Vp Shunt Valve X Ray

Avoid shunt implantation if infection is present within the body.

Vp shunt valve x ray. Most pediatric patients with hydrocephalus are treated with ventriculoperitoneal vp shunt placement. Programmable cerebrospinal shunts are a type of ventriculoperitoneal shunt that can be set to different csf pressure settings. Usually a simple lateral skull x ray helps to identify the type of valve and it s adjustment.

Delay the shunt procedure when infections such as meningitis ventriculitis. This can be accomplished by aligning the proximal and distal connectors of the x ray image. Valves not fixed in the subcutaneous tissue pose a high risk to migrate into the distal site or retrograde into ventricles.

They are of particular value in normal pressure hydrocephalus and in pediatric patients. Shunt pass is not always at hand and documents from external hospitals can be missing. 1 provides radiographic features with reference images of the settings of five common valves codman hakim programmable valve medtronic.

The purpose of this study is to provide a single reference for the identification of programmable shunt valves and the interpretation of programmable shunt valve settings. Reviewed 2016 amr. Align red centerline of valve on overlay with the centerline of the valve x ray under review.

Shunt series for vp shunt x ray guideline. 8 views ap and lateral abdomen ap and lateral chest ap and lateral c spine ap and lateral skull. The 2010 ajnr article by lollis et al.

Indications departmental protocols will vary but the overall goal is to image the shunt in its entirety to assess. Shunt obstructions may be confirmed with radioisotope examination or with fluoroscopically guided injection of iodinated contrast material into the shunt reservoir. The verification of shunt adjustment so called opening pressure and also the primary identification of the implanted valve type can be a problem in daily practice.