3D Skeletal System Imaging

What is EOS (3D Skeletal System Imaging)?

EOS (3D Skeletal Imaging) is an advanced X-ray imaging system used to obtain 2D and 3D images of the body's skeletal structure with high resolution and low radiation exposure. EOS is a technology that can provide full-length skeletal images, view patients in natural standing postures, and simultaneously acquire posteroanterior (PA) and lateral views.

What is EOS?

EOS is an advanced X-ray imaging system for 3D skeletal imaging. Manufactured by EOS imaging, the system uses slot scanning technology based on the work of Nobel Prize-winning physicist Georges Charpak on multi-wire proportional chambers. This technology produces high-quality images using less radiation than standard imaging techniques. EOS was developed specifically for orthopaedic imaging, allowing the reconstruction of three-dimensional models with the ability to simultaneously acquire posteroanterior (PA) and lateral views. This provides a major advantage in imaging the spine.

Is EOS Different From CT Scan or X-Ray?

Yes, EOS is different from computed tomography (CT) and X-ray. EOS is a system that can provide full-length skeletal images and uses low doses of radiation. Unlike traditional X-ray and CT scanners, EOS scanners allow patients to be imaged while standing, sitting or squatting and obtain full-size images of the body (up to 175 cm). This eliminates the need for digitally stitching or manual merging of images. The quality and nature of images provided by the EOS system are similar to computed radiography (CR) and digital radiography (DR), but different from CT.

What is EOS Used For?

EOS is used particularly in the diagnosis and follow-up of orthopedic diseases. It plays an important role in the evaluation of skeletal system diseases such as scoliosis, kyphosis, knee and hip disorders. It is also used for surgical planning and postoperative check-ups. EOS allows for a more accurate assessment of skeletal system deformities by imaging patients while standing, sitting or squatting. This provides a clearer understanding of the global balance of the spine and evaluates the influence of pelvic geometry (and therefore the lower extremities) on spinal balance.

Is EOS Secure?

EOS uses lower radiation doses than traditional imaging methods, so it is generally considered a safe method. It is especially advantageous for children and patients who require repeated scans. Children are more sensitive to the harmful effects of radiation and are more likely to develop radiation-induced changes throughout their lives. Therefore, low-dose imaging techniques such as EOS are preferred to reduce radiation dose.

What are the advantages of EOS?

EOS has many advantages:

• Low Radiation Dose: It uses much lower radiation compared to other imaging methods.
• High Resolution: Provides high quality images in both 2D and 3D.
• Natural Posture Imaging: Displays patients in their natural posture while standing, allowing for more accurate assessment of skeletal disorders.
• Fast Scanning Time: Comprehensive images are obtained in a short time.
• Three-dimensional Modeling: EOS enables analysis of individual vertebrae rotation and the rotation of the scoliosis curve with a precision not previously possible.
• Full Body Imaging: Captures full-length images of patients (up to 175 cm), eliminating the need for digital stitching or manual stitching.

How Long Does EOS Shooting Take?

EOS scans typically take a few minutes. A full-body scan takes about 20 seconds for adults, and a spine scan takes 4-6 seconds, depending on the patient's height. These short times make EOS a fast and effective imaging method.

Is EOS Imaging Painful?

No, EOS scanning is painless. Patients simply stand and remain still during the scan, allowing them to complete the procedure without any discomfort. EOS scans are performed with patients maintaining their natural posture, which is a significant advantage, especially for orthopedic evaluations.

When Can I Get EOS Results?

EOS scan results are usually available within a few hours or a few days at the latest. Doctors may need some time to evaluate and report the images, but with EOS’s rapid imaging and processing capabilities, results are usually available quickly.

Are There Any Side Effects of EOS?

There are no known serious side effects of EOS scans. Because the low dose of radiation is used, the risk of side effects is minimal. However, as with any medical imaging method, individual patient circumstances and specific medical conditions must be considered. Given the potential risks of radiation, doctors generally recommend this type of scan only when the benefits outweigh the risks.

Does EOS Cause Radiation Exposure?

Yes, EOS scans also use radiation, but the dose is much lower than traditional CT and X-ray scans. EOS uses less radiation with its slot scanning technology, producing high-quality images. This is a significant advantage, especially for children and patients who require repeated scans. The EOS system provides high-resolution, detailed images while minimizing radiation exposure, making it a safe and effective imaging method.