Magnetic susceptibility - Study guides, Class notes & Summaries

TEST BANK ESSENTIALS OF PATHOPHYSIOLOGY (4TH EDITION BY PORTH) CONTENTS Chapter 01 - Cell Structure and Function .......................................................................................................................... 2 Chapter 02 - Cellular Responses to Stress, Injury, and Aging .......................................................................................... 7 Chapter 03 - Inflammation, the Inflammatory Response, and Fever ..............................................

ARRT MRI Exam 2024 with 100% correct answers If a brain exam is being performed and the request is made to rule out acoustic neuroma, a protocol with thin cuts through the _________ should be performed. Inner auditory canals The _____________ imaging plane would be the most optimal slice orientation for evaluation of Arnold Chiari Malformation and its inferior cerebellar tonsillar herniation. sagittal A FLAIR sequence with a long TI is utilized to: null the signal from CSF If a ...

Iron filings Correct Answer-Magnetic particle inspection uses small ferromagnetic particles similar to: A magnetic field Correct Answer-A volume of space where there is a change in magnetic energy is called: Ferromagnetic materials Correct Answer-Which of the following has a large susceptibility to magnetic field? Iron, nickel, cobalt Correct Answer-Magnetic particle inspection can be performed on parts made from which materials? A magnetic pole Correct Answer-A location where a magn...

RADIOFREQUENCY (RF) - ELECTROMAGNETIC RADIATION LOWER IN ENERGY THAN INFRARED. THE RF USED IN MRI IS IN THE FORM OF A BURST OF RF ENERGY (PULSE) I THE 10 MHZ TO 100MHZ RANGE RF PULS, DELIVERED TO THE PATIENT BY RF TRANSMITTER. THE RF FREQUENCY, AT THE LARMOR FREQUENCY, RESULTS IN ROTATION OF THE NET MAGNETIZATION VECTRO AND PHASE COHERENCE OF THE NUCLEAR SPINS. AN RF COIL IS USED FOR TRANSMITTING AND RECEIVING MRI SIGNALS (RF). FRINGE FIELDS - WEAKER MAGNETIC FIELDS THAT ARE AWAY FROM THE I...

Gleim Private Pilot FAA Knowledge Test Guide Gleim Private Pilot FAA Knowledge Test Guide What is one purpose of wing flaps? To enable the pilot to make steeper approaches to a landing without increasing the airspeed. One of the main functions of flaps during approach and landing is to: Increase the angle of descent without increasing the airspeed. What is the purpose of the rudder on an airplane? To control yaw. Which is not a primary flight control surface? A. Flaps B. Stabilat...

Magnetic susceptibility artifacts are more prominent with _____________ sequences. A. Inversion recovery B. Spin echo C. Gradient echo D. Fast spin echo correct answersC (gradient echo) A remedy for a Gibbs truncation artifact would be: A. Increase the field of view B. Reduce the number of phase encodings C. Increase the number of phase encodings D. Decrease the TE correct answersC (Increase the number of phase encodings) The largest ventricle in the heart is the: A. Right ven...

ATOMS - FUNDAMENTAL SUBMICROSCOPIC UNIT OF ALL MASS. SIZE OF THE ATOM AND ITS WEIGHT HAVE INTERESTED SCIENTISTS FOR A LONG PERIOD. SUBSEQUENTLY, EXPERIMENTS WERE DEVISED TO DETERMINE THE SIZE AND WEIGHT OF THE VARIOUS ATOMS. THE LIGHTEST OF ALL ATOMS IS HYDROGEN. PROTON - A SUBATOMIC PARTICLE HAVING A POSITVIE CHARGE IDENTICAL IN MAGNITUDE TO THE NEGATIVE CHARGE OF AN ELECTRON AND, TOGETHER WITH THE NEUTRON, A COMPONENT OF ALL ATOMIC NUCLEI. THE PROTON FORMS, BY ITSLEF, THE NUCLEUS OF THE ...

RMRIT STUDY GUIDE PACKET WITH COMPLETE SOLUTIONS ATOMS - Ans ️️ -FUNDAMENTAL SUBMICROSCOPIC UNIT OF ALL MASS. SIZE OF THE ATOM AND ITS WEIGHT HAVE INTERESTED SCIENTISTS FOR A LONG PERIOD. SUBSEQUENTLY, EXPERIMENTS WERE DEVISED TO DETERMINE THE SIZE AND WEIGHT OF THE VARIOUS ATOMS. THE LIGHTEST OF ALL ATOMS IS HYDROGEN. PROTON - Ans ️️ -A SUBATOMIC PARTICLE HAVING A POSITVIE CHARGE IDENTICAL IN MAGNITUDE TO THE NEGATIVE CHARGE OF AN ELECTRON AND, TOGETHER WITH THE NEUTRON, A COMPO...

An RF pulse of what flip angle will maximize the component of the net magnetization projected into the transverse plane? a. 180 b. 120 c. 90 d. 45 c. T1 relaxation refers to ____ relaxation. a. spin-spin b. longitudinal c. phase d. transverse b. Which of the following statements is false? a. T1 relaxation refers to longitudinal recovery of magnetization while T2 relaxation refers to the transverse decay of magnetization b. T1 relaxation and T2 relaxation occur sim...

breast self examination (BSE) - Answer Start in the 20's 5-7 (maybe 10) days after menstruation 1. Supine position 2. RT arm behind head 3. Opposite hand - pads of 3 middle fingers 4. Dime-sized circular motions Light, medium, & firm pressure Repeat step 4, Up and down Pressing down on hips contracts chest muscles and enhances breast changes Mammography Screening - Answer X-ray of the breast tissue to detect abnormal growths Screening tool MRI (magnetic resonanc...

Formula for temperature change in a patient -:- dTp/dt = SAR/C, where C = 4186 J/kg, Tp = temperature How much does liquid helium expand when transitioning to gaseous helium? -:- >700x Electric field density (JE) formula -:- JE = Conductivity x electric field strength x B0 x V where V = velocity? What is the most accurate way to measure energy dose to the patient? -:- B1 + rms Kinetic stability -:- The rate at which a gadolinium agent dissociates Thermodynamic stability -:- t...