Welcome to your MRI - B Professional Name: Email: Contact #: [RF energy used in MRI is classified as:] High energy, ionizing radiation High energy, nonionizing radiation Low energy, nonionizing radiation Low energy, ionizing radiation None . [When sterile fields are prepared, damp packages:] Are always considered contaminated Are always considered sterile because the dampness confirms they were cleaned Should be unwrapped first and placed in the center of the sterile field Are always considered sterile; the dampness is only a remnant of the gassing process None . [On Figure the tissue indicated by arrow O is made up primarily of:] White matter Gray matter Cerebrospinal fluid (CSF) Bone None Comment . [On Figure arrow H is pointing to the:] Ascending aorta Aortic arch Descending aorta Abdominal aorta Superior mesenteric artery None Comment . [When scanning patients to rule out brain tumors, the weighted images acquired to evaluate the extent of the lesion, after injection of gadolinium, are:] T1 T2 Proton density T2* gradient echo None . [In the multi-echo spin echo sequence shown in Figure, the number of LONGTE images created with a 20-slice sequence will be:] 2 4 20 40 None Comment . [The technique by which signal data is transformed from a plot of signal intensity over time to a plot of signal intensity over frequency is known as:] Fourier transformation Chemical shift Parts per million Volume rendering None . [On Figure arrow E is pointing to the:] Ichium Acetabulum Iliac wing Femoral head Psoas muscle None Comment . [On Figure arrow I is pointing to the:] Olecranon process Olecranon fossa Humerus Ulna Radius None Comment . [During excitation, all of the following occur EXCEPT:] Low energy spins enter the high energy state Spins begin to precess “in phase” The net magnetization is transferred into the transverse (x/y) plane High energy spins return to the low energy state None . [The transmit bandwidth of the RF pulse affects:] Spatial resolution Slice thickness Image contrast a and b None . [What is the average pulse rate for an infant?] 40–60 beats per minute 70–80 beats per minute 80–100 beats per minute 115–130 beats per minute None . [Which of the following blood tests would NOT be used to assess the patient’s risk of hemorrhaging during an invasive procedure (such as a biopsy)?] Prothrombin time (PT) Hematocrit International normalized ratio (INR) Platelet count None . [The optimal view (or views) for the evaluation of the aortic arch include: 1. Sagittal 2. Axial 3. Coronal 4. Oblique] 1 only 2 only 1 and 3 only 1 and 4 only None . [TMJ imaging is acquired with oblique acquisition. The sagittal oblique images (Figure , lower left) are acquired with slices:] Perpendicular to the mandibular condyle Parallel to the mandibular condyle Along the parietal lobe Perpendicular to the cervical spine None Comment . [On Figure arrow C is pointing to the:] Tibia Achilles tendon Tibio-talar joint Talus None Comment . [On Figure arrow H is pointing to the:] Cruz of the diaphragm Adrenal gland Right kidney Left kidney Pancreas None Comment . [The images in Figure were acquired in the:] Axial imaging plane Sagittal imaging plane Coronal imaging plane Off-axis (oblique) imaging plane None Comment . [Where would a “central line” catheter be located?] Subclavian vein Brachiocephalic artery Median cubital vein Superior vena cava None . [For a patient with a suspected pituitary microadenoma, contrast is injected and imaging is performed:] Rapidly because lesions enhance early Rapidly because lesions have low signal intensity compared to the enhanced pituitary gland With delayed imaging because lesions enhance slowly and the pituitary gland does not enhance With no specific timing considerations None . Time's up
