Effects of diffuse fatty infiltration of the liver on portal vein flow hemodynamics
Yükleniyor...
Tarih
2008
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Purpose. To investigate the effects of various degrees of diffuse fatty infiltration of the liver on portal vein blood flow with Doppler sonography. Methods. One hundred forty subjects were examined with color and spectral Doppler sonography. The subjects were divided into 4 groups of 35 subjects each according to the degree (normal, grade 1, grade 2 and grade 3) of hepatic fatty infiltration assessed on gray-scale images. The portal vein pulsatility index (VPI) and time-averaged mean flow velocity (MFV) were calculated for each subject. VPI was calculated as (peak maximum velocity - peak minimum velocity) peak maximum velocity. Results. VPI and MFV values were, respectively, 0.32 +/- 0.06 and 16.8 +/- 2.6 cm/second in the normal group, 0.27 +/- 0.07 and 14.2 +/- 2.2 cm/second in the group with grade 1 fatty infiltration, 0.22 +/- 0.06 and 12.2 +/- 1.8 cm/second in the group with grade 2 fatty infiltration, and 0.18 +/- 0.04 and 10.8 +/- 1.5 cm/second in the group with grade 3 fatty infiltration. There was a negative inverse correlation between the grade of fatty infiltration and both VPI (f = 55.3, p < 0.001) and MFV (f = 43.9, p < 0.001). Conclusion. The pulsatility index and mean velocity of the portal vein blood flow decrease as the severity of fatty infiltration increases. (C) 2008 Wiley Periodicals, Inc.
Açıklama
Anahtar Kelimeler
portal vein flow pulsatility, liver, Doppler sonography, fatty infiltration, hepatic steatosis
Kaynak
Journal of Clinical Ultrasound
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
36
Sayı
3
