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.
248 results found
Article
Fluoroscopy guided lumbar puncture
Fluoroscopy-guided lumbar puncture (LP) is a minimally invasive, image-guided diagnostic and therapeutic procedure that involves the removal of a small volume of cerebrospinal fluid (CSF) from, or an injection of medication or other substance (e.g. radiotracer, chemotherapy agents) into the lumb...
Article
Cerebral angiography
Cerebral angiography is an interventional procedure for the diagnosis and/or treatment of intracranial pathology.
Indications
Cerebral digital subtraction angiography (DSA) is indicated in a variety of settings including:
diagnosis and treatment of:
aneurysms 1
acute ischemic stroke
vascul...
Article
Endotension
Endotension, also referred to as a type V endoleak, is not a true leak but is defined as continued expansion of the aneurysm sac greater than 5 mm after endovascular aortic repair (EVAR) without radiographic evidence of a leak site / demonstrable type I-IV endoleak
Pathology
It is a poorly un...
Article
Shepherd hook catheter
The Shepherd hook catheter is a common reverse-curve selective access catheter designed for catheterization and subselection of visceral arteries, in order to secure access, advance, and exchange devices, or deliver contrast in the target vessel.
It is particularly adapted for the catheterizati...
Article
Cobra catheter
The Cobra tip shape configuration is used in selective angiographic catheters and designed for catheterization and subselection of vessels, in order to secure access, advance, exchange devices, or deliver contrast in the target vessel 1.
The Cobra tip-shape configuration is also used in urology...
Article
Simmons catheter
The Simmons catheter, also known as Sidewinder 1, Sim, or SS catheter, is a common reverse-curve angiographic selective access catheter designed for catheterization and subselection of brachiocephalic or visceral arteries, in order to secure access, advance, and exchange devices, or deliver cont...
Article
Selective access catheters
Selective access catheters are designed for catheterization and subselection of vessel ostia, biliary, urogenital, or digestive tracts. They come in different tip shapes that have wall-seeking behavior. They also ensure the advancement down the target destination and provide positional stability...
Article
Radial artery access
Radial artery access is a minimally invasive approach for vascular access in interventional procedures. This route has widely been adopted since it reduced significantly the transfemoral-related complications. It is the recommended access route by the European Society of Cardiology for angiograp...
Article
Vertebroplasty and kyphoplasty
Vertebroplasty and its balloon-assisted variant, kyphoplasty, are imaging-guided procedures that involve percutaneous injection of surgical polymethylmethacrylate (PMMA) cement into a diseased vertebral body. Vertebroplasty provides pain relief and strengthens the bone of vertebrae weakened by d...
Article
Kumpe catheter
The Kumpe catheter, also known as KMP, is a selective access catheter designed for biliary and urinary tract cannulation, in order to secure access, navigate, advance, exchange devices, or deliver contrast in the target destination.
Properties
proximal end: luer lock hub
distal tip-shape: ang...
Article
Hepatic venous pressure gradient
Hepatic venous pressure gradient measurement is a safe and minimally invasive method to indirectly measure portal vein pressure in chronic liver disease patients suspected of developing portal vein hypertension.
This procedure is usually performed at the same time as the transjugular liver bio...
Article
Pelvic phlebography
Pelvic phlebography or pelvic venography is an interventional procedure, in which the pelvic and gonadal veins are opacified to assess venous and collateral system anatomy for the diagnosis, treatment and pre-operative planning of pelvic vein pathology.
This procedure is usually performed at th...
Article
Access guidewires
Access guidewires are interventional procedures wires used during the first steps of interventions, to secure stable access and sheaths/catheter insertion. They are quickly exchanged for a navigation wire thereafter.
The most common access wires are1:
Cope Mandril wire
Nitrex wire
Properties...
Article
Celiac plexus block
Celiac plexus block under image guidance is an easy and safe percutaneous procedure with good outcomes for pain palliation in patients who have chronic abdominal pain related to the celiac plexus.
This usually includes patients with advanced cancers, especially from upper abdominal viscera, su...
Article
Angioleiomyoma
Angioleiomyomas, also known as angiomyomas or vascular leiomyomas, are benign pericytic or perivascular soft tissue tumors.
Epidemiology
Angioleimyomas are rare and have been observed in a wide age range with a peak in the 4th to 6th decades of life. Generally, women are more commonly affect...
Article
Renal double curve catheter
The renal double curve catheter is an angiographic selective access catheter, designed for catheterization and subselection of acutely originating renal arteries 1 through a femoral approach, in order to secure access, advance, exchange devices, or deliver contrast.
It can also be used for the ...
Article
Superior vena cava stenting
Superior vena cava stenting is an interventional procedure used for the management of superior vena cava (SVC) obstruction.
Indication
This procedure is indicated in severe symptomatic SCV obstruction with failure of the medical treatment (e.g. corticosteroids, anticoagulation therapy, diureti...
Article
Ultrasound guided breast biopsy
Ultrasound-guided percutaneous breast biopsy is a widely used technique for an accurate histopathological assessment of suspected breast pathology. It is a fast, safe and economical procedure.
Indications
Ultrasound guidance is limited to lesions visible on ultrasound study. The biopsy is gene...
Article
Corticosteroids
Corticosteroids are drugs/medications widely used in several areas of medicine. They are also known as glucocorticoids, cortisone and colloquially steroids (note: do not mix up with anabolic steroids).
They are synthetic analogs of naturally occurring endogenous steroids produced by the adrenal...
Article
Thermoprotection techniques
Thermoprotection techniques are used to prevent thermal injury for non-target tissue, during thermal ablations (microwave, radiofrequency, or cryoablation), and some of them can be used to create free access for percutaneous procedures that would otherwise be blocked by non-target organs.
Disse...
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