J 2017

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

BRICHTOVÁ, Eva a Jan ŠENKYŘÍK

Základní údaje

Originální název

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

Autoři

BRICHTOVÁ, Eva (203 Česká republika, garant, domácí) a Jan ŠENKYŘÍK (203 Česká republika, domácí)

Vydání

Childs nervous system, NEW YORK, SPRINGER, 2017, 0256-7040

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30103 Neurosciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.235

Kód RIV

RIV/00216224:14110/17:00097343

Organizační jednotka

Lékařská fakulta

DOI

UT WoS

000403477000007

Klíčová slova anglicky

Rapid magnetic resonance imaging; Susceptibility artifact; TSE sequence; Ventriculoperitoneal drainage; Pediatric patients

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 20. 3. 2018 16:21, Soňa Böhmová

Anotace

V originále

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 ventriculo peritoneal 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.