EOS (3D Skeletal System Imaging)

EOS Imaging is a revolutionary technology that creates detailed 3D skeletal imaging of the entire skeleton using an exceptionally low dose of radiation. This advanced system allows medical professionals to view a patient’s full skeletal structure in a natural, weight-bearing position.

Compared to traditional X-rays, it offers a safer and more comprehensive alternative. The system’s low-dose imaging capability significantly reduces a patient’s overall radiation exposure, which is a major advantage for individuals needing regular follow-up scans. This makes it an ideal choice for monitoring skeletal conditions over time with minimal risk.

What is EOS Imaging?

EOS Imaging uses a unique biplanar imaging technique to simultaneously capture frontal and lateral views of the skeleton. This is done while the patient is in a natural, weight-bearing position, providing a more accurate assessment of the skeletal structure under real-life conditions. The system is based on a Nobel Prize-winning invention and employs a slot-scanning method where two narrow X-ray beams scan the body. This precise technique significantly reduces radiation exposure, making it a much safer alternative to conventional X-rays and CT scans, especially for patients who need regular monitoring.

What are the features of EOS Imaging?

EOS Imaging has advanced features that stand out in skeletal system evaluation. The main advantages of this system are:

• Very Low Radiation Dose: It significantly reduces the radiation dose a patient is exposed to compared to traditional X-ray and CT scans. This feature provides a major safety advantage, especially for children and patients requiring regular follow-up.
• High-Resolution 2D and 3D Images: The system provides detailed two-dimensional images and allows for the creation of precise 3D models. These three-dimensional models enable physicians to analyze the skeletal structure in greater depth to accurately identify deformities and abnormalities.
• Imaging in Weight-Bearing Positions: EOS can perform imaging while patients are in natural weight-bearing positions (such as standing). This approach allows for the evaluation of skeletal alignment and function under the body’s natural load, playing a critical role in diagnosing postural disorders.
• Full-Body Scan: It scans the entire body from head to toe in a single pass, eliminating the need for multiple shots. This holistic view provides great convenience in evaluating overall skeletal balance and complex conditions.

In which diseases can it be used?

EOS Imaging is crucial for various orthopedic and spinal evaluations, particularly for scoliosis diagnosis and monitoring deformities like kyphosis. Its ability to create precise 3D models allows clinicians to track disease progression and plan treatments effectively. The system is also used to assess leg length discrepancies and alignment issues in the hips and knees, with the advantage of imaging in a natural, weight-bearing position. This detailed view is vital for pre-surgical planning, which optimizes outcomes in procedures like hip replacements and complex spine surgeries. Its low-dose nature also makes it ideal for post-operative assessments, reinforcing its role in thorough orthopedic and spinal evaluations and confirming a scoliosis diagnosis over time.

Which method is used for EOS Imaging?

EOS Imaging uses a special method called ‘slot-scanning.’ In this technique, two thin X-ray beams scan the patient’s body vertically. While traditional X-ray systems spread radiation over a wide area, the slot-scanning approach focuses the radiation only on the targeted region. This precise method significantly reduces radiation exposure and scatter, which is how the innovative low-dose imaging technique achieves a 50% to 85% reduction in radiation dose compared to conventional radiography. This makes it a much safer alternative, especially for patients who require regular follow-up.

How is it applied?

The EOS Imaging procedure is a simple and comfortable experience. The patient enters a specialized scanning cabin and is asked to stand or sit still for just a few seconds. This position allows the system to capture images that accurately reflect the body’s alignment under natural, weight-bearing conditions. The entire process is completely painless and non-invasive, involving no needles or physical intervention, and is completed in a very short time.

How long does the application/procedure take?

The EOS Imaging procedure is remarkably fast. A full-body scan is typically completed in about 20 seconds, while scans focusing on specific regions take even less time. This speed is a major advantage, especially for children and patients who find it difficult to remain still, ensuring a more comfortable and stress-free experience.

Is the EOS Imaging procedure painful?

No, the EOS imaging procedure is completely painless. Patients do not feel any discomfort or pain during the scan; the process only requires them to stand still for a short period. As a method that involves no needles or physical intervention, it offers a very comfortable and simple experience for the patient.

Which patients is it applied to?

EOS Imaging is an ideal diagnostic tool for patients who are more sensitive to radiation, especially children and adolescents. Its “pediatric-friendly” design significantly minimizes lifetime radiation exposure. The system is also an excellent option for patients with chronic skeletal conditions like scoliosis, which require regular imaging to monitor the disease’s progression. The ability to conduct frequent follow-up scans with a much lower radiation risk makes it a safe and effective choice for long-term patient management.

Who is not suitable for EOS Imaging application?

Although EOS Imaging is a low-radiation and safe method, its application is not recommended in some cases. Since it involves radiation, it is generally not recommended for women who are pregnant or suspect they might be pregnant. As preventing fetal exposure to radiation, even at a low dose, is a priority, it is crucial to inform the doctor about potential pregnancy.

Additionally, patients who cannot remain still for a few seconds during the procedure may not be suitable for this method. Since image clarity can be directly affected by movement, alternative imaging methods may be considered, especially for young children or individuals with certain medical conditions.

What are the advantages?

EOS Imaging offers several key advantages that enhance the diagnostic process for both patients and clinicians.

• Significantly less radiation: It uses a much lower dose of radiation compared to traditional X-rays and CT scans, offering greater safety for children and patients who need frequent monitoring. This minimizes lifetime radiation exposure and reduces potential health risks.
• Full-body imaging for holistic assessment: The system captures a full-body image in a single scan while the patient is in a natural, weight-bearing position. This allows for a comprehensive assessment of the entire skeletal system, making it easier to analyze overall alignment and balance.
• 3D models for more accurate diagnosis: Its high-resolution 3D imaging capability allows doctors to create and examine detailed three-dimensional models of the skeleton. These models enable a more precise diagnosis of deformities like scoliosis, assessment of joint disorders, and accurate surgical planning.
• Fast scanning time: Full-body scans are completed in as little as 20 seconds, which enhances comfort for patients who have trouble staying still, particularly children. This speed also helps to optimize clinical workflow and reduce wait times.

Are there any side effects of using EOS Imaging?

EOS Imaging has no known serious side effects, as it is an innovative technology designed to minimize patient radiation exposure. The system uses a much lower radiation dose compared to traditional X-rays and, most notably, Computed Tomography (CT) scans. This significant reduction in exposure minimizes potential long-term risks, making it an exceptionally safe choice, especially for children and patients with chronic conditions who need frequent imaging.

What should be considered after the application?

No special care or rest is required after EOS Imaging. Since the procedure is completely painless and non-invasive, patients can return to their daily lives and activities immediately after the scan. There are no special rules or restrictions to follow after the application, so patients can continue their routines without interruption.