Applications of photon-counting CT in oncologic imaging: A systematic review

Figure 1  Preferred Reporting Items for Systematic Reviews and Meta-Analyses flow diagram outlining the study selection process for a systematic review of the applications of photon-counting detector CT in oncologic imaging.

Figure 2 Number of publications by country. USA: United States of America.

Figure 3  Types of tumors assessed by photon-counting detector CT and the relative number of publications.

Figure 4  Frequency of comparison studies vs non-comparison studies in each year from 2017-2024.

Figure 5 Combination of high resolution and spectral information obtained with photon-counting detector CT. NAEOTOM Alpha allows the high-precision visualization of a pancreatic insulinoma with high precision when compared with conventional CT and magnetic resonance imaging[19]. Citation: Siemens Healthineers. The NAEOTOM Alpha class. Available from: https://www.siemens-healthineers.com/computed-tomography/naeotom. Copyright ©Siemens Healthineers AG 2024. The authors have obtained the permission (Supplementary material). MRI: Magnetic resonance imaging.

Figure 6 Comparison between second generation dual energy CT and photon-counting detector CT. The images were obtained from the vertebra of a 56-year-old patient with multiple myeloma[19]. Note the improvement in spatial resolution in the photon-counting detector CT image with a better depiction of trabeculae and osteolysis. A: Second generation dual energy CT; B: Photon-counting detector CT. Citation: Siemens Healthineers. The NAEOTOM Alpha class. Available from: https://www.siemens-healthineers.com/computed-tomography/naeotom. Copyright ©Siemens Healthineers AG 2024. The authors have obtained the permission (Supplementary material).