Titlebook: Doppler Ultrasound in Obstetrics and Gynecology; Dev Maulik Book 20052nd edition Springer-Verlag Berlin Heidelberg 2005 Doppler Sonography

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Physical Principles of Doppler Ultrasonography,onography, which are essential for understanding their diagnostic uses. Although this book focuses primarily on clinical utilization of the diagnostic Doppler technology, developing an understanding of the basic principles is imperative for its proficient use. The following is a brief introduction a

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ANTI

Spectral Doppler Sonography: Waveform Analysis and Hemodynamic Interpretation,tral information consists of three fundamental variables: frequency, amplitude, and time. Spectral frequency reflects the speed of blood flow. The amplitude approximately represents the number of scatterers traveling at a given speed and is also known as the power of the spectrum. Amplitude depends

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Venous Hemodynamics,s of our Doppler recordings are still incompletely understood. The present chapter is not intended to solve all that, but rather to address important hemodynamic issues from a clinical point of view to help clinicians use and interpret venous Doppler recordings. For the interested reader more extens

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Sonographic Color Flow Mapping: Basic Principles,s of this book, application of this technique to obstetric and gynecologic imaging has proved highly useful. A prerequisite for optimal utilization of this technique is an in-depth knowledge of its principles and limitations. Furthermore, it is important to appreciate that the appearance of color fl

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Umbilical Doppler Velocimetry: Normative Data and Diagnostic Efficacy,the fetal circulation. The attention paid to this vessel may be explained partly by its ready accessibility to Doppler interrogation, even without guidance by duplex imaging, and because it is a vital component of the fetal circulation, acting as the lifeline between the fetus and the placenta. Nume

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Doppler Velocimetry and Hypertension,mission to hospital or induction of labor for suspected placental insufficiency. It can also be used in primary health care settings to differentiate between a normal fetus with poor growth and placental insufficiency.

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Spectral Doppler: Basic Principles and Instrumentation,r fetal application. For umbilical arterial hemodynamic assessment, simpler, substantially less expensive CW Doppler equipment with a spectral analyzer may be sufficient. It is essential therefore that one develop a basic understanding of the implementation of Doppler ultrasound technology.