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 edited by countless contributing members over a period of time. A global group of dedicated editors oversee accuracy, consulting with expert advisers, and constantly reviewing additions.

Create new article

Filtered (2)Done (clear)

+Systems

×Article Sections

+Sort By

ADVERTISEMENT: Supporters see fewer/no ads

32 results found

Quadratus femoris injection (technique)

Quadratus femoris injections under image guidance ensure precise delivery of an injectate and ensure the sciatic nerve is avoided during the procedure. CT and ultrasound can be used, with ultrasound becoming more challenging in those with larger body habitus. Indications therapeutic for ischi...

Angioleiomyoma

Angioleiomyoma also known as angiomyoma or vascular leiomyoma is a benign pericytic or perivascular soft tissue tumor. 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 affected 1-...

Subtalar joint injection (technique)

Subtalar joint injections are most often performed for osteoarthritis and the posterior subtalar joint is targeted. Ultrasound, fluoroscopy and CT guidance can be used. Indications osteoarthritis diagnostic Contraindications Absolute anaphylaxis to contrast/injectates active local/system...

Pudendal nerve block (technique)

Pudendal nerve blocks are performed on those with suspected or proven pudendal neuralgia. Using CT will ensure accurate needle placement, which aims for a perineural pudendal nerve injection in the pudendal canal, also known as Alcock's canal. Indications pudendal neuralgia diagnostic Contr...

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...

Arthrocentesis

Arthrocentesis or joint aspiration is an interventional procedure done for the collection of synovial fluid. History The existence of liquid inside joints was first mentioned in the Corpus Hippocraticum, later in the 16th century, Paracelsus coined the name “synovia” for synovial fluid. Indic...

Knee joint injection (technique)

Knee joint injections under image guidance ensure precise delivery of an injectate into the knee joint. Either fluoroscopy, ultrasound or CT can be used to guide and administer injectates, which may be diagnostic (e.g. anesthetic), "therapeutic" (e.g. anesthetic/steroids, PRP), or for CT or MR a...

Sternoclavicular joint injection (technique)

Sternoclavicular joint (SCJ) injections under image guidance ensure precise delivery of an injectate into the joint and importantly that needle depth is under direct visualization. Indications pain arthropathy, e.g. osteoarthritis diagnostic injection Contraindications Absolute anaphyla...

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...

Greater trochanteric bursa injection (technique)

Greater femoral trochanteric bursa injections under ultrasound guidance ensure the injectate is accurately given into the bursa. The greater trochanteric bursa is the largest of the bursae surrounding the proximal femur, with the others including the subgluteus minimus and subgluteus medius burs...

Long head of biceps brachii tendon sheath injection (technique)

Long head of biceps brachii (LHB) tendon sheath injections under ultrasound guidance ensure accurate delivery of injectate, which is important as these injections are often performed for diagnostic purposes. Indications pain diagnostic injection alternative access to the glenohumeral join...

Acromioclavicular joint injection (technique)

Acromioclavicular joint (ACJ) injections under image guidance ensure precise delivery of an injectate into the joint. Ultrasound allows for real-time visualization of the needle and administration of the injectate. Fluoroscopy is an alternative method of image guidance. Indications pain: arth...

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...

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 ...

Median nerve block (ultrasound-guided)

Median nerve block is a technique used for providing anesthesia to the median nerve territory, it may be performed at the level of the arm, elbow, forearm or the wrist. Indications fracture reductions surgical repair of fractures incision and drainage of cysts and abscesses post-operative a...

Rotator cuff calcific tendinitis barbotage

Rotator cuff calcific tendonitis can be treated with various techniques including ultrasound-guided barbotage, which is also known as ultrasound-guided needling and lavage. It is often performed in conjunction with a subacromial bursal injection. Alternative treatments include extracorporeal sho...

Arthrogram (anesthetic)

An arthrogram injection is a procedure in which a solution is administered into a joint under imaging guidance. These procedures are more accurately named direct arthrogram injections, although they are routinely known as arthrograms. Fluoroscopy, ultrasound, and CT can be used for image guidanc...

Arthrogram (CT)

A CT arthrogram is a CT performed after a joint is injected with a solution containing iodinated contrast. They are not commonly abbreviated as CTA, which will be confused with CT angiography. An arthrogram also refers to the procedure of injecting a joint. Indications shoulder: instability, g...

Arthrogram

An arthrogram (or arthrography) is a commonly performed procedure in musculoskeletal radiology, which can refer to both an injection into a joint, and cross-sectional imaging after a joint is injected. Indications Arthrograms are performed for a variety of indications including: labral tear ...

Arthrogram (MRI)

An MR arthrogram is an MRI performed after a joint is injected with a solution containing gadolinium. Sometimes abbreviated to MRA, which can be confused with MR angiography. MRI can also be performed after an injection is not directly administered into the joint, via an indirect arthrogram. An ...

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...

Shoulder injection (disambiguation)

Shoulder injection is a general term, especially for the patient, for a variety of procedures including: acromioclavicular joint injection glenohumeral joint injection glenohumeral (shoulder) arthrography glenohumeral (shoulder) hydrodilatation long head of biceps tendon sheath injection r...

Glenohumeral joint injection (technique)

Glenohumeral joint injections (often referred to as shoulder injections ) are performed as part of a number of therapeutic and imaging procedures using a variety of approaches and modalities. The underlying principles shared by all techniques are to avoid damage to the glenoid labrum, long head ...

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...

Subacromial bursal injection

Subacromial bursal corticosteroid injections, also known as subacromial-subdeltoid bursal injections, are used in patients with limited or no response to initial treatment with impingement syndrome, subacromial bursitis and/or rotator cuff disorders. Non-steroidal anti-inflammatory drugs (NSAIDs...

Epidural blood patch

Epidural blood patch is a treatment option for patients with craniospinal hypotension or post-lumbar puncture headaches. The procedure can be done blind or under fluoroscopic or CT guidance, and is performed predominantly by radiologists and anesthesiologists. Indications craniospinal hypoten...

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...

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...

Vertebroplasty

Vertebroplasty is an imaging-guided procedure which entails percutaneous injection of surgical polymethylmethacrylate (PMMA) cement into a diseased vertebral body. Vertebroplasty provides pain relief and strengthens the bone of vertebrae weakened by disease. Indications It can be used as a tre...

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...

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 ...

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...

Updating… Please wait.

Unable to process the form. Check for errors and try again.

Thank you for updating your details.