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

Perfusion Lung Scans Detect Pulmonary Embolism Better

by Medindia Content Team on September 9, 2007 at 12:35 PM
Font : A-A+

Perfusion Lung Scans Detect Pulmonary Embolism Better

According to a study in the September Journal of Nuclear Medicine , young women at risk of a pulmonary embolism should first undergo a ventilation/perfusion lung scan rather than a CT angiogram.

"A V/Q scan can be the first choice—but the CT angiogram is the classic choice—for diagnosing a pulmonary embolism," noted H. Dirk Sostman, a professor of radiology and executive vice dean at Weill Cornell Medical College in New York City and chief academic officer at the Methodist Hospital in Houston, Texas. "A 'very low probability' V/Q lung scan—together with a 'low probability' objective clinical assessment—is as reliable as a CT angiogram and allows a doctor to evaluate whether a pulmonary embolism is present or not," added Alexander Gottschalk, a professor of diagnostic radiology at Michigan State University in East Lansing.

Advertisement

A noninvasive V/Q scan involves two tests using radioactive material to measure breathing (ventilation) and circulation (perfusion) in all areas of the lungs, said Gottschalk, who has performed research with studies like the Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED) project for more than 30 years. V/Q scans reduce the radiation to the breast by about 70 times on average compared to higher-radiation procedures such as computed tomography pulmonary angiography (CTA), he explained.

"While CTA is the major test used widely to detect pulmonary embolisms, it is associated with higher radiation risk, especially for young women of reproductive age," said Gottschalk. "The combination of a low probability V/Q scan and low probability clinical assessment is extremely effective," said Sostman. "Our study is important for doctors—and their patients—since tests show that high radiation doses to the breast from CT, especially important in young women, may increase their risk of breast cancer," he added.
Advertisement

A pulmonary embolism is a sudden blockage in a lung artery, usually occurring when a blood clot travels to the lung from a vein in the leg. This condition can cause permanent damage to a part of the lung. And, if a blood clot is large—or if they are numerous—a pulmonary embolism can cause death. According to statistics, at least 100,000 cases of pulmonary embolism take place each year in this country, and it is considered the third most common cause of death in hospitalized patients. A person's risk at getting a pulmonary embolism doubles every 10 years after the age of 60.

In their study, Gottschalk and Sostman analyzed the prospectively gathered data from PIOPED II, a large-scale, multicenter trial. "Very Low Probability Interpretation of Ventilation Perfusion Lung Scans in Combination With Low Probability Objective Clinical Assessment Reliably Excludes Pulmonary Embolism: Data From PIOPED II" appears in the September issue of the Journal of Nuclear Medicine, which is published by SNM, the world's largest molecular imaging and nuclear medicine society.

Source: Eurekalert
SRM /J
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
International Day of Persons with Disabilities 2021 - Fighting for Rights in the Post-COVID Era
Effect of Blood Group Type on COVID-19 Risk and Severity
Woman with Rare Spinal Cord Defect from Birth Sues Doctor
View all

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

More News on:
Stroke Pneumoconiosis Deep Vein Thrombosis Silicosis Pulmonary Embolism Pulmonary Embolism and Deep Vein Thrombosis Deep Vein Thrombosis and Flying Single Photon Emission Computerized Tomography 
Recommended Reading
Deep Vein Thrombosis
A blood clot (thrombus) in the deep venous system of the leg leads to deep vein thrombosis (DVT). DV...
Deep Vein Thrombosis and Flying
WHO sponsored Research Into Global Hazards of Travel (WRIGHT) Project has discovered that the DVT ri...
Pneumoconiosis
Pneumoconiosis is a group of lung diseases caused by inhaled dust particles. It causes inflammation ...
Pulmonary Embolism
Pulmonary embolism (PE) is a complication that results from a block in the main artery supplying the...
Pulmonary Embolism and Deep Vein Thrombosis
Deep vein thrombosis (DVT) is a condition where blood clots develop usually in the deep veins of the...
Silicosis
Silicosis is a lung disease caused by inhalation of crystalline free silica dust. It is characterise...
Single Photon Emission Computerized Tomography
Single Photon Emission Computed Tomography, a nuclear imaging diagnostic tool helps in accurate asse...
Stroke
Stroke can cause permanent disability and it is important to recognize its early warning signs to st...

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