E2365. Role of Colour Doppler in Venous Hypertension
Lohia Institute of Medical Sciences
1. To know the spectrum of colour Doppler sonographic findings in portal hypertension.
2. To study flow metric changes in portal hypertension.
3. To look for presence of various porto-systemic collaterals.
Materials and Methods:
Study location :
The main source of data for the study are patients from the following teaching hospital of Ahmednagar
Study population :
All patients referred to the Department of Radiodiagnosis with the clinically diagnosed cases of portal hypertension, in a period of 1 year from June 2015 to June 2016 were subjected for the study.
40 cases of portal hypertension were studied.
Study design : Cross sectional study
Inclusion Criteria :
? All cases with clinical diagnosis of portal hypertension
? Adult cases (cases in the age group of 20-65).
Exclusion criteria :
? Paediatric age group cases.
? Pregnant cases.
? Traumatic cases.
Tools used :
All patients included in the study underwent ultrasonography of abdomen using a curvilinear and a sector probe of 3.5 - 5.0 MH2 coupled with colour Doppler equipment.
Portal hypertension is one of the serious and debilitating condition. It results from various causes, but cirrhosis being most frequent of all. It leads to various haemodynamic alterations in body especially abdomen.
Colour Doppler ultrasonography being non invasive reliable and widely available, is initial tool for evaluation and diagnosis of portal hypertension, finding out etiologic and looking for its complications.
In our study, we studied 40 patients, who were clinically diagnosed as portal hypertensive and confirmed on ultrasound and Doppler study. Various findings, their percentage of detection were studied.
Colour Doppler is best non invasive test to assess portal hypertension to diagnose and to find out etiology.
? Dilated portal vein was seen in 55% of cases and was more frequent.
? Most frequent flow type in veins was hepatopetal 60% of PV flow, 75% of SPLV and 85% of SMV showed hepatopetal flow.
? Hepatofugal flow was seen in 10%, 7.5%, 9.5% cases in PV, SPLV and SMV respectively.
? Bidirectional flow was least frequent and was seen in 2.5% of cases in all veins.
? Absent flow seen in 25% of PV, 15% SPLV and 10% SMV due to thrombosed veins.
? Thrombosis of veins was more frequent in portal vein (30%) where as least frequent in SMV (15%). SPLV showed 22.5% thrombosis.
40 cases of portal hypertension were studied using colour Doppler ultrasonography. Various parameters of portal hypertension were observed spectrum of sonographic and colour doppler findings, flow metric changes and collateral, were assessed.
? Portal vein diameter >13 mm was seen in 55% of cases. Though portal hypertension has PV diameter >13 mm, its not seen in all cases.
? Variation of portal vein diameter less than 20% with deep inspiration was seen in 85% cases which correlated well with studies previously done.
? Splenomegaly and ascites are most of time associated with portal hypertension. It was seen in 87.5% and 77.5% cases respectively.