on SAR when you move from 90 to 45 degrees flip angle? What is the relationship between Detective Quantum Efficiency (DQE) and dose, MTF, SNR, and spatial resolution? What is the equation for image resolution in line pairs per millimeter when given the full width half maximum (FWHM)? How often is Energy Window of a gamma camera checked? What is the relationship between max energy (kVp) and average energy to maximize imaging of a contrast agent? A GBM will not show restricted diffusion internally. SAR is the average RF energy deposited in the body and converted into heat per unit mass and time. What activity of In-111 is considered a major spill? Kind of the same … Flash cards covering the combining forms that will be introduced when discussing Radiology and Nuclear Medicine with Anatomy or Health Science students. In its various forms, radiography has been a vital part of modern medicine since its invention allowing us to look deep inside the body and see broken bones, ulcers, benign and cancerous tumors. We've got that in our adaptive radiology flashcards. 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Plain film radiography uses higher power (100kW) than mammography (3kW). What is the energy and physical half life of Indium-111? Learn radiology core with free interactive flashcards. BICD 110 Midterm - Biology 100 with Reuther at University of California - San Diego - StudyBlue Flashcards Is it better to increase mA or kVp to decrease noise (noise = quantum mottle + scatter)? What type of radiation detector is used in dose calibrators? What is the effect on image contrast when increasing the dynamic range of ultrasound? This is a radionuclide impurity checked with the dose calibrator. Phase encoding is done in the other shorter matrix dimension and dictates the number of repetitions needed to fill the remainder of the matrix. Sampling of the echo occurs during the frequency encoding steps and the number of samples per TR is dictated by one dimension of the matrix (typically the larger dimension because this can be done quickly). 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