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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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Related Experiment Video

Updated: Feb 9, 2026

Author Spotlight: Advancing Biopsy Techniques with Transesophageal Ultrasound
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Endoscopic ultrasonography.

G Caletti1, P Fusaroli

  • 1Dept. of Medicine and Gastroenterology, University of Bologna, Italy. caletti@med.unibo.it

Endoscopy
|March 19, 1999
PubMed
Summary
This summary is machine-generated.

Endoscopic ultrasonography is a versatile diagnostic and therapeutic tool. It aids in disease detection, cytological confirmation, and treatment, with established uses in cancer staging and lesion visualization.

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Area of Science:

  • Gastroenterology
  • Medical Imaging

Background:

  • Endoscopic ultrasonography (EUS) is a minimally invasive imaging technique.
  • It combines endoscopy with ultrasound for detailed visualization of gastrointestinal walls and adjacent organs.

Purpose of the Study:

  • To outline the diverse applications of endoscopic ultrasonography.
  • To highlight its role in diagnosis, cytology, and therapy.

Main Methods:

  • Review of current applications and indications for EUS.
  • Categorization of EUS procedures into diagnostic and therapeutic categories.

Main Results:

  • EUS applications include standard diagnostics, fine-needle aspiration, and therapeutic interventions.
  • Established indications: esophageal/rectal cancer staging, submucosal lesions, gastric wall diseases.
  • Emerging indications: pancreas and biliary tree imaging.

Conclusions:

  • Endoscopic ultrasonography is a powerful, integrated technique for disease diagnosis and management.
  • Its utility spans from initial suspicion to definitive treatment and confirmation.