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Welcome . Ultrasound and Fetal Medicine Unite Al Azhar Hospital – Domiate. S O N A R . Sound . Navigation. And. Ranging. 1826. 1955. 1924. 1957. 1946. Probe Types. There are two broad types of transducer :. Linear. Sector.

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  1. Welcome Ultrasound and Fetal Medicine Unite Al Azhar Hospital – Domiate

  2. SONAR Sound Navigation And Ranging

  3. 1826 1955 1924 1957 1946

  4. Probe Types There are two broad types of transducer: Linear Sector These terms refer to the way in which the crystals are arranged and manipulated to produce an image.

  5. Ultrasound frequency • Ultrasound frequencies are described in megaherz (MHz). • frequency is related to image resolution but inversely related to penetration. Thus the higher the frequency of the probe, the better the resolution of the image but the shallower the depth of tissue. 3.5 MHz or 5 MHz 7 MHz or 8 MHz

  6. Orientation

  7. Too Low Gain Gain Control Correct Gain Too Much Gain

  8. Probe – Skin Contact if contact is lost between the probe surface and the maternal skin surface. This is most commonly seen when scanning over the umbilicus, or with a hirsute woman, when small amounts of air become trapped in the body hair

  9. AbdominalPROBE MOVEMENTS

  10. VAGINAL PROBE MOVEMENTS

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