Monday, November 18, 2019 | 18:00 CET
Low dose lung CT
Mathias Prokop, Nijmegen/NL

Description
This Webinar describes the techniques used for low-dose lung CT, both for a clinical and a lung screening setting. It will cover how to optimize exposure parameters for various scanners, and will explain how to adapt dose to patient size so that low-contrast resolution fits the clinical question. The general rules how to select data acquisition parameters, such as number of active detector row, section thickness, pitch and rotation time will be discussed. Image reconstruction parameters play an increasingly important role for optimizing image quality while keeping dose low. Recent advances in tube, detector and reconstruction techniques have pushed the dose limit way down so that in normal size patients the lungs can nowadays comfortably imaged a less 0.2 mSv. The webinar will discuss when such ultralow-dose settings are useful and when not.

Learning objectives
1. To understand when a chest CT is a “low-dose lung CT”
2. To learn to find out what the lowest useful dose is for your scanner
3. To understand how to individualize exposure dose depending on patient size and clinical question
4. To learn how reconstruction becomes crucial for reducing dose, and what the trade-offs are when dose becomes too low
5. To comprehend the prerequisites for a scanner to be used for lung cancer screening