PET Research Laboratory Directory

Nikolaos Karakatsanis Laboratory

Nikolaos (Nicolas) A. Karakatsanis
View Bio
Nikolaos A. Karakatsanis, Ph.D.
  • Associate Professor of Biomedical Engineering in Radiology

Nikolaos (Nicolas) A. Karakatsanis, Ph.D., earned both his master's degree and doctorate in electrical and computer engineering from the National Technical University of Athens, Greece. Previously, he worked as a research scientist at Mount Sinai's Icahn School of Medicine, University Hospitals of Geneva, Switzerland, and Johns Hopkins University Hospital. 

Sadek Nehmeh Laboratory

Sadek Nehmeh
View Bio
Sadek Nehmeh, Ph.D.
  • Professor of Medical Physics in Radiology

Sadek Nehmeh, Ph.D., is the PET and nuclear physics section chief in the Department of Radiology. In 2000, Dr. Nehmeh began his career as a postdoc and resident fellow in medical physics at the Memorial Sloan Kettering Cancer Center (MSKCC). In 2003, while at MSKCC, he was appointed to assistant physicist; the following year, he was promoted to assistant attending; and in 2009, he was promoted to associate attending. In 2017, Dr. Nehmeh joined the Department of Radiology.

Ezzat Elmoujarkach, M.S.
  • Staff Associate in Radiology