Endoscopic ultrasound
Overview of endoscopic ultrasound in medical practice
Endoscopic Ultrasound[edit | edit source]
Endoscopic ultrasound (EUS) is a minimally invasive procedure that combines endoscopy and ultrasound to obtain images and information about the digestive tract and the surrounding tissues and organs. This technique is particularly useful for evaluating the gastrointestinal tract, including the esophagus, stomach, pancreas, and bile ducts.
Procedure[edit | edit source]
During an endoscopic ultrasound, a thin, flexible tube called an endoscope is inserted through the mouth or rectum. The endoscope is equipped with a small ultrasound device at its tip, which emits sound waves to create detailed images of the internal organs. The procedure is typically performed under sedation to ensure patient comfort.
Applications[edit | edit source]
Endoscopic ultrasound is used for a variety of diagnostic and therapeutic purposes, including:
- Staging of cancer: EUS is highly effective in determining the extent of cancer spread, particularly in esophageal cancer, gastric cancer, and pancreatic cancer.
- Evaluation of pancreatic cysts and masses: EUS can help differentiate between benign and malignant cysts and guide fine-needle aspiration for biopsy.
- Assessment of bile duct stones and gallbladder disease.
- Guidance for therapeutic interventions such as cyst drainage and tumor ablation.
Advantages[edit | edit source]
The main advantages of endoscopic ultrasound include its ability to provide high-resolution images of the digestive tract and surrounding structures, its minimally invasive nature, and its capability to guide therapeutic procedures. EUS is often preferred over other imaging modalities like CT scan or MRI for certain conditions due to its superior resolution and ability to perform real-time interventions.
Limitations[edit | edit source]
While EUS is a powerful diagnostic tool, it has limitations. It requires specialized equipment and expertise, and not all medical centers are equipped to perform the procedure. Additionally, EUS may not be suitable for patients with certain anatomical abnormalities or those who cannot tolerate sedation.
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