Areas of the lungs outside the alveoli where gas exchange with the blood does not take place. During adulthood, explain why vital capacity changes with age. As one ages, the elastic fibers in the lung gradually decrease as well. elastance and greater compliance of the lungs.
Brain aneurysm: An mri/mra of the brain is an excellent screening test for the detection of even small (2-3 mm) brain aneurysms. Some neurosurgeons may recommend a ct angiogram of the brain or even a cerebral angiogram to be absolutely sure of the initial test results. Discuss the best option for you with a cerebrovascular neurosurgeon.
What vessels and diseases do neuroradiologists study with MRA? MRA can be used to evaluate most major arteries in the body. Neuroradiologists use MRA to examine the carotid arteries in the neck and the cerebral vessels in the brain. MRA can show their shape, size, location, and orientation. With this information, neuroradiologists can diagnose diseases in these vessels and then determine the best way to treat them.