NEW
Font size
WorksheetsMedical Imaging
Total questions: 25
Worksheet time: 19mins
As an ultrasound pulse moves through tissue in a patient's body it will not undergo a change in
Frequency
Amplitude
Phase
Wavelength
Which of the following electronic component is used in ultrasound
Quartz crystal
Amplifier
Transducer
Transformer
Ultrasound belongs to which classification of medical equipments
Therapeutic
Diagnostic
Surgical
Laboratory
The purpose of the coupling gel is to
Eliminate reflection at the skin's surface due to air
Increase the impedance between the skin and transducer
Decrease the wavelength of sound so that it will be transmitted better into the body
All of the above
When an electron and positron meet and destroy each other it is called...
destruction
combustion
emission
annihilation
The PET scanner detects at least three pairs of gamma rays to locate a tumour. This is called...
detection
triangulation
echolocation
annihilation
Isotopes used in PET scanning must have a...
short half-life
long half-life
Ultrasound transducers convert electrical energy to
thermal energy
kinetic energy
sound energy
light energy
Small, focused doses of high energy radiation passes through the subject, casting a "shadow" on the machine's sensors
MRI
X-Ray
CT
PET
Ultrasonography
Great detail on soft tissues like the brain, tendons and ligaments.
MRI
X-Ray
CT
PET
Ultrasonography
A sectional X-ray. Okay for soft tissues. Great for dense tissues.
MRI
X-Ray
CT
PET
Ultrasonography
Which scan does not pose the risk of radiation exposure?
MRI
CT scan
X-ray
Bone scan
Noninvasive technique that uses electromagnetic radiation to produce two-dimensional images of dense tissues
MRI
CT scan
X-ray
Bone scan
Noninvasive technique that produces cross-sectional images of dense tissues
MRI
X-Ray
CT scan
Bone scan
Noninvasive technique that produces images of internal soft tissues through the use of magnets and radio waves
MRI
X-ray
CT scan
Bone scan
This technology cannot be used on someone with metal in their body.
MRI
EEG
CT scan
X-ray
What is a CAT scan?
A scan for you cat
Catalysed Anatomical Scanning - an X-Ray that detects higher rates of metabolic reactions
Complete Arterial Topography - multiple X-Rays that take 3D images of the body's arterial topography
Computerised Axial Tomography - multiple X-Ray images that can be combined to give 3D images
What would you need if you had to have an X-Ray of the soft tissue in your colon?
A CT Scan
A Barium Meal
Colonic irrigation
You would use a Gamma Camera
What atom in the human body is targeted by Magnetic Resonance Imaging?
Sodium
Potassium
Hydrogen
Oxygen
What is used to excite the nucleus of the hydrogen atoms in MRI?
A feather duster to tickle them with.
Ultrasonic waves.
Radiofrequency pulses.
Infrared pulses.
Have a lead grid to absorb scattered rays.
Put the detection plate as close to the patient as possible.
Have a lead grid to absorb as many x rays as possible.
Put the detection plate as close to the patient as possible.
Have a lead grid to absorb as many x rays as possible.
Put the detection plate as close to the patient as possible.
Have a lead grid to absorb scattered rays.
Put the detection plate as close to the patient as possible.
