C-Arm fluoroscopy is a mobile radiology device with a C-shaped support arm capable of real-time X-ray imaging. As an indispensable tool in many branches, primarily gastroenterology, as well as orthopedics, cardiology, urology, and interventional radiology, this system provides the physician with instant imaging during surgery or procedures, enabling interventions to be performed safely and accurately. It is the gold standard imaging method, especially in complex interventional procedures such as endoscopic retrograde cholangiopancreatography (ERCP). Allowing for minimally invasive approaches as an alternative to open surgery, C-Arm fluoroscopy makes a significant contribution to increasing patient comfort and treatment success in modern medicine.
What is C-Arm Fluoroscopy and How Does It Work?
C-Arm fluoroscopy consists of a C-arm structure containing an X-ray source and an image detector, high-resolution monitors, and a control console. The device's C-shaped design allows for 360-degree rotation around the patient, enabling imaging from the desired anatomical angle. Modern C-Arm systems offer digital image processing, low-dose radiation, and real-time recording features. The device is positioned over or to the side of the operating table, and the physician performs the procedure by monitoring live images on the screen. Depending on the detector technology used, there are standard image intensifiers or more modern flat-panel detectors, and latest-generation devices can even provide CT-like three-dimensional imaging.
Working Principle
The system operates primarily on the following principles:
- Fluoroscopy mode: Moving images are obtained through continuous X-ray emission
- Pulse fluoroscopy: Radiation dose is significantly reduced with periodic X-rays
- Digital imaging: Instant images are monitored on high-resolution screens
- Recording and archiving: Images taken during the procedure are stored digitally
- Rotational flexibility: Three-dimensional anatomical information is obtained by taking images at the desired angle
- DSA (Digital Subtraction Angiography): Background elimination in vascular imaging
- Roadmap feature: Ability to plan procedures along the vascular path
In Which Fields Is It Used?
C-Arm fluoroscopy is widely used in many branches:
- ERCP procedures: Imaging of the bile ducts and pancreatic duct, stone extraction, and stent placement
- Orthopedic surgery: Fracture reduction, screw and plate placement, hip and knee replacement
- Spine surgery: Pedicle screw, kyphoplasty, and vertebroplasty applications
- Cardiology: Angiography, coronary stent, and pacemaker placement
- Urology: Kidney stone treatment and percutaneous nephrolithotomy
- Interventional radiology: Angioplasty, embolization, and drainage procedures
- Vascular surgery: Endovascular aneurysm repair and vascular interventions
- Pain management: Guidance for nerve blocks and intra-articular injections
- Oncology: Brachytherapy and port catheter placement
- Gastroenterological interventions: Percutaneous endoscopic gastrostomy (PEG) placement
Advantages of C-Arm Fluoroscopy
The contributions of this device to clinical practice are quite significant:
- Real-time imaging: The physician can monitor every movement instantly during the procedure
- High accuracy: Clear visualization of anatomical structures increases success rates
- Minimally invasive approach: Offers the possibility of closed procedures instead of open surgery
- Mobile use: Easily used in the operating room, angiography laboratory, or endoscopy unit
- Fast procedure: Shortens diagnosis and treatment time
- Low risk of complications: Ensures the protection of critical structures
- Digital documentation: The procedure process is recorded and can be evaluated later
- Low radiation dose: Modern devices minimize dosage with pulse fluoroscopy
- Versatile use: Procedures in different branches can be performed with a single device
- Patient comfort: Much less invasive and less painful compared to open surgery
Procedure Process
Prior to the procedure to be performed under C-Arm fluoroscopy, the patient is informed, and sedation or anesthesia is administered. The patient is placed in the appropriate position, and the device is positioned at the surgical site. Throughout the procedure, the team, protected by radiological protective aprons, performs the intervention under real-time imaging. In procedures such as ERCP, contrast medium is first administered to image the bile and pancreatic ducts, followed by treatment steps such as stone extraction, stent placement, or stricture dilation. In orthopedic use, after fracture reduction is achieved, screw or plate placement is confirmed under C-Arm imaging. In angiography, the diseased area is identified by advancing through the vascular path, and treatment is applied. The procedure duration usually varies between 30 minutes and 1.5 hours. Afterward, the patient is kept under observation, and the success of the procedure is evaluated through clinical follow-up. Many C-Arm guided procedures require outpatient care or a short hospital stay.
Points to Consider
Although C-Arm fluoroscopy provides low-dose radiation, it requires careful evaluation in pregnant patients and children. The patient's allergy to contrast media, kidney functions, and bleeding parameters must be checked before the procedure. It is essential for the team to use radiological protective clothing, perform dose monitoring, and adhere to the international ALARA (As Low As Reasonably Achievable) principle. Regular calibration and quality control of the device are critical for patient safety. During the procedure, the patient's immobility and proper positioning directly affect image quality. Alternative imaging methods should be preferred whenever possible in pregnant women, and lead aprons to protect the fetus should be used when necessary. Continuous training of the team regarding patient and physician radiation safety must be ensured.
Comparison of C-Arm Fluoroscopy with Other Imaging Methods
C-Arm fluoroscopy offers different advantages compared to magnetic resonance (MR) and ultrasonography. While MR provides high soft-tissue detail, it is not practical for real-time procedural guidance and can create incompatibility with metallic instruments. Ultrasonography does not contain radiation but is limited in the evaluation of bony structures and gaseous bowel segments. C-Arm fluoroscopy, on the other hand, can show both bone and contrast-enhanced soft tissues in real-time, making it an ideal solution for interventional procedures. In modern hybrid operating rooms, C-Arm fluoroscopy systems can be integrated with MR or CT, allowing multiple imaging modalities to be used in a single session. Thanks to its integration with surgical navigation systems, millimetric precision is achieved, especially in orthopedics and spine surgery. AI-supported image processing contributes to patient and team safety by improving image quality in low-dose applications.
As Koru Hospital, we perform minimally invasive diagnostic and treatment procedures with state-of-the-art C-Arm fluoroscopy systems in our gastroenterology, orthopedics, cardiology, and interventional radiology units at the highest safety standards. With our experienced physician staff and modern infrastructure, we offer reliable, effective, and comfortable healthcare services to our patients. Thanks to our multidisciplinary approach, we determine the most appropriate interventional method for each patient and maintain excellence standards in treatment processes.
