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  2. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    Transvaginal scans usually provide clearer pictures during early pregnancy and in obese women. Also used is Doppler sonography which detects the heartbeat of the fetus. Doppler sonography can be used to evaluate the pulsations in the fetal heart and bloods vessels for signs of abnormalities. [5]

  3. Pregnancy and sleep - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_and_sleep

    Pregnancy brings about significant and dynamic physiological changes that can impact sleep and contribute to sleep disorders.These changes encompass structural alterations that may affect the length and quality of sleep, disrupt breathing during sleep, and metabolic shifts that raise the risk of restless legs syndrome.

  4. Vibroacoustic stimulation - Wikipedia

    en.wikipedia.org/wiki/Vibroacoustic_stimulation

    In 2013, the Cochrane Database of Systematic Reviews concluded that there was insufficient evidence from randomized trials to support its use to assess fetal well-being in labor. [3] A related Cochrane Review, however, concluded that its use in antenatal testing did reduce the incidence of non-reactive cardiotocography and the overall testing time.

  5. 3D ultrasound - Wikipedia

    en.wikipedia.org/wiki/3D_ultrasound

    Essentially, ultrasound is considered safe. While other imaging modalities use radioactive dye or ionizing radiation, for example, ultrasound transducers send pulses of high frequency sound into the body and then listen for the echo. In summary, the primary risks associated with ultrasound would be the potential heating of tissue or cavitation ...

  6. Doppler ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Doppler_ultrasonography

    Absence of the portal system in a first trimester case associated with hygroma and aorto-umbilical fistula. (A): Transverse plane of the upper abdomen with color Doppler applied, showing umbilical cord insertion, stomach, the prominent hepatic artery and no afferent liver venous perfusion; (B): midsagittal plane reconstructed from a three-dimensional volume acquisition were the crown-rump ...

  7. Sleep study - Wikipedia

    en.wikipedia.org/wiki/Sleep_study

    Sleep-related breathing disorders, such as sleep apnea [1] [2] Sleep-related seizure disorders [1] Sleep-related movement disorders, such as periodic limb movement disorder, which is repeated muscle twitching of the feet, legs, or arms during sleep. [2] [1] Sleep studies may be used to diagnose or rule out restless legs syndrome (RLS). However ...

  8. Doppler fetal monitor - Wikipedia

    en.wikipedia.org/wiki/Doppler_fetal_monitor

    The Doppler fetal monitor is commonly referred to simply as a Doppler or fetal Doppler. It may be classified as a form of Doppler ultrasonography (although usually not technically -graphy but rather sound-generating). Doppler fetal monitors provide information about the fetus similar to that provided by a fetal stethoscope. One advantage of the ...

  9. Sleep medicine - Wikipedia

    en.wikipedia.org/wiki/Sleep_medicine

    A sleep diary, also called sleep log or sleep journal, kept by a patient at home for at least two weeks, while subjective, may help determine the extent and nature of sleep disturbance and the level of alertness in the normal environment. A parallel journal kept by a parent or bed partner, if any, can also be helpful.

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