A T2 hyperintense lesion is a very bright area seen on a magnetic resonance imaging scan using T2-weighting. A lesion is any abnormality seen on an MRI scan. T2 hyperintense lesions are usually dense areas of abnormal tissue.Continue Reading
T2 hyperintense lesions in the brain are commonly seen with multiple sclerosis, small strokes, migraines, tumors, inflammation and many other conditions. T2 hyperintense lesions are seen in other organs, as well. For example, malignant liver tumors often appear as T2 hyperintense lesions.
MRI can acquire images with or without contrast, and by using either T1 or T2 weighting. Other methods of acquiring images, such as diffusion weighting and FLAIR, are also available. A full scan usually involves acquiring a number of images using different methods. The various methods of acquiring images reveal different properties of the tissues.Learn more about Conditions & Diseases
The cost of a magnetic resonance imaging scan of the brain typically ranges from $1,000 to $5,000, according to CostHelper. The cost varies by location, complexity of the MRI and whether the scan is done in a hospital or office setting.Full Answer >
The primary difference between traditional MRI, or magnetic resonance imaging scanners, and open MRI systems is open MRI devices have an open bed for the patient to lay in during the scan rather than the closed tube of a traditional scanner. While many patients prefer open MRI due to the high noise levels and close confines of a traditional MRI, most open MRI devices cannot achieve the same level of resolution as traditional systems, explains Health Diagnostics.Full Answer >
A doctor can determine the size of a thoracic aortic aneurysm by ordering a magnetic resonance imaging or computed tomography scan of a patient's chest and measuring it, states the Society for Vascular Surgery. If the aneurysm is less than 2 inches long and the patient has no symptoms, the physician may wait and take repeat scans every six months. Aneurysms that are larger than 2 inches or cause symptoms may require treatment.Full Answer >
Magnetic resonance imaging, or MRI, and ultrasounds are effective alternatives to a CAT scan, depending on the circumstances, according to DrGreene.com. MRIs are usually preferable to CAT scans for imaging the head, excluding cases of trauma because MRIs require a minimum of 45 minutes to complete.Full Answer >