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
Stereotactic breast biopsy
Stereotactic breast biopsy refers to percutaneous sampling of breast tissue using mammographic guidance for targeting.
Indications
It is the biopsy method of choice when the finding of interest is best seen on mammography, such as microcalcifications (most common), architectural distortion, or...
Article
Thoracentesis
Thoracentesis, commonly known as a pleural tap or chest tap, is a procedure where excess pleural fluid is drained from the pleural space for diagnostic and/or therapeutic reasons. Ultrasound-guided thoracentesis performed by radiologists has been shown to have fewer complications than blind thor...
Article
Ultrasound guided percutaneous drainage
Ultrasound guided percutaneous drainage is one form of image guided procedure, allowing minimally invasive treatment of collections that are accessible by ultrasound study.
It has several advantages and disadvantages over CT, which include:
Advantages
is a dynamic study, allowing greater prec...
Article
Ultrasound-guided peripheral intravenous cannulation
Peripheral intravenous cannulation under ultrasound guidance is the placement of a cannula into a peripherally-located vein under the direct vision of ultrasound. This process allows the cannulation of veins that are unable to be visualized or palpated without ultrasound. In trained individuals ...
Article
Caudal epidural injection
Caudal epidural injections, or sacral hiatus epidural injections, are one of several possible spinal epidural injections.
Indications
Typically, epidural injections are performed in patients who are currently not surgical candidates. The caudal injection can be performed when patients are on ...
Article
Spinal epidural injection
Epidural spinal injections are one of the more frequently performed spinal interventional procedures. Three approaches to the epidural space exist:
caudal epidural injection (via the sacral hiatus)
interlaminar epidural injection
cervical interlaminar epidural injection
lumbar interlaminar ...
Article
Sacroiliac joint injection
Sacroiliac joint injections can be performed using a posterior approach into the sacroiliac (SI) joint under fluoroscopic or CT guidance. It is often performed bilaterally.
Indications
diagnostic: relief of pain after injection of local anesthetic
therapeutic: to relieve pain from degenerativ...
Article
Breast ductography
Breast ductography (a.k.a. galactography) is an imaging technique which is used to evaluate lesions causing nipple discharge. It helps in precisely locating the mass within breast tissue and gives useful information for surgical approach and planning.
Technique
A blunt-tipped sialogram needle ...
Article
Percutaneous nephrostomy salvage and tube exchange
Percutaenous nephrostomy salvage and tube exchange are two procedures undertaken in those with long term nephrostomies. These patients are often either unsuitable or do not wish to have ureteric stenting to relieve their urinary tract obstruction.
Nephrostomy salvage
Nephrostomy salvage is und...
Article
Irreversible electroporation
Irreversible electroporation (IRE), also known as non-thermal irreversible electroporation (NTIRE), is a non-invasive soft-tissue ablation technique used for tumor ablation in regions that require very high precision and preservation of surrounding collagenous structures (vessels and ducts) and ...
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
Ultrasound-guided biopsy
Ultrasound-guided biopsy is one form of image-guided biopsy, typically performed by a radiologist. It is the most common form of image-guided biopsy, offering convenience and real-time dynamic observation with echogenic markers on cannulae allowing for precise placement.
It can potentially be u...
Article
Tracheobronchial stent
A tracheobronchial stent is a device used to treat symptomatic airway compression.
This device is inserted under bronchoscopic guidance in patients with external compression from mediastinal-based malignancy, for example, lung or esophageal cancers. It may also be used in the treatment of trac...
Article
Ureteric stent
Ureteric stents, also known as ureteral stents, double J stents, JJ stents or retrograde ureteric stents, are urological catheters that have two "J-shaped" (curled) ends, where one is anchored in the renal pelvis and the other inside the bladder.
Stents are used for the free passage of urine fr...
Article
Implantable port
Implantable ports, also known as chemoports, totally implantable central venous access ports or Port-A-Caths, are a type of central venous catheter for patients requiring long-term venous access. They offer the ability to have long-term central venous access with some of the advantages over peri...
Article
Percutaneous liver tumor ablation
Percutaneous liver tumor ablation techniques are well-established and effective therapeutic alternatives for the treatment of primary and secondary liver tumors. Hepatocellular carcinoma (HCC) and colorectal oligometastatic disease are the most common indications. There are specific indications ...
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
Rotational vertebral artery occlusion syndrome
Rotational vertebral artery occlusion syndrome, also known as bow hunter's syndrome, is a rare form of vertebrobasilar insufficiency secondary to dynamic compression of the usually dominant vertebral artery.
Clinical features
Symptoms are usually transient and elicited upon rotation of the he...
Article
Superior hypogastric nerve block
Superior hypogastric nerve block is a valuable tool for pain relief in the setting of uterine fibroid embolization. This procedure results in significant ischemic pain, peaking at 6-8 hours and lasting approximately 24 hours, then followed by a lesser degree of post-embolization pain which can l...
Article
Esophageal stent
Esophageal stents are a treatment option in patients with esophageal strictures. It is most commonly used for symptomatic relief in those with dysphagia secondary to malignancy. The stent is typically covered in nature and inserted endoscopically or fluoroscopically. The distal esophagus is the ...
Unable to process the form. Check for errors and try again.