Ендоскопічна ультрасонографія

Endoscopic Ultrasonography

Endoscopic ultrasonography (EUS) is a gastrointestinal diagnostic procedure that combines endoscopy and ultrasound imaging. This advanced method allows doctors to obtain detailed layered images of the walls of hollow gastrointestinal organs, bile ducts, and the pancreas. The examination helps detect abnormalities at the earliest stages and enables tissue sampling (puncture) for cytological and histological analysis. Endoscopic ultrasonography helps physicians establish an accurate diagnosis quickly and allows patients to receive timely treatment. Various therapeutic procedures and interventions can also be performed under EUS guidance.

Service Description

During endoscopic ultrasonography, a flexible endoscope equipped with a highly sensitive ultrasound probe is carefully inserted through the mouth or rectum, depending on the area being examined. This approach allows the doctor to get as close as possible to the organs under investigation, significantly improving imaging accuracy compared to conventional ultrasound examinations.

The endoscopic system provides detailed two-dimensional and three-dimensional real-time images, allowing the doctor to assess the structure and thickness of the walls of the stomach, esophagus, duodenum, pancreas, bile ducts, and the condition of surrounding tissues, blood vessels, and lymph nodes.

Endoscopic ultrasonography can detect even the smallest tumors, cysts, polyps, microstones, and subtle signs of inflammation that often remain undetected at early stages with other diagnostic methods. This means treatment can begin as early as possible.

Показання до проведення ЕУС

Indications:

  1. Suspected tumors of the esophagus, stomach, duodenum, pancreas, rectum, or adjacent structures;
  2. Assessment of cancer spread and staging;
  3. Evaluation of the possibility of endoscopic removal of gastrointestinal tumors;
  4. Diagnosis of inflammatory pancreatic diseases (pancreatitis);
  5. Detection of bile duct stones;
  6. Assessment of nearby lymph nodes in the abdominal cavity;
  7. Clarification of findings from CT, MRI, or standard ultrasound examinations;
  8. Follow-up after surgeries or treatment;
  9. Diagnostic and therapeutic procedures performed under EUS guidance.

Contraindications:

  1. Acute infectious diseases accompanied by fever;
  2. Severe cardiovascular disorders preventing the procedure;
  3. Significant narrowing of the esophagus or other mechanical obstacles to endoscope insertion;
  4. Blood clotting disorders (for procedures involving biopsy).

Advantages

  • High accuracy due to the close positioning of the probe near the examined organ;
  • Early diagnosis — detection of abnormalities at preclinical stages;
  • Ability to perform biopsy under ultrasound guidance;
  • Assessment of tissue invasion depth in tumor processes.

FAQs

EUS is usually performed under sedation or short-term medicated sleep, so patients generally do not experience discomfort.

The procedure usually lasts 30–60 minutes, depending on the examination area and whether additional manipulations are required.

Yes. Patients are generally advised to avoid food for 6 hours and liquids for 4 hours before the procedure. For rectal examinations, bowel cleansing is required. Your doctor will provide detailed preparation instructions.

Endoscopic ultrasonography combines an endoscopic examination with high-precision ultrasound scanning, allowing the doctor to examine internal organs and tissues in great detail.
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