617 results found
Article
Periprocedural anticoagulation
Periprocedural anticoagulation planning is essential when planning an interventional procedure so that the best balance between the risk of bleeding and thrombosis can be achieved.
The following must be considered in assessment of periprocedural anticoagulation:
bleeding risks associated with ...
Article
First branchial cleft fistula
First branchial cleft fistulae are rare congenital malformations arising from the branchial apparatus during embryogenesis 1-5. They are often in close relation to the parotid gland, facial nerve, external auditory canal and the anterior neck near the angle of the mandible 1,2,5. Diagnosis can b...
Article
Lymphedema
Lymphedema is the pathologic accumulation of fluid in the soft tissues as the result of impaired lymphatic drainage, with resultant inflammation, adipose tissue hypertrophy, and fibrosis. It can be either primary or secondary, due to surgery or disease processes. The condition can cause disfigur...
Article
Epilepsy protocol (MRI)
MRI protocol for epilepsy is a set of MRI sequences aimed at improving sensitivity and specificity in identifying possible structural abnormalities that underlie epilepsy (e.g. mesial temporal sclerosis and malformation of cortical development).
Perhaps more than most other MRI protocols, stud...
Article
Femoroacetabular impingement syndrome
Femoroacetabular impingement (FAI) syndrome is painful, limited hip motion due to specific morphological abnormalities in the femoral head-neck region and/or acetabulum. Femoroacetabular impingement can lead to early degenerative disease.
Epidemiology
Femoroacetabular impingement is common in ...
Article
Symphyseal cleft injection
Symphyseal cleft injections (symphysography) are performed as both diagnostic and therapeutic measures for patients with (suspected) osteitis pubis, usually under CT or fluoroscopy.
Indications
suspected or confirmed osteitis pubis
Contraindications
factors to be considered as per any muscu...
Article
Fetal MRI
Fetal MRI allows for detailed imaging of the developing fetus in utero. Fast sequences are required due to fetal movement 1. Fetal MRI is most commonly utilized when ultrasound findings are equivocal. Fetal anatomy can be evaluated in detail including the brain, upper aerodigestive tract, thorax...
Article
Lumbar interlaminar epidural injection
Lumbar interlaminar epidural injections are one of some possible spinal epidural injections. For an alternative approach for the same region, please refer to the article on lumbar transforaminal epidural injections.
Indications
Typically, epidural injections are performed in patients with rad...
Article
Distal metatarsal articular angle
The distal metatarsal articular angle (DMAA) evaluates the relationship between the longitudinal axis and the articular surface of the first metatarsophalangeal joint and thus metatarsophalangeal coverage or joint congruity on a weight-bearing dorsoplantar radiograph of the foot.
Usage
The dis...
Article
Chiari I malformation
Chiari I malformation is the most common variant of the Chiari malformations and is characterized by a caudal descent of the cerebellar tonsils (and brainstem in its subtype, Chiari 1.5) through the foramen magnum. Symptoms are proportional to the degree of descent. MRI is the imaging modality o...
Article
CT angiography of the cerebral arteries (protocol)
CT angiography of the cerebral arteries (also known as a CTA carotids or an arch to vertex angiogram) is a non-invasive technique that allows visualization of the internal and external carotid arteries and vertebral arteries and can include just the intracranial compartment or also extend down t...
Article
Facial fractures
Facial fractures are commonly caused by blunt or penetrating trauma at moderate or high levels of force. Such injuries may be sustained during a fall, physical assault, motor vehicle collision, or gunshot wound. The facial bones are thin and relatively fragile, making them susceptible to injury....
Article
Fibular hemimelia
Fibular hemimelia is a congenital lower limb anomaly characterized by partial or complete absence of the fibula and includes a spectrum ranging from mild fibular hypoplasia to complete fibular aplasia 1.
Epidemiology
Although rare in occurrence, it is the most common congenital absence of long...
Article
Coronary arterial dominance
Coronary arterial dominance is defined by the vessel which gives rise to the posterior descending artery (PDA), which supplies the myocardium of the inferior third of the interventricular septum.
Most hearts (80-85%) are right dominant where the PDA is supplied by the right coronary artery (RCA...
Article
CT cisternography
Computed tomography (CT) cisternography is a minimally-invasive imaging technique used to visualize the intracranial CSF cisterns using iodinated contrast medium injected into the subarachnoid space.
Indications
detect and localize active CSF leaks through the skull base (CSF rhinorrhea or CSF...
Article
Anterior cruciate ligament graft stretching
Anterior cruciate ligament graft stretching or graft elongation refers to a clinical scenario of increased knee laxity in the setting of intact graft fibers and can occur as a complication of anterior cruciate ligament reconstruction.
Epidemiology
Anterior cruciate ligament (ACL) graft stretch...
Article
CT angiography of the circle of Willis (protocol)
CT angiography of the circle of Willis (CTA COW) is a technique that allows visualization of the intracranial arteries; specifically the circle of Willis. While digital subtraction angiography (DSA) remains the gold standard for the diagnosis of intracranial aneurysms especially, CTA is a less i...
Article
Patient data
Patient data is a section in cases (visible in edit mode) where patient demographics can be entered. The two fields are:
age
gender
Age
Please round the patient age to the nearest 5 years for adult patients (i.e. ≥18 years). This is an additional privacy measure.
For pediatric patients, cl...
Article
Tetralogy of Fallot
Tetralogy of Fallot (TOF) is the most common cyanotic congenital heart condition with many cases presenting after the newborn period. It has been classically characterized by the combination of ventricular septal defect (VSD), right ventricular outflow tract obstruction (RVOTO), overriding aorta...
Article
Adenocarcinoma in situ, minimally invasive adenocarcinoma and invasive adenocarcinoma of lung
Adenocarcinoma in situ, minimally invasive adenocarcinoma and invasive adenocarcinoma of the lung have replaced the now-defunct term bronchoalveolar carcinoma (BAC).
In 2011 the International Association for the Study of Lung Cancer (IASLC) and several other societies jointly revised the classi...
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