How MRI Venography Works?
MRI Venography works by capturing detailed images of the veins using powerful magnetic fields and radio waves. The process begins by the patient lying on an MRI machine’s table. A magnetic field is generated by the machine, which aligns the hydrogen atoms in the body, primarily in water molecules. When the radio waves are turned on, the hydrogen atoms release energy, which is then captured by the MRI machine and turned into images of the venous structures.
In most cases, MRI Venography can be performed without a contrast agent, but in certain cases where more detail is needed, a contrast dye may be injected into the bloodstream. This helps to make the veins more visible on the images, improving the detection of blood clots, blockages, or other abnormalities.
Advantages of MRI Venography
1] Non-invasive: Unlike traditional venography, which requires the insertion of a catheter and contrast dye into the veins, MRI Venography is non-invasive, making it safer for patients.
2] Detailed Imaging: MRI Scan provides high-resolution, three-dimensional images of the veins, allowing for a more detailed assessment of blood flow, clotting, and venous structure.
3] No Radiation: MRI Venography does not use ionizing radiation, unlike X-rays or
CT scans, making it a safer option for patients who require repeated imaging or who are sensitive to radiation.
4] Comprehensive View: MR Venography provides a complete view of the veins, including those in difficult-to-reach areas, such as the brain and deep veins in the abdomen or pelvis.
5] Safe for Most Patients: MRI Venography is safe for most individuals, including those with a history of allergies to contrast agents, as the use of contrast is often not necessary, or can be safely administered with alternatives.