Abstract #1542
Characterisation of Placental Diffusion in Twin Pregnancies using Diffusion-Weighted Magnetic Resonance Imaging
Soha Said Ramadan 1 , Pablo Caro Dominguez 1,2 , Jorge H. Davila 1,2 , Melissa Valdez Quintana 1,2 , Julie Hurteau-Miller 1,2 , David Grynspan 2,3 , Felipe Moretti 2,4 , and Elka Miller 1,2
1
Department of Radiology, Children's Hospital
of Eastern Ontario, Ottawa, Ontario, Canada,
2
Department
of Diagnostic Imaging, University of Ottawa, Ottawa,
Ontario, Canada,
3
Department of Pathology,
Children's Hospital of Eastern Ontario, Ottawa, Ontario,
Canada,
4
Department
of Obstetrics, Gynecology and Newborn Care, The Ottawa
Hospital, Ottawa, Ontario, Canada
INTRODUCTION: Most fetal DWI studies investigate
singletons or rare twin-related diseases. This
retrospective study investigates twin placental
diffusion. METHODS: Two ADC-quantification methods were
evaluated. Diffusion was compared within twins with
double-disc placentas and between twins and normal
singletons. RESULTS: ADC-quantification methods were
significantly different. No significant diffusion
difference was found within double-disc placental pairs
or between twins and singletons with GA≤24 weeks.
Comparison for GA>24 weeks could not be performed due to
data paucity. DISCUSSION: Quantification discrepancy
suggests non-uniform placental diffusion. Results
suggest no twin-placental diffusion difference within
twins or compared to singletons with GA≤24 weeks.
Pathological correlation is required.
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