Low-field MRI technique study of children′s developing brain
- VernacularTitle:小儿脑发育的低场强磁共振成像技术研究
- Author:
Xiaoming WANG
;
Liying CHEN
;
Qiyong GUO
- Publication Type:Journal Article
- Keywords:
Child;
Brain;
Magnetic resonance imaging
- From:
Chinese Journal of Radiology
1994;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate suitable scan sequence of Low Field (0 35 T) MRI for children′s brain in development phase Methods The T 2 values of gray and white matter of centrum semiovale were measured The change of the T 2 value with the age was observed Three types of long TR scan sequence were performed These were routine TR, i e 2 700/40, 80 ms, long TR, i e 4 000/40, 80 ms, and extra long TR, i e 5 000～8 000/40, 80 ms They were applied to children of different age group And the quality of T 2WI was compared and analyzed Results The change of T 2 value was consistent with the process of myelinization Extra long TR sequence should be chosen for newborns Long TR sequence should be chosen for infants And routine TR sequence may be used in children older than one year old Conclusion In observing cerebral ventricle and extracerebral space of newborn and infant, image of long TR sequence is better than that of routine TR sequence
