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.
More than 200 results
Article
Interventional radiology in practice
Interventional radiology procedures within medical imaging span multiple subspecialties and modalities. This is a collection of articles exploring indications, techniques and practice applications of interventional procedures within radiology.
In pediatrics, the most common interventional proce...
Article
Gluteus minimus/medius calcific tendinopathy barbotage (technique)
Gluteus minimus/medius calcific tendinopathy barbotage is a procedure performed under ultrasound guidance with the aim of reducing the bulk of tendon calcification, in a similar fashion to that performed for rotator cuff calcific tendinopathy.
Indications
gluteus minimus/medius tendon calcifi...
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
Blood blister-like aneurysm
Blood blister-like aneurysm is a broad-based bulge at a non-branch point of a vessel, which is unlike saccular (or 'berry') aneurysms which usually occur at branch points.
Clinical presentation
Middle-aged patients with subarachnoid hemorrhage.
Pathology
A focal defect in the arterial wall c...
Article
Avascular plane of Brodel
The avascular plane of Brodel is the section of renal parenchyma between 2/3 anterior and 1/3 posterior kidney on the cross-section that is relatively avascular. The reason for its relative avascularity is that it represents the plane where the anterior and posterior segmental renal artery branc...
Article
Inguinal hernia repair plug
Inguinal hernia repair plug refers to a nonabsorbable material such as a polypropylene inserted intraoperatively into an inguinal hernial defect.
Pathology
Usually located anterior to the iliac vessels at the level of the inguinal canal. Size varies with mean long axis diameter 2.6 cm. Unilate...
Article
Winslow pathway
The Winslow pathway is a type of collateral vessel communication which connects the mammary arteries through the internal thoracic arteries to the inferior epigastric arteries and then into the external iliac arteries 3. It may recanalize in conditions such as aortoiliac occlusive disease 3. Thi...
Article
Endocrine venous sampling
Endocrine venous sampling is a set of similar interventional techniques proposed for the specific diagnosis of some endocrine disorders such as:
inferior petrosal sinus sampling
evaluates for ACTH-secreting pituitary adenoma as etiology for endogenous Cushing syndrome
selective venous sampli...
Article
Coronary stent
Coronary stents or coronary artery stents are expandable tubular medical meshwork devices used for interventional treatment of coronary artery disease and prevention of negative remodeling and vascular recoil, restenosis as well as abrupt vessel occlusion from local coronary artery dissection af...
Article
Endoleak
Endoleaks are characterized by persistent blood flow within the aneurysm sac following endovascular aneurysm repair (EVAR). Normally the aortic stent-graft used for EVAR excludes the aneurysm from the circulation by providing a conduit for blood to bypass the sac.
Epidemiology
An endoleak is a...
Article
CT guided thoracic biopsy
CT guided thoracic biopsy is usually performed for the diagnosis of suspicious lung, pleural, or mediastinal lesions. It can be performed as an outpatient procedure where patient monitoring and complications support are available. A small percentage of lung and pleural biopsies may be performed...
Article
Transrectal ultrasound–guided prostate biopsy
Transrectal ultrasound–guided prostate biopsy is considered the standard approach for prostate biopsy and is most commonly performed on an outpatient basis following positive screening for prostate cancer. It is not a targeted biopsy procedure.
Nowadays it is possible to perform targeted samp...
Article
Caroticocavernous fistula
Caroticocavernous fistulas represent abnormal communication between the carotid circulation and the cavernous sinus. They can be classified as direct or indirect which are separate conditions with different etiologies.
Epidemiology
Direct caroticocavernous fistulas are often secondary to tra...
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
Extra-articular injection
Extra-articular injections occur when the needle tip is not within the targeted joint during joint injections.
Terminology
Defined by the presence of contrast outside of a joint in fluoroscopic or CT guided procedures, or the lack of direct visualization and resisted flow of intra-articular in...
Article
Jugular venous catheters
The internal jugular vein is a preferred site for venous access for large lumen, long-term central venous catheters for chemotherapy, hemofiltration and plasma exchange. These are commonly referred to as (internal) jugular venous (IJV) catheters.
Typically, the right internal jugular is used as...
Article
Glenohumeral joint hydrodilatation
Glenohumeral joint (shoulder) hydrodilatation or tension arthrography is an established treatment for adhesive capsulitis of the shoulder (frozen shoulder) and can be performed using a variety of modalities.
Indications
adhesive capsulitis of the shoulder
Contraindications
anticoagulation/c...
Article
Coronary in-stent restenosis
Coronary in-stent restenosis (ISR) is referred to as an increasing loss of the stented arterial lumen after a percutaneous coronary intervention (PCI) and coronary stent placement which requires revascularization.
Terminology
However, there are different clinical and angiographic definitions:
...
Article
Endosaccular flow disruption devices
Endosaccular flow disruption devices, also simply known as flow disruptors, are used for the treatment of either ruptured or unruptured saccular, wide-neck, usually bifurcation as well as side-wall intracranial aneurysms. Their primary function is to stop blood from flowing into the aneurysm, al...
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