Gastric Ultrasonography
Gastric Ultrasonography - Related Videos
07:59
Ultrasonography in Experimental Reproductive Investigations on Rats
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Cited by 6 •
2017
This manuscript describes the utility of ultrasound performed on female rats to design experimental models for reproductive and gynecological investigation. A step-by-step explanation of how to perform ultrasonographic evaluation is shown.
01:17
Ultrasonography
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2023
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 a...
03:13
Lymphedema Ultrasonography: A Technique to Measure the Change in Thickness of an Affected Tissue
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2023
This video utilizes ultrasonography for diagnosis and follow-up tests to determine treatment efficacy of Progressive Resistance Exercise (PRE) in breast cancer-related lymphedema (BCRL). Ultrasonography can be applied effectively to ensure diagnosis and treatment of lymphedema.
05:18
Roux-en-Y Gastric Bypass Procedure: A Bariatric Surgical Procedure for Gastric Resectioning in Murine Model
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2025
This video describes a bariatric surgery-Roux-en-Y procedure. This involves the cutting of the jejunum- the middle portion of the intestine- to generate two intestinal limbs. The biliary limb is attached to the existing intestinal loop and the alimentary limb is attached to the stomach, creating a gastric bypass. The gastric bypass created here helps to decrease the nutrient uptake and efficiently reduces body weight.
07:37
Roux-en-Y Gastric Bypass Operation in Rats
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Cited by 45 •
2012
Numerous studies using gastric bypass rat models have been recently conducted to uncover the underlying physiological mechanisms of Roux-en-Y gastric bypass operations. This article aims to demonstrate and discuss the technical and experimental details of our published gastric bypass rat model to understand advantages and limitations of this experimental tool.
FAQs
The low-frequency transducer is important because it supports visualization of the gastric antrum, the standardized region used for assessment. Scanning in standardized positions creates a consistent basis for comparing the antrum across examinations. This focuses the examination on a reproducible sonographic target rather than relying on an undirected survey of the entire stomach.
Fluid, solid food, and an empty stomach produce different sonographic appearances, and the antral cross-sectional area changes accordingly. These observations provide complementary information: visual appearance helps characterize the state of gastric contents, while area measurement supplies a quantitative variable. Together, they support qualitative and quantitative estimates of gastric volume during clinical assessment.
Qualitative assessment relies on the sonographic appearance of the stomach, whereas quantitative assessment uses a measured gastric cross-sectional area. Neither observation is interpreted in isolation from the clinical setting. Together, they support estimates of gastric volume and allow clinicians to use visual findings and measurements as complementary forms of information during bedside assessment.
Gastric ultrasonography can support assessment of gastric emptying because the sonographic appearance and measured antral area vary as the stomach changes from containing material toward an empty state. Repeated bedside observations can therefore provide information about changing gastric contents and volume. This makes the technique relevant to evaluations of gastrointestinal motility as well as individual examinations.
A practical examination centers on the antrum: the operator uses a low-frequency transducer, scans in standardized positions, observes the sonographic appearance, and measures the gastric cross-sectional area when quantitative information is needed. The findings are then considered in relation to whether the stomach appears empty or contains fluid or solid food. This workflow supports bedside decision-making.
Before anesthesia, the clinically important output is an estimate of whether gastric contents may indicate aspiration risk. Gastric ultrasonography can add information when clinicians need to make perioperative decisions, particularly when direct examination is not possible. Its bedside and noninvasive format allows assessment at the point of care and supports decisions based on the observed gastric state.
In medicine, the technique has value beyond immediate perioperative assessment. Its repeatable, noninvasive bedside format supports point-of-care evaluation and clinical research, while measurements of antral area and changes in sonographic appearance can be used to study gastrointestinal motility. The same observations can therefore inform an individual clinical decision and contribute to investigation of gastric emptying patterns.