First-trimester sonography: Is the fetus exposed to high levels of acoustic energy?

Purpose. As a form of energy, diagnostic ultrasound has bioeffects on living tissues. The thermal index (TI), TIS (TI for soft tissue), TIB (TI for bone), TIC (TI for cranial bone) expresses the potential for rise in temperature at the ultrasound beam's focal point. The mechanical index (MI) in...

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Veröffentlicht in:	Journal of clinical ultrasound 2007-06, Vol.35 (5), p.245-249
Hauptverfasser:	Sheiner, Eyal, Shoham-Vardi, Ilana, Hussey, Michael J., Pombar, Xavier, Strassner, Howard T., Freeman, Jody, Abramowicz, Jacques S.
Format:	Artikel
Sprache:	eng
Schlagworte:	acoustic output Acoustics Adolescent Adult Body Temperature early pregnancy Female Gestational Age Humans mechanical index Pregnancy Pregnancy Trimester, First Prospective Studies safety thermal index Thermography Time Factors Ultrasonography, Prenatal - adverse effects ultrasound
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