title: 18-Month Performance Assessment of Gemini TF 16 PET/CT System in a High-Volume Department.
abstract: Acceptance testing is a set of quality control tests performed to verify various manufacturer-specified parameters before a newly installed PET/CT system can be accepted for clinical use. A new PET/CT system, Gemini TF 16, installed in our department in September 2012 has a PET component capable of time-of-flight imaging using lutetium-yttrium-oxyorthosilicate crystals and operates in 3-dimensional mode. Our aim was to evaluate the system before acceptance and observe the consistency of its performance during high-volume work for 18 mo after installation (we perform an average of 30 PET/CT scans daily).
  
  
  METHODS
  We performed NEMA (National Electrical Manufacturers Association) NU-2 2007 acceptance testing on the Gemini TF 16; continuously evaluated its gain calibration, timing resolution, and energy resolution during the subsequent 18 mo; and analyzed the results.
  
  
  RESULTS
  The system passed the acceptance testing and showed few fluctuations in energy and timing resolutions during the observation period.
  
  
  CONCLUSIONS
  The Gemini TF 16 whole-body PET/CT system performed excellently during the 18-mo study period despite the high volume of work.
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India ashish.kumar.jha.77@gmail.com.
authors: Ashish Kumar
authors: AK
authors: Jha
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India.
authors: Sneha
authors: S
authors: Mithun
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India.
authors: Abhijith Mohan
authors: AM
authors: Singh
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India.
authors: Nilendu C
authors: NC
authors: Purandare
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India.
authors: Sneha
authors: S
authors: Shah
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India.
authors: Archi
authors: A
authors: Agrawal
authors: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Parel, Mumbai, India.
authors: Venkatesh
authors: V
authors: Rangarajan
mesh_terms: D006748:Hospital Departments; D000072078:Positron Emission Tomography Computed Tomography / Q000295:instrumentation* / Q000592:standards* / Q000706:statistics & numerical data; D011786:Quality Control; D016526:Workload
keywords: LSO; LYSO; NEMA QC; PET; PET/CT; fully 3-dimensional whole-body imaging; time-of-flight