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Newsletter - December 2013   send this newsletter to a colleague
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Dear MDCT.net users,

This month’s newsletter is the first of a new series focusing on strategies for radiation dose reduction in different body regions, starting with the brain, head and neck.

One of the main concerns associated with MDCT is the exposure to ionizing radiation, which may compromise the safety of patients undergoing these examinations. Simply reducing the radiation dose by lowering the X-ray tube current and voltage is not recommended due to the concomitant loss in image quality. Several dose-reduction techniques have been developed specifically for head CT, ranging from automated tube current modulation to lowering the tube potential and using noise-reduction filters. The objective of each strategy is to find the right balance between the high diagnostic benefit of MDCT and patients' safety, without sacrificing image quality.

The contributions presented here address this important topic by providing an overview of recent technical and practical points of view from the scientific literature. In particular, we highlight two research papers that described innovative dose-reduction strategies for head and neck CT, and provide links to the full text of relevant book chapters, other recent articles and content from the MDCT.net archive.

As 2013 comes to a close, we thank you for your continuing interest in MDCT.net and send our very best wishes for the new year.

From the MDCT.net team 


 
 
Strategies for radiation dose reduction in head and neck CT
V. Matarese

Two newly published research papers illustrate how innovative strategies can be applied to brain CT and supraaortic CT angiography to bring the effective dose near to, or below, the milliSievert level.

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Ardley ND, Lau KK, Buchan K.   Radiation dose reduction using a neck detection algorithm for single spiral brain and cervical spine CT acquisition in the trauma setting. Emerg Radiol. 2013 Dec;20(6):493-497

Wu TH, Hung SC, Sun JY et al.   How far can the radiation dose be lowered in head CT with iterative reconstruction? Analysis of imaging quality and diagnostic accuracy. Eur Radiol. 2013 Sep; 23(9):2612-2621

Korn A, Fenchel M, Bender B et al.  High-pitch dual-source CT angiography of supra-aortic arteries: assessment of image quality and radiation dose. Neuroradiology. 2013 Mar;55(4):423-430


Ramgren B, Björkman-Burtscher IM, Holtås S, Siemund R.  CT angiography of intracranial arterial vessels: impact of tube voltage and contrast media concentration on image quality. Acta Radiol. 2012 Oct 1;53(8):929-34
 

Wong ST, Yiu G, Poon YM et al.  Reducing radiation exposure from computed tomography of the brain in children--report of a practical approach. Childs Nerv Syst. 2012 May;28(5):681-689

 
 
 
Radiation Dose from Multidetector CT

Radiation Dose from Multidetector CT

Tack Denis; Kalra, Mannudeep K.; Gevenois, Pierre Alain (Eds.)
Springer 2012
Table of Contents
Dose Optimization and Reduction in CT of the Brain and Head and Neck Region
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Multislice CT

Multislice CT

MF Reiser, CR Becker, K Nikolaou, G Glazer (Eds.) - Springer 2009
Table of Contents
MDCT in Neuro-Vascular Imaging
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FROM THE MDCT.net ARCHIVE
 
 
Technical Considerations
Use of high-iodine-concentration contrast medium can overcome increased noise during low-radiation MDCT angiography


V Matarese
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MDCT radiation dose in children is further reduced by appropriate timing in the use of breast shields


C Catalano
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Optimizing image quality of cerebrovascular CT angiography

V Matarese
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Putting theory into practice: hands-on training in dose reduction for radiology departments

V Matarese
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Radiation dose from Adult and Pediatric Multidetector Computed Tomography


Book Review by JF Paul
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How to balance radiation dose and diagnostic yield

HC Becker
From: ECR 2013, MDCT Symposium, Vienna, March 9th, 2013
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How to marry scanner and contrast variables to maximize radiation dose reduction


M Prokop
From: ECR 2012, MDCT Symposium, Vienna, Austria 2nd March 2012
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High Concentration Contrast Media and Radiation Dose Reduction "Introduction and Technology Overview"


C Loewe
From: ECR 2011, MDCT Symposium, Vienna, Austria 3-7 March 2011
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Dose reduction strategies in contrast-enhanced CT

Module 1: Principles of radiation dose reduction in CT


A Vanzulli

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MDCT.net's Guide to Technology and Protocols – Radiation Dose

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