Quickly memorize the terms, phrases and much more. What is the reference CTDI vol dose for abdominal CT? 95% Na-Tc99m-O4, 92% Tc99m-MAA, 91% for all other Tc99m (measured via Thin Layer Chromatography). Gravitational < weak < electrostatic < strong. What is the effect on TE and signal-to-noise ratio if the MRI receiver bandwidth is increased? CORE Orthopaedic Medical Center 332 Santa Fe Drive Suite 110 Encinitas, CA 92024 760-943-6700 If they move, this distinguishes them f…, The gallbladder is completely filled with stones, or one giant…, 1) Gallstone (mobile, exhibits shadowing)... 2) Gallbladder sludg…, - CD4 < 100... - wide range of appearances…, - CD4 < 200... - bilateral perihilar groun…, 1) anterior pararenal space: ascending and descending colon, 2…, a diverse group of neoplasms that make up the most common retr…, Describe SNAC wrist (scaphoid non-union advanced collapse). Increased kVp results in a decreased linear attenuation coefficient and an increase in the half value layer needed to attenuate 50% of the x-ray beam. What is the relationship between dose and spatial resolution with pixel binning? What is the energy and physical half life of Xenon-133? Increased collimation reduces scatter but requires an increased mAs to compensate for less #photons at the image receptor (increase quantum noise). What is the annual equivalent extremity dose limit for occupational exposure? How often is Image Linearity and Spatial Resolution of a gamma camera checked? Start studying Radiology CORE exam. What is the reference CTDI vol dose for pediatric abdominal CT? What is the whole body dose limit for a recordable event in Nucs? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Quickly memorize the terms, phrases and much more. Leakage radiation from x-ray house measured at 1m must not exceed what level? Cram.com makes it easy to get the grade you want! for the next century, blues would become the underground _____ that would feed all streams of popular music, including jazz. Increased proportion of parallel to antiparallel spins relative to the main magnetic field (B0). What is the NRC dose limit for an unrestricted area (secretary space)? I found the clang associations for Step exams super useful, but imagine creating a 15,000 card deck from scratch would be time consuming. Choose from 375 different sets of radiology core flashcards on Quizlet. Mark. What is the relationship between Detective Quantum Efficiency (DQE) and dose, MTF, SNR, and spatial resolution? Study Flashcards On Core Radiology 10/28/07 at Cram.com. Quality control testing of stereotactic breast biopsy systems are performed at the time of installation and then annually. What is the chemical purity limit for Al per 1mL Tc? What MSD size w/o a visible embryo is diagnostic for fetal demise? What are the upper limits for thermal index (TI) and mechanical index (MI) before risk vs benefit must be considered? What dictates lateral resolution (two adjacent structures, perpendicular to the beam) in ultrasound? Through the revolutionary Board Buster video series and high yield Crack the Core books, Master educator, Prometheus Lionhart MD, will mold your mind into an unstoppable wrecking ball of radiology knowledge. What is the wrong dose limit for a radiopharmeceutical medical event? Study. Books: Core Radiology is fantastic. This also explains why higher frequency probes have improved axial resolution but poor penetration. Study Flashcards On Radiology at Cram.com. beta-version (free) Read. TI > 1.0 (heat risk), MI > 0.5 (cavitation risk). MSK - Arthritis Matching!. What is the main determinant of CT hounsfield units? The frequency encoding gradient is applied during echo read out at time TE. >0.15 microCi molybdenum per 1.0 millicurie tech99m. To unlock this flashcard set you must be a Study.com Member. How often is Linearity of dose calibrator (Ion Chamber) checked? Practice with multiple choice questions and flashcards containing labelled images . Consistency checked daily (against a known source, must be within 5%). Radiology Flashcards. A GBM will not show restricted diffusion internally. Either decrease Doppler shift (lower frequency transducer or increase Doppler angle) or increase pulse repetition frequency (Nyquist limit = PRF/2). I was looking more into smth like core Radiology of Jacob Mandel made into anki cards. Topics include: CMC with and without erosions/osteophytes - OA=+osteophytes/-erosions. How often is Accuracy of dose calibrator (Ion Chamber) checked? Equipment Hourly Rates What is the relationship between increasing x-ray flux (mA) and SNR? Normalization in PET done Monthly ("normal month"). How does the latitude of mammographic screen film systems compare to general radiography? What are the typical TR and TE cutoffs for T1 weighted imaging? What is the best keV to maximize iodine contrast? Use these flashcards to help memorize information. If you knew the answer, click the green Know box. What is normal air kerma limit in fluoroscopy? Study 228 BICD 110 Midterm flashcards from Elli M. on StudyBlue. What is the ideal frequency of the RF pulse at 1T, 1.5T, and 3T? Increasing mA will improve noise more than increased kVp because higher kVp also results in more Compton scatter. Quickly memorize the terms, phrases and much more. Geometry checked annually (at at installlation). What is the incident photon energy where there is an equal balance of Compton and photoelectric interactions in soft tissues? What is the skin dose resulting in Secondary Ulceration? Increased mA results in "blooming" of focal spot, but increased kVp results in focal spot "thinning". Binning detector elements reduces dose (higher SNR) but also reduces spatial resolution. Note 180 degree pulses need twice the SAR of a 90 degree pulse. What is the primary source of patient heating in MRI? Decreasing "spatial pulse length" (spl) improves US axial resolution. How much energy is needed for a positron reaction to occur? How much do you have to decrease photons to double quantum mottle? How much contrast you inject into the radiocarpal joint? Kind of the same … degree program prepares practitioners (radiologic technologists) to work with patients and physicians, performing a wide variety of diagnostic imaging procedures within the radiology (X-ray) department. How much contrast you inject into the tibiotalar joint? Study 27 Core Radiology MSK Part 1 flashcards on StudyBlue. Look at the large card and try to recall what is on the other side. How often is Geometry of dose calibrator (Ion Chamber) checked? Since the SPL is constant at a given wavelength, the best way to decrease SPL is to shorten the wavelength by increasing the pulse frequency. What is the NRC annual occupational dose limit in total effective dose equivalents for a worker under 18 years of age. How often is the Blank Scan in PET checked? What are the valve area values for grading aortic stenosis? What is the maximum concentration of aluminum ion breakthrough allowed by the NRC in a technetium 99m generator? What is the energy and physical half life of Fluorine-18? What activity of In-111 is considered a major spill? 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. What type of atomic electrons interact with the incident photons during Compton scatter? 10 micrograms of aluminum per mL of technetium 99m (10 ppm of aluminum ion). Soft tissue uses a smooth kernel (low noise, lower spatial resolution), Bone uses a sharp kernel (higher spatial resolution, higher noise). What is the spatial resolution of computer tomography? What is the primary energy transfer method of heat dissipation by the Anode? What is the Mean Glandular Dose limit for a breast phantom? What is the relationship between magnification and SOD to Blur? What activity of Ga-67 is considered a major spill? RadTechBootCamp is the most powerful solution for those preparing for the American Registry of Radiologic Technologists (ARRT) Certification Exam! What activity of Tc-99m is considered a major spill? Normal (>2cm), mild (>1.5cm), moderate (1.5-1.0cm), severe (1.0-0.7cm), critical (>0.7cm). TE decreases because a higher bandwidth has a higher amplitude readout gradient which allows for faster sampling of the MR signal. It's an easy read with a lot of images and this is where I would start if I were just now beginning to study. This set of flashcards will cover content associated with the skin and conditions that can happen to the skin that may need to be looked at by a dermatologist. We've got that in our adaptive radiology flashcards. When filling K space during single spin echo imaging, what is the role of frequency encoding steps and phase encoding steps? Xe-133 = 81Kev, 125hours (note: biological T1/2 = 30seconds). Our online xray trivia quizzes can be adapted to suit your requirements for taking some of the top xray quizzes. Increase mA, keep kVp constant (or reduce it to further improve contrast). What is the annual whole body dose limit for occupational exposure? What dictates axial resolution (depth, parallel to beam) in ultrasound? 1 degree Celsius in adults and 0.5 degrees Celsius in infants. In other words, you want the kVp set to at least twice the binding energy of the contrast agent being used (Iodine K edge 33 keV so use 66kVp, Barium is higher at 37keV so use 74kVp). What is the 9 month fetal dose limit for occupational exposure? A comprehensive database of more than 18 xray quizzes online, test your knowledge with xray quiz questions. keV = 70 (ave energy will be around k-edge of iodine = 35). In nuclear medicine renal studies, what time post radiotracer injection is considered the "cortical phase" of imaging? What is the relationship between max energy (kVp) and average energy to maximize imaging of a contrast agent? What is the relationship between modulation transfer function (MTF), spatial resolution, and the Nyquist frequency? Memorize what you just learned taking advantage of spaced-repetition learning, filtering what you know from … Both Compton scatter and photoelectric interaction are inversely proportional to the energy of the incident x-ray photons. Free flashcards to help memorize facts about Limited Scope X-Ray Operator for MN Core Module. Plain film radiography uses higher power (100kW) than mammography (3kW). Describe the air gap method used in mammography? Fat is very bright on T1, therefore it has a short T1 time, which also means that it recovers it's longitudinal magnetization the fastest. Research Core Services Page Content UC San Diego state-of-the-art imaging resources are available to researchers for pre-clinical and clinical trials at x number of locations in San Diego. MTF is a measure of spatial resolution, which equals half the Nyquist frequency. What is the relationship between dose and spatial resolution to FOV? What is the spatial resolution of screen film mammography? What is the relationship between bits and shades of gray? ... Radiology Core Flashcard Maker: Kaleen Burton. What is the minimum Spatial Resolution required for screen-film mammography? ASTR101 Final - Astronomy 101 with Leonard at California State University - San Diego State University - StudyBlue Flashcards EPI = echo planar due to rapid switching of gradient pulses. What is the maximum concentration of molybdenum breakthrough allowed by the NRC in a technetium 99m solution at the time of administration? What is the annual lens dose limit for occupational exposure? Ave energy is 1/2 to 1/3 of the max energy (kVp). Note that "STIR" actually stands for "short tau inversion recovery.". Linearity checked quarterly (against varying activities of Tc99m). What is the activity limit for a Radiation area in Nucs? Not advanced. What is the affect on exposure time if the focal spot becomes smaller? So if there are two metallic rings, the larger is the…, Gallstones are mobile. Learn radiology core with free interactive flashcards. Accuracy checked annually (and at installation). CTDI vol = (1/3 central CTDI + 2/3 peripheral CTDI)/Pitch. What is the energy and physical half life of Indium-111? What is the skin dose resulting in Early Transient Erythema? This is a chemical impurity checked with colorimetric indicator paper. Study Flashcards On Core Radiology at Cram.com. Mag increases blur, Decreased SOD also increases blur (note: mag also increases with decreased source to object distance via SID/SOD). What is the relationship of tube voltage on Compton scatter and photoelectric interaction when the energy of the incident x-ray photons is above the k-edge of the material being imaged? According to BEIR VII, cancer incidence increases by how much (% per rad). Radiology Simplified (Apple Books) is the most accurate review of Core-relevant radiology physics anywhere. Feel absorbed dose over 50 mGy during the 2nd to 15 week of gestation. Description Date Stars ... CT flash cards (152 cards) 2020-09-20 14 . Radiology quizzes; Radiology flashcards ; Video podcasts from Learning Radiology; Radiology Museum depicting important events in Radiology history like Roentgen’s journey of discovering X-rays. 2,052 Cards – 12 Decks – 3 Learners radiation protection (68 cards) 2020-05-24 14 . Note that decreasing FOV alone will still increase spatial resolution but with decreased contrast resolution (because of increased noise). Exposure time increases with a smaller focal spot, which increases the chance of motion/blur, as in mag views for calcs. Regulations require the diagnostic radiography units operating at tube potential above 70 kVp must contain a total filtration of at least 2.5 mm of aluminum equivalent. What is the activity limit for a Very High Radiation area in Nucs? What is the effect on image contrast when increasing the dynamic range of ultrasound? What is the equation for image resolution in line pairs per millimeter when given the full width half maximum (FWHM)? Radiology Core Flashcard Maker: Kaleen Burton. What is the radiochemical purity limit for free Tc? I made a lot of flashcards directly from this book. Then click the card to flip it. Basic radiology study app for medical students. Larmor frequency of H+ protons at 1T = 42MHz. Radiology books for entrance exams like NEET/AIIMS / PGI. Radiology Flashcards for the Core. Cram.com makes it easy to get the grade you want! What is the typical entrance exposure rate (entrance air kerma) in radiography, fluoroscopy, and IR? What is the skin dose resulting in Moist Desquamation (ulceration)? What type of radiation detector is used in dose calibrators? Compton scatter interactions involve incident photons and outer shell atomic electrons. How often is the Normalization Scan in PET checked? Radiography (3mGy), fluoroscopy (30mGy/min), and IR (300mGy/min). In spin echo imaging, which gradient is changed with every repetition (TR)? What are the Mammogram Training Requirements? T2 (spin-spin relaxation) time = time to dephase 63% of protons (loss of transverse magnetization) due to proton-proton interactions. How often is Consistency of dose calibrator (Ion Chamber) checked? Free flashcards to help memorize facts about BMO Review- Core. Foot,Ankle,Leg (40 cards) 2019-04-30 14 . Core radiology exam boards board radiology gi gastrointestinal flash cards flashcards flashcard Learn with flashcards, games, and more — for free. Within 3 hrs of receipt = survey (GM counter at surface and 1 meter) + wipe test (well counter) to make sure within allowable limits (white 1, yellow 2, yellow 3). 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. What is the minimum energy for ionizing radiation? What's is the equation for the energy (E) of a photon of electromagnetic radiation using Plank's constant (h), speed of light (c), frequency (f), and wavelengths (L)? What is a technical measure of an image system's ability to show contrast across a range of spatial frequencies? What is the radionuclide purity limit for Mo per 1milli Tc? What is the energy and physical half life of Thallium-201? Study 169 ASTR101 Final flashcards from McKenna W. on StudyBlue. What is the energy and physical half life of Iodine-123? Increased flip angle will increase T1 weighting. What are the typical TR and TE cutoffs for T2 weighted imaging? What is the skin dose resulting in Telangiectasia? What is the interval for Accreditation and Certification for mammography centers? What is the relationship between noise and SID? What is the (a) surface does limit and (b) exposure limit at 1 m for "white 1" packages ? Note that its takes 4x mA to double SNR (4/ sq rt 4 = 4/2 = 2). Surface dose rate < 50mrem/hr, exposure at 1m < 1mrem/hr. What is the single organ dose limit for a recordable event in Nucs? Same as the annual occupational exposure dose (5rem = 50mSv). 1Ml Tc DQE ) and mechanical index ( MI ) before risk vs benefit must be considered under years. Mechanical index ( TI ) occupational organ dose limit to the study queue required for mammography! Exams in 6 months, 3 months of training, 60 hrs mams. 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