Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Experts offer pointers for optimizing radiation dose in head CT

01.08.2011
An article in the August issue of the Journal of the American College of Radiology summarizes methods for radiation dose optimization in head computed tomography (CT) scans. Head CT is the second most commonly performed CT examination, with 28 percent of the total number of CT examinations.

Magnetic resonance imaging (MRI) has emerged as the imaging modality of choice for a vast majority of brain and spinal indications. However, CT remains an integral part of modern neuroradiologic practice that can provide lifesaving information about patient management, specifically in patients with cerebrovascular diseases and head trauma.

Investigators from Massachusetts General Hospital, Harvard Medical School, in Boston, MA, and Johns Hopkins University in Baltimore, MD, looked at various head CT examinations and outlined strategies for radiation dose reduction for the application of CT in the head, paranasal sinuses and spine.

"In the head, specific scanning protocols must be assigned depending on the examination type or clinical indication, such as routine head CT, CT angiography, CT perfusion and paranasal or facial CT. In addition, users must ensure that CT is being performed for a valid clinical indication, whereby CT is expected to add information that will affect patient management," said Mahadevappa Mahesh, MS, PhD author of the article.

Investigators emphasize the use of certain techniques such as lower tube current, automatic exposure control and scanning at a lower tube voltage (especially for perfusion CT scans) are key for allowing substantial dose reduction for head CT examinations in both children and adults.

For more information about radiation safety in children, visit www.imagegently.org.

For more information about radiation safety in adults, visit www.imagewisely.org.

The August issue of JACR is an important resource for radiology and nuclear medicine professionals as well as students seeking clinical and educational improvement.

For more information about JACR, please visit www.jacr.org.

To receive an electronic copy of an article appearing in JACR or to set up an interview with a JACR author or another ACR member, please contact Heather Curry at 703-390-9822 or PR@acr.org.

Heather Curry | EurekAlert!
Further information:
http://www.acr.org
http://www.jacr.org

More articles from Medical Engineering:

nachricht Can radar replace stethoscopes?
14.08.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg

nachricht Novel PET imaging method could track and guide therapy for type 1 diabetes
03.08.2018 | Society of Nuclear Medicine and Molecular Imaging

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

Smallest transistor worldwide switches current with a single atom in solid electrolyte

17.08.2018 | Physics and Astronomy

Robots as Tools and Partners in Rehabilitation

17.08.2018 | Information Technology

Climate Impact Research in Hannover: Small Plants against Large Waves

17.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>