超聲波
Also known as ultrasonic waves
频率超过人耳可以听到的最高阈值的声波
AI overview
# Ultrasound Overview Ultrasound is a medical examination technique that uses sound waves to create images of the inside of the body. It matters because it allows doctors to visualize internal structures and organs non-invasively, helping them diagnose conditions and monitor health without requiring surgery or radiation exposure.
AI-generated from the Wikipedia summary — may contain errors.
Research
2,271,692 papers- Lung ultrasound in the critically ill.ReviewCurrent opinion in critical care · 2014Lichtenstein DDOI: 10.1097/MCC.0000000000000096
- High intensity focused ultrasound technology, its scope and applications in therapy and drug delivery.ReviewJournal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques · 2014Phenix CP, Togtema M, Pichardo S et al.DOI: 10.18433/j3zp5f
- Ultrasound molecular imaging.ReviewMethods (San Diego, Calif.) · 2009Voigt JUDOI: 10.1016/j.ymeth.2009.03.011
- Bedside ultrasound procedures: musculoskeletal and non-musculoskeletal.Review
Article · 中文
超声波（英語：Ultrasound），是指任何聲波或振動，其頻率超過人類耳朵可以聽到的最高閾值20kHz（千赫）。超音波由於其高頻特性而被廣泛應用於醫學、工業、情報等眾多領域。 某些動物，如狗隻、海豚、以及蝙蝠等都有著超乎人類的耳朵，也因此可以聽到超声波。亦有人利用這個特性製成能產生超音波來呼喚狗隻的。 人類聽覺能察覺的波動，稱之為聲音，此時之音波稱為可聽波。而所謂超音波，物理性質與與可聽波相同，只能透過具有彈性與慣性介質（如空氣），其利用空氣分子產生膨脹或壓縮的運動而傳播其波動；因此，音波與超音波均無法在真空中傳播。
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