Note that decreasing FOV alone will still increase spatial resolution but with decreased contrast resolution (because of increased noise). What MSD size w/o a visible embryo is diagnostic for fetal demise? How would you change mA and kVp to better visualization low contrast tissue? Other activities to help include hangman, crossword, word scramble, games, matching, quizes, and tests. The Core is the closest resource that comes close to First Aid for USMLE. Doubling mA will double the signal but only increase noise by 1.4 (square root of 2 = 1.4). Study Flashcards On Radiology at Cram.com. Learn Clinical Radiology . An authorized user can give a patient a radioactive material without their consent if their life is in danger, but how long after administration does the authorizes user have to complete the written directive? What is the wrong dose limit for a radiopharmeceutical medical event? 95% Na-Tc99m-O4, 92% Tc99m-MAA, 91% for all other Tc99m (measured via Thin Layer Chromatography). 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. What is the annual equivalent extremity dose limit for occupational exposure? What is the relationship between bits and shades of gray? What is the maximum concentration of aluminum ion breakthrough allowed by the NRC in a technetium 99m generator? What are the Mammogram Training Requirements? The frequency encoding gradient is applied during echo read out at time TE. Note that the entire time needed to acquire the images = #repetitions x TR. BICD 110 Midterm - Biology 100 with Reuther at University of California - San Diego - StudyBlue Flashcards Extrinsic (w collimator) is daily, intrinsic (crystal only) is weekly. Study 27 Core Radiology MSK Part 1 flashcards on StudyBlue. What is the relationship between dose and spatial resolution to FOV? T2 (spin-spin relaxation) time = time to dephase 63% of protons (loss of transverse magnetization) due to proton-proton interactions. How much contrast do you inject into the glenohumeral joint? Otherwise, click the red Don't know box. Signal to noise ratio decreases because increasing the bandwidth results in increased noise. Then click the card to flip it. Other activities to help include hangman, crossword, word scramble, games, matching, quizes, and tests. What is the skin dose resulting in Secondary Ulceration? Blank PET Scan = Daily (start with a blank slate). Consistency checked daily (against a known source, must be within 5%). What activity of In-111 is considered a major spill? 3510 Dunhill Street San Diego, CA 921218 58-822-4404. Although, … CORE Orthopaedic Medical Center 332 Santa Fe Drive Suite 110 Encinitas, CA 92024 760-943-6700 What is the skin dose resulting in Moist Desquamation (ulceration)? What is the energy and physical half life of Tc-99m? Plain film radiography uses higher power (100kW) than mammography (3kW). When is the frequency encoding gradient applied in spin echo imaging? Our comprehensive ARRT Certification Exam prep question bank is fully up-to-date and includes over 1,200 questions with detailed answer feedback. What is the equation for image resolution in line pairs per millimeter when given the full width half maximum (FWHM)? Normal (>2cm), mild (>1.5cm), moderate (1.5-1.0cm), severe (1.0-0.7cm), critical (>0.7cm). Foot,Ankle,Leg (40 cards) 2019-04-30 14 . Ave energy is 1/2 to 1/3 of the max energy (kVp). 2,052 Cards – 12 Decks – 3 Learners Radiography is an imaging technique used to provide internal images of the bones, organs, tissues, and vessels. What is the affect on exposure time if the focal spot becomes smaller? That book is great is disease oriented (rather than modality oriented) And from there we could then add some other basic points that are missing. What is the recommended #cancers/1000 screened? 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 time limit for surveying Nucs packages? How long must mammography centers keep patient records? What is the relationship between collimation to quantum noise and mA? What is the whole body dose limit for a recordable event in Nucs? Flashcard Content Overview. Basic radiology study app for medical students. Free flashcards to help memorize facts about CORE Radiology. 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. Gravitational < weak < electrostatic < strong. What is the energy and physical half life of Gallium-67? What is the relationship between Detective Quantum Efficiency (DQE) and dose, MTF, SNR, and spatial resolution? Surface dose rate < 50mrem/hr, exposure at 1m < 1mrem/hr. Radiology Flashcards. Look at the large card and try to recall what is on the other side. Program Description. SAR is the average RF energy deposited in the body and converted into heat per unit mass and time. 1 degree Celsius in adults and 0.5 degrees Celsius in infants. Leakage radiation from x-ray house measured at 1m must not exceed what level? , tissues, and other study tools in ( a ) surface does limit and ( b )?! Of Mo per 1milli Tc ( measured via photopeak breakthrough ) echo planar due to rapid of. Have cleared NEET recently flashcards are added to the general population know box, click `` ''. Dose to maintain SNR but can increase spatial resolution of screen film mammography that in. 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