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2011-03-31 12:07:02

unit 2
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  1. aortography definition
    the radiographic demonstration of the various parts of the aorta
  2. visveral angio definition
    the radiographic demonstration of the vascular structure of internal organs contained in the thoracic and abdominal cavities
  3. aortogram with "runoff" definition
    demonstration of abdominal aorta and lower extremeties.

    AOP- Aorta & Peripherals. Same as above
  4. what is demonstrated in the aortogram
    from slightly superior of the bifurcation to the feet
  5. bolus chase definition
    following the contrast media in conjuction with a step table program and DSA
  6. what does a step table do
    it moves the table up to take pics @ different areas of the body

    always make sure you take a scout pic first
  7. peripheral angio definition
    demonstration of the lower extremity vessels ot the upper extremity vessels.
  8. femoral arteriography/angio definition
    demonstration of the lower extremity vessels by the instillation of contrast media
  9. what are the 3 manin parts of an aortography
    • 1. arch
    • 2. thoracic
    • 3.abdominal
  10. what does the arch demonstrate
    the 3 majorvessels arising off the aortic arch
  11. what is and aortography usually done in conjunction with
    with a cerebral angio
  12. what is an aortography useful for
    identifying congenital anomalies
  13. what is a bovine arch
    it is when the left common carotid arises from the brachiocephalic artery instead of the arch itself
  14. showing the LLC off the brach. artery
  15. showing the LLC arising off the brach artery close to the arch
  16. what is the percentage of people having a bovine arch
  17. in the pic, what is seen
    a congenital anomaly
  18. what types of arch anaomalies are there
    • 1. left circumflex aorta
    • 2. inverse aorta- revese aorta
    • 3. pseudocoarctation
  19. what is a left circumflex aorta
    its a normal arch except that the descending aorta is extending inferiorly and to the right
  20. what is an invese aorta- everse arch
    an arch that turns to the right instead of the left and all the major branches occur normally
  21. what is a pseudocoarctation
    a normal aortic arch and branches but the thoracic aorta also has an arch

  22. inverse aorta

  23. left circumflex aorta

  24. pseudocoarctation aorta
  25. what are some indications for a thoracic aortography
    • 1. dissections- such as a MVA (deceleration injury)
    • 2. aneurysms (weakend outpouches)
    • 3. coarctation ( narrowing of the aorta)
    • 4. stenosis (blockage in the aorta)
  26. what are some cotraindications for a thoracic aortography
    for the frmoral approach

    • 1. severe arteriosclerosis because a blockage may break off & go someplace else
    • 2. aneurysm @ the puncture site
    • 3. severe hypertension because it could make it worse and cause a stroke
    • 4. abnormal coagulation profiles
  27. what are the different approches for the thoacic procedure
    femoral - approach of choice

    axillary- hard for pt to hold arm up and can cause hematoma

    brachial (left) used if blocked artery and the left is used in order to by pass all other structures
  28. what is the equipment that is used for a thoracic aortography
    • . 5Fr or smaller pigtail (placed superior to the aortic valve)
    • . local anesthetic such as liocaine
    • . CM nonionic
    • . injector
  29. what positions are used for the thoracic aortography
    RPO- to profile the arch & eliminate superimposition of ascending & descending aorta with the CR @level T6 with a inhalation

    an AP & lat on occasion
  30. what are indications for an abdominal aortography
    • 1. artherosclerosis
    • 2. aortic stenosis
    • 3. aneurysms
    • 4. tumor vascularity
    • 5. trauma
    • 6. preoperative planning
    • 7. origin of visceral vessels
  31. what are some contraindications for abdominal aortography
    • 1. abnormal coagulation profiles
    • 2. severe hypertension
    • 3. aneurysm @puncture site
    • 4. femoral approach in severe arteriosclerosis