Type:
Educational Exhibit
Keywords:
Veins / Vena cava, Anatomy, Abdomen, CT-Angiography, MR, Ultrasound-Colour Doppler, Contrast agent-intravenous, Embolisation, Shunts, Varices
Authors:
A. Dev1, A. Arora1, Y. Patidar2, A. Mukund1, S. T. Laroia1, S. K. Sarin1; 1New Delhi/IN, 2Madhya Pradesh/IN
DOI:
10.1594/ecr2013/C-2547
Background
Ultrasound (US),
contrast enhanced computed tomography (CECT) and magnetic resonance imaging (MRI) are equally capable of depicting portal vein anatomy and abnormalities.
Doppler US has added advantages over CT and MRI in providing information about flow pattern,
velocity and direction.
CT scan acquisition parameters:
All CT images were acquired on a 64 slice multi-detector row,
spectral energy CT using a quadriphasic contrast enhanced protocol.
Tube current and voltage of 280 MAs and 120 Kvp were employed.
The entire liver was scanned in preconstrast,
arterial,
portal venous (redistribution) and delayed equilibrium phases.
100 ml non-ionic contrast material was injected using a power injector in an antecubital vein via a 20G cannula.
MRI acquisition parameters:
All MR images were acquired on a GE 3T HD scanner using standard T1-weighted spin echo, T2-weighted spin echo,
T2- Steady state free precession,
single-shot fast spin-echo, opposed phase and diffusion weighted (echo planar) pulse sequences.