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Easyvision 5

Manufactured by Philips

EasyVision 5.1 is a laboratory equipment product from Philips. It is designed to capture and process visual data. The core function of EasyVision 5.1 is to provide a platform for image acquisition and analysis.

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Lab products found in correlation

2 protocols using easyvision 5

1

Cardiac MRI Protocol for Framingham Heart Study

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The Framingham Heart Study cardiac MRI protocol has been reported elsewhere.2 (link),10 (link),11 (link) Briefly, supine imaging was performed on a Philips 1.5T scanner with a 5-element commercial cardiac array coil. End-expiratory breath-hold, ECG-gated cine steady state free precession images were acquired in 2-chamber, 4-chamber, and contiguous short axis orientations (temporal resolution, 39ms; repetition time, R-R interval; echo time, 9ms; flip angle, 30°; field of view, 400mm; matrix size, 208x256; slice thickness, 10mm; gap, 0mm). Analyses were performed by an experienced reviewer blinded to clinical information using a clinical workstation (EasyVision 5.1, Philips Medical Systems). End-diastolic volume (EDV) was determined as the minimal cross-sectional area of a midventricular slice. EDV and end-systolic volume (ESV) were computed by summation-of-disks method with cardiac output (L/min) calculated as (EDV-ESV) x heart rate. Cardiac output was divided by body surface area to calculate cardiac index (L/min/m2). Inter-rater reliability correlation coefficient for EDV=0.95 and for ESV=0.92. Intra-observer coefficient of variation for EDV=2.6% and for ESV=3.5%.12 (link) Inter-observer coefficient of variation for EDV=3.5% and ESV=4.8%.12 (link)
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2

Pulmonary Vein Dimensions and Cardiac Anatomy

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All measurements were made by an observer blinded to the clinical treatment data using commercially available system software (EasyVision 5.1, Philips Medical Systems, Best, The Netherlands). The maximum left atrial dimension was measured in the 4-chamber orientation. Left ventricular volumes, mass and ejection fraction were determined using Simpson’s rule [10 (link)]. The PV were measured at the location in the sagittal plane at which the PV separate from the left atrium and from each other identified by viewing a sagittal plane reconstruction of the dataset [11 (link)]. The maximal diameter and cross-sectional area (CSA) of each PV were measured. A left common PV was defined as a single left-sided PV entering the left atrium as determined in the sagittal plane. A right middle PV was defined as any right-sided pulmonary vein identified in the sagittal plane in addition to the right inferior and right superior PV.
Any PV with a diameter in the top 10th percentile of all PV was defined as having a large diameter. Similarly, any PV with a CSA in the top 10th percentile was defined as having a large CSA. A separate analysis was performed for each measure of PV size.
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