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hypertension Pulsatility index Re-nal artery Renal blood flow Repeatability. The measurement of effective renalplasma flow (ERPF) by calculation of 

Outliers not plotted Figure 6 Umbilical artery pulsatility index (PI) in fetuses with trisomy 21 plotted on the normal range (mean (a) Serial measurements of pulsatility index (PI) in the middle cerebral artery (MCA) in a fetus under surveillance for intrauterine growth restriction (), conditional mean and reference interval (5 th and 95 th percentiles) calculated from the first measurement and unconditional 5 th, 50 th and 95 th percentiles (). One of the disadvantages of indices derived from ultrasonic Doppler signals is that they are not normally available instantaneously. In an attempt to overcome this problem, a real-time spectrum analyser has been interfaced to an Intel 8085 microprocessor system and programmed to calculate pulsatility index in real time. Median uterine artery pulsatility index multiples of the median (MoM) (with 95% CIs) derived from the model, according to racial origin, chronic hypertension, diabetes mellitus, method of conception and smoking in pregnancies that were unaffected by pre‐eclampsia (PE) (black values) and those that developed PE (red values). DOI: 10.1007/BF02443843 Corpus ID: 6052952.

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Median uterine artery pulsatility index multiples of the median (MoM) (with 95% CIs) derived from the model, according to racial origin, chronic hypertension, diabetes mellitus, method of conception and smoking in pregnancies that were unaffected by pre‐eclampsia (PE) (black values) and those that developed PE (red values). DOI: 10.1007/BF02443843 Corpus ID: 6052952. Real-time calculation of ultrasonic pulsatility index @article{Gibbons2006RealtimeCO, title={Real-time calculation of ultrasonic pulsatility index}, author={D. T. Gibbons and D. Evans and W. Barrie and P. Cosgriff}, journal={Medical and Biological Engineering and Computing}, year={2006}, volume={19}, pages={28-34} } PaPi was calculated as [ (systolic pulmonary artery pressure-diastolic pulmonary artery pressure)/right atrial (RA) pressure]. Univariate analysis was performed to identify baseline predictors of RVF. Multivariate logistic regression was used to adjust for baseline RA pressure. Trans-cranial Doppler (TCD) pulsatility index (PI) has emerged as a surrogate marker for ICP. [4] For the most part, it is currently used as a snapshot screening tool, mainly because it is cumbersome to utilize in a continuous monitoring fashion and second because there is a lack of consensus as to the accuracy and applicability in the therapeutic decision making. Pulsatility index in atherosclerosis and arterial stenosis Several studies report a relationship between pul-satility and atherosclerotic disease.

The predictability of uterine artery mean pulsatility index (PI) at 11–14 weeks for hypertensive disorders of pregnancy was significantly high with an odds ratio of 174.45 (95% CI 65.31–549.13; p < 0.0001), sensitivity (89.3%), specificity (95.8%), positive predictive value(90.5%) and negative predictive value (95.1%). Conclusion

Neurosurgery . 2010;66(6):1050–1057.

Flow measurement does not use a sensor or flow probe (calculated value) The Pulsatility Index (PI) is a measurement of the flow pulse through the pump.

Pulmonary Artery Pulsatility index (PAPi) Calculator Pulmonary artery pulsatility index (PAPi) = (PA systolic - PA diastolic) / RA mean Pulmonary Artery Systolic Pressure (PAsystolic) The pulsatility index is calculated by the following formula: Systolic Velocity − Diastolic Velocity Mean Velocity The resistance index is calculated by the following formula: 2020-01-02 · Pulmonary artery pulsatility index (PAPi) = (systolic pulmonary arterial pressure − diastolic pulmonary pressure)/right atrial pressure.

It is an index easy to calculate, less influenced by the correct angle of insonation, and is more accurate in expressing the combination of many factors affecting the cerebral blood flow. Results The predictability of uterine artery mean pulsatility index (PI) at 11–14 weeks for hypertensive disorders of pregnancy was significantly high with an odds ratio of 174.45 (95% CI 65.31–549.13; p < 0.0001), sensitivity (89.3%), specificity (95.8%), positive predictive value (90.5%) and negative predictive value (95.1%). the lesion and for calculation of Resistive index (RI) and Pulsatility index (PI) Doppler ultrasound was performed .Operative findings were recorded. Post operative histopathological findings were considered as gold standard for characterization of benign or malignant ovarian masses.
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Pulmonary artery pulsatility index (PAPi) = (PA systolic - PA diastolic) / RA mean. Pulmonary Artery Systolic  22 Jun 2010 On each level, the pulsatility index (PI) in the middle cerebral artery RESULTS: The ICP-PI regression equation was based on data from 8  index (PI) and resistive index (RI) of left and right MCAs of fetuses suspected to low MCA PI (pulsatility index) on Doppler Gestational age was calculated by.

Each radiologist obtained measurements 10 times from a freely chosen wave form of 10 wave forms (10-beat series) and then a further set of measure- An increased value of the resistive index (RI = [peak systolic velocity - end diastolic velocity]/peak systolic velocity) or the pulsatility index (PI = [peak systolic velocity - end diastolic velocity]/time averaged … Resistive index (RI) and Pulsatility index (PI) calculation by Doppler examination of the ovarian lesions is established as an essential part of modern multidisciplinary approach to effective investigation and management of ovarian disease .Resistive index (RI) is an Trans-cranial Doppler (TCD) pulsatility index (PI) has emerged as a surrogate marker for ICP. [4] For the most part, it is currently used as a snapshot screening tool, mainly because it is cumbersome to utilize in a continuous monitoring fashion and second because there is a lack of consensus as to the accuracy and applicability in the therapeutic decision making.
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