CTA vs MRA - Is CTA Better Than CTA?

An MRI brain by itself is useful only when like the CT head Doesn't show hemorrhage, but also there you have in shown the acute stroke yet or Something else. CTA's are actually For MRA with contrast It has a very high sensitivity and specificity almost equal to CTA CTA is just slightly better We typically use the MRA If we don't need a vessel imaging, so if it's not an acute stroke patient,. You know an international candidate The MRA also has advantages and sometimes you can actually get an MRA without needing to do contrast It's called time of flight MRA.