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SSh versus TSE sequence protocol in rapid MR examination of pediatric patients with programmable drainage system

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Abstract

Purpose

A low radiation burden is essential during diagnostic procedures in pediatric patients due to their high tissue sensitivity. Using MR examination instead of the routinely used CT reduces the radiation exposure and the risk of adverse stochastic effects. Our retrospective study evaluated the possibility of using ultrafast single-shot (SSh) sequences and turbo spin echo (TSE) sequences in rapid MR brain imaging in pediatric patients with hydrocephalus and a programmable ventriculoperitoneal drainage system.

Methods

SSh sequences seem to be suitable for examining pediatric patients due to the speed of using this technique, but significant susceptibility artifacts due to the programmable drainage valve degrade the image quality. Therefore, a rapid MR examination protocol based on TSE sequences, less sensitive to artifacts due to ferromagnetic components, has been developed. Of 61 pediatric patients who were examined using MR and the SSh sequence protocol, a group of 15 patients with hydrocephalus and a programmable drainage system also underwent TSE sequence MR imaging. The susceptibility artifact volume in both rapid MR protocols was evaluated using a semiautomatic volumetry system.

Results

A statistically significant decrease in the susceptibility artifact volume has been demonstrated in TSE sequence imaging in comparison with SSh sequences. Using TSE sequences reduced the influence of artifacts from the programmable valve, and the image quality in all cases was rated as excellent. In all patients, rapid MR examinations were performed without any need for intravenous sedation or general anesthesia.

Conclusions

Our study results strongly suggest the superiority of the TSE sequence MR protocol compared to the SSh sequence protocol in pediatric patients with a programmable ventriculoperitoneal drainage system due to a significant reduction of susceptibility artifact volume. Both rapid sequence MR protocols provide quick and satisfactory brain imaging with no ionizing radiation and a reduced need for intravenous or general anesthesia.

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Author information

Authors and Affiliations

  1. Department of Neurosurgery, St. Anne´s University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic

    Eva Brichtová

  2. Department of Pediatric Radiology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic

    J. Šenkyřík

Authors
  1. Eva Brichtová
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  2. J. Šenkyřík
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Correspondence to Eva Brichtová.

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Conflict of interest

The authors hereby declare they have no actual or potential conflicts of interest with direct or potential influence on the presented work.

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Brichtová, E., Šenkyřík, J. SSh versus TSE sequence protocol in rapid MR examination of pediatric patients with programmable drainage system. Childs Nerv Syst 33, 753–758 (2017). https://doi.org/10.1007/s00381-017-3385-2

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  • DOI: https://doi.org/10.1007/s00381-017-3385-2

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