@article {Asenbaum613, author = {Susanne Asenbaum and Thomas Br{\"u}cke and Walter Pirker and Uwe Pietrzyk and Ivo Podreka}, title = {Imaging of Cerebral Blood Flow with Technetium-99m-HMPAO and Technetium-99m-ECD: A Comparison}, volume = {39}, number = {4}, pages = {613--618}, year = {1998}, publisher = {Society of Nuclear Medicine}, issn = {0161-5505}, URL = {https://jnm.snmjournals.org/content/39/4/613}, eprint = {https://jnm.snmjournals.org/content/39/4/613.full.pdf}, journal = {Journal of Nuclear Medicine} }