Scanogram
Uses
Preparation:
- Patient Positioning: Position the patient on the scanner table. Ensure they are comfortable and in the correct position as per the scan protocol.
- Equipment Settings: Set up the scanner based on the type of scanogram needed.
Acquiring the Scanogram::
- Select Scanogram Mode: Choose the scanogram or scout view mode. This mode typically uses a lower dose of radiation compared to the main scan.
- Image Capture: Start the scanogram. The scanner will take a quick, low-resolution image of the area of interest. This can be an anterior-posterior (AP), lateral, or other orientations depending on the requirement.
Reviewing the Scanogram:
- Check Positioning: Review the scanogram to ensure the area of interest is correctly positioned within the scanner’s field of view.
- Adjustments: If necessary, reposition the patient or adjust the scan parameters based on the scanogram.
Planning the Main Scan:
- Define Scan Range: Use the scanogram to mark the start and end points of the area to be scanned in the main study.
- Adjust Settings: Modify any scan settings, like slice thickness or contrast, based on the scanogram.
Proceed with the Main Scan:
- Once the scanogram is satisfactory and the scan range is set, proceed with the main imaging scan.
A scanogram is a diagnostic imaging technique that provides a detailed visual representation of an anatomical area, usually the full length of a limb or the spine. It is often used to assess bone alignment, measure limb length discrepancies, or monitor the progression of scoliosis.
During a scanogram, a series of X-ray images are taken in a straight line, creating a continuous image of the area of interest. This method allows for precise measurements, as it eliminates the distortion that might occur in regular X-ray images. The images are then compiled into a single image, often resembling a long, vertical strip, that can be used to evaluate the structure and alignment of bones.
