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  2. Phased array ultrasonics - Wikipedia

    en.wikipedia.org/wiki/Phased_array_ultrasonics

    The PA probe consists of many small ultrasonic transducers, each of which can be pulsed independently.By varying the timing, for instance by making the pulse from each transducer progressively delayed going up the line, a pattern of constructive interference is set up that results in radiating a quasi-plane ultrasonic beam at a set angle depending on the progressive time delay.

  3. Ultrasonic testing - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_testing

    Step 1: The UT probe is placed on the root of the blades to be inspected with the help of a special borescope tool (video probe). Step 2: Instrument settings are input. Step 3: The probe is scanned over the blade root. In this case, an indication (peak in the data) through the red line (or gate) indicates a good blade; an indication to the left ...

  4. Focused assessment with sonography for trauma - Wikipedia

    en.wikipedia.org/wiki/Focused_assessment_with_s...

    Stratosphere sign is a clinical medical ultrasound finding usually in an eFAST examination that can prove presence of a pneumothorax. The sign is an imaging finding using a 3.5–7.5 MHz ultrasound probe in the fourth and fifth intercostal spaces in the anterior clavicular line using the M-Mode of the machine. This finding is seen in the M-mode ...

  5. Esophageal doppler - Wikipedia

    en.wikipedia.org/wiki/Esophageal_doppler

    From the probe tip, a beam of continuous wave ultrasound is directed through the esophageal wall into the aorta and reflects off the moving blood back to the probe; the Doppler effect is used to directly measure the velocity of the blood (by the shift in frequency of the reflected ultrasound signal compared to the original beam).

  6. Transesophageal echocardiogram - Wikipedia

    en.wikipedia.org/wiki/Transesophageal_echocardiogram

    Most TEE probes contain a two-dimensional ultrasound crystal. This permits rotation of the 2-D echo plane without physical movement of the probe. This is often referred to the "angle" and varies between 0° and 180° (flipped image of 0°). For any given position of the probe in the body, different angles permit viewing structures more optimally.

  7. Functional ultrasound imaging - Wikipedia

    en.wikipedia.org/wiki/Functional_Ultrasound_Imaging

    Functional ultrasound imaging (fUS) is a medical ultrasound imaging technique for detecting or measuring changes in neural activities or metabolism, such as brain activity loci, typically through measuring hemodynamic (blood flow) changes.

  8. ‘Ultrasound’ Review: A Frustrating Sci-Fi Puzzle-Box Thriller

    www.aol.com/ultrasound-review-frustrating-sci-fi...

    There’s a limit to how long a movie can mess with viewers’ minds, and Ultrasound” eventually crosses that threshold. A thriller whose discomforting early going provides few clues to the ...

  9. Therapeutic ultrasound - Wikipedia

    en.wikipedia.org/wiki/Therapeutic_ultrasound

    The bottom probe demonstrates the use of ultrasound for therapeutic benefits, which often utilize high-energy, focused ultrasound beams. In the above applications, the ultrasound passes through human tissue where it is the main source of the observed biological effect (the oscillation of abrasive dental tools at ultrasonic frequencies therefore ...