CAMRT: Angiography (Non CE) Questions with verifies answers

CAMRT: Angiography (Non CE) Questions with verifies answers CEMRA is the choice for _______ vessels -Correct Answer-Large Flow-dependent angiograms is the choice for _____ vessels -Correct Answer-Small What is the aim for inflow angiograms? -Correct Answer-To produce high contrast images between vessel and stationary background anatomy How is signal from stationary background tissue saturated in inflow MRA? -Correct Answer-By using a short TR Why is inflow angiograms only suitable for imaging blood that flows perpendicular to the slice? -Correct Answer-Blood flowing in-plane receive multiple RF pulses, causing saturation and signal loss T/F: Arteriography and venography can be performed with 2D inflow MRA -Correct Answer-True What is the cons of acquiring slices sequentially? -Correct Answer-If patient moves, gaps, breaks and noncontinuity of vessels could show What type of angiogram is used for MIP? -Correct Answer-2D inflow angiogram What pathology could mimic AVM? -Correct Answer-Early subacute hemorrhage What type of inflow MRA offers a large area of coverage? -Correct Answer-2D inflow angiogram What type of inflow MRA offers high resolution for small vessels? -Correct Answer-3D inflow MRA What is the benefit of using thin partitions and isotropic voxels? -Correct Answer-Reconstructed image have high spatial resolution and voxel size is the same in every angle What is a benefit of using 3D inflow angiograms? -Correct Answer-Allows for thinner partitions and small isotropic voxels What type of inflow MRA is sensitive to the venetian blind artifact? -Correct Answer-2D inflow MRA T/F: 3D inflow MRA is sensitive to slow flow -Correct Answer-False 2D inflow MRA is sensitive to slow flow How is venetian blind artifact reduced? -Correct Answer-Breath-hold techniques When is MOTSA used and why? -Correct Answer-3D inflow angiography