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Additional Equipment and Mammo Anatomy

Terms in this set (50)

Mobile Equipment
radiographic or fluoroscopic units that are transportable to the patients bedside or the OR
C-Arm
mobile units that have fluorscopic capabilities that are typically used in the operating room when imaging is necessary during surgical procedures
Dedicated Units
units designed for specific imaging procedures
Paroramic X-ray also known as
Panorex
Paroramic x-ray
designed to image curved surfaces, typically the mandible and teeth
Bone Densitometry
specialized procedure using ionizing radiation to provide information on the condition of the skeletal bones
Osteoporosis
a bone disease in which the bones become thinner and more porous and therefore are susceptible to fractures
Linear Tomography
an imaging procedure using movement of the x-ray tube and image receptor in opposing directions to create images of structures in a focal plane by blurring the anatomy located above and below the plane of interest
Tomographic angle
the arc created during total movement of the x-ray tube
Pivot point is also known as
Fulcrum
Pivot Point/Fulcrum
a fixed point on the plane of the anatomic area to be imaged
Focal Plane also known as
Object Plane
Focal Plane/Object Plane
plane in which the area of interest lies
Sections
the thickness or width of the focal plane
Direct power/capacitor discharge uses what type of current
AC (alternating current)
Battery Unit for portable uses what type of current?
DC (direct current)
DC Chopper
mimics AC current for curcuit(Transformers)
Pro for high frequency unit
Capable of Highly Penetrating Beam
SID range for 72" that will still have a quality radiograph
61 to 83 inches
What does DEXA stand for
Dual Energy X-Ray Absorption
Lowest subject contrast of the entire body?
Breast Tissue
Ratio of Women being diagnosed with breast cancer?
1 in 7
Old mAs used in the 60s for mammos
1800
when was the first mammo registry?
1991
When did mammo become digital?
2000
What kind of interactions does one want in mammo?
Photoelectric Absorption
Craniocaudad diameter of breasts?
12-15 cm
Pectoralis Major
Muscle that is anterior to the ribs and marks the end of the breast tissue
Retromammary Space
located between breast and muscle, very loose connection to chest wall for mobilitiy
Glandular
Dense tissue found in center area of breast
Lobes that the breast is divided into?
15-20
Alveoli
produces oil which will become milk
Ampullas
Store the milk until needed
Cooper's Ligaments
Ligaments that supports the breast
3 general categories of breasts
Fibro-glandular, Fibro-fatty, and Fatty
How and when you should get a mammo?
Every year after 40 years old unless you have a family that has a hx of breast cancer. Then it is after 30
kVp ranges for mammo?
25-28
Exposure times?
.4 to 1.0 seconds and 2-4 seconds for mag views
SID range for mammo?
24-30 inches
Focal spot uses what for mammo?
single tungsten wire
Anode material routinely used
Molybdenum
Other material used?
Rhodium
Window of x-ray tube is made of?
Beryllium
Filtration Material is made of?
Molybdenum
Benefits of mag view?
Increased Resolution, less scatter, and Improved visibility of small calcifications
Disadvantages of mag view?
increased dose
Grid ratio for mammo?
4:1 or 5:1
Pounds of force for compression?
25-45 lbs
Image Receptors made of?
Carbon Fiber
What is the minimum for line pairs/mm mammo can see?
11 to 13
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