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New imaging technique helps patients

Bolingbrook, IL – Adventist Bolingbrook Hospital recently celebrated another milestone with the completion of a new, highly-detailed diagnostic test not available at any other Will County hospital. Dr. Kamran Ayub, a gastroenterologist, performed an endoscopic ultrasound-guided, fine-needle aspiration of the pancreas on a patient on March 27. Endoscopic ultrasound (EUS) combines endoscopy and ultrasonography to allow accurate imaging of tumors and lesions located within the gastrointestinal (GI) wall and adjacent areas. EUS-guided, fine-needle aspirations can be performed at the same time to confirm tumor diagnosis and staging.

Adventist Bolingbrook Hospital’s patient, who had a history of melanoma and breast cancer, had recently undergone a CAT scan and MRI when doctors noticed small cysts in her pancreas. Ayub performed the 20-minute procedure to examine the cysts; he and his team determined they were benign.

“As a diagnostic test, endoscopic ultrasound is much better than a CAT scan or simple endoscopy in evaluating cysts and lymph nodes, staging cancers and getting a tissue diagnosis,” Ayub said. “It also is the best procedure to evaluate cystic lesions.”

A relatively new procedure, EUS was introduced in the United States in 1986 and has developed into an important modality for the diagnosis and staging of benign and malignant lesions. Fine-needle aspirations became possible in 1991. EUS is particularly useful for staging cancers of the esophagus, stomach, lung, pancreas and rectum. With respect to esophageal, gastric and rectal cancer, it is the single best modality for staging and determining the depth of tumor infiltration and lymph node involvement.

“This is an example of the kind of advanced technology we’re bringing to Will County and beyond,” said Rick Mace, CEO of Adventist Bolingbrook Hospital. “Our patients can now receive care normally associated with academic hospitals right here in Bolingbrook.”

EUS provides detailed images of the GI tract and surrounding structures with a resolution better than other imaging modalities. The procedure allows high-resolution imaging of lesions as small as 0.2 mm in size.

Because it can be done on an outpatient basis and takes about a half hour to perform, EUS is very convenient for patients. The patient is given conscious sedation similar to that used for colonoscopy.

The March 27 procedure was the first EUS performed at Adventist Bolingbrook Hospital, which opened in January.


Adventist Midwest Health includes Adventist Bolingbrook Hospital, Adventist GlenOaks Hospital, Adventist Hinsdale Hospital and Adventist La Grange Memorial Hospital.  To find a physician, visit