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Angiography

Angiography . Aneurysm . ICA. ECA. In A. Aneurysm . Pulmonary embolism 肺栓塞. DSA image. PE. High-grade renal artery stenosis. After angioplasty. X-ray protection. X-rays are harmful.

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Angiography

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  1. Angiography

  2. Aneurysm

  3. ICA ECA In A

  4. Aneurysm

  5. Pulmonary embolism 肺栓塞

  6. DSA image PE

  7. High-grade renal artery stenosis After angioplasty

  8. X-ray protection

  9. X-rays are harmful • The absorbed x-ray gives all of its energy to an electron, and this electron can rip through a cell, tearing electrons from all sorts of atoms and molecules it meets. It is like a billiard ball spreading its energy to all of the other balls on the table. The fancy name for this process is ionization, because taking away electrons makes the atoms and molecules into ions.

  10. But that doesn't seem very bad at all. • These high speed electrons do damage to the cells. Fortunately, the human body is good at repairing itself. • So the radiation dosage a person absorbed must be controlled an a permitted range.

  11. The end

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