Michael Kraft1, Mohannad Ibrahim2, Matthew Spector3, Reza Forghani4, Ashok Srinivasan5. 1. University of Michigan Medical School, Ann Arbor, MI, United States. 2. Department of Radiology, University of Michigan Health System, Ann Arbor, MI, United States. 3. Department of Otolaryngology, University of Michigan health System, Ann Arbor, MI, United States. 4. Department of Radiology, McGill University, Montreal, Canada. 5. Department of Radiology, University of Michigan Health System, Ann Arbor, MI, United States. Electronic address: ashoks@med.umich.edu.
Abstract
OBJECTIVE: To compare lesion conspicuity amongst DECT monochromatic series (40, 45, 50keV), and single-energy CT (SECT) equivalent images in head and neck squamous cell carcinomas (HNSCC). METHODS: Two readers compared DECT images to 70keV SECT equivalent series in 39 patients with HNSCC on lesion margin, enhancement, and overall conspicuity. RESULTS: The 45keV and 50keV images were significantly better (p-values ≤0.001) than the SECT equivalent in lesion enhancement, margins, and overall conspicuity for both readers. Readers mostly preferred the 50keV monochromatic series. CONCLUSION: DECT can provide better lesion visualization than SECT in HNSCC.
OBJECTIVE: To compare lesion conspicuity amongst DECT monochromatic series (40, 45, 50keV), and single-energy CT (SECT) equivalent images in head and neck squamous cell carcinomas (HNSCC). METHODS: Two readers compared DECT images to 70keV SECT equivalent series in 39 patients with HNSCC on lesion margin, enhancement, and overall conspicuity. RESULTS: The 45keV and 50keV images were significantly better (p-values ≤0.001) than the SECT equivalent in lesion enhancement, margins, and overall conspicuity for both readers. Readers mostly preferred the 50keV monochromatic series. CONCLUSION: DECT can provide better lesion visualization than SECT in HNSCC.