Endoscopic ultrasound (EUS) is a minimally invasive procedure to assess diseases of the digestive (gastrointestinal) tract and other nearby organs and tissues.
What does an EUS look for?
An endoscopic ultrasound (EUS) procedure examines the inside of your digestive tract. It can detect pancreatic cancer, colon cancer, as well as cancer that’s spread to other parts of your body. EUS can also detect inflammatory bowel disease (IBD), pancreatitis and other causes of abdominal pain.
What is the difference between endoscopy and EUS?
A regular endoscope is a thin, lighted tube that can be inserted through the mouth or anus to view inside your esophagus, stomach or intestines. EUS uses a special endoscope with a small ultrasound device on its tip, called an echoendoscope.
What is the difference between EUS and ERCP?
They both involve the use of an endoscope but they are not entirely the same. The major difference between EUS and ERCP is that endoscopic ultrasound uses high-frequency sound waves to create images while ERCP uses a video camera and x-ray imaging to create images.
What is an EUS? – Related Questions
Is EUS better than MRI?
However, using EUS has an advantage over using CT or MRI in distinguishing between benign PCLs and malignant or potentially malignant lesions[13,14]. The images produced using EUS are higher in resolution[15,16], which we speculate may be related to its ability to show the detailed structures of PCNs.
Is EUS better than MRCP?
A recent meta-analysis compared accuracy of EUS and MRCP for diagnosing choledocholithiasis in head-to-head studies. 1 This meta-analysis of 5 studies showed significantly higher pooled sensitivity of 97% (95% CI 91% to 99%) for EUS compared with 87% (95% CI 80% to 93%) for MRCP (p=0.006).
Is EUS less invasive than ERCP?
Since both techniques revolve around the use of an endoscope, the risks for both procedures are essentially the same. There is no added risk to the patient from the ultrasound or video recorder. The only extra risk is the potential for infection from fine needle aspiration during endoscopic ultrasound.
Can EUS and ERCP be done together?
They concluded that combined EUS and ERCP is a feasible approach to establish a tissue diagnosis, complete local staging and relieve biliary obstruction in a single session with a complication rate no greater than that for the component procedures.
Is ERCP procedure the same as endoscopy?
Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure that combines upper gastrointestinal (GI) endoscopy and x-rays to treat problems of the bile and pancreatic ducts.
Why would a doctor order an EUS?
Your doctor can use EUS to diagnose certain conditions that may cause abdominal pain or abnormal weight loss. EUS is also used to evaluate known abnormalities, including lumps or lesions, which were detected at a prior endoscopy or were seen on x-ray tests, such as a computed tomography (CT) scan.
Are you put to sleep for an EUS?
You will be given medicine through the IV to make you relaxed and sleepy. When you are sleepy, the doctor will place a thin, flexible tube (endoscope) through the mouth guard and into your mouth. The endoscope has a small video camera on the end that lets the doctor see the inside of your G.I. tract.
How accurate is EUS pancreas?
Overall, the sensitivity of EUS for detecting pancreatic tumors is 94% (n = 1170), which is consistently higher than that of computed tomography (CT) and transabdominal ultrasound (US) [5].
Is EUS done under general anesthesia?
EUS is usually performed under IV anesthesia (Propofol). Since the patient may feel drowsy after the procedure, arrangements should be made by the patient in advance to have someone else drive him/her home.
How long does EUS procedure take?
You will be lying on your side for your endoscopic ultrasound and the flexible tube will be passed into your mouth and throat into the upper digestive tract. The test takes approximately 1 hour to complete.
How do I prepare for an EUS procedure?
- You may have diet and/or medication restrictions the week before the EUS test.
- You will not be allowed any heavy meal for at least 8 hours before the procedure, light meals or opaque liquids for 6 hours before, or clear liquids for at least 2 hours before.
- Plan to take the day off from work.
What are the risks of EUS?
The major complications associated with EUS-FNA include hemorrhage, perforation, infection, and organ-specific complications, such as acute pancreatitis after puncture for pancreatic lesions. Recent reports have also occasionally described needle tract seeding (NTS) as a complication of EUS-FNA.
How long is EUS recovery?
The recovery period usually lasts between 20 minutes to 1 hour. Before you are discharged home, you will have an opportunity to meet with your physician to discuss the results of the EUS, and receive further instructions regarding your medications.
Can EUS remove pancreatic cyst?
EUS-EP was shown to be a safe and effective method for treating cystic tumors of the pancreas [36]. In a subsequent larger study, also by Oh et al, the inhibitory effects of ethanol and paclitaxel were studied in 52 patients over a long-term follow up of more than 1 year [37].
How do you feel after EUS?
It is normal to experience bloating and mild abdominal discomfort for a few days after the procedure. It is normal to have discomfort in your throat or oesophagus for a few days after the procedure. You can take painkillers to relieve this. You are advised to go on a soft bland diet for 24 hours.
Can EUS diagnose pancreatitis?
EUS is helpful in the evaluating patients with AIP and in diagnosing CP. In patients with AIP, EUS enables the diagnosis of occult cholelithiasis, pancreas divisum, chronic pancreatitis or an occult neoplasm. While EUS may be more sensitive than ERCP in diagnosing CP, the specificity is limited in early stages.