Items tagged “stub”
1,310 results found
Article
Fluorine-18-labeled sodium fluoride
Fluorine-18-labeled sodium fluoride (also known as 18F-NaF or sodium fluoride) is a PET radiotracer used primarily for skeletal imaging.
Structure
Fluorine-18-labeled sodium fluoride is an ionic compound comprised of a single sodium atom bound to a positron-emitting isotope of fluorine.
Dist...
Article
Maxwell (CGS unit)
The maxwell (symbol: Mx) is the CGS unit of magnetic flux and was superseded by the weber, the unit in the SI system.
Terminology
As per all other eponymous measurement units when the unit is written out in full it is not capitalized, but when shortened to its symbol it is capitalized.
Histo...
Article
Telltale triangle sign
The telltale triangle sign, also known as the triangle sign or telltale triangle, is a radiographic sign seen on plain abdominal radiographs in a supine, cross table lateral or decubitus view that signifies presence of pneumoperitoneum, of any cause 1,2.
It describes the appearance of a radiolu...
Article
Nucleus of tractus solitarius
The nucleus of tractus solitarius, also known as the nucleus of the solitary tract or simply the solitary nucleus, is a purely sensory nucleus located in the dorsolateral medulla oblongata and lower pons. It receives many sensory inputs including taste information and sensory information from th...
Article
Superior salivary nucleus
The superior salivatory (or salivary) nucleus of the facial nerve is a visceromotor parasympathetic cranial nerve nucleus located in the pontine tegmentum.
Gross anatomy
The superior salivatory nucleus is located just cranial to the inferior salivatory nucleus within the dorsal aspect of the p...
Article
Primary auditory cortex
The primary auditory cortex (Brodmann area 41, 42) is the part of the temporal lobe that is responsible for the conscious perception of sound. It is located in Heschl's gyrus. It receives inputs from the medial geniculate nucleus.
Article
Septal nuclei
The septal nuclei are an area of the brain adjacent to the septum pellucidum, anterior to the lamina terminalis and below the rostrum of the corpus callosum. It consists of a subset of four nuclei involved in emotional functioning: dorsal, ventral medial and caudal.
Article
Man-in-the-barrel syndrome
Man-in-the-barrel syndrome is a neurological syndrome characterized by bilateral brachial muscular weakness.
Pathology
This syndrome is usually caused by bilateral cerebral lesions in the border zone between the anterior and middle cerebral arteries.
Etiology
The syndrome has been described ...
Article
Flatulence
Flatulence is the expulsion of bowel gas (or flatus) from the anal canal.
The average individual expels a wide range of volume of flatus per day, ~200-2500 mL 1.
The bulk of the volume of the gas comprises oxygen, nitrogen, carbon dioxide, hydrogen, and methane. However these gases lack any as...
Article
Fat-water swapping artifact
Fat-water swapping artifact is seen in a significant proportion of fat/water suppressed sequences using the Dixon method. The artifact follows a computational error in areas of field inhomogeneity resulting in incorrectly determining whether a voxel contains water or fat.
The images have geogra...
Article
PSA density
The PSA density (PSAD) is a calculation performed at diagnosis and is the serum prostate specific antigen (PSA) level (ng/mL) divided by the volume of the prostate gland (mL), resulting in a value with the units, ng/mL2 1. Prostate volume is calculated from TRUS measurements 2,3.
Alternatively...
Article
Radiation-induced neuritis
Radiation-induced neuritis is a complication of radiotherapy that may present with visible changes on MRI. It is likely to be most relevant in the head and neck region. There is only scarce radiology literature on the subject and radiation-induced optic neuritis is best documented.
Epidemiolog...
Article
Anterior commissure of the larynx
The anterior commissure of the larynx is the anterior junction point of the true vocal cords. It is bounded anteriorly by the thyroid cartilage and is part of the laryngeal glottis.
See also
posterior commissure
Article
Subcapsular line sign (intracapsular breast implant rupture)
The subcapsular line sign is a small localized leak from a silicone implant that leads to the formation of a thin layer of silicone between the implant shell and the fibrous capsule. It represents a minimally collapsed intracapsular breast implant rupture. It is best appreciated by MRI.
Article
Shoulder injection (disambiguation)
Shoulder injection is a general term, especially for the patient, for a variety of procedures including:
acromioclavicular joint injection
glenohumeral joint injection
glenohumeral (shoulder) arthrography
glenohumeral (shoulder) hydrodilatation
long head of biceps tendon ...
Article
Foramen singulare
The foramen singulare, also known as the singular foramen or singular canal, is a thin channel within the petrous temporal bone that carries the singular nerve from the internal auditory canal. It is a normal structure that may be mistaken for a temporal bone fracture (i.e., it is a pseudofractu...
Article
Coronary artery calcification
Coronary artery calcification is a common incidental finding in asymptomatic patients having CT of the thorax for non-cardiac indications as well as being a significant finding in cardiac CT. Coronary artery calcification is a marker of atherosclerotic plaque burden and thus coronary artery dise...
Article
Posterior vertebral fusion anomalies
Posterior vertebral fusion anomalies are relatively common and should not be mistaken for fractures. They are thought to be both developmental and pathological (e.g. spondylolysis) but are typically asymptomatic and incidental, and considered as anatomical variants. There are six types of poster...
Article
CA 27-29
CA 27-29 is a tumor marker and is a soluble form of glycoprotein MUC1. It may be elevated in patients with breast cancer. Tumors of the colon, stomach, kidney, lung, ovary, pancreas, uterus, and liver may also raise CA 27-29 levels.
Certain non-malignant conditions are also associated with its ...
Article
Gallium-68 DOTATATE
Gallium-68 DOTATATE (or Ga-68 DOTATATE) is a PET radiotracer that is a form of somatostatin-receptor (SSTR) functional imaging. It is most commonly used for evaluating primary and metastatic well-differentiated neuroendocrine tumors. There are also emerging uses for evaluating other somatostat...
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