Gastroscopy, colonoscopy & capsule endoscopy

Endoscopy is a procedure used to evaluate the digestive tract. It involves inserting a tiny camera into the body to visualise the digestive organs. A camera is mounted at the end of a flexible tube, which is inserted through the mouth into the stomach or through the anus into the colon.

An endoscopy is used to investigate problems such as abdominal pain, diarrhoea, constipation or blood in the stools. It can also screen an individual for colon cancer, esophageal cancer and stomach cancer.

At Nobel Gastroenterology Centre, we perform endoscopy using high-definition cameras that can highlight even subtle abnormalities. This increases our ability to make an accurate diagnosis. We perform the following procedures:

  1. Gastroscopy (stomach)
  2. Colonoscopy (large intestine)
  3. Capsule endoscopy (small intestine)
  4. Enteroscopy (small intestine)
  5. ERCP (bile duct stones and cancer)
  6. Endoscopic ultrasound (other organs, e.g. pancreas)

If you are interested in an endoscopy or a cancer screening procedure, contact us for an appointment. Individuals with a family history of cancer or polyps, may benefit from a screening endoscopy.

Gastroscopy (Esophagogastroduodenoscopy)

A gastroscopy is performed to investigate abdominal pain, acid reflux, bloating, weight loss and anaemia (low haemoglobin blood count). Organs such as the stomach and gullet (esophagus) are examined for inflammation, ulcers and cancer.

A Gastroenterologist inserts a tiny camera that is mounted at the end of a slender tube into the patient’s mouth. It is directed into the stomach and duodenum (beginning of the small intestine) to inspect the organs. A tiny biopsy is taken from the stomach to screen for Helicobacter pylori infection. If an abnormal growth such as a polyp is present, it can be removed. This procedure is safe and performed under sedation to provide comfort.


A colonoscopy is used to evaluate patients with a change in bowel habit, abdominal pain, diarrhoea, blood in their stool, weight loss and anaemia. Polyps or abnormal growths in the colon can be removed. This is performed because polyps can turn into cancer. If inflammation is present, biopsies can be taken for analysis.

A Gastroenterologist inserts a camera that is mounted at the end of a flexible tube into the colon from the anus. Our endoscopy centres are equipped with new generation colonoscopes that are slimmer and more flexible. This permits a safer and more comfortable procedure. Sedation is given during a colonoscopy, to provide comfort.

Wireless Capsule Endoscopy

Wireless capsule endoscopy is used to examine the small intestine for ulcers, inflammation and cancer. The capsule is shaped and sized like a vitamin pill. This device has a tiny camera, which captures ten hours of video as it travels through the intestines.

A patient is given the special pill to swallow with a glass of water. It will travel along the digestive tract, following the same route that is taken by the food that we eat. After the test has completed, a Gastroenterologist will review the video recording on a computer.

Advanced Endoscopy Procedures

We offer several advanced procedures at Nobel Gastroenterology Centre. They are complex and require a higher level of expertise.

  • Enteroscopy is a procedure that checks the small intestine for cancer, ulcers and inflammation.
  • ERCP is a procedure which removes gallstones that are trapped in the bile duct (bile duct stones). Individuals with this problem experience right-sided abdominal pain with jaundice (yellow eyes and tea-coloured urine). ERCP can be used to open up a narrowing (stricture) in the bile duct. This often occurs because there is a bile duct cancer or pancreas cancer.
  • Endoscopic ultrasound (EUS) uses sound waves to examine the abdomen. A special probe is inserted into the stomach, allowing the doctor to scan the organs in the abdomen. EUS is commonly used to examine the pancreas (e.g. cancer, cyst). It allows tissue to be obtained for abnormal areas for further analysis.

Doctor’s Profile

Dr Wang Yu Tien joins us with nearly 20 years of experience from Singapore General Hospital where he was senior consultant, director of research and a faculty of senior resident training at the department of Gastroenterology and Hepatology. He is experienced in managing the full spectrum of gastrointestinal and liver diseases as well as endoscopy. His subspecialty interest is digestive function disorders (e.g. Gastroesophageal Reflux and Irritable Bowel Syndrome). He was also the former director of the Gastrointestinal Function Laboratory at Singapore General Hospital and past Scientific Chairperson of the Gastroenterology Society of Singapore. He has published in top gastroenterology journals and is the current Gastroenterology specialty editor of Singapore Medical Journal.

dr wang yu tien consultant gastroenterologist

Doctor’s Profile

Dr Eric Wee is a Gastroenterologist who manages all aspects of digestive, bowel and liver conditions. His subspecialty is in advanced endoscopy. Dr Wee is a member of the Royal College of Physician (UK), member of the American Gastroenterology Association (USA), member of the Faculty of Medical Experts (Academy of Medicine) and a fellow of the Academy of Medicine (Singapore). He has held senior appointments such as the Head of the Division of Gastroenterology at Khoo Teck Puat Hospital, Chairman of the Nutrition workgroup and Associate Program Director of the NHG Gastroenterology Residency Program.

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