Applications of real-time ultrasound in obstetrics: the linear and dynamically focused phased arrays

Journal of Clinical Ultrasound : JCU
C L MorganW M Clark


Real-time ultrasound is a dynamic imaging technique that allows in utero orientation to the fetus. It permits rapid and efficient examination of fetal anatomy and provides a dynamic assessment of fetal well-being. The energy dissipation can be comparable to that in conventional ultrasonic B-mode scanning. We have used both linear and dynamically focused phased arrays for fetal examinations in conjunction with conventional gray scale B-mode scanners. The sophisticated phased-array real-time systems have demonstrated higher resolution and an improved gray scale as compared with the linear arrays. Applications of real-time ultrasound in obstetrics are discussed, and appropriate clinical examples are cited that illustrate the value of the technique for study of both normal and abnormal fetal development. We believe that this technique is the most sensitive method of detecting intrauterine fetal demise. The relative advantages and disadvantages of linear and dynamically focused phased arrays in obstetric evaluation are considered.


Jun 1, 1977·Clinical Obstetrics and Gynecology·S Campbell
Dec 1, 1978·Journal of Clinical Ultrasound : JCU·C L MorganF L Thurstone
Dec 1, 1977·Clinical Obstetrics and Gynecology·J C Hobbins, R L Berkowitz
Jun 1, 1977·Clinical Obstetrics and Gynecology·H E Fox, C W Hohler
Mar 1, 1978·AJR. American Journal of Roentgenology·J C BirnholzM Faria
Mar 1, 1978·AJR. American Journal of Roentgenology·C L MorganT K Barton
May 1, 1978·Radiology·P L Cooperberg, C W Carpenter
Mar 1, 1978·Obstetrics and Gynecology·S G Anderson
Apr 1, 1976·Journal of Clinical Ultrasound : JCU·J C HobbinsJ Webster
Dec 1, 1976·Journal of Clinical Ultrasound : JCU·P L CooperbergS Austin
Jun 1, 1975·Journal of Clinical Ultrasound : JCU·H EgebladA Northeved
Sep 1, 1975·British Journal of Obstetrics and Gynaecology·S Campbell, D Wilkin
Oct 1, 1975·Ultrasound in Medicine & Biology·H H HolmA Northeved
Feb 1, 1976·Circulation·O T vonRamm, F L Thurstone
Nov 1, 1973·Circulation·N BomJ Roelandt
Jun 1, 1974·Circulation·J M Griffith, W L Henry
May 1, 1972·Investigative Radiology·F Winsberg
Oct 1, 1971·Obstetrics and Gynecology·W J Garrett, D E Robinson
Oct 1, 1967·Indian Journal of Pediatrics


May 1, 1981·Journal of Clinical Ultrasound : JCU·L BovicelliP Carderoni
Jul 1, 1981·Journal of Clinical Ultrasound : JCU·K A GodfreyT Lind

Related Concepts

Structure of Amnion
Central Nervous System
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Fetal Growth Retardation
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Discipline of Obstetrics

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