Umit Aksoy Ozcan MD, Presenter: Nothing to Disclose

Atilla Damlacik MD, Abstract Co-Author: Nothing to Disclose

M. Olcay Cizmeli MD, Abstract Co-Author: Nothing to Disclose

To compare the efficiacy of HASTE and TrueFISP sequences in evaluating fetal central nervous system (CNS) abnormalities in second and third trimesters.

Fetal MRI of 67 fetuses (mean gestational age 25 weeks) were obtained with HASTE, and true FISP sequences in a 1.5T MR unit in the same orthogonal planes without sedation. In addition to CNS abnormalities, cortical maturation markers were also evaluated in both sequences. The performances of sequences were noted by two radiologists who were blinded to the parameters and the diagnosis of the fetuses.

Of the 67 fetuses 42 had CNS abnormalities. In 60(89%) of the cases both sequences had equal performances. In 4 cases image quality of HASTE was superior whereas in 3 cases trueFISP sequence performed better, but the image qualities did not affect the diagnosis. No significant superiority of either sequence could be demonstrated.

Both HASTE and true FISP sequences provide comparable image qualities in the evaluation of CNS. We conclude that either of the sequences may be sufficient in the assessment of fetal CNS abnormalities in clinical setting. Additional sequence can be added only if the provided sequence does not give enough information.

In the evaluation of fetal CNS, HASTE or true FISP sequences may provide sufficient information. Additional sequences can be added only if the provided sequence does not provide enough information.

Ozcan, U, Damlacik, A, Cizmeli, M, Fetal Central Nervous System MRI: Evaluation with HASTE and TrueFISP Sequences.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/5008703.html