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Related Concept Videos

Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

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Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
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.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
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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.
During an ultrasonography procedure, a handheld device called...
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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

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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

Ultrasound II: Endoscopic Ultrasound and FibroScan

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Assessment of the Abdomen I: Inspection and Auscultation01:25

Assessment of the Abdomen I: Inspection and Auscultation

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Introduction
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection....
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Related Experiment Video

Updated: Mar 29, 2026

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
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Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction

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The Routine 36-Week Scan-Is It Time for a Change in Policy and Practice? The Arguments for a Routine Third Trimester

Hamish Buntain1, Sailesh Kumar2,3, Cristiane De Freitas Paganoti4

  • 1School of Medicine and Dentistry, Griffith University, Gold Coast University Hospital, Gold Coast, Queensland, Australia.

The Australian & New Zealand Journal of Obstetrics & Gynaecology
|March 27, 2026
PubMed
Summary
This summary is machine-generated.

Third trimester ultrasounds are increasingly used in Australia, offering benefits like detecting fetal growth issues and malpresentation. Further research may justify routine 36-week ultrasounds for low-risk pregnancies.

Keywords:
large for gestational age infantprenatal diagnosisprenatal ultrasonographysmall for gestational age infantthird pregnancy trimester

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Area of Science:

  • Obstetrics and Gynecology
  • Medical Imaging

Background:

  • The hybrid maternity care model in Australia is increasingly incorporating third trimester ultrasounds.
  • There is growing recognition of the value of these ultrasounds, even within publicly funded healthcare.

Purpose of the Study:

  • To evaluate the benefits and drawbacks of third trimester ultrasound in Australian pregnancies.
  • To consider the role of routine 36-week ultrasounds in low-risk pregnancies.

Main Methods:

  • Review of emerging evidence on third trimester ultrasound.
  • Analysis of potential benefits (e.g., detection of fetal abnormalities) versus concerns (e.g., cost-effectiveness, unnecessary interventions).

Main Results:

  • Emerging evidence suggests improved detection of fetal growth abnormalities, malpresentation, and structural anomalies.
  • Concerns regarding cost-effectiveness and potential for unnecessary interventions exist.

Conclusions:

  • The benefits of third trimester ultrasound, such as improved perinatal outcomes, must be weighed against potential downsides.
  • Evolving research suggests a need to reconsider the role of routine 36-week ultrasounds in low-risk Australian pregnancies.