The Medical Imaging and Technology Alliance (MITA) has published its fourth standard since 2010 to optimize CT radiation dose.
The new addition is NEMA XR 28: Supplemental Requirements for User Information and System Function Related to Dose in CT.
The standard requires all CT equipment to include information on how operators can optimize and reduce radiation levels when performing CT studies, MITA noted. This will ensure that authorized CT operators have all the information they need to maintain image quality and adjust dose levels appropriately based on individual patient needs, said Gail Rodriguez, executive director of MITA, in a statement.
In October 2012, the organization published another standard, NEMA XR 26, to ensure that only authorized users can access CT scanners, MITA said.
![Images show the pectoralis muscles of a healthy male individual who never smoked (age, 66 years; height, 178 cm; body mass index [BMI, calculated as weight in kilograms divided by height in meters squared], 28.4; number of cigarette pack-years, 0; forced expiratory volume in 1 second [FEV1], 97.6% predicted; FEV1: forced vital capacity [FVC] ratio, 0.71; pectoralis muscle area [PMA], 59.4 cm2; pectoralis muscle volume [PMV], 764 cm3) and a male individual with a smoking history and chronic obstructive pulmonary disorder (COPD) (age, 66 years; height, 178 cm; BMI, 27.5; number of cigarette pack-years, 43.2, FEV1, 48% predicted; FEV1:FVC, 0.56; PMA, 35 cm2; PMV, 480.8 cm3) from the Canadian Cohort Obstructive Lung Disease (i.e., CanCOLD) study. The CT image is shown in the axial plane. The PMV is automatically extracted using the developed deep learning model and overlayed onto the lungs for visual clarity.](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/03/genkin.25LqljVF0y.jpg?auto=format%2Ccompress&crop=focalpoint&dpr=2&fit=crop&h=167&q=70&w=250)