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Ultrasonography- detection of size and shape of foetus in uterus

Ultrasonography- detection of size and shape of foetus in uterus. X-Ray Imaging methods : Sciascopy,Sciagraphy, Classical and Computer Tomography . X-rays: kind of ionizing, non-visible radiation.It is danger for living body . Max. harmless exposure is 5 mSv/ year

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Ultrasonography- detection of size and shape of foetus in uterus

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  1. Ultrasonography-detection of size and shape of foetus in uterus

  2. X-Ray Imaging methods:Sciascopy,Sciagraphy, Classical and Computer Tomography X-rays: kind of ionizing, non-visible radiation.It is danger for living body. Max. harmless exposureis5 mSv/ year Definition: is elmg. waving of photoelectrons (as a visible ligh), but with very short λ = 0.05 ηm Source: X-ray tube (diode with -Cathode and + Ano-de).Electrons are emitted from Cathode and flight in vacuum targeting Anode. Thus, only 1-2% X- ra-ys is produced, 98% is taken away of diode as a heat. The higher is anodal current (50-150 kV) the hardest (more penetrable) is X-ray radiation and vice ver-sa.X-ray photo is black-white.Thebones and air have best contrast, soft tissues have worse or no contrast.

  3. X-Ray Tube (DIODE)

  4. Sciascopy, Sciagraphy, Comp. Tomography

  5. Classical Tomography Computer Tomogr.

  6. Computer Tomography (CT)

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