Cerebral hyperperfusion after carotid stenting: a transcranial doppler and SPECT study.

Aim: To document the incidence of symptomatic cerebral hyperperfusion after carotid stenting and to determine possible predisposing factors.

Methods: A prospective study of 29 consecutive patients undergoing carotid stenting. All patients underwent 1) brain computed tomography scan and magnetic resonance imaging, 2) transcranial Doppler including assessment of cerebrovascular reactivity of the ipsilateral middle cerebral artery and 3) 99m hexamethyl-propyleneamine oxime brain single photon emission computed tomography, before and after the procedure.

Sonographic assessment of uterine and ovarian development in normal girls aged 1 to 12 years.

Purpose: To provide normal references of sonographic uterine and ovarian size in girls aged 1-12 years.

Method: Ninety-nine girls were enrolled in the study (mean age +/- SD, 6.9 +/- 2.