About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Research Suggests Decreasing KV Reduces Radiation Dose in Lumbar Spine CT

by Kathy Jones on April 14, 2013 at 11:22 PM
Font : A-A+

 Research Suggests Decreasing KV Reduces Radiation Dose in Lumbar Spine CT

A new study has revealed that an algorithm that takes the patient's size into consideration can cut radiation dose by 41% in lumbar spine CT without compromising the diagnostic quality of the images.

Researchers at Yeouido St. Mary's Hospital in Seoul, Korea examined 107 patients using semi-automated attenuation-based tube potential selection which optimized tube potential at 100 kilovoltage, rather than the standard 120 kilovoltage. Decreasing the kilovoltage decreased the radiation dose from a mean of 21.78 mGy to a mean of 12.77 mGy, but it can increase the image noise (graininess of the image), said Dr. Junghyun Lim, lead author of the study.

Advertisement

The images were reconstructed using either the standard filtered back projection or iterative reconstruction - a technique designed to reduce image noise. Two musculoskeletal radiologists reviewed the images and then scored them based on level of noise, visibility of structure and confidence of diagnosis. They concluded that regardless of the reconstruction method, the lower kilovoltage images were of diagnostic quality, said Dr. Lim. "We conducted objective measurements of image noise as well," noted Dr. Lim. The objective measurements favored the images that had undergone iterative reconstruction, he said.

Dr. Lim noted that his facility performs between 140-150 lumbar CT exams each month. Based on the results of this study, "the routine lumbar spine CT exam is now conducted at 100 kilovoltage using filtered back projection, he said."

Dr. Lim's study is part of an electronic exhibit that will be available from April 13-April 19 at the ARRS Annual Meeting in Washington, DC.



Source: Eurekalert
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Advertisement
News Category
What's New on Medindia
Turmeric: Magic Ingredient to Keep you Healthy in Winter
Top 7 Benefits of Good Oral Hygiene
Healthy and Safer Thanksgiving 2021
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Spondylosis Radiotherapy X-Ray Kyphosis Radiation Hazards Acute Radiation Syndrome 

Recommended Reading
Computed Tomography
Computed Tomography (CT) scan is a type of medical examination that uses X-rays and computer ......
Magnetic Resonance Imaging
Encyclopedia section of medindia gives general info about Magnetic Resonance Imaging...
Radioisotope Scan
Encyclopedia section of medindia gives general info about Nuclear Medicine...
Acute Radiation Syndrome
Acute radiation syndrome occurs when a person is exposed to a high dose of external penetrating radi...
Kyphosis
Kyphosis is a spinal disorder, which is derived from Greek word – 'kyphos' which means bowed or ben...
Radiation Hazards
Ionizing radiation can damage living tissue in the human body. It strips away electrons from atoms b...
Radiotherapy
A detailed account of radiation, its mode of action, side effects and dosage in the treatment of ......
Spondylosis
Encyclopedia section of medindia gives general information about Spondylosis...
X-Ray
Encyclopedia section of medindia gives a brief Overview of X-Ray  ...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use