Malignant Otitis Externa : Tests

A doctor will look into your ear for signs of an outer ear infection (otitis externa. The head around and behind the ear may be tender to touch. A neurological examination may show that the cranial nerves are affected. If there is any drainage, th...

A cranial CT scan is computed tomography of the head, including the skull, brain, orbits (eye sockets), and sinuses.

CT imaging equipment includes conventional, spiral, multi-slice, and electron-beam computed tomography full-body scanners, which use x rays to acquire cross-sectional images and computer workstations to reconstruct acquired image data for display on a viewing monitor or printed on film. Also referred to as computerized axial tomography (CAT) scanning equipment.

Injury to the head may damage the scalp, skull , or brain . The most important consequence of head injury is traumatic brain injury.

Computed tomography (CT) scans are completed with the use of a 360-degree x-ray beam and computer production of images. These scans allow for cross-sectional views of body organs and tissues.

Computed tomography (also known as CT, CT scan, CAT, or computerized axial tomography) scans use x rays to produce precise cross-sectional images of anatomical structures. With the development of modern computers, the scans enhanced digital capabilities allowed the development of computed tomography imaging (derived from the Greek tomos , meaning " to slice " ).

Injury to the head may damage the scalp, skull or brain. The most important consequence of head trauma is traumatic brain injury.

Head injury is an injury to the scalp, skull, or brain. The most important consequence of head trauma is traumatic brain injury.

Computed tomography (CT) scans are completed with the use of a 360-degree x-ray beam and computer production of images. These scans allow for cross- sectional views of body organs and tissues.

During a physical examination, a health care provider studies a patient's body to determine the presence or absence of physical problems. A typical physical examination includes: Inspection (looking at the body; Palpation (feeling the body with hands; Auscultation (listening to sounds; Percussion (producing sounds.

An MRI of the head is a noninvasive procedure that uses powerful magnets and radio waves to construct clear, detailed pictures of brain tissues. Conventional radiography and computed tomographic (CT) imaging use potentially harmful radiation (x-rays) that passes through a patient to generate images. Magnetic resonance imaging (MRI) is based on the magnetic properties of atoms, and there is no exposure to the same type of radiation used in x-rays and CT scans. A powerful magnet generates a magnetic field roughly 10,000 times stronger than the Earth's. A very small percentage of hydrogen atoms within the body will align with this field. Radio wave pulses are broadcast towards the aligned hydrogen atoms in tissues of interest, returning a signal of their own. The slight differences of those signals from different tissues enables MRI to tell the difference between various organs, and potentially, provide contrast between benign and malignant tissue. Any imaging angle, or "slice", can be projected, and then stored in a computer or printed on film. MRI can easily be performed through clothing and bones. However, certain types of metal in or around the area of interest can cause significant errors in the reconstructed images. These errors are called artifacts.

Detailed information on magnetic resonance imaging (MRI), including information on how the procedure is performed

A skull x-ray is a picture of the bones surrounding the brain, including the facial bones, the nose, and the sinuses. See also: Sinus x-ray

Skull x rays are performed to examine the nose, sinuses, and facial bones. These studies may also be referred to as sinus or maxilofacial x rays.

Skull x rays are performed to examine the nose, sinuses, and facial bones. These studies may also be referred to as sinus x rays.

Skull x rays are performed to examine the nose, sinuses, and facial bones. These studies may also be referred to as sinus x rays.