ONSIGHT 3D EXTREMITY SYSTEM

A cone beam CT scan is a noninvasive diagnostic procedure that uses an advanced x‐ray technology to produce detailed 3 dimensional cross‐sectional images of your extremities.

The surgeon will order a CBCT exam to help diagnose and treat a variety of conditions of the bone and soft tissue in upper and lower extremities.

The actual scan will take about 25 seconds but the complete exam, including getting you positioned, will be about 15 minutes. However, our experience at Resurgens has been ~10 mins.

Yes, while the scan is taking place you will need to remain still. The OnSight system has a patient display monitor that counts down the scanning time so you can easily see the time left in the exam. For standing exams, there are immobilization accessories and patient support handles to help you remain still during the scan.

No, only the effected body part is placed in the imaging bore. The OnSight system also has a patient access door so you can easily step into and out of the system for standing exams.

Yes, there is no issue with getting a CBCT exam with metal in your extremity but you should let the technologist know of the presence of metal. The OnSight system is equipped with special software to reduce the artifacts associated with imaging metal.

Both procedures use X‐rays. A traditional X‐ray produces a 2 dimensional view of the extremity whereas a CBCT exam produces a 3 dimensional image providing significantly more information to your surgeon.

While both of these equipment types fall into the computed tomography (CT) category, there are some big differences between them. Traditional CT exams are performed with the patient lying on an imaging table that is moved through the bore of the CT machine. As the table moves through the bore, individual slices of the anatomy are captured and used to create a 3 dimensional image of the anatomy.

In a CBCT scan, the part being imaged is positioned in the system and images of the complete anatomy are captured in a single rotation. One of the advantages of a CBCT scan over a traditional scan is examinations of the lower extremity joints can be perform under the patient's natural load. This allows the surgeon to get important information that they couldn't obtain in a traditional CT exam. The result is a 3 dimensional data set that your doctor will use to make a proper treatment path.

The radiation dose is also lower with a CBCT scans as only the affected limb is imaged.

In a CBCT exam, only the affected limb is imaged while in a CT exam, typically the non affected limb also gets imaged. In this scenario, the radiation exposure is reduced by 50% when imaged on the OnSight System.

Wear comfortable, loose‐fitting clothing to your exam. You may be given a gown to wear during the scan. Metal objects including jewelry may affect the exam and should be left at home or removed prior to your exam.