Inhomogeneity - Study guides, Class notes & Summaries

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...

3D gradient echo axial views can be used in cervical spine imaging to provide - Thin, contiguous sections of the spine, the ability to reformat into any other imaging plane, retrospectively, the ability to get either T1, spin density or T2* information by changing parameters. In complete spine imaging, to rule out metastatic lesions of the spinal cord, contrast enhancement can be used with T1 weighted images because - metastatic lesions enhance and normal cord does not Due to the difference...

What are the 2 factors that affect image contrast in diagnostic imaging? - correct answer Intrinsic contrast parameters: are those that cannot be changed because they are inherent to the body's tissues. Ex) Bone density Extrinsic contrast parameters: are those that can be changed because they are under our control. Ex) TR What are examples of intrinsic factors? - correct answer T1 recovery time ...

Principal Of real Estate 1 Final Exam One who is given a power-of-attorney that allows them to sign the name of a principal to a contract of sale is a(n): A) attorney-in-fact B) broker with a listing C) special agent D) attorney-at-law - ANS attorney-in-fact No two parcels of land are exactly alike because no two parcels can occupy the same position on the globe. This is known as: A) township B) section C) scarcity D) non homogeneity - ANS inhomogeneity The five ...

ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025 (GRADED)Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful biological effects. - C)2.0 Tissues that have low (short) relaxation times have: - Higher relaxation rates Nuclei in their natural enviroment ( in the absence of a significant magnetic field) are aligned... - Randomly Following the injection of a gadolinium enhancement agent, the pulse sequence most commonly...

MDCB Board Prep Exam Questions With 100% Correct Answers. Line Focus Principle - answerUsed in x-ray tube design to make the apparent focal spot size smaller than the actual focal spot size. Insufficient Vacuum in X-ray Tube - answerCan lead to tube arcing, where no useful beam is produced. Output of X-ray Tube - answerApproximately proportional to the square of tube voltage at a given tube current. Inherent Filtration Standards - answerIntended to reduce patient skin dose by defining t...

ARMRIT Exam Questions With 100% Correct Answers | Updated & Verified 2024/2025. The NMV is rotated to the physical negative Z axis by applying a...? - C)180 pulse Increasing which parameter is considered the "best" technique for improving image quality? - C)NEX Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful biological effects. - C)2.0 Tissues that have low (short) relaxation times have: - Higher relaxation rates Nuclei in their natural e...

The NMV is rotated to the physical negative Z axis by applying a...? - C)180 pulse Increasing which parameter is considered the "best" technique for improving image quality? - C)NEX Studies have concluded that static magnetic fields up to what tesla produce no substantial harmful biological effects. - C)2.0 Tissues that have low (short) relaxation times have: - Higher relaxation rates Nuclei in their natural enviroment ( in the absence of a significant magnetic field) are aligned... - Ra...

ARRT PRINCIPLES OF MRI FINAL EXAM 2023. 3D gradient echo axial views can be used in cervical spine imaging to provide - ANSWER Thin, contiguous sections of the spine, the ability to reformat into any other imaging plane, retrospectively, the ability to get either T1, spin density or T2* information by changing parameters. In complete spine imaging, to rule out metastatic lesions of the spinal cord, contrast enhancement can be used with T1 weighted images because - ANSWER metastatic lesions e...

ARRT MRI REGISTRY EXAM Complete Questions and Correct Answers (2024/2025) FINAL EXAM Already Graded Which of the following parameter adjustments will LENGTHEN scan time in an MR pulse sequence? I. Decrease TR II. Increase TR III. Increase ETL IV. Decrease ETL V. Decrease NEX VI. Increase NEX VII. Enable Half-fourier VIII. Increase parallel imaging factor IX. Decrease parallel imaging factor X. Enable anti-aliasing - ANSWER II, IV, VI and IX Which of the following parameter adju...