3d reconstruction - Samenvattingen, Aantekeningen en Examens

How do you correct for attenuation? - ANS CT AC Map Cs137/Ge68 Transmisson Why is CT better for attenuation correction in PET? - ANS Decrease noise on attenuation map Decrease acquisition time Better anatomic info. How are x-rays produced? - ANS Bremsstrahlung radiation - (braking radiation) A charged particle interacts with an atom by entering the electron shell, slowing down, and changing direction before exiting the electron shell. The atom emits the Brems ...

A biomechanical evaluation of a novel surgical reconstruction technique of the ulnar collateral ligament of the elbow joint questions and answers well illustrated. A Biomechanical Evaluation of a Novel Surgical Reconstruction Technique of the Ulnar Collateral Ligament of the Elbow Joint A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Biomedical Engineering Department of Chemic...

Introduction to Computed Tomography exam CT founded in 1970 by Sir Godfrey Hounsfield who Developed the algorithms for the reconstruction of the images? Allan Cormack Localizer, also called scanogram, topogram, pilot or survey is the 1st C.T image of exam, or scout film Voxel ( 3D tissue element) The basic unit of computed tomography reconstruction, represented as a pixel in a computed tomography image display.

how are PET images produced? - ANSWERrecognizing events created by annihilation reaction of proton rich radionuclides what dose positron decay result in ? - ANSWERproton being converted into a neutron a positron a neutrino and energy what happens when a positron is emitted from the nucleus? - ANSWERtravels a few mm and ionizes many atoms before pairing with an electron and undergoes annihilation interactions which produce a pair of 511 keV photons that travel opposite another at about 180 ...

Angle of impact correct answers The angle formed between the path of a blood drop and the surfave that it contacts Arterial Spray correct answers A characteristic bloodstain patter containing spurts that resulted from blood existing under pressure from an arterial injury( pressure exits from spray) Back Spatter correct answers Blood directed back toward the source of the force that caused the spatter( Blood backed up toward source) Cast Off(cast away) correct answers A bloodstain patter...

SUV - ANS Standard uptake value. based on dose and body weight order of PET/CT - ANS Scout, CT, PET Target isotope for F-18 - ANS O-18 O-15 halflife - ANS 2 minutes N-13 - ANS 10minutes C-11 - ANS 20minutes F-18 - ANS 110minutes Rb-82 - ANS 75seconds HVL for positron - ANS 4.2mm LOR - ANS line of response BGO - ANS highest stopping power NaI(Tl) - ANS hig...

AART MRI Mock Registry - Questions and Answers The difference in chemical shift is approximately ______ parts-per-million. A. 1.5 B. 2.5 C. 3.5 D. 4.5 E. 5.5 During movement or transfer of patients, a urinary collection bag should be placed: A. Below the level of the MR table B. At the foot of the MRI table C. On the stretcher between the patients legs D. Below the level of the urinary bladder The pixel size of the images which result from a 3D acquisition using a 260mm FOV, a 320 x 320 matrix,...

Computed Tomography reviewed exam 2024 The tissue most likely to have a CT number of +800 HU is: Cortical bone Which type of compute tomographic imaging technique is employed to provide 3D reconstruction that demonstrates the relationship between vascular structures and the surrounding organs and tissues? CT angiography When computed tomography is used as part of a therapeutic workup or treatment program, it is important to: Employ the same position during imaging as in the treatme...

CDC Flashcards Questions and Answers 2023 (001) Which enlisted training element is assigned by the supervisor in accordance with (IAW) AFI 36-2201, Classifying Military Personnel (Officer and Enlisted)? Duty Position (001) Which enlisted training element is defined as an integrated bundled of expert knowledge and organizational skills inherent to a particular career field? Core Competency (001) Which 3D Air Force Specialty (AFS) focuses its attention on the administration of ser...

x-rays (1895), ultrasound (1956), CT (1972), MRI (1977), PET (1979), PET/CT & PET/MRI (2009) correct answers In what order where the medical imaging modalities discovered? What year? ultrasonography/sonography correct answers modality that uses high frequency sound waves that are pulsed into body tissues by use of a probe (the sound echos off the tissues it is used to form cross-sectional images) crystals in transducer correct answers device used in ultrasonography that sends and receiv...