CT in Medical Sciences Awasthi Prachi*, Singh K.P. Associate Professor, Department of Radiodiagnosis, Divya Jyoti Institute of Medical Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh, India *Address for correspondence: Prachi Awasthi, Email id: drashishsingla@gmail.com
Online published on 30 April, 2015. Abstract CT scanning has been recognised as a high radiation dose modality, when compared to other diagnostic X-ray techniques, since its launch into clinical practice > 30 years ago. Over that time, as scanner technology has developed and its use has become more widespread, concerns over patient radiation doses from CT have grown.[1, 2] The introduction of multi-slice scanners has focussed further attention on this issue, and it is generally believed that it will lead to higher patient doses.[3] The amount of radiation dose a patient receives from a CT scan depends upon two key factors, the design of the scanner and also on the way that the scanner is used. The designs of single-slice and multi-slice scanners are similar in most aspects that affect radiation dose, but multi-slice scanning can potentially result in higher radiation risk to the patient due to increased capabilities allowing long scan lengths at high tube currents. Top Keywords CT scanning, Multi-slice scanning, Dose. Top |