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.
163 results found
Article
Superficial cervical plexus nerve block (ultrasound)
The superficial cervical plexus nerve block is a field block indicated for procedures involving, and anesthesia of, the anterolateral neck and the skin overlying the clavicle. The superficial cervical plexus (SCP) includes the greater auricular, lesser occipital, transverse cervical, and supracl...
Article
French gauge
The French gauge (Fr) (also known as the French scale or system) is used to size catheters, and other instruments, in interventional radiology and surgery. In some parts of the world, the Charrière (Ch) is used as the name of the unit, in honor of its inventor.
French sizing
The French system...
Article
Antonio Egas Moniz
Antonio Egas Moniz (1874-1955) 1 was a pioneering Portuguese neurologist that is notable in radiology history for his development of cerebral angiography in 1927.
He is also known as the developer of prefrontal leucotomy (now better known as a lobotomy) for which he received a Nobel Prize in 1...
Article
Inferior vena cava filter retrieval
Inferior vena cava filter retrieval is an endovascular procedure whereby a previously placed inferior vena cava (IVC) filter is removed.
Procedure
The procedure is performed under local anesthesia with fluoroscopic guidance. Venous access is usually gained via the internal jugular vein with di...
Article
No-touch ablation technique
No-touch ablation techniques, using either microwave or radiofrequency to generate heating, refer to approaches whereby the probes are placed at multiple oblique sites tangential and adjacent to the targeted tumor (cf. probe placement centrally within the tumor).
Indications
For general indic...
Article
Breast core biopsy
The percutaneous breast biopsy is one of the current choices for focal histopathological assessment of breast lesions. In contrast to fine needle aspiration, during a core needle biopsy, a hollow needle is used to withdraw small cores of tissue from the area of interest in the breast.
This pro...
Article
Carotid arterial stenting
Carotid arterial stenting (CAS) is a minimally invasive endovascular interventional procedure that can potentially offer the same advantage as surgery (carotid endarterectomy).
Indications
Indications for carotid stenting are evolving with endarterectomy trials that evaluate the carotid stenos...
Article
Bariatric embolization
Bariatric embolization is an interventional procedure performed with a view to inducing weight-loss in the treatment of obesity. Evidence from clinical trials suggests that the procedure is well tolerated and has a good safety profile. Early studies demonstrate a mild-moderate beneficial effect....
Article
DNB in endovascular and interventional radiology
Diplomate of National Board (DNB) in endovascular and interventional radiology is a postdoctoral super specialty programme in India.
eligibility
postgraduate degree in radiology (MD/DNB)
National Eligibility cum Entrance Test (Super Speciality courses) (NEETSS)/Common Entrance Test (Super S...
Article
Carbon dioxide angiography
Carbon dioxide (CO2) is an excellent negative contrast agent which has been used for a variety of vascular interventions since the introduction of digital subtraction angiography. Due to its high solubility rate and rapid diffusibility via the lungs, CO2 is safe for intravascular usage.
Physica...
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
Billowing phenomenon
Billowing phenomenon refers to the presence of contrast medium on contrast-enhanced CT outside of graft metal struts, due to the specific construction characteristic typical of the AFX® stent-graft (Endologix, Inc., USA), designed to treat abdominal aortic aneurysms. It has a unique internal sca...
Article
Ulnar nerve block (ultrasound-guided)
Ulnar nerve blocks are an approach for delivering anesthesia to the ulnar nerve territory either as a standalone blockade or combined with brachial plexus, radial or median nerve block.
Indications
burns involving tissue in the ulnar nerve territory
rescue analgesia for failed brachial plexus...
Article
Radial nerve block (ultrasound-guided)
Radial nerve blocks are a procedure for delivering anesthesia to the radial nerve territory either as a standalone blockade or in conjunction with a brachial plexus, ulnar or median nerve block.
Indications
association with median nerve block
radial tunnel syndrome
forearm and hand surgical ...
Article
Tachon syndrome
Tachon syndrome is a rare systemic side effect of epidural or intra-articular corticosteroid injections.
Clinical presentation
Minutes after injection, patients may complain of 1:
acute low back pain
chest tightness
facial erythema
profuse sweating
cough
agitation
Treatment and prognosi...
Article
Infusothorax
Infusothorax (plural: infusothoraces), also known as a chemothorax, is a complication of central venous catheter malposition where the catheter tip is located in the pleural space and the infusion of the fluid collects inadvertently in the pleural space in the form of a pleural effusion. Longer ...
Article
Multiphase CT angiography in acute ischemic stroke
Multiphase CT angiography is an evolving imaging technique in acute ischemic stroke. The technique aims to quickly and reliably identify brain which is potentially salvageable with intervention. Brain tissue viability depends on many factors, with this technique assessing collateral leptomeninge...
Article
DM interventional radiology
DM interventional radiology superspecialty course is a 3-year postgraduate subspecialty training in interventional radiology with the pre-requisites being a primary medical degree and MD radiodiagnosis or DNB radiodiagnosis. Successful completion of the course requires submission of a thesis at ...
Article
Robotics in interventional radiology
Robotics in interventional radiology (IR) is an emerging area following the growth of engineering technology. Machine-assisted procedures are already performed in various disciplines including general, cardiothoracic and urologic surgery. The best-known is the Da Vinci® Surgical System. The appl...
Article
Denver shunt
A Denver shunt, or peritoneovenous shunt, is a device used to shunt ascites to the superior vena cava in patients with refractory ascites.
The proximal end is located in the peritoneal cavity and the distal end in the superior vena cava, with a subcutaneous course in the anterior chest wall. It...
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