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Related Concept Videos

Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
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Ultrasound I: Abdominal Ultrasonography01:20

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Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
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This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
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Imaging Studies II: Ultrasonography01:24

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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
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Uterus and Cervix01:18

Uterus and Cervix

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The uterus, commonly called the womb, is a vital reproductive organ in females designed to provide a nurturing environment for the implantation and growth of an embryo. It is shaped like a hollow pear and positioned between the urinary bladder and the rectum. The uterus's structure allows it to support and protect a developing fetus throughout pregnancy.
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A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse
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A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

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First-Trimester Ultrasound.

Jenny Y Mei1, Yalda Afshar2, Lawrence D Platt3

  • 1Department of Obstetrics and Gynecology, University of California, Los Angeles, 10833 Le Conte Avenue, Room 27-139 CHS, Los Angeles, CA 90095, USA.

Obstetrics and Gynecology Clinics of North America
|November 4, 2019
PubMed
Summary
This summary is machine-generated.

High-resolution ultrasound in early pregnancy allows for earlier detection of fetal anatomy and congenital anomalies. Combining transvaginal and transabdominal scans offers the highest detection rate for these conditions.

Keywords:
Anatomic assessmentEarly anatomyFirst trimesterPrenatal screeningUltrasound

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Area of Science:

  • Obstetrics and Gynecology
  • Medical Imaging
  • Fetal Medicine

Background:

  • Advancements in high-resolution transvaginal ultrasound transducers since the 1980s have enhanced early pregnancy evaluations.
  • While numerous indications exist for first-trimester ultrasound, recent focus has shifted towards fetal anatomical assessment.

Purpose of the Study:

  • To evaluate the role and efficacy of first-trimester ultrasound in assessing fetal anatomy.
  • To determine if early anatomical assessment is a standard practice or an option.

Main Methods:

  • Utilizing high-resolution transvaginal ultrasound transducers.
  • Combining transvaginal and transabdominal ultrasound approaches.
  • Reviewing studies on early pregnancy anomaly detection.

Main Results:

  • Early gestational age ultrasound evaluations have significantly improved.
  • A combined transvaginal and transabdominal approach achieves the highest overall detection rate for fetal anomalies.
  • Over half of all anomalies, and nearly all severe anomalies, can be detected in early scans.

Conclusions:

  • First-trimester ultrasound enables earlier diagnosis of congenital anomalies.
  • The combination of transvaginal and transabdominal scans is crucial for maximizing anomaly detection rates.
  • Early anatomical assessment in pregnancy is becoming increasingly important.