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2. 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 ...

3. Pre-hospital ultrasound - Wikipedia

   en.wikipedia.org/wiki/Pre-hospital_ultrasound

   This means that in terms of trauma diagnosis involving brain injury, sonography will be difficult and requires high-end ultrasound machines. [citation needed] The depth penetration of ultrasound is limited, making it difficult to image structures deep in the body, especially in obese patients. [citation needed] The method is operator-dependent.

4. Focused ultrasound - Wikipedia

   en.wikipedia.org/wiki/Focused_ultrasound

   HIFU beams are precisely focused on a small region of diseased tissue to locally deposit high levels of energy. Focused ultrasound may be used to generate highly localized heating to treat cysts and tumors (benign or malignant). This is known as Magnetic Resonance guided Focused Ultrasound (MRgFUS) or High Intensity Focused Ultrasound (HIFU).

5. Medical ultrasound - Wikipedia

   en.wikipedia.org/wiki/Medical_ultrasound

   The machine used is called an ultrasound machine, a sonograph or an echograph. The visual image formed using this technique is called an ultrasonogram, a sonogram or an echogram. Ultrasound of carotid artery. Ultrasound is composed of sound waves with frequencies greater than 20,000 Hz, which is the approximate upper threshold of human hearing. [1]

6. Low-intensity pulsed ultrasound - Wikipedia

   en.wikipedia.org/.../Low-intensity_pulsed_ultrasound

   Low-intensity pulsed ultrasound (LIPUS) is a technology that can be used for therapeutic purposes. It exploits low intensity and pulsed mechanical waves in order to induce regenerative and anti-inflammatory effects on biological tissues, such as bone, [ 1 ] cartilage, and tendon. [ 2 ]

7. Transcranial Doppler - Wikipedia

   en.wikipedia.org/wiki/Transcranial_Doppler

   The ultrasound probe emits a high-frequency sound wave (usually a multiple of 2 MHz) that bounces off various substances in the body. These echoes are detected by a sensor in the probe. In the case of blood in an artery , the echoes have different frequencies depending on the direction and speed of the blood because of the Doppler effect . [ 2 ]