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Results 1 - 10 of 40 for J wave
  1. EEG 
    Brain electrical activity has a certain number of waves per second (frequencies) that are normal for different levels of alertness. For example, brain waves are faster when you are awake and slower ...
    https://medlineplus.gov/ency/article/003931.htm - Medical Encyclopedia
  2. Movement - uncontrollable 
    ... of the head or affected area EEG (brain wave study) Lumbar puncture ... will make recommendations based on your signs and symptoms.
    https://medlineplus.gov/ency/article/003201.htm - Medical Encyclopedia
  3. Duplex ultrasound 
    ... duplex ultrasound combines: Traditional ultrasound: This uses sound waves that bounce off blood vessels to create pictures. Doppler ultrasound: This records sound waves reflecting off moving objects, such as blood, to ...
    https://medlineplus.gov/ency/article/003433.htm - Medical Encyclopedia
  4. Echocardiogram - children 
    An echocardiogram is a test that uses sound waves to create pictures of the heart. It is ... the heart. This device releases high-frequency sound waves. The transducer picks up the echo of sound ...
    https://medlineplus.gov/ency/article/007669.htm - Medical Encyclopedia
  5. Carotid duplex 
    Ultrasound is a painless method that uses sound waves to create images of the inside of the ... to help with the transmission of the sound waves. Next, the technician moves a wand called a ...
    https://medlineplus.gov/ency/article/003774.htm - Medical Encyclopedia
  6. Polysomnography 
    ... three stages that can be detected by brain waves (EEG). REM sleep alternates with NREM sleep about ... of oxygen in your blood Body position Brain waves (EEG) Breathing effort and rate Electrical activity of ...
    https://medlineplus.gov/ency/article/003932.htm - Medical Encyclopedia
  7. Ultrasound 
    Ultrasound uses high-frequency sound waves to make images of organs and structures inside the body. ... examined. The machine sends out high-frequency sound waves, which reflect off body structures. A computer receives ...
    https://medlineplus.gov/ency/article/003336.htm - Medical Encyclopedia
  8. MRI 
    ... imaging test that uses powerful magnets and radio waves to create pictures of the body. It does ... studied. These help send and receive the radio waves, and improve the quality of the images. During ...
    https://medlineplus.gov/ency/article/003335.htm - Medical Encyclopedia
  9. Breast ultrasound 
    Breast ultrasound is a test that uses sound waves to examine the breasts. ... the left or right. The device sends sound waves to the breast tissue. The sound waves help ...
    https://medlineplus.gov/ency/article/003379.htm - Medical Encyclopedia
  10. Fetal echocardiography 
    Fetal echocardiography is a test that uses sound waves ( ultrasound ) to evaluate the baby's heart for problems ... over the area. The probe sends out sound waves, which bounce off the baby's heart and create ...
    https://medlineplus.gov/ency/article/007340.htm - Medical Encyclopedia
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