| 1. | Doppler ultrasonography is used to study blood flow and muscle motion.
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| 2. | Ultrasonography or computed tomography often shows an immobile, enlarged gallbladder.
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| 3. | Ovarian function may be measured by gynecologic ultrasonography of follicular volume.
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| 4. | Backscattering has important applications in astronomy, photography and medical ultrasonography.
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| 5. | Ultrasonography is also a useful test in localizing suspicious parathyroid lesions.
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| 6. | Early diagnosis can be made by X-ray or ultrasonography.
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| 7. | The process should be similar to that used in Doppler ultrasonography.
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| 8. | The diagnosis is made in asymptomatic pregnant women by obstetric ultrasonography.
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| 9. | Both of these findings were used in the development of ultrasonography.
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| 10. | The ultrasonic systems used in medical ultrasonography employ piezoelectric transducers.
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