Search results for “also”

192 results found
Article

Transcranial Doppler sonography (ultrasound)

Transcranial​ ​Doppler​ ​(TCD)​, also known as transcranial color-coded duplex sonography (TCCS) is a sonographic study of intracranial structures and blood vessels, used most commonly to identify the hemodynamic state present in the vertebrobasilar circulation and the circle of Willis.  Termin...
Article

Iodinated contrast media

Iodinated contrast media are contrast agents that contain iodine atoms used for x-ray-based imaging modalities such as computed tomography (CT). They can also be used in fluoroscopy, angiography and venography, and even occasionally, plain radiography. Although the intravenous route of administr...
Article

Contrast-enhanced mammography

There are 2 types of contrast-enhanced mammography examination – temporal subtraction and dual-energy.  Initial work in the early 2000s used temporal subtraction, but artifacts due to patient movement during prolonged compression limited its diagnostic usefulness. Travieso et al produced a usef...
Article

Wrist (oblique view)

The oblique wrist view is part of a three view series of the wrist and carpal bones. It is not generally performed in follow-up studies unless specifically requested. Indications The oblique wrist radiograph is requested for myriad reasons including but not limited to trauma, suspected infecti...
Article

Double contrast barium enema technique

Double contrast barium enema (DCBE) technique is a method of imaging the colon with fluoroscopy. "Double contrast" refers to imaging with the positive contrast of barium sulfate contrast medium (rarely water-soluble iodinated contrast) as well as with the negative contrast of gas (CO2 preferable...
Article

Slit-beam digital radiography system

EOS® imaging system (also known as a slot-scanning device or slit-beam digital radiography system) is an x-ray technology that allows simultaneous acquisition of AP and lateral images of the entire body in a natural, erect position, and is also capable of performing three-dimensional reconstruct...
Article

Transesophageal echocardiography

A standard transesophageal echocardiography (TOE, or TEE in US English) is a type of echocardiography using an endoscopic transducer, which is advanced into the thoracic esophagus, offering generally superior visualization of the great vessels and posterior cardiac structures than the standard t...
Article

Pediatric chest (PA erect view)

The posteroanterior erect chest view is often performed in older pediatric patients; when the patient is able to cooperate with sitting or standing erect. This chest view examines the lungs, bony thoracic cavity, mediastinum and great vessels. Indications The PA erect view is often chosen over...
Article

Lutetium-177 dotatate

Lutetium-177 dotatate, also known as Lu-177 oxodotreotide and by the trade name Lutathera (Novartis Pharmaceuticals Corporation, USA), is a theranostic agent approved as a second-line agent for the treatment of patients with inoperable and/or metastatic well-differentiated neuroendocrine tumors ...
Article

Pediatric chest (supine view)

In pediatric imaging, the anteroposterior supine chest x-ray is beneficial for imaging unconscious or uncooperative patients. Indications This view is preferred in infant and neonate imaging, whilst AP erect and PA erect views are ideal for children able to cooperate in sitting or standing 1. ...
Article

Digital Imaging and Communications in Medicine (DICOM)

Digital Imaging and Communications in Medicine (DICOM) is a worldwide standard for the storage and transmission of medical imaging. The standard therefore defines both a file format and a networking protocol. The standard also has some specifications in terms of file storage on some types of med...
Article

Pineal and tectal plate protocol (MRI)

MRI protocol for the pineal and tectal plate assessment is a group of MRI sequences put together to best approach tumors involving this region.  The pineal region is best imaged with MRI although CT, angiography, and ultrasound (in infants) also play a role. Please refer to the article pineal r...
Article

Step-oblique mammography

Step-oblique mammography is an accurate technique for determining whether a mammographic finding visible on multiple images on only one projection (but not elucidated using standard additional mammographic projections) represents a summation artifact or a true mass and for precisely localizing t...
Article

Contrast media extravasation

Contrast media extravasation (CMEV) refers to the leakage of intravenously-administered contrast media from the normal intravascular compartment into surrounding soft tissues; it is a well-known complication of contrast-enhanced CT. It can also occur in MRI, but the complications are rare given ...
Article

Late arterial phase

The late arterial phase, also known as the corticomedullary phase or early venous portal phase, is a contrast-enhanced CT or MRI series, in which there is an optimal enhancement of structures that get their blood supply directly from the arterial system. The standard characteristics for this ph...
Article

Style guide and help

The Radiopaedia style guide is a set of guidelines to help contributors write content adhering to the highest possible academic standards as well as ensuring that contributions are in a consistent style. general overview of Radiopaedia.org what Radiopaedia.org IS what Radiopaedia.org is NOT ...
Article

Pediatric finger (lateral view)

The lateral finger view for pediatrics is part of a two view series examining the distal metacarpal, distal, middle and proximal phalanges of the finger of interest. The patient position can vary depending on which finger is being imaged.  Indications This projection is useful for diagnosing f...
Article

Pediatric chest (AP erect view)

The anteroposterior erect chest view is ideal in younger cooperative pediatric patients (approximately 3-7 years old; this age range is only a guide). This chest view examines the lungs, bony thoracic cavity, mediastinum and great vessels. Indications  The AP erect view is often chosen over th...
Article

Centrifugal (inside-out) enhancement of liver hemangioma

Centrifugal (inside-out) enhancement of liver hemangioma are a type of atypical hepatic hemangioma, which due to its imaging features, often raises the concern of a malignant process rather than a benign one.  Epidemiology Centrifugal (inside-out) enhancement of liver hemangiomas are a relativ...
Article

Yttrium-90 ibritumomab tiuxetan

Yttrium-90 ibritumomab tiuxetan, also known by the trade name Zevalin (Acrotech Biopharma LLC, USA), is a theranostic radiopharmaceutical approved for the treatment of patients with relapsed or refractory low grade or follicular non-Hodgkin lymphoma (NHL). More specifically, it is a radioimmunot...

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