Current modulation boosts CT quality and radiation
X-ray tube current modulation, a popular feature available in newer CT scanners, improves image quality but may result in a higher radiation dose, according to Harvard University researchers.
X-ray tube current modulation, a popular feature available in newer CT scanners, improves image quality but may result in a higher radiation dose, according to Harvard University researchers.
Dr. Vassilios Raptopoulos, a professor of radiology, and colleagues analyzed the use of tube current modulation in a study of 55 consecutive oncology patients. The patients had undergone contrast-enhanced MSCT with the tube current modulation feature on the z-axis. They found that image quality/signal-to-noise ratio was much improved over a fixed level dose. Use of the feature also resulted in a significantly higher radiation dose, however.
Raptopoulos reported the study at the Stanford Multidetector-Row CT meeting in San Francisco in June.
The Reading Room Podcast: Current Perspectives on the Updated Appropriate Use Criteria for Brain PET
March 18th 2025In a new podcast, Satoshi Minoshima, M.D., Ph.D., and James Williams, Ph.D., share their insights on the recently updated appropriate use criteria for amyloid PET and tau PET in patients with mild cognitive impairment.
