Skull imaging
These materials help highlight the areas that need to be examined(7). How Skull CT Images Are ProducedĬontrast agents or contrast materials are required for different radiology imaging scans, including CT scans(6).Īs the name suggests, contrast materials increase the visual contrast of the different internal body organs. Among soft tissues in the head and neck region are the brain matter, eyes, and muscles.įluids commonly observed in skull CT scans are blood and cerebrospinal fluid or the liquid surrounding the brain and spinal cord.
Soft tissues and fluids are shown in different shades of gray(5). The bright white shapes in CT images are structures with calcium content, such as bones of the cranium or skull(4). These areas include the paranasal sinuses (air-filled extensions of the nasal cavity) and mastoid air cells. In grayscale skull or cranial CT imaging, the black areas denote air pockets or areas filled only with air(3). However, unlike X-rays, a CT imaging scan shows the internal organs in greater detail, especially soft tissues and blood vessels(2).
SKULL IMAGING SERIES
Images are shown from the vertex to the base of the skullĪ skull CT scan, also called cranial or head CT (computed tomography) scan, is a diagnostic medical imaging technique used to create detailed images of the head and brain anatomy.Ī skull CT scan uses special X-ray equipment to generate a series of cross-sectional and three-dimensional images of the head and neck region(1).
The bregma is the point where joins coronal suture and sagittal suture.
The lambda is the point where joins lambdoid sutures and the Sagittal suture. The lambdoid suture is a line where the parietal bone occipital bone and are in contact. The coronal suture is the line where the parietal bone frontal bone and are in contact. The sagittal suture is the line where the right and left parietal bone are in contact.