DOPPLER WAVEFORM INDICES OF FETAL MIDDLE CEREBRAL ARTERY IN NORMAL 20 TO 40 WEEKS PREGNANCIES

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TARZAMANI M.K.; NEZAMI N.; GATREH SAMANI F.; VAHEDINIA S.; TARZAMNI M.

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Journal: ARCHIVES OF IRANIAN MEDICINE Year:2009 | Volume:12 | Issue:1 Page(s): 29-34

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Title

DOPPLER WAVEFORM INDICES OF FETAL MIDDLE CEREBRAL ARTERY IN NORMAL 20 TO 40 WEEKS PREGNANCIES

Author(s)

Keywords

DOPPLER ULTRASONOGRAPHY

FETUS

MIDDLE CEREBRAL ARTERY

PREGNANCY

Abstract

Background: One of the main methods for evaluation of fetal well-being is analysis of Doppler flow velocity waveform of fetal vessels. Evaluation of Doppler wave of the MIDDLE CEREBRAL ARTERY can predict most of the at-risk FETUSes in high-risk pregnancies. In this study, we tried to determine the normal ranges and their trends during PREGNANCY of Doppler flow velocity indices (resistive index, pulsatility index, systolic-to-diastolic ratio, and peak systolic velocity) of MIDDLE CEREBRAL ARTERY in 20 – 40 weeks normal pregnancies in Iranians.Methods: In this cross-sectional study, 1037 women with normal PREGNANCY and gestational age of 20 to 40 weeks were investigated for fetal MIDDLE CEREBRAL ARTERY Doppler examination. Results: Resistive index, pulsatility index, and systolic-to-diastolic ratio values of MIDDLE CEREBRAL ARTERY decreased in a parabolic pattern while the peak systolic velocity value increased linearly with progression of the gestational age. These changes were statistically significant (P<0.001 for all four variables) and were more characteristic during late weeks of PREGNANCY. The mean fetal heart rate was also significantly (P<0.001) reduced in correlation with the gestational age.Conclusion: Doppler waveform indices of fetal MIDDLE CEREBRAL ARTERY are useful means for determining fetal well-being. Herewith, the normal ranges of Doppler waveform indices for an Iranian population are presented.

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APA: Copy

TARZAMANI, M.K., NEZAMI, N., GATREH SAMANI, F., VAHEDINIA, S., & TARZAMNI, M.. (2009). DOPPLER WAVEFORM INDICES OF FETAL MIDDLE CEREBRAL ARTERY IN NORMAL 20 TO 40 WEEKS PREGNANCIES. ARCHIVES OF IRANIAN MEDICINE, 12(1), 29-34. SID. https://sid.ir/paper/280376/en

Vancouver: Copy

TARZAMANI M.K., NEZAMI N., GATREH SAMANI F., VAHEDINIA S., TARZAMNI M.. DOPPLER WAVEFORM INDICES OF FETAL MIDDLE CEREBRAL ARTERY IN NORMAL 20 TO 40 WEEKS PREGNANCIES. ARCHIVES OF IRANIAN MEDICINE[Internet]. 2009;12(1):29-34. Available from: https://sid.ir/paper/280376/en

IEEE: Copy

M.K. TARZAMANI, N. NEZAMI, F. GATREH SAMANI, S. VAHEDINIA, and M. TARZAMNI, “DOPPLER WAVEFORM INDICES OF FETAL MIDDLE CEREBRAL ARTERY IN NORMAL 20 TO 40 WEEKS PREGNANCIES,” ARCHIVES OF IRANIAN MEDICINE, vol. 12, no. 1, pp. 29–34, 2009, [Online]. Available: https://sid.ir/paper/280376/en

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