EXAM 2 MIT 103 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

EXAM 2 MIT 103 QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 Computerized Tomography is also interpreted as a computer generated image of a "slice" or section. True False - Answers true The invention of CT has been credited to: J. Radon Oldendorf Cormack Hounsfield - Answers Hounsfield It could take 2.5 hours for images from the first CT scanner to be processed. True False - Answers true First generation scanners operated on the Translate/Rotate system. True False - Answers true The first CT scanner could only scan what anatomy? Skull Abdomen Extremities all the above - Answers skull The first CT scanner was installed in Atkinson-Morley's Hospital in: 1967 1971 1917 1972 - Answers 1971 Second generation CT scanners differ from first generation CT scanners by: having multiple detectors rotating 10 degrees instead of one Both of the above None of the above - Answers Both of the above First generation CT scanners could scan the whole body were second generation scanners could not. True False - Answers false Multi-Detector CT systems have a much higher dose rate then conventional CT systems. True False - Answers true CT represents about 15% of diagnostic imaging studies performed today but a disproportionate exposure dose of: nearly 90% 80% 50% 15% - Answers The largest source of background radiation comes from: Cosmic radiation Radon gas in homes Radioactive materials in the ground None of the above - Answers Radon gas in homes Before IV contrast can be given to a patient, we must have a signed consent form. True False - Answers true The same Oral contrast used in Radiography is used in MRI. True False - Answers false Helical CT differs from Conventional CT by: The continuous rotation of x-ray tube and movement of the table together The super fast scan times Both of the above None of the above - Answers Both of the above A CT technologists' main role is to minimize patient dose while still maintaining high quality images. True False - Answers true Iodine contrast media can be infused into the body by way of a: guide wire c-arm u-arm catheter - Answers catheter A vessel that channels blood to the heart is termed a/an: vein artery capillary lymphatic - Answers vein A vessel that channels blood away from the heart is termed a/an: vein artery capillary lymphatic - Answers artery Cardiovascular Interventional Technology can be both a diagnostic and therapeutic modality. True False - Answers true A condition defined as hardening of the arteries due to fatty plaque build up is: embolism artherosclerosis thrombolysis thrombus - Answers artherosclerosis The most common method by which a needle is introduced into an artery in order to perform an angiogram is termed: the Seldinger technique embolization angioplasty dissection - Answers the seldinger technique Placement of the balloon catheter for balloon angioplasty of the coronary arteries is usually performed by a: Cardiologist Radiologist Radiologic Technologist Radiology Nurse - Answers cardiologist Iodine contrast media normally has a yellow tinge. True False - Answers false The CI/VI technologist must be a registered through the ARRT initially as a(n): sonographer nuclear medicine technologist vascular technologist radiographer - Answers radiographer Angiogram - Answers A medical imaging test that uses X-rays and a special contrast dye to visualize blood flow inside arteries or veins Embolus - Answers A clot that breaks lose and travels through the bloodstream. thombulus - Answers A soiid unhealthy blood clot that forms inside a vein or artery remaining attached to the vessel wall In most departments the interventional team will include four highly trained health care professionals when performing an intervention. Which of the following will be part of the team? (select 4 answers) A specially trained physician (interventional cardiologist or radiologist) A scrub tech A circulator A monitor tech A nuclear medicine tech A respiratory therapy tech An echo tech - Answers - A specially trained physicain (interventional cardiologist or radiologist) -A scrub tech - A circulator - A monitor tech Most hospitals pay an hourly rate while a technologist is on standby (on call) and time and a half when they are called in to perform a procedure. True False - Answers true Most radiographers cross-train into the interventional suite through on the job training rather than attend formal classroom teaching. True False - Answers true The first angiogram performed was done on, A dog An amputated human hand An amputated foot A laboratory rat - Answers An amputated human hand the interventional suite is stocked with literally $100,000's of supplies. True False - Answers true the patient table in the interventional suite has capabilities to, Raise and lower Pivot Float the top to position the patient All of the above None of the above - Answers all of the above What imaging energy is used when performing an angiogram: Ultrasonic waves Magnetic field and radio frequency Radioisotopes X-radiation - Answers X-radiation Why is iodine based contrast media used when performing an angiogram? Because the atomic density of the blood and vessel is so similar to the surrounding tissue. Because it releases gamma rays which are used to image the vessel. Iodine contrast is not injected into the vessel, it is air. None of the above. - Answers Because the atomic density of the blood and vessel is so similar to the surrounding tissue. A major difference in X-ray and MRI is that MRI does not use? Electromagnetic energy Radio waves Ionizing radiation - Answers ionizing radiation What element is imaged for medical purposes on human subjects? Hydrogen Oxygen Carbon All of the above - Answers hydrogen MR receiving coils are what (in function)? RF transmitters Resonant receivers Antenna magnetic field emitters - Answers Antenna What is the name of the motion made by H protons in the magnetic field? Precession Procession spin resonance wobble - Answers precession What is the resonance of magnetic resonance? the transfer of oscillating energy to an object at the same frequency the transfer of oscillating energy to an object at any frequency the transfer of oscillating energy from an object at any frequency, to one of a specific frequency the transfer of oscillating energy from an object of a specific frequency, to one of any frequency - Answers The transfer of oscillating energy to an object at the same frequency Relaxation of H occurs when: H is in Bo prior to RF irradiation H is absorbing the RF pulse the RF pulse is terminated the exam is over and the patient is out of Bo - Answers the RF pulse is terminated What is the purpose of a Faraday cage in MRI? To keep RF energy within the scanning room To keep RF energy out of the scanning room To contain the strong magnetic field of Bo To keep patients from escaping - Answers to keep RF energy out of the scanning room What is the MR signal? an electric current induced by relaxing H protons an electric current created when RF energy is absorbed a magnetic field formed by precession a magnetic field induced by gradient magnetic fields - Answers an eletric current induced by relaxing H protons A cryogen is an element that is normally a _______on earth, but when compressed becomes a ______, causing it to drop below its evaporation point, creating a super cold________. liquid, gas, gas gas, liquid, liquid gas, liquid, solid iquid, solid, solid - Answers gas, liquid, liquid What 3 things are required to generate an electric current (choose the best answers)? I. A magnetic field II. Motion III. A conductor of electricity IV. A positive pole - Answers I, ii, iii How is a magnetic field (any field) created? By passing accumulation a static charge By surrounding an electrical conductor in a cryogen By moving an electric field through a cryogen By passing electricity though a conductor - Answers by passing electricity though a conductor MRI has superior contrast resolution to: Ultrasound Nuclear Medicine Radiographs Computed Tomography (CT) All of the above - Answers all of the above The most important function of gradient magnetic fields in MRI is: to establish spin in the correct direction to capture the MR signal to spatially locate the MR signal to shape the magnetic field and thus enhance contrast resolution - Answers to spatially locate the MR signal What is the name of the physician/engineer who built the first human MR imager? - Answers Raymond Damadian If a person uneducated about magnetic field dangers walks into a magnet room without being screened, it is possible that he or she may: experience nothing since the magnet should always be shut down when not in use. experience vertigo