Fov - Samenvattingen, Aantekeningen en Examens

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...

CT Registry Review (MIC) Questions and Answers Rated 100% In order for an x-ray photon to be measured it must: 1. enter the detector chamber 2. be absorbed by the detector material 3. be converted to a measurable event *ANS* 1,2,3 Which system component converts the projection attenuation data into the proper digital form for the array processor? *ANS* analog-to-digital converter Which of the following is NOT a function of a PACS system? a. reconstruction of the image from the raw d...

LRA 222 Week 1 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: Similar to CR, DR can use the existing diagnostic equipment found in today's imaging departments A. True B. False Answer: B. False Q: Indirect capture DR converts absorbed x-ray energy into visible light A. True B. False Answer: A. True Q: DICOM is a standard that allows imaging modalities and PACS to communicate in the same language A. True B. False Answer: A. ...

LRA 221 Week 1 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Q: DICOM is a standard that allows imaging modalities and PACS to communicate in the same language A. True B. False Answer: A. True Q: Which of the following statements is not true? A. Matrix size can change without affecting the FOV B. FOV can change without affecting the matrix C. Changing the matrix or the FOV will change the size of the pixel D. Changing the matrix and the FOV will not chan...

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Which of the following parameters influences SNR the greatest? A. TR B. Receive bandwidth C. FOV D. NSA correct answersC. FOV Increasing the FOV from 120mm to 240mm will have what effect on SNR? A. SNR decrease by a factor of 2 B. SNR decrease by a factor of 4 C. SNR increases by a factor of 4 D. SNR increases by a factor of 2 correct answersC. SNR increases by a factor of 4 TR is the parameter that represents the time between consecutive: A. Spatial saturation pulses B. Gradient...

ARRT MRI FINAL EXAM (PRINCIPLES OF MRI) ARRT REGISTRY FINAL EXAM WITH ALL 100 QUESTIONS AND CORRECT VERIFIED ANSWERS GRADED A+ (BRAND NEW!!) Which sequence is most INSENSITIVE to magnetic field inhomogeneity? - ANSWER-SPIN ECHO When scanning a patient with chiari malformation, which would be the best imaging plane? - ANSWER-saggital Choose the correct slice thickness to create an isotropic voxel for the following: TR2000 TE 90 matrix 272 x 272 FOV 24cm - ANSWER-Formula: FOV / matr...

RADT 1065 EXAM QUESTIONS WITH ALL CORRECT ANSWERS when processing the PSP plate, the analog signal is digitized and divided into a matrix of squares. Each square is a A) detector element (DEL) B) field of view (FOV) C) picture element (pixel) D) volume element (voxel) - Answer C) picture element (pixel) the useful imaging area of the digital receptor is the A) detector element (DEL) B) field of view (FOV) C) thin-film transistor (TFT) D) values of interest (VOI) - Answer B)...

Which of the following parameter adjustments reduce the overall SNR in an MR image? correct answersA Decrease in TR Reduction in Pixel Size Decrease in FOV Increase (widening) of the receiver Bandwidth Decrease in NEX Increased #ETL ~all reduce SNR ~ Gradient slew rate is the rate of speed of ascent or descent of a gradient from zero to its __________ amplitude correct answers(to its) maximum (amplitude) FORMULA: Calculate the PIXEL area for the following sequence: TR 4000, TE 120, ...

What does projection do? (Cameras) - Correct Answer-Projection toggles the camera's capability to simulate perspective. What does perspective do? (Cameras) - Correct Answer-Camera will render objects with perspective intact. Simulate a real-world view. Scene needs to have depth of field. Commonly used in 3D games. Larger foreground objects block smaller background objects when the camera is straight on and you can't see around corners. What does orthographic do? (Cameras) - Correct Answer-...