Welcome to your MRI - A Name [The technique used to eliminate cross excitation artifact that acquires data in two separate acquisitions from alternating slices is known as ______.] Aliasing Interleaving Spin warping None of the above None . [Gibbs artifact can be decreased by ______ the number of phase encoding steps.] Increasing Decreasing Increasing None . [The spacial location of signal according to its precessional phase is known as ______.] Slice selection Phase encoding Frequency encoding Readout None . [The ECG wave with the highest electrical amplitude is known as the ______. ] R wave Qwave Twave Pwave None . [When bandwidth is increased, signal to noise ratio _______.] Increases Decreases Stays the same None . [The type of MRI magnet that ~lows the highest field strengths is a _____.] Resistive magnet Superconducting magnet Iron core magnet Permanent magnet None . [Gradient echo pulse sequences that preserve left over transverse magnetization are said to be ______. ] Incoherent Coherent Consistent Inconsistent None . [Hazards to patients and technologists due to ferromagnetic objects within the scan room include which of the following?] Metal projectiles Tissue bums Image artifacts None of the above None . [In a TI weighted image, fat has a ______ TI relaxation time and therefore appears ______.] Long, Bright Long, Dark Short, Dark Short, Bright None . [The vascular imaging method that maximizes vascular contrast while also suppressing stationary tissue is known as ______.] Magnetic resonance mammography Magnetic resonance angiography Black Blood imaging Zeugmatography None . [Another name for a proton density weighted image is ______.] Spin density Intermediate Inversion recovery Both A and B None . [The range of frequencies that is transmitted by the RF pulse is known as the ______.] Receive bandwidth Transmit bandwidth Gradient slope None of the above None . [The negatively charged component of an atom is called the _______.] Electron Proton Negatron Neutron None . [Which of the following is a contraindication for the use of gadolinium?] Patients with history of metastatic cancer Patients with history of asthma Patients with history of metal implants No known contraindications None . [Image data with high spatial resolution is stored in which area of K space?] Outer lines Central lines Negative lines only Positive lines only None . [As the echo time increases, the effects of time of flight phenomenon ______. ] Increase Decrease Stay the same None . [When TR is decreased, the effects of entry slice phenomenon ______. ] Increase Decrease Stay the same None . [Neoplasms within the spinal cord are said to be located in which of the following locations?] Intramedullary Extramedullary Intradural Extradural None of the above None . [The strength of a magnet is measured by its _______.] Signal intensity Induction ability Flux density None of the above None . [Blood flow that travels in the same direction in which the slices are acquired is known as what type of flow?] Counter current flow Vortex flow Stagnant flow Co-current flow None . Time's up
