DOI: 10.5061/dryad.j0zpc86kg
title: Plane wave ultrasound and OCT angiography of the eye in preeclampsia

description: This study involves examination of ocular blood flow in human subjects in
 preeclampsia (PE). Both eyes were examined by plane-wave ultrasound and by
 optical coherence angiography (OCTA) within 72 hours of
 delivery.  Ultrasound Doppler was used to assess flow velocity
 and resistance in the central retinal artery and vein, the short posterior
 ciliary arteries and the choroid.  OCTA was used to assess
 vascular density in the superficial and deep retina and the
 choriocapillaris.  Analysis included correlation with blood
 pressure, assessment of differences between normal and PE and correlation
 of ultrasound Doppler with OCTA vascular density.
description: After informed consent, patients were examined at the Harkness
 Eye Institute within approximately  72 hours of delivery. Ultrasound and
 OCTA were collected within an hour of each other.
description: These files can be read using IBM SPSS. Variables are as follows: * ID:
 (random number) * Race: (0=white, 1=black, 2=hispanic, 3=asian, 4=other) *
 TimeFromDelivery: Hours * DIAG: 0= control, 1=mild PE, 2= severe PE, 3=
 hypertension * Systolic: BP * Diastolic: BP * MAP: Mean arterial BP *
 HRate: BPM at time of BP measurement * BPM: at time of exam * Eye:
 0=right, 1=left * ChVmax: choroidal systolic mm/sec * ChVmin: diastolic *
 ChVmean: mean velocity * ChRi: resistive index * ChPI: pulsatility index *
 CRAVmax: central retinal artery systolic velocity * CRAVmin: diastolic *
 CRAVmean: mean velocity * CRARI: resistive index * CRAPI: pulsatile index
 * CRVVmax: central retinal vein systolic velocity * CRVVmin: Diastolic *
 CRVVmean: mean velocity * CRVRI: resistive index * CRVPI: pulsatility
 index * vd\_mac\_ST: vascular density superotemporal to macular *
 vd\_mac\_SN: superonasal * vd\_mac\_IT: inferotemporal * vd\_mac\_IN:
 inferonasal * vd\_mac: mean * vd\_onh\_ST: vascular density superotemporal
 to optic nerve * vd\_onh\_SN: superonasal * vd\_onh\_IT: inferotemporal *
 vd\_onh\_IN: inferonasal * vd\_onh: in optic nerve region * scale\_mm:
 scan width, height in mm * FAZ\_cnt: foveal avascular zone pixels *
 FAZ\_mm2: mm2 * Thick: choroidal thickness * vd\_chorio\_auto:
 automatically determine vascular density from choriocapillaris *
 vd\_chorio\_man: manually determined * vd\_deep\_ST: Deep retina
 superotemporal * vd\_deep\_SN: superonasal * vd\_deep\_IT: inferotemporal
 * vd\_deep\_IN: inferonasal * vd\_deep: deep mean * CentRetThick: central
 retinal thickness * ChoroidThick: choroidal thickness * NasRetThick: nasal
 retinal thickness * TempRetThick: temporal retinal thickness *
 VD.5\_chorio: vascular density choriocapillaris 1 mm diam around macula *
 FLOW.5\_chorio: flow * VD.5\_deep: deep retina vascular density *
 FLOW.5\_deep: flow * VS.5\_sup: superficial retina * FLOW.5\_sup: flow *
 FAV3x3: avacular zone from 3x3 image * FAV3x3mm2: mm2 * VDchor: choroid VD
 * FlowChor: flow * VDdeep: deep retina VD * FlowDeep: flow * VDsup:
 superficial retina * FlowSup: flow * FAZ3x3: * FAZ3x3mm2 *
 VDsup\_corrected Missing values are represented by an '.' which
 is the standard in SPSS. Data may be missing for several reasons,
 including: exam not performed, poor quality or ambiguous data, or in the
 case of Doppler, a particular vessel was not visualized.