Imaging after titanium cranioplasty

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Abstract
Titanium cranioplasty has been used in our unit for reconstruction of cranial defects following trauma, tumour resection and bone loss due to postcraniotomy infection. It has previously been assumed that imaging to assess recurrence of disease progression after cranioplasty would be severely compromised in the presence of metallic material. Titanium is a non-ferrous metal of low atomic number, which is relatively radiolucent and allows exceptionally clear images to be obtained without significant degradation of image quality, on CT and magnetic resonance (MR) imaging. Cases are presented that demonstrate the use of CT contrast cisternography and MR imaging after titanium cranioplasty. On the basis of its strength, biocompatibility and excellent handling characteristics, allied to its suitability for all post-operative imaging techniques, we conclude that titanium plate is the material of choice for cranioplasty.

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