Page: 11 (Special Imaging) - 11% Flashcards
Which of the following presents structures in different planes with equal clarity?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
d.) CT
Which of the following measures bone densities fro Osteoporosis?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
e.) DEXA (Dual Emission X-ray Absorptometry)
Which of the following provides optimal visualization of spatial relationships and distinct soft tissue contrast to view: IVD, spinal cord, meninges, bone, meniscus or ligaments?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
c.) MRI
Which of the following uses and injection of radioactive substance to measure the body “attempt” to lay down new bone?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
a.) Scintigraphy (aka: Bone Scan)
Which of the following uses contrast and is 10x better than plane film?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
d.) CT
Which of the following has no radiation dose and utilizes signal intensities using surface coils?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
c.) MRI
Which of the following is best for lung pathology?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
d.) CT
Which of the following is best for AVN’s?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
c.) MRI
Which of the following is best for Multiple Sclerosis?
a. ) Scintigraphy
b. ) X-ray
c. ) MRI
d. ) CT
e. ) DEXA
c.) MRI
CT is measured in _____ units?
Hounsfield units
T1 MRI weighted is for _____?
T2 MRI weighted is for _____?
T1 = fatty pathologies, i.e. Muscular Dystrophy T2 = water density, i.e. CSF and Disc's
Scintigraphy (Bone Scan) uses an injection of radioactive substance called: _____?
Technetium 99
What chemical substance is used in magnetic resonance imaging (MRI)?
Gadolinium
What does it mean when a Scintigraphy (Bone Scan) is “HOT”?
means it’s Positive: AVN, Blastic/Lytic Mets, Paget’s, Hodgkin’s and fractures
What does it mean when a Scintigraphy (Bone Scan) is “COLD”?
means it’s Negative (nothing is happening): Multiple Myeloma