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23 Cards in this Set
- Front
- Back
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Name the special exams?
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1 - Scanography
- Orthoroentgenography 2 - Arthography 3 - HSG Hysterosalpingography |
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What is scanography
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The measurement of long bones
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What are the 2 treatment methods of scanography?
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- Control growth of normal side
- Increase growth of shorter limb |
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What are the 2 different methods of performing scanography?
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1 - Upper Limb
2 - Lower Limb |
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Describe the procedure for scanography:
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- No motion
- exam both sides for comparison - 2 lower limbs examined simultaneously - Use a Bell-Thompson ruler |
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How do you position for upper limb scanography?
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shoulder - superior margin of
humeral head Elbow Joint - 1/2 - 3/4 below plane of humeral epicondyles Wrist - Midway between radial & ulna styloid processes |
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How do you position for lower limb scanography?
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Hip Joints - 1" - 1"1/4 distal
& perp.to a line drawn from the ASIS to PS Knee Joint - Just below patella apex Ankle Joint - Midway between Malleolis |
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What is the principle of teleorentgegraphy?
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To increase SID to reduce OID in order to reduce magnification.
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What is orthoroentgenology?
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A procedure to accurately determine the length of a child's limb
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What is anthography?
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radiographic examination of a joint after the injection of a dye-like contrast material and/or air to outline the soft tissue and joint structures on the images.
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What is pneumoarthrography?
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Arthography utilizing a gaseous medium
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What is an opaque arthography?
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A water soluble - iodinated medium (conray)
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What is a double-contrast arthography?
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The use of gas & water soulble
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What is the most common site for arthography?
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Knee
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What are the 2 arthography methods for the knee?
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Verticle Ray (single-contrast
knee) Horizontal Ray double-contrast knee |
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Describe the single (verticle) contrast knee method:
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Requires a stress device
Widen intrastructual spaces Contrast material around meniscus Use fluoro AP films taken 20 degrees Obl |
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Describe Double-contrast (horizontal) ray method of the knee for the medial & lateral meniscus:
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small amounts of contrast
patient semiprone manually stress the knee CR to meniscus turn knee 30 degees for each succeeding exposure 6 exposures total |
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Descibe the cruciate & lateral meniscus horizontal ray method:
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knee fled 90 degrees off side of the table
forward pressure on the leg close collimation slight overexpose lateral |
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Why do we perform an HSG?
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to determine size, shape, & position of the uterus & uterine tubes
to identify polps, tumor masses, & fistulous tracts determine pregnancy |
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Describe the use of contrast media for an HSG:
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Water soluble
Room temperature absorbed by the body & eliminated in 2 hours pass thru uterine tubes |
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Describe patient preparation for an HSG:
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schedule 10 days onset of menstruation
completely empty bladder clense area |
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Describe the procedure for an HSG:
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Spot film
Lithotomy position (stirups) CR 2" superior to the pubis symphysis Doc fits attached rubber plug (acorn) Doc applies counter-pressure with a tentaculom to prevent reflux of contrast media Doc withdraws speculum unless its radiolucent contrast injected |
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What films are taken for an HSG?
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Scout
AP xray after each injection fluoro additional - obl, axial & lateral Short scale of contrast |
