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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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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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Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
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Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
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Related Experiment Video

Updated: Nov 18, 2025

Murine Fetal Echocardiography
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[Postmortem sonography helpful in death of unknown origin].

T Thomsen1, C F Dietrich2

  • 1Klinik für Innere Medizin, Westküstenkliniken, Brunsbüttel, Deutschland.

Medizinische Klinik, Intensivmedizin Und Notfallmedizin
|February 9, 2021
PubMed
Summary

Postmortem sonography, or ultrasound, can clarify unclear causes of death within three hours after death. This imaging technique shows value despite concerns about postmortem gas formation.

Keywords:
Mesenteric ischemiaPericardial tamponadePostmortem coagulationPostmortem imagingTissue autolysis

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Area of Science:

  • Medical imaging
  • Forensic medicine
  • Diagnostic ultrasound

Background:

  • Postmortem imaging, including x-ray, CT, and MRI, has been utilized in forensic medicine since 1895.
  • Conventional imaging modalities are standard in postmortem examinations.
  • Sonography is often disregarded due to postmortem gas formation, limiting its perceived diagnostic value.

Purpose of the Study:

  • To evaluate the utility of postmortem sonography in clarifying causes of death.
  • To investigate the effectiveness of early postmortem sonography in specific clinical scenarios.

Main Methods:

  • Case series reporting three instances of postmortem sonography.
  • Ultrasound examinations were performed within three hours of death.

Main Results:

  • Postmortem sonography successfully clarified the previously unclear cause of death in all three reported cases.
  • The findings demonstrate the feasibility and diagnostic potential of early postmortem ultrasound.

Conclusions:

  • Sonography can be a valuable tool in postmortem examinations, even in the presence of expected postmortem changes.
  • Early application of postmortem sonography offers diagnostic advantages in specific forensic cases.