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Vivid 7 ultrasound scanner

Manufactured by GE Healthcare
Sourced in Norway, United States

The Vivid 7 is an ultrasound scanner developed by GE Healthcare. It is a diagnostic medical imaging device that uses high-frequency sound waves to create images of structures inside the body.

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5 protocols using vivid 7 ultrasound scanner

1

Carotid Ultrasound Protocol for Intima-Media Thickness

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A two-dimensional greyscale (B-mode) ultrasonography of the carotid arteries was performed with a Vivid-7 ultrasound scanner (General Electric Vingmed Ultrasound, Norway) using a 12 MHz linear matrix array transducer. The ultrasonography examinations were performed by one experienced sonographer in accordance with recommendations.19 (link) The carotid-intima media thickness (c-IMT) and plaque measurements were as previously described read off-line by two independent readers blinded to patient clinical information.20 (link) c-IMT was measured in both the left and right common carotid arteries, and a mean c-IMT was calculated. Our laboratory has previously reported an intraclass correlation coefficient of 0.985 (95% CI 0.975 to 0.991) on c-IMT measurements.20 (link) Plaques were identified in the longitudinal view as protrusions >1.5 mm into the lumen when both the far and near walls had sharp edges, or when the protrusion was >
2 times the nearby corresponding c-IMT, according to recommendations.21 (link)
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2

Comprehensive Assessment of Cardiometabolic Markers

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The blood concentration of HbA1C was determined using a turbidimetric immunoinhibition method. The concentrations of triglycerides (TG), total cholesterol, high-density and low-density lipoprotein cholesterol fractions (HDL, LDL) were assessed by standard enzymatic-colorimetric methods. The laboratory tests were conducted at baseline and at week 12 using the Roche device and Cobas Integra Reagents (Roche Diagnostics, Warszawa, Poland). Participants’ blood pressure and the cardiac hemodynamic parameters (the left ventricular ejection fraction (LVEF) and the left ventricular end-systolic and end-diastolic dimensions (LVEDD, LVESD)) were measured by one- and two-dimensional echocardiography with the Vivid 7 ultrasound scanner (General Electric, Waukesha, WI, USA). Average daily systolic and diastolic blood pressures (BPs, BPd) were calculated after 24-h ambulatory blood pressure monitoring (24-h ABPM) with the Boso Tm 2430 device (Bosch and Sohn, Jungingen, Germany).
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3

Fetal Growth Restriction Doppler Evaluation

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All pregnancies complicated by FGR underwent complete fetal sonographic assessment of both anatomy and Doppler evaluation as part of the study protocol on the same day as the MRI study using a LOGIQ E9 ultrasound scanner (GE Healthcare, WI). Abdominal circumference, head circumference, femur length and estimated fetal weight were measured and plotted according to GA [11 (link)]. Fetal middle cerebral (MCA) and umbilical arterial (UA) flow velocities were measured using a pulse-wave Doppler, and pulsatility indices (PI) were calculated. The cerebroplacental ratio (CPR) was calculated by dividing the middle cerebral artery pulsatility index by the umbilical artery pulsatility index [20 (link)]. Subjects were classified into the sub-group of abnormal Doppler studies if the UA PI was > 95 centile for gestational age and/or the CPR was less than 1 [21 (link)]. All sonographic studies were reviewed by a single attending radiologist (D.B.).
Healthy control pregnancies underwent complete fetal echocardiographic assessment using a Vivid 7 ultrasound scanner (GE Healthcare, Waukesha, WI) as part of an adjunct prospective study. Fetal middle cerebral and umbilical arterial flow velocities were measured using a pulse-wave Doppler; pulsatility indices, CPR and z-scores (derived from normal references) were calculated [21 (link)].
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4

Fetal Growth Restriction Doppler Evaluation

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All pregnancies complicated by FGR underwent complete fetal sonographic assessment of both anatomy and Doppler evaluation as part of the study protocol on the same day as the MRI study using a LOGIQ E9 ultrasound scanner (GE Healthcare, WI). Abdominal circumference, head circumference, femur length and estimated fetal weight were measured and plotted according to GA [11 (link)]. Fetal middle cerebral (MCA) and umbilical arterial (UA) flow velocities were measured using a pulse-wave Doppler, and pulsatility indices (PI) were calculated. The cerebroplacental ratio (CPR) was calculated by dividing the middle cerebral artery pulsatility index by the umbilical artery pulsatility index [20 (link)]. Subjects were classified into the sub-group of abnormal Doppler studies if the UA PI was > 95 centile for gestational age and/or the CPR was less than 1 [21 (link)]. All sonographic studies were reviewed by a single attending radiologist (D.B.).
Healthy control pregnancies underwent complete fetal echocardiographic assessment using a Vivid 7 ultrasound scanner (GE Healthcare, Waukesha, WI) as part of an adjunct prospective study. Fetal middle cerebral and umbilical arterial flow velocities were measured using a pulse-wave Doppler; pulsatility indices, CPR and z-scores (derived from normal references) were calculated [21 (link)].
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5

Fetal Growth Restriction Doppler Assessment

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All pregnancies complicated by FGR underwent complete fetal sonographic assessment of both anatomy and Doppler evaluation as part of the study protocol on the same day as the MRI study using a LOGIQ E9 ultrasound scanner (GE Healthcare, WI). Abdominal circumference, head circumference, femur length and estimated fetal weight were measured and plotted according to gestational age GA (15 (link)). Fetal middle cerebral (MCA) and umbilical arterial (UA) flow velocities were measured using a pulse-wave Doppler, and pulsatility indices (PI) were calculated. The cerebroplacental ratio (CPR) was calculated by dividing the middle cerebral artery pulsatility index by the umbilical artery pulsatility index (27 (link)). Subjects were classified into the sub-group of abnormal Doppler studies if the CPR was less than 1 (28 (link)). All sonographic studies were reviewed by a single attending radiologist as per institutional protocol.
Healthy control pregnancies underwent complete fetal echocardiographic assessment using a Vivid 7 ultrasound scanner (GE Healthcare, Waukesha, WI) as part of an adjunct prospective study. Fetal middle cerebral and umbilical arterial flow velocities were measured using a pulse-wave Doppler; pulsatility indices, CPR and z-scores (derived from normal references) were calculated (28 (link)).
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