Articles
Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. As such, articles are written and continuously improved upon by countless contributing members. Our dedicated editors oversee each edit for accuracy and style. Find out more about articles.
1,387 results found
Article
Encephalomyosynangiosis
Encephalomyosynangiosis (EMS) is an indirect revascularization surgery for moyamoya disease as a way to bypass an occluded internal carotid artery and circle of Willis.
It entails dissecting strips of vascularized temporalis muscle and subjacent galeal flap and, following craniotomy and openin...
Article
Portal vein embolization
Portal vein embolization (PVE) is a technique used to selectively occlude the blood supply to one of the liver lobes, diverting portal blood flow to the other lobe, the future liver remnant (FLR).
This diversion will increase the size of the post-hepatectomy future liver remnant, which improves...
Article
Spinal epidural venous plexus congestion
Spinal epidural venous plexus congestion or dilatation is typically a complication of other pathologies.
Clinical presentation
Radiculopathy caused by the dilated epidural veins is not uncommon 1. More severe symptoms such as cauda equina compression syndrome have been reported 6, 7.
Patholo...
Article
Vertebrovenous fistula
Vertebrovenous fistulas are uncommon arteriovenous fistulas between the vertebral artery and the adjacent vertebral venous plexus 1. They can present with a variety of symptoms, including bruits and neurological symptoms and occur either spontaneously, typically in patients with connective tissu...
Article
Parkes Weber syndrome
Parkes Weber syndrome or less commonly F P Weber syndrome is a traditional eponymous denomination of a certain type of angiodysplasia, that would nowadays rather be called a mixed hemolymphatic congenital vascular malformation (CVM) with arteriovenous (AV) shunting, based on the Hamburg classifi...
Article
Accessory right inferior hepatic vein
An accessory right inferior hepatic vein is the most common variation of the hepatic veins, and may be multiple 1. It is present in up to 48% of the population and drains the posteroinferior part of the right lobe directly into the inferior vena cava (IVC) 1-3.
Variations in hepatic vascular an...
Article
Suboccipital cavernous sinus
The suboccipital cavernous sinuses are paired venous plexuses that surround the horizontal (distal V3) portion of the vertebral arteries at the craniocervical junction. Its name derives from its resemblance to the cavernous sinus as it is a venous cushion surrounding a large arterial loop at the...
Article
Anterior tibial vein
The anterior tibial veins, continuations of the venae comitantes of the dorsalis pedis artery, leave the anterior compartment of the leg between the tibia and fibula and pass through the proximal end of the interosseous membrane. They unite with the posterior tibial veins to form the popliteal v...
Article
CT angiography of the splanchnic vessels (protocol)
Multislice CT angiography of the splanchnic vessels is a powerful minimally invasive technique for the evaluation of the splanchnic vascular system.
Indications
CT angiography is indicated in the evaluation of the following conditions related to the splanchnic vessels 8:
aneurysm
thrombosis
...
Article
Popliteal artery
The popliteal artery is the direct continuation of the superficial femoral artery, at the point where it exits the adductor canal at the adductor hiatus, and passes into the popliteal fossa as the vessel courses posteriorly behind the knee.
Summary
origin: continuation of the superficial femor...
Article
Coronary microvascular dysfunction
Coronary microvascular dysfunction (CMD) or coronary microvascular disease refers to a wide spectrum of clinical situations with an impairment of the coronary microcirculation and myocardial blood flow in subjects with respective risk factors. It can contribute to or induce myocardial ischemia. ...
Article
Complications of radiation therapy
Radiation therapy has the potential to cause complications in many organ systems, many of which, especially in the thorax, are important for radiologists to be aware of.
acute radiation syndrome
complications of cranial radiation therapy
radiation-induced cerebral vasculopathy
radiation-ind...
Article
Cerebral proliferative angiopathy
Cerebral proliferative angiopathy (CPA), previously known as diffuse nidus type arteriovenous malformation, is a cerebral vascular malformation separated from classic brain arteriovenous malformation (AVM) and characterized by the presence of normal brain parenchyma interspersed throughout the s...
Article
Dehiscent jugular bulb
Dehiscent jugular bulbs are present when the sigmoid plate between a high riding jugular bulb and the middle ear is absent, allowing the wall of the jugular bulb to bulge into the middle ear cavity.
Epidemiology
The estimated incidence is ~5% (range 3.5-7%) of the symptomatic population (e.g. ...
Article
Splenic artery
The splenic artery is one of the three branches of the celiac trunk, which supplies the spleen as well as large parts of the stomach and pancreas.
Gross anatomy
Origin and course
The splenic artery is one of the terminal branches of the celiac trunk, passing left from the celiac axis across t...
Article
Arterial vasocorona
The arterial vasocorona is part of the spinal cord blood supply and is formed by pial anastomoses between the anterior and posterior spinal arteries on the surface of the spinal cord. It encircles the cord and supplies the peripheral lateral aspect of the spinal cord.
Engorgement of arterial v...
Article
Inferior vena caval thrombosis
Inferior vena caval thrombosis is an essential diagnosis while evaluating any neoplastic lesion, or portal hypertension. It is also important to differentiate bland thrombus from tumor thrombus.
Clinical features
A patient can present with many features which include
bilateral pedal edema
Bu...
Article
Lateral tentorial artery
The lateral tentorial artery also known as lateral tentorial arcade, is a branch of the meningohypophyseal trunk. which arises from the cavernous segment of the internal carotid artery. The lateral tentorial artery runs along the lateral edge of the tentorium cerebelli.
Radiographic appearance
...
Article
Generalized lymphatic anomaly
Generalized lymphatic anomaly, previously known as lymphangiomatosis or cystic angiomatosis, is a systemic condition characterized by multifocal lymphatic malformations with systemic distribution. The distribution of lesions is variable; there can be cutaneous, thoracic and abdominal viscera and...
Article
Coronary artery dissection
Coronary artery dissection is a rare cause of acute coronary syndrome especially in young patients who are otherwise healthy.
A spontaneous coronary artery dissection (SCAD) is defined as a non-iatrogenic dissection of an epicardial coronary artery not associated with atherosclerosis or trauma....