2023年2月15日 · MR cerebral venography (MRV) is an MRI examination of the head with either contrast-enhanced or non-contrast sequences to assess patency of the dural venous sinuses and cerebral veins. NB: This article is intended to outline some general principles of protocol design.

MRV stands for magnetic resonance venography. MRV is used to assess abnormalities in venous drainage of the brain. Two-dimensional (2D) time-of-flight (TOF) MR venography (MRV) and three-dimensional (3D) phase-contrast (PC) are the techniques commonly used to assess the cerebral venous sinuses because they are easy to perform and do not require ...

2023年4月22日 · Magnetic resonance venography (MRV) is an imaging test that is used to visualize veins in the body. Veins are the blood vessels that bring blood from your body's organs back to your heart and lungs so the blood can be replenished with oxygen and nutrients.

Your doc­tor may have recent­ly ordered an MRI, MRA and MRV scan of your head, but your head is spin­ning with what all these acronyms mean. Each type of mag­net­ic field imag­ing test serves a spe­cif­ic pur­pose.

2022年9月26日 · Multiple single slice acquisition. A number of slices are scanned in sequential order. Charge as: MRV WO or MRV WWO. If ordered as MRA/MRV, you may only charge for EITHER the MRV or the MRA. Never both.

Magnetic resonance imaging (MRI), magnetic resonance angiography (MRA), and magnetic resonance venography (MRV) are specialized examinations that use a magnetic field, radio waves, and a computer to create detailed, cross-sectional images of the head. MRA and MRV exams are specifically designed to examine the blood vessels.

2024年9月30日 · Unveiling the intricate tapestry of cerebral blood flow, MRV brain imaging emerges as a revolutionary diagnostic tool that illuminates the brain’s vascular labyrinth with unparalleled precision.

2000年1月1日 · BACKGROUND AND PURPOSE: MR venography is often used to examine the intracranial venous system, particularly in the evaluation of dural sinus thrombosis.

TECHNIQUE: MR venogram was performed without intravenous contrast at 1.5 Tesla using time-of-flight technique. 3-D/MIPS reformatted images of the venogram were obtained. There is a decreased signal centrally within the majority of the dural venous sinus system and involving the visible jugular veins, favored to represent flow related artifact.

In the last few decades, the MRI venography (MRV) field has developed a number of valuable sequences to better investigate structural anatomy, vessel patency, and flow characteristics of venous drainage in the intra- and extracranial systems.