Assessment of vasogenic edema in eclampsia using diffusion imaging.
We qualitatively assessed the regional distribution of vasogenic edema in a case of postpartum eclampsia. Although diffusion-weighted imaging showed no abnormalities, bilateral high signal was seen on T2-weighted images and apparent diffusion coefficient (ADC) maps. ADC of 1.45 +/- 0.10 mm2/s x 10(-3) for the posterior cerebral artery (PCA) territory and 1.22 +/- 0.12 mm2/s x 10(-3) for the watershed areas were significantly higher than those in the territories of the anterior (0.85 +/- 0.07 mm2/s x 10(-3) and middle cerebral (0.79 +/- 0.06 mm2/s x 10(-3)) arteries (P < 0.05). The predilection of ADC changes within the PCA territory and in a previously undescribed watershed distribution supports the hypothesis that vasogenic edema in eclampsia is due to hypertension-induced failure of vascular autoregulation.
Duke Scholars
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Related Subject Headings
- Pregnancy
- Posterior Cerebral Artery
- Nuclear Medicine & Medical Imaging
- Magnetic Resonance Imaging
- Hypertension
- Humans
- Female
- Eclampsia
- Brain Edema
- Adult
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Pregnancy
- Posterior Cerebral Artery
- Nuclear Medicine & Medical Imaging
- Magnetic Resonance Imaging
- Hypertension
- Humans
- Female
- Eclampsia
- Brain Edema
- Adult