Diagnostic imaging of ventriculoperitoneal shunt malfunctions …
1998年5月1日 · Most pediatric patients with hydrocephalus are treated with ventriculoperitoneal (VP) shunt placement. However, shunt malfunction is common and is usually caused by mechanical failure. Shunt obstructions may be confirmed with radioisotope examination or with fluoroscopically guided injection of iodinated contrast material into the shunt reservoir.
Imaging Evaluation of CSF Shunts - AJR
2013年12月26日 · Modern shunts are most commonly placed in the peritoneum, right atrium, or pleural space. Ventriculoperitoneal shunts are preferred by most neurosurgeons because of fewer complications and the relative ease of peritoneal access .
Ventriculoperitoneal Shunt Malfunction - Radiology Key
2016年6月30日 · Obstruction of the proximal shunt catheter is the most common cause of shunt malfunction in the first 2 years, often shortly after placement from postoperative debris and blood products. Other common causes of obstruction include shunt kinking, choroid plexus ingrowth at the proximal tip, and pseudocyst formation at the distal tip.
Intraabdominal Complications Secondary to Ventriculoperitoneal Shunts ...
The CT images of 70 patients (33 men and 37 women; mean age, 48.5 years) who underwent ventriculoperitoneal shunt placement and abdominopelvic CT because of shunt-related abdominal symptoms were reviewed retrospectively.
The Neuroimaging Studies in Children with Ventriculoperitoneal Shunt ...
2018年1月22日 · Shunt complications can be divided into three general categories: mechanical failure (improper insertion of shunt, partial shunt blockage, fracture or displacement of the shunt portions or shunt movement from the initial place), dysfunctional shunts and infections .
Malposition of ventriculoperitoneal shunt | Radiology Case ...
This is a case of a malpositioned ventriculoperitoneal shunt which terminated in the subcutaneous tissue anterior to rectus abdominis muscle. Neurosurgery was consulted and the patient underwent a distal shunt revision. The follow-up shunt series demonstrated normal positioning of the distal aspect of the shunt within the peritoneal cavity.
Yield of early postoperative computed tomography after frontal ...
2018年6月19日 · We found a rather low yield for early routine postoperative cranial CT after frontal VP-shunt placement. Therefore, careful selection of patients who might benefit, considering the underlying disease and preoperative radiological findings, could reduce unnecessary costs and exposure to radiation.
Ventriculoperitoneal shunt | Radiology Reference Article - Radiopaedia.org
2024年4月5日 · Ventriculoperitoneal (VP) shunts are devices used to shunt cerebrospinal fluid in the treatment of hydrocephalus. A catheter is placed with its tip in the ventricle. The external portion of the catheter is connected to a valve that regulates the flow of CSF based on pressure.
One-third of all shunts fail within 1 year of placement, and in children 4.5% per year thereafter. Manifestations of shunt failure are variable so patients with shunts frequently undergo radiographic evaluation. The important part of the evaluations …
Ventriculo-Peritoneal, Shunt, Fracture, VP - LearningRadiology
2024年11月23日 · Improper placement . Shunt can be improperly placed at level of ventricles or drainage cavity; Signs and symptoms of improper placement similar to shunt occlusion ; Appear in early postoperative period; Once suspected, shunt series and head CT scan are used to confirm diagnosis; Lateral abdominal film may show an extra-peritoneal distal catheter
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