Cerebral angiography is an interventional procedure for the diagnosis and/or treatment of intracranial pathology.
Cerebral digital subtraction angiography (DSA) is indicated in a variety of settings including:
diagnosis and treatment of:
acute ischaemic stroke
CT head is a standard test performed in the assessment of a heterogeneous group of patients who present with a wide variety of symptoms. CT is particularly useful because it is widely available and relatively easy to perform. It allows rapid assessment and diagnosis of a wide gamut of conditions...
CT head technique describes how a CT head is performed.
The technique for performing a CT of the head depends on the scanner available and fall into two broad camps:
volumetric acquisition (most common)
Step-and-shoot scanning was the first describe...
An intraosseous pseudomeningocele is an intradiploic CSF collection communicating with the subarachnoid space.
Intraosseous pseudomeningoceles are rare sequelae of a skull fractures of traumatic or iatrogenic ethology occurring in infants and young children. They can be seen in an...
This article lists examples of normal imaging of the brain and surrounding structures, divided by modality and protocol.
example 1: C- axial, coronal, sagittal
example 2: C- axial, coronal, sagittal & axial bone
example 3: C- axial, C+ axial, coronal, sagittal
example 4: C-...
This article lists examples of normal imaging of the head and neck and surrounding structures, divided by region and modality.
For normal spinal imaging, please see: normal spinal imaging
soft tissue: example 1
soft tissue: example 2
This page lists examples of normal imaging of the spine, divided by region and modality.
example 1: AP, lat, obliques only
example 2: PEG view
example 3: flexion and extension views only
example 4: paediatric - 12 years old
example 5: including Swimmer's view
The orbitomeatal line, also known as the canthomeatal line, was the traditional axial plane used for CT of the brain. It was easily identified on the inspection of the patient's head when tilting the gantry or patient's head to achieve a standard axial plane.
The orbitomeatal line was defined ...
The skull AP view is a nonangled AP radiograph of the skull. This view provides an overview of the entire skull rather than attempting to highlight any one region.
the back of patient's head is placed against the image detector
the petrous ridge will overlap the lower 1/3 of ...
The skull lateral view is a nonangled lateral radiograph of the skull. This view provides an overview of the entire skull rather than attempting to highlight any one region.
the sagittal midline of the patient's head is parallel to the image detector
sella turcica in profile
The skull PA view is a non-angled PA radiograph of the skull. This view provides an overview of the entire skull rather than attempting to highlight any one region.
the patient is erect
the patient's forehead is placed against the image detector allowing for the nose to be in...
The Towne view is an angled AP radiograph of the skull.
the patient's nuchal ridge is placed against the image detector
dorsum sella overlies the foramen magnum
image size: 24 x 30 cm
X-ray beam features
the beam travels anterior to posterior (AP) direction, with ~30-40° o...