- The display system of a CT scan consists of a high-resolution monitor that is capable of accurately reproducing the acquired images. It should have sufficient brightness and contrast capabilities to ensure optimal image visualization. The display system may also include tools for image manipulation, such as windowing and zooming.
The record system of a CT scan involves the storage of the acquired images in a digital format. The images are typically saved in DICOM (Digital Imaging and Communications in Medicine) format, which is a standard for medical imaging. DICOM files contain both image data and associated patient information.
The storage system of a CT scan is responsible for archiving the acquired images for future reference. It may consist of a Picture Archiving and Communication System (PACS), which allows for secure storage and retrieval of medical images. The storage system should have sufficient capacity to accommodate the large volume of CT scan images generated.
- CT software encompasses various functions that aid in image acquisition, reconstruction, and analysis. These include:
1. Image acquisition control: CT software allows the operator to control the scanning parameters, such as slice thickness, tube current, and exposure time.
2. Image reconstruction: After the raw data is acquired, the software performs complex mathematical algorithms to reconstruct the images from the acquired data. This process involves correcting artifacts and enhancing image quality.
3. Image post-processing: CT software provides tools for image manipulation and analysis. It allows for functions like multi-planar reformatting, maximum intensity projection, volume rendering, and 3D reconstruction.
4. Image analysis: The software may have tools for quantitative analysis of the images, such as measuring densities or performing calculations for tumor volumetrics.
5. Image annotation and reporting: The software enables the addition of annotations, measurements, and other relevant information to the images. It also facilitates generating reports for communication and documentation purposes.
- The computer system of a CT scan consists of various components, including:
1. Host computer: This is the main computer that controls the CT scanner and processes the acquired data. It runs the CT software and manages the overall operation of the system.
2. Image reconstruction computer: This dedicated computer performs the complex mathematical algorithms required for image reconstruction from the acquired raw data.
3. Display workstation: This is the computer used for viewing and analyzing the CT images. It is equipped with high-resolution monitors and specialized software for image manipulation and analysis.
4. Data storage system: This includes the storage devices, such as hard drives or network-attached storage (NAS), where the acquired CT images are stored for archiving and future retrieval.
5. Network infrastructure: A CT scan system requires a network to facilitate communication between the various components, including image transfer from the scanner to the display workstation or storage system.
- The image storage size of a CT scan system can vary depending on the specific scanner model and settings. However, a common image storage size for a single CT scan slice can range from a few megabytes to tens of megabytes. For example, a typical abdominal CT scan slice can have a storage size of around 10-20 megabytes.
The image display sizes in a CT scan system are typically standardized to fit the monitor resolution and optimize image visualization. Common display sizes include 512x512 pixels, 1024x1024 pixels, or 2048x2048 pixels. The choice of display size may depend on factors like monitor size, pixel density, and the desired level of detail.
- The patient couch in a CT scan system is a movable platform where the patient lies during the scanning procedure. It should be comfortable and able to support the patient's weight. The couch should also be capable of precise and smooth movements, allowing for accurate positioning of the patient for scanning. It may have features like motorized adjustments for height, tilt, and lateral movements to ensure proper alignment with the CT scanner. Additionally, the couch should be designed to minimize artifacts and interference with the scanning process.
