<unk>  Image acquired at 4 Tesla showing the veins in the brain.<unk>  <unk> , originally called BOLD venographic imaging, is an MRI sequence that is exquisitely sensitive to venous blood, hemorrhage and iron storage.<unk>  uses a fully flow compensated, long echo, gradient recalled echo (GRE) pulse sequence to acquire images. This method exploits the<unk>  differences between tissues and uses the phase image to detect these differences. The magnitude and phase data are combined to produce an enhanced contrast magnitude image. The imaging of venous blood with<unk>  is a blood-oxygen-level dependent (BOLD) technique which is why it was (and is sometimes still) referred to as BOLD venography. Due to its sensitivity to venous blood<unk>  is commonly used in traumatic brain injuries (TBI) and for high resolution brain venographies but has many other clinical applications.<unk>  is offered as a clinical package by Philips and Siemens but can be run on any manufacturer’s machine at field strengths of 1.0 T, 1.5 T, 3.0 T and higher.
Susceptibility weighted imaging
Amplified magnetic resonance imaging
Blood-oxygen-level-dependent imaging
Magnetic resonance spectroscopic imaging
Perfusion MRI
Arterial spin labelling
Disease diffusion mapping
Functional imaging