Spatial resolution is - Study guides, Class notes & Summaries

Nuclear Medicine Instrumentation Exam Questions with 100% Correct Answers The amount of light generated by a sodium iodide crystal is directly related to the: A. photon energy absorbed in the crystal B. Diameter of the crystal C. Thickness of the crystal D. Age of the crystal - answerA. photon energy absorbed in the crystal A NaI (Tl) scintillation detector provides an output signal from the photo-multiplier tube that is proportional in amplitude to the amount of energy absorbed in the c...

LRA 222 Week 2 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: Each light photon is assigned a number during A. amplification B. sampling C. digitization D. laser scanning Answer: C. digitization Q: The wavelength of the PSP reader laser is ______ nm A. 336 B. 636 C. 633 D. 366 Answer: C. 633 Q: The laser scans the imaging plate in a ______ pattern A. raster B. horizontal C. circular D. random Answer: A. raster ...

LMRT STATE REVIEW REAL ESTATE EXAM QUESTIONS AND ANSWERS Which of the following will result in an image with excessive distortion of anatomic structures? A.) Improper central ray angulation for the selected radiographic projection B.) use of an 8:1 grid with the mAs set for a 12:1 grid C.) IR exposure at an SID greater than recommended for a particular body part. D.) IR exposure with the mAs higher than needed for the particular anatomic structures. - Answer-Improper central ray angulati...

Bennett Test 3 Questions & Answers 2024 medical image quality - ANSWER-refers to the fidelity with which the anatomy under investigation is rendered on the image receptor Spatial Resolution - ANSWER-the ability to the image small objects that have high subject contrast, such as a bone - soft tissue interface, a breast microcalcification, or a calcified lung nodule improves; smaller - ANSWER-spatial resolution ___ with ___ pixel size contrast resolution - ANSWER-the ability to disti...

Low photon energy and high atomic number Combination of photon energy & tissue atomic # results in the highest probability of PE effect *Low photon energy and low atomic number *Low photon energy and high atomic number *High photon energy and low atomic number *High photon energy and high atomic number Step down voltage and step up current How does the filament transformer of the x-ray machine change the shape of electrical power? *Step up voltage and step down current *Step down ...

What is the job of cogsci? bringing perspectives from neuro, psych, CS, phil, lang, and anthro together what method do philosophers use? argument and analysis/ deductive reasoning what methods do psychologists use? experimental techniques and paradigms what methods do neuroscientists use? spacial/temporal resolution, case studies, lesions, brain imaging what methods do cognitive psychologists use? modeling what methods do AI researchers use? computer mode...

Questions -- Image production (CT Bootcamp) -- Image Display Questions and Answers Rated A+ What is a pixel? A pixel is a single picture element within the digital image. Calculate the pixel size for a scan of the abdomen using a 40 cm DFOV and a 1024 x 1024 matrix. 0.039 cm or 0.39 mm 40/1024= 0.039 In the table below, indicate how the listed technical changes affect spatial resolution. Technical change --> Change in Spatial Resolution 1) Increased pixel size --> 2) Decreased matrix...

ARMRIT Exam 2 |Revised Study Guide| Graded A+ 2DFT *Ans* When selecting only one slice at a time during a pulse sequence, which method for providing spatial localization is employed? Higher relaxation rates *Ans* Tissues that have low (short) relaxation times have: Increase resolution *Ans* For the following spin-echo protocol: FOV: 320 / TR: 500 / TE: 25 / SliceThick: 5mm / Slice Gap: 1mm/ Slice#: 9 / NEX: 4 / Matrix: 192 -- Increasing Matrix will: Toxicity *Ans* Combining a metal io...

Mosby CT Registry Review Updated With 500+ Questions with 100% Correct and Verified Answers What is the smallest component of a digital image - ANS: pixel How many CT numbers are assigned to each pixel in the image matrix? - ANS: One In a CT image, the CT number - ANS: Of a material is dependent on its linear attenuation coefficient Each two-dimensional square of data that make up the CT image is called a - ANS: pixel What is an element of the digital image - ANS: pixel Which of ...

Mosby CT Registry Review Latest Update With 500+ Exam Questions with Verified Answers-What is the smallest component of a digital image - pixel How many CT numbers are assigned to each pixel in the image matrix? - One In a CT image, the CT number - Of a material is dependent on its linear attenuation coefficient Each two-dimensional square of data that make up the CT image is called a - pixel What is an element of the digital image - pixel Which of the following influences the spa...