Computed Tomography (CT) is a medical imaging technique used to obtain detailed internal images of the body. CT scanners use a rotating X-ray tube and a series of detectors mounted on a gantry to measure the attenuation of X-rays as they pass through different tissues within the body. Multiple X-ray measurements taken from various angles are then processed by a computer using tomographic reconstruction algorithms to produce tomographic (cross-sectional) images of the body.
By capturing multiple X-ray images from different angles, the system generates detailed images of the body’s internal structures. When these images are combined, a three-dimensional (3D) representation is created.
Our CT device is equipped with the following advanced features:
ASIR Technology:
The ASIR (Adaptive Statistical Iterative Reconstruction) technique, a pioneer in image reconstruction, reduces image noise while improving image quality, low-contrast detectability, and contrast resolution. It delivers the same performance with up to 40% lower radiation dose compared to conventional methods.
VISR Technology:
VISR provides a 3D noise-reduction filter that enhances visualization of the brain, tumors, and pediatric cases without sacrificing resolution. Using the VISR 3D filter, the scanner achieves up to 20% improvement in image quality at the same radiation dose, or up to 36% dose reduction while maintaining equivalent image quality.
Neuro 3D Filter:
This is a noise-reduction filter optimized for thin-slice data. It is designed for post-processing to create Mean and MIP images, volumetric analyses, and 3D models for neurological studies such as the Circle of Willis, carotid arteries, sinuses, orbits, mandible, and helical brain imaging.
Organ-Based Dose Modulation:
Through X-ray tube current modulation, this feature reduces radiation exposure to superficial tissues. It maintains equivalent imaging efficiency based on image noise without compromising productivity as seen in traditional surface-dose reduction methods. Radiation dose reduction to superficial organs can reach up to 40%, while image noise increases by less than 10%.
What Does a CT Scan Show?
A CT (Computed Tomography) scan can reveal a wide range of medical conditions and abnormalities inside the body, including:
- Various types of cancer
- Pneumonia and emphysema
- Bone fractures
- Heart disease
- Blood clots
- Intestinal disorders (such as appendicitis, diverticulitis, obstructions, and Crohn’s disease)
- Kidney stones
- Brain injuries
- Spinal cord injuries
- Internal bleeding
A few hours before undergoing a Computed Tomography (CT) scan, eating and drinking should be discontinued.
Before the procedure, metal objects such as belts, jewelry, piercings, hair clips, dentures, and eyeglasses—which may interfere with image quality—should be removed.
During the CT procedure, the patient lies on a table that moves through the CT scanner. Depending on the type of examination, the patient may lie on their back or face down. It is important for the patient to remain comfortable and still during the scan, as any movement can affect the clarity of the images. For clearer results, the patient may be asked to hold their breath during image acquisition.
The CT machine may produce sounds during the procedure, and the table the patient lies on might make small movements while images are being captured. Although the patient remains alone in the room during the scan, the authorized radiology technician can see, hear, and communicate with the patient through an intercom system.
Contrast-Enhanced CT
Your doctor may use a contrast agent to highlight specific areas of your body. Contrast helps certain tissues, organs, or blood vessels become more visible. For a contrast-enhanced CT scan, the doctor usually administers the contrast agent (dye) intravenously. This dye may cause a temporary warm sensation, facial flushing, or a metallic taste in the mouth. Intravenous contrast materials are typically excreted from the body within 24 hours (through urination). In some cases, you may be asked to drink the contrast agent—especially if an intestinal scan is being performed.