Introduction MRI sequences are the setting of pulse sequences that give a particular image appearance. The contrast differentiation is very necessary for MRI images to differentiate normal anatomy from pathology. There are many different MRI sequences that make effective contrast differentiation between the tissues, which includes- PD-Weighted Imaging It is used to differentiate anatomical structures based on their proton density. Proton density imaging is commonly used for brain imaging. The proton density (PD) weighted image is related to the number of protons (H nuclei) per volume. Therefore Tissues with the higher density of protons produce the strongest signals and appear brighter on the image. PD clearly distinguishes between gray and white matter, joint fluid, CSF muscle, etc. For PD images, Long TR/Short TE is used to minimize Ti and T2 effects. T1-Weighted Imaging - It is the basic pulse sequence. It demonstrates differences in the T1 relaxation ti...
Interventional Radiology in California: A Simple Guide Introduction Interventional Radiology (IR) is a modern medical treatment. It helps doctors treat many diseases without big surgery. In Interventional Radiology, doctors use special medical imaging like X-ray, Ultrasound, CT Scan, and MRI to see inside the body. They use very small needles and thin tubes called catheters to treat the problem. Many hospitals in California use Interventional Radiology because it is safe, fast, and gives good results. What is Interventional Radiology? Interventional Radiology is a medical specialty. It helps doctors treat diseases using medical images. Doctors do not need a large cut on the body. They make only a very small opening in the skin. This means the patient has: - Less pain - Less bleeding - Small scars - Faster healing - Short hospital stay How Does It Work? The doctor first looks at medical images. These images show the exact problem inside the body. Then the doctor carefully moves a s...