Dose reduction for CT coronary calcium scoring with a calcium-aware image reconstruction technique: a phantom study

ConclusionCT numbers remained consistent with comparable calcium scores when the calcium-aware image reconstruction technique was applied with varying tube voltage. Less consistency was observed in small calcifications with low density. Automatic reduction of tube voltage resulted in a dose reduction of up to 22%.Key Points• The calcium-aware image reconstruction technique allows for consistent CT numbers when varying the tube voltage.• Automatic reduction of tube voltage results in a reduced radiation exposure of up to 22%.• This study stresses the known limitations of the current Agatston score technique.
Source: European Radiology - Category: Radiology Source Type: research