Welcome to your MRI - B Professional Name: Email: Contact #: [According to the Centers for Disease Control and Prevention (CDC), what type of isolation precautions should be used for HIV-positive patients?] Strict Respiratory Enteric Standard (universal) None . [If the TR of a gradient echo pulse sequence is considerably less than the T2 (and T2*), the condition that will exist is known as:] Steady state Spin dephasing Spin rephrasing Spin cancellation None . [On Figure arrow E is pointing to the:] Thalamus Corpus callosum Lentiform nucleus Pituitary stalk (infundibulum) None Comment . [Precautions for the use of gadolinium include: 1. Sickle cell crisis and hypertension 2. Pregnancy 3. Low GFR 4. Hemolytic anomalies and lactating mothers 5. Prior contrast reactions and patients with a history of asthma or allergies] 3 only 1, 2, and 3 only 2, 3, 4, and 5 only 1, 2, 3, 4, and 5 None . [On Figure arrow D is pointing to the:] Central gland of the prostate Peripheral zone of the prostate (with cancer) Peripheral zone of the prostate (without cancer) Neurovascular bundle None Comment . [On Figure arrow D is pointing to the:] Bowel gas Bladder Symphysis pubis Pubic bone Central gland of the prostate Rectum None Comment . [Increasing the flip angle:] Increases SNR up to the Ernst angle Inverts SNR Does not affect SNR Always decreases SNR None . [On Figure arrow H is pointing to the:] Splenic artery Right renal artery Left renal artery Spinal artery Common iliac artery None Comment . [The FDA-approved (iron oxide) oral contrast agent used for MRI makes bowel appear:] Bright on T1-/bright on T2-weighted images Dark on T1-/dark on T2-weighted images Bright on T1-/dark on T2-weighted images Dark on T1-/bright on T2-weighted images None . [Which of the following may cause a patient to experience a syncopal episode? 1. Hypertension 2. Anxiety 3. Infection 4. Hunger] 1 and 2 only 1 and 3 only 2 and 3 only 2 and 4 only None . [Decreasing the receiver bandwidth (narrow BW):] Increases readout time Inverts the readout time Reduces readout time Has no effect on the readout time None . [On Figure arrow B is pointing to the:] Humerus Radius Ulna Capitellum None Comment . [On Figure arrow C is pointing to the:] Biceps muscle Triceps muscle Brachioradialis muscles Coronoid process None Comment . [Under which of the following conditions would a sterile package NOT be considered contaminated (i.e. safe to use)?] Package has a tear in it Tape used to indicate sterility is intact Package is damp Package expiration date has been exceeded None . [A chemical or spectral fat suppression sequence will suppress the signal from fat based on the:] Precessional frequency of fat Amount of fat in the target slice T2 relaxation time of fat a and c None . [Following a 90° RF pulse, the signal that is created is called:] Spin echo Gradient echo Free induction decay FRE None . [In a vessel with a plaque producing a high degree of stenosis, the velocity of the blood flow in the center point of the stenosis is:] Increased Decreased Reversed Unaffected None . [As the TR increases:] SNR increases SNR decreases SNR is not affected by TR TE increases None . [When a patient is placed within the bore of a magnetic resonance imager, an effect can be noted on the ECG whereby there is an elevated “T” wave. This “effect” is known as all EXCEPT:] Magnetohydrodynamic effect Magnet-hydrodynamic effect Magnet-hemodynamic effect Magnetophosphenes None . [On Figure arrow D is pointing to the:] Olecranon process Olecranon fossa Humerus Trochlea Coronoid process None Comment . Time's up
