Articles
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248 results found
Article
Foot injection (disambiguation)
Foot injection is a non-specific term often used by patients, about tarsal or metatarsal joint injections and to other procedures which include:
calcaneocuboid joint injection
metatarsophalangeal joint (MTPJ) injection
naviculocuneiform joint injection
plantar fascia injection
plantar fasc...
Article
Endovascular clot retrieval (ECR)
Endovascular clot retrieval (ECR), also known as mechanical thrombectomy (MT) or endovascular thrombectomy (EVT), is increasingly performed in patients presenting with large vessel occlusion (LVO), especially those with a large ischemic penumbra that is likely to progress to ischemic stroke. To ...
Article
Venous intravasation
Venous intravasation is the unintended introduction of radiographic contrast material into the local venous system. It is a well-recognized phenomenon during retrograde urethrograms 1,2 and hysterosalpingograms (HSG), although can occur with other invasive procedures in the vicinity of venous pl...
Article
CT guided percutaneous drainage
CT guided percutaneous drainage is one form of image-guided drainage, allowing minimally invasive treatment of collections, potentially anywhere in the body. Although less commonly used than ultrasound guidance, it is particularly valuable in gaining access to deeper or more posterior parts of t...
Article
Endovascular arteriovenous fistula creation
Endovascular arteriovenous fistula creation is a minimally invasive alternative for the creation of arteriovenous fistulae for haemodialysis access.
Technique
Catheter-based technology and image guidance in the form of ultrasound and fluoroscopy is utilized create a side-to-side anastomosis be...
Article
Splenic artery embolization
Splenic artery embolization is an endovascular technique for treatment of splenic and splenic artery pathology as an alternative to splenic artery ligation or splenectomy. It often results in successfully treating the underlying pathology, while maintaining at least partial splenic function.
I...
Article
Hip joint injection (technique)
Hip joint injections can be performed with a variety of image guidance, including fluoroscopy and ultrasound, which are used to administer MRI arthrogram injectate, or a steroid containing anesthetic arthrogram injectate.
Indications
MRI: labral injury
anesthetic
pain/arthropathy, e.g. ost...
Article
Glenohumeral arthrography
Glenohumeral (shoulder) arthrography is an imaging technique used to evaluate the glenohumeral joint to evaluate the joint components. A glenohumeral joint injection is usually performed under fluoroscopic guidance although ultrasound and CT can be also be used. An alternative to direct arthrogr...
Article
MR arthrogram solution
MR arthrogram solution is a gadolinium-containing mixture injected into a joint for MR arthrography.
Terminology
Fluoroscopy, ultrasound or CT guidance can be used to cannulate a joint, which is then injected with the MR arthrogram solution. MR arthrogram solutions differ in different instit...
Article
Flow-diverter stent
Flow-diverter stents are important devices in the management of intracranial aneurysms in both acute and elective settings, especially ones that are large, broad-necked, or fusiform.
Complications
Understanding the complication rates is important in obtaining informed consent from patients. In...
Article
Pulmonary artery catheter
Pulmonary artery catheters (PAC or Swan-Ganz catheters) are balloon flotation catheters that are inserted into the pulmonary arteries. They can be inserted simply, quickly, with little training and without fluoroscopic guidance at the bedside, even in the seriously ill patient.
Usage
Historica...
Article
Fractional flow reserve
Fractional flow reserve (FFR) is a technique to evaluate the hemodynamic relevance of coronary artery stenoses 1,2. It is defined as "the ratio of maximal flow achievable in the stenotic coronary artery to the maximal flow achievable in the same coronary artery if it was normal" 1.
Fractional f...
Article
Percutaneous renal biopsy
Percutaneous renal biopsy, utilizing either ultrasound or CT, allows for an accurate, reliable method of acquiring renal tissue for histopathological assessment.
The biopsy may be of a native or transplant kidney. It is divided into two types:
non-focal or non-targeted
focal or targeted (i.e....
Article
CT guided adrenal biopsy
CT guided adrenal biopsy is usually performed for the diagnosis of indeterminate adrenal nodules or tumors. This procedure has steadily declined in use since 1990s due to improvements in, and validation of, non-invasive CT and MR techniques that can now diagnose benign adrenal lesions with a hig...
Article
Percutaneous cholecystostomy
Percutaneous cholecystostomy is the image-guided placement of a drainage catheter into the gallbladder lumen. This minimally invasive procedure can aid in patient stabilization in order to enable a more measured surgical approach with time for therapeutic planning.
A 2018 study demonstrated no ...
Article
Thoracic duct embolization
Thoracic duct embolization (TDE) is a safe, efficacious treatment for chylothorax 1. Chylothoraces with a low drain output (<1L/day) are traditionally managed conservatively with dietary change, whilst high output (>1L/d) are managed with surgical thoracic duct (TD) ligation 2.
Thoracic duct em...
Article
CT myelography
CT myelography (CTM) is a myelography technique used mainly to assess for potential spinal canal stenosis when MRI is contraindicated or when dynamic imaging is required.
History
CT myelography was first performed in 1976 2 and became the gold standard for imaging the spinal canal and cord unt...
Article
Facet joint injection
Facet (zygapophyseal) joint injections are performed primarily for the diagnosis and differentiation of facet syndrome and radicular pain syndrome, and are one of the spinal interventional procedures. They can be performed under fluoroscopic, or CT image guidance, and cervical, thoracic or most ...
Article
Sternoclavicular joint injection (technique)
Sternoclavicular joint (SCJ) injections under image guidance ensure precise delivery of an injectate into the joint and, importantly, that the needle is under direct visualization.
Indications
pain
arthropathy, e.g. osteoarthritis
diagnostic injection
Contraindications
Absolute
anaphylaxi...
Article
Fluoroscopic myelography
Fluoroscopic myelography is a technique that allows the visualization of the theca by the introduction of contrast medium into the CSF. This is usually accomplished by a lumbar puncture, or less commonly a suboccipital puncture.
The patient can then be tilted and rotated to cause the contrast, ...