for people ages 18 years and up (full criteria)
at UC Davis
study started
estimated completion
Principal Investigator
by Lorenzo Nardo, MD (ucdavis)



To determine the minimum scan duration for fluorine-18 positron-emitting radioactive isotope-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/computed tomography (CT) scans performed on a total-body PET/CT scanner that results in non-inferior image quality to 18F-FDG PET/CT scans performed on a conventional PET/CT scanner. The subject population will be patients being staged for lung cancer, lymphoma, or melanoma.

Official Title

Quantitative Comparison of Imaging Characteristics of uEXPLORER and Conventional PET/CT in Patients With Lung Cancer, Lymphoma, and Melanoma Undergoing Standard-of-Care FDG-PET/CT for Initial Staging


Lung Neoplasm Lymphoma Melanoma Fluorodeoxyglucose Positron-emission Tomography Lung Neoplasms uEXPLORER/mCT mCT/uEXPLORER


You can join if…

Open to people ages 18 years and up

  1. Ability to understand and willingness to sign an informed consent form.
  2. Ability to adhere to the study visit schedule and all protocol requirements.
  3. Men and women ≥18 years of age.
  4. Initial diagnosis of lung cancer, melanoma or lymphoma.
  5. Patients who have been referred for a PET/CT scan for the purpose of initial staging.
  6. No history of other malignancy within last 5 years except for early skin cancer.
  7. No prior treatment with chemo- or radiotherapy.

You CAN'T join if...

  1. Pregnant women.
  2. Claustrophobia.
  3. Any significant medical condition that in the opinion of the investigator would prevent the subject from participating and/or adhering to study related procedures or interfere with subject safety.


  • University of California Davis
    Sacramento California 95817 United States

Lead Scientist at University of California Health

  • Lorenzo Nardo, MD (ucdavis)
    Associate Professor, Radiology. Authored (or co-authored) 87 research publications.


accepting new patients by invitation only
Start Date
Completion Date
University of California, Davis
Study Type
Last Updated