Endobronchial Ultrasound (EBUS)

Endobronchial Ultrasound (EBUS) is a relatively new procedure used in the diagnosis of lung cancer, infections, and other diseases causing enlarged lymph nodes in the chest. Since 2013, we have been proud to be one of the few centers in New England to offer EBUS, a minimally invasive procedure that has proven highly effective.

What is EBUS Used For?

EBUS allows physicians to perform a technique known as transbronchial needle aspiration (TBNA) to obtain tissue samples from the lungs and surrounding lymph nodes without conventional surgery. The samples can be used for diagnosing and staging lung cancer, detecting infections, and identifying inflammatory diseases that affect the lungs, such as sarcoidosis or other cancers like lymphoma.

The  Two Types of EBUS:  Linear and Radial

Linear EBUS is a minimally invasive procedure used in the diagnosis of mediastinal masses, central lung masses and enlarged mediastinal lymph nodes from benign and malignant diseases. EBUS is also used in mediastinal staging of lung cancer. Dr. Rabih El-Bizri, Director of Bronchoscopy, performs the procedure at Roger Williams with occasional assistance from Dr. Jody Meharg.

During the Linear EBUS procedure, a special bronchoscope fitted with an ultrasound transducer is introduced through the mouth into the airways. The EBUS allows real-time visualization of Lymph nodes and masses in close contact with the airways. Once the physician locates the lymph node or the mass, the physician can perform real-time EBUS guided needle aspiration to obtain a sample without having to make any incisions.

Radial EBUS enables access to peripheral pulmonary nodules or masses not accessible by regular bronchoscope. This type of EBUS is performed by inserting an ultrasound miniature probe through the instrument channel of a standard bronchoscope to assist in finding the location of the tumor. After locating the mass or nodule, a biopsy is performed under fluoroscopic guidance.

Both types of EBUS are performed under general anesthesia or conscious sedation in an outpatient setting. The sample is analyzed by onsite cyto-pathologist who provides immediate feedback on the specimen.

What Makes EBUS Different Than Mediastinoscopy?

EBUS is a minimally invasive procedure that does not require a surgical incision in the neck. EBUS can access more lymph node stations than Mediastinoscopy and the rate of complications is lower with EBUS than Mediastinoscopy.

Why You Should Consider A Referral For EBUS

Referral for EBUS is indicated when patients require the least invasive diagnostic modalities and to minimize the number of invasive procedures. For example: If a patient has a lung mass and mediastinal lymphadenopathy, combining the Linear and Radial EBUS would provide a diagnosis and mediastinal staging during the same visit.

The Endoscopy staff at Roger Williams is experienced and competent in both EBUS and Endoscopic Ultrasound. If your physician believes you may benefit from EBUS, please have them call 401-456-5714 and speak with Sandra to schedule an appointment with Dr. Rabih El-Bizri.

Dr. Rabih El-Bizri

Pulmonologist