Editing History of neuroimaging (section)

=== Cerebral angiography ===
[[File:Cerebral_angiography,_arteria_vertebralis_sinister_injection.JPG|left|thumb|185x185px|Cerebral angiogram showing a [[Transverse plane|transverse projection]] of the [[Vertebral artery|vertebro]][[Basilar artery|basilar]] and [[posterior cerebral]] circulation.]]
Introduced in 1927, [[cerebral angiography]] enabled doctors to accurately detect and diagnose anomalies in the brain such as tumors and internal carotid artery occlusions. Over the course of a year, [[Egas Moniz]], the inventor of cerebral angiography, ran experiments with various dye solution percentages that were injected into arteries to help better visualize the blood vessels in the brain before discovering that a solution consisting of 25% sodium iodide was the safest for patients, as well as the most effective in the visualization of blood vessels and arteries within the brain.<ref>{{Cite journal |last1=Tan |first1=Siang Yong |last2=Yip |first2=Angela |date= 2014|title=António Egas Moniz (1874–1955): Lobotomy pioneer and Nobel laureate |journal=Singapore Medical Journal |volume=55 |issue=4 |pages=175–176 |doi=10.11622/smedj.2014048 |pmid=24763831 |pmc=4291941 }}</ref>