Welcome to your MRI - B Professional Name: Email: Contact #: [Diseases, such as malaria, in which microorganisms are transferred via an insect come under the classification of ____________ infections.] Nosocomial Indirect contact Common vehicle Vector borne None . [On Figure arrow F is pointing to the:] Abdominal aorta Inferior vena cava Femoral vein Portal vein Iliac artery None Comment . [In a 3D acquisition, the slices are produced by:] A phase-encoding gradient applied in the slice selection direction Multiple 180° pulses along the slice selection direction Sampling multiple lines of K space per pulse sequence repetition Very accurate RF pulses None . [Vascular imaging of the (arterial) abdominal vasculature (Figure) is typicallyacquired with:] 2D TOF MRA 3D TOF MRA 2D OC MRA 3D PC MRA Contrast-enhanced (CE) MRA None Comment . [On Figure arrow C is pointing to the:] Liver Spleen Gallbladder Head of the pancreas Body of the pancreas Tail of the pancreas None Comment . [Shimming in MRI is performed by all of the following EXCEPT:] Changing current in the shim coil Adding metal to different coils within the shim coil Adding current to the gradient coils Turning the shim coil off and on very rapidly None . [Increasing TR:] Increases scan time Inverts scan time Does not affect scan time Decreases scan time None . [In a time of flight sequence, the tissue is HYPOintense relative to flowing blood because of the:] T2 effects T2* effects Saturation effects Inhomogeneities None . [Which of the following lab tests can be used as an indicator of dehydration?] BUN PTT (partial thromboplastin time) Serum potassium Hematocrit None . [Figure was acquired in the:] Axial imaging plane Sagittal imaging plane Coronal imaging plane Off-axis (oblique) imaging plane None Comment . [Figure was acquired in the:] Axial imaging plane Sagittal imaging plane Coronal imaging plane Off-axis (oblique) imaging plane None Comment . [On Figure the tissue indicated by arrow J is made up primarily of:] White matter Gray matter Cerebrospinal fluid (CSF) Flowing blood None Comment . [On Figure the tissue indicated by arrow B is made up primarily of:] White matter Gray matter Cerebrospinal fluid (CSF) Bone None Comment . [The physical gradient along the bore of a superconducting magnet is the:] x gradient x, y gradient y gradient z gradient None . [The PHYSICAL gradient that is used for phase encoding for the acquisition of an axial slice of the head is the:] x y z A combination of gradients None . [In order for energy to transfer between systems, the two systems must be at the same:] Phase location Energy level Mass Resonant frequency None . [On Figure arrow G is pointing to the:] Internal carotid artery External carotid artery Vertebral artery Subclavian artery None Comment . [The concept of the reasonable prudent person is interpreted as:] How a reasonable jury member would perform the act How a professional with similar education, training, and experience would perform the act How a prudent attorney would interpret the act How a reasonable and prudent judge will rule on the act None . [The signal intensity on PC MRA sequences is related to:] Gadolinium Flow-related enhancement Velocity-induced phase shift Restricted diffusion None . [The timing of RF pulses during an MR pulse sequence:] Controls image contrast Spatially encodes the data Shims the static magnetic field a and b None . Time's up
