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.

13 results found
Article

CT polytrauma (technique)

CT polytrauma/multitrauma (also called trauma CT) is an increasingly used test in the patient with multiple injuries sustained after significant trauma. There is some evidence that trauma patients who undergo whole body CT (WBCT) / panscan have better survival than patients who undergo selectiv...
Article

Dacryocystography

Dacryocystography is fluoroscopic contrast examination of the nasolacrimal apparatus. The duct is cannulated enabling contrast to be instilled into the nasolacrimal system. Indications The most frequent indication is epiphoria: tearing or watering of the eyes. Technique Equipment is similar ...
Article

Modified Stenvers view

The modified Stenvers view is an oblique radiographic projection used to demonstrate the petrous temporal bone, IAM and bony labyrinth. It is primarily used to assess electrode placement following the insertion of a cochlear implant. Specifically it assesses the: integrity, positioning, and dep...
Article

Normal head and neck imaging examples

This article lists examples of normal imaging of the head and neck and surrounding structures, divided by region and modality. Neck For normal spinal imaging, please see: normal spinal imaging Plain radiographs soft tissue: example 1 soft tissue: example 2 CT soft tissue contrast: exampl...
Article

Pöschl projection

Pöschl projection is used in imaging the temporal bone. The plane of projection is perpendicular to the long axis of the temporal bone. In the Pöschl projection the temporal bone is imaged from its anteromedial to posterolateral aspects. See also Stenvers view
Article

Skull (AP view)

The skull AP view is a nonangled AP radiograph of the skull. This view provides an overview of the entire skull rather than attempting to highlight any one region. Patient position the back of patient's head is placed against the image detector the petrous ridge will overlap the lower 1/3 of ...
Article

Skull (Caldwell view)

The Caldwell view is a caudally angled PA radiograph of the skull, designed to better visualise the paranasal sinuses, especially the frontal sinus. Patient position the patient is seated in front of the upright detector the patient's forehead is placed against the image detector forehead an...
Article

Skull (PA view)

The skull PA view is a non-angled PA radiograph of the skull. This view provides an overview of the entire skull rather than attempting to highlight any one region. Patient position the patient is erect the patient's forehead is placed against the image detector allowing for the nose to be in...
Article

Skull (Towne view)

The Towne view is an angled AP radiograph of the skull. Patient position the patient's nuchal ridge is placed against the image detector dorsum sella overlies the foramen magnum image size: 24 x 30 cm X-ray beam features the beam travels anterior to posterior (AP) direction, with ~30-40° o...
Article

Skull (Waters view)

The occipitomental (OM) or Waters view is an angled PA radiograph of the skull, with the patient gazing slightly upwards. It can be used to assess for facial fractures, as well as for acute sinusitis. Skull radiographs, in general, are rapidly becoming obsolete, being replaced by much more sensi...
Article

Stenvers view

Stenvers view is a oblique radiographic projection used to demonstrate the petrous temporal bone, IAM and bony labyrinth. Fine slice multi-detector CT of the petrous bone has replaced the Stenver view due to far superior anatomic detail. It was also used to assess electrode placement following t...
Article

Tc-99m sestamibi

Tc-99m sestamibi is one of the technetium radiopharmaceuticals.  Characteristics photon energy: 140 KeV physical half life: 6 hours normal distribution: thyroid, parathyroid, heart excretion: hepatobiliary target organ: colon, kidneys, bladder, gallbladder Uses, doses and timings parathy...
Article

Temporomandibular joint (axiolateral view)

The axiolateral temporomandibular view allows for visualisation of the articular tubercle, mandibular condyle and fossa and is thus useful to identify structural changes and displaced fractures, as well as assess excursion and joint spaces.  Clinical indications include trauma, the presence of ...

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