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Year : 2015  |  Volume : 2  |  Issue : 1  |  Page : 33-38

Determination of normal portal vein parameters on triplex ultrasound scan among adults in Zaria, Nigeria

1 Department of Radiology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
2 Department of Chemical Pathology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria

Correspondence Address:
Philip Oluleke Ibinaiye
Department of Radiology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2384-5147.150469

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Background: There are many causes of the portal vein (PV) disease and these include portal hypertension (PHT), PV thrombosis, PV gas and PV stenosis/obstruction. PHT is a common clinical presentation of portal venous disease with multiple causes and several sequelae. There is a need for an imaging parameter that will aid early diagnosis of PHT since portal pressure monitoring devices are not available in most tertiary hospitals in Nigeria. Aims and Objectives: To determine the normal values of PV parameters using triplex ultrasound (US) among adults in Zaria, Nigeria. Settings and Design: This prospective study was conducted over a period of 6 months between November 2011 and May 2012 at the Radiology Department of Ahmadu Bello University Teaching Hospital, Zaria. Materials and Methods: Following an overnight fast, US scan was performed on 186 eligible participants. The diameter, cross-sectional area (CSA) and flow velocity of the PV were obtained. Results: The PV parameters obtained were as follows (mean ± standard deviation): PV diameter, 1.09 ± 0.22 cm (range: 0.87-1.31); CSA, 1.10 ± 0.203 cm 2 (range: 0.89-1.30) and mean flow velocity, 15.44 ± 2.63 cm/s (range: 12.80-18.10). All the measurements in males were significantly higher than those in females (P < 0.001). Conclusion: The normal values of PV parameters have been established in adult subjects in Zaria. These values will serve as a reference to detect abnormalities of dimensions and flow velocities in the PV, thus enabling quantitative evaluation of patients with suspected PV disease.

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