An MRI is a test that uses a magnetic field and pulses of radio wave energy to make pictures of the spine. In many cases, an MRI gives different information than an X-ray, an ultrasound, or a CT scan. An MRI also may show problems that cannot be seen with other imaging tests.
Note: A general discussion of the causes of the subprime mortgage crisis is included in Subprime mortgage crisis, Causes and Causes of the 2007â2012 global financial crisis. This article focuses on a subset of causes related to affordable housing policies, Fannie Mae and Freddie Mac and government regulation.
Many factors directly and indirectly caused the Great Recession, with experts and economists placing different weights on particular causes. Major causes of the initial subprime mortgage crisis and following recession include: International trade imbalances and lax lending standards contributing to high levels of developed country household debt and real-estate bubbles that have since burst; U.S. government housing policies; and limited regulation of non-depository financial institutions. Once t