What does DLP stand for in computed tomography?

In computed tomography, DLP stands for Dose Length Product. It is a crucial measurement that quantifies the overall radiation dose a patient receives during a CT scan. DLP is calculated by multiplying the CT dose index (CTDI) by the length of the scanned area in centimeters. This measure is useful for assessing and comparing radiation exposure across different CT examinations and protocols, helping to ensure that the amount of radiation is as low as reasonably achievable (ALARA) while still obtaining necessary diagnostic information.

The concept of DLP is significant for radiation safety, enabling healthcare providers to monitor and manage the radiation dose effectively. Understanding DLP is essential for CT technologists and radiologists in choosing appropriate scanning parameters and in communicating with patients regarding their exposure to radiation during diagnostic imaging procedures.