Featured Research

from universities, journals, and other organizations

Patients May Want To Skip That Cup Of Coffee Before Undergoing PET/CT Scans

Date:
June 21, 2005
Source:
Saint Louis University
Summary:
Patients who need a positron emission tomography (PET)/computed tomography (CT) procedure to evaluate known or suspected malignancies should lay off the java, according to research by Medhat M. Osman, M.D., Ph.D., assistant professor in the department of internal medicine's division of nuclear medicine and director of PET at Saint Louis University Hospital.

ST. LOUIS -- Patients who need a positron emission tomography (PET)/computed tomography (CT) procedure to evaluate known or suspected malignancies should lay off the java, according to research by Medhat M. Osman, M.D., Ph.D., assistant professor in the department of internal medicine's division of nuclear medicine and director of PET at Saint Louis University Hospital.

Related Articles


Dr. Osman presented his study at the Society of Nuclear Medicine's annual conference Sunday in Toronto. His research traces the relationship between caffeine intake and myocardial uptake, which is the amount of tracer used during PET/CT that can be detected by the whole-body scans.

Most PET scans today are performed with an imaging radiopharmaceutical -- most commonly FDG (Fluorodeoxyglucose), which is a tracer that goes into the heart to provide a picture of the organ's function on PET scans. If a person exercises before having a PET/CT scan, more FDG appears in the heart region, obscuring the view. The researchers found that the same thing happens with caffeine: The heart beats faster when you drink coffee, just as it does when you exercise.

This is a problem, because an increase in the FDG in the heart seen on a scan makes it more difficult to see lesions close to the heart, says Dr. Osman. By avoiding caffeine and exercise, an individual has a better chance of providing a "good view" of his or her body's condition.

Patients who had coffee before their scans had a "significantly higher" myocardial uptake than those with low or no caffeine intake, says Dr. Osman. Even average caffeine consumption "may directly affect myocardial uptake," he added.

###

Established in 1836, Saint Louis University School of Medicine has the distinction of awarding the first M.D. degree west of the Mississippi River. Saint Louis University School of Medicine is a pioneer in geriatric medicine, organ transplantation, chronic disease prevention, cardiovascular disease, neurosciences and vaccine research, among others. The School of Medicine trains physicians and biomedical scientists, conducts medical research, and provides health services on a local, national and international level.


Story Source:

The above story is based on materials provided by Saint Louis University. Note: Materials may be edited for content and length.


Cite This Page:

Saint Louis University. "Patients May Want To Skip That Cup Of Coffee Before Undergoing PET/CT Scans." ScienceDaily. ScienceDaily, 21 June 2005. <www.sciencedaily.com/releases/2005/06/050621073526.htm>.
Saint Louis University. (2005, June 21). Patients May Want To Skip That Cup Of Coffee Before Undergoing PET/CT Scans. ScienceDaily. Retrieved March 30, 2015 from www.sciencedaily.com/releases/2005/06/050621073526.htm
Saint Louis University. "Patients May Want To Skip That Cup Of Coffee Before Undergoing PET/CT Scans." ScienceDaily. www.sciencedaily.com/releases/2005/06/050621073526.htm (accessed March 30, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, March 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Bionic Ants Could Be Tomorrow's Factory Workers

Bionic Ants Could Be Tomorrow's Factory Workers

Reuters - Innovations Video Online (Mar. 30, 2015) Industrious 3D printed bionic ants working together could toil in the factories of the future, says German technology company Festo. The robotic insects cooperate and coordinate their actions and movements to achieve a common aim. Amy Pollock reports. Video provided by Reuters
Powered by NewsLook.com
Solar Impulse Departs Myanmar for China

Solar Impulse Departs Myanmar for China

AFP (Mar. 30, 2015) Solar Impulse 2 takes off from Myanmar&apos;s second biggest city of Mandalay and heads for China&apos;s Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Internet Giants Drive Into the Electric Vehicle Space

Internet Giants Drive Into the Electric Vehicle Space

Reuters - Business Video Online (Mar. 30, 2015) Internet companies are looking to disrupt the auto industry with new smart e-vehicles, but widespread adoption in Asia may not be cured by new Chinese investments. Pamela Ambler reports. Video provided by Reuters
Powered by NewsLook.com
Inspectors Found Faulty Work Before NYC Blast

Inspectors Found Faulty Work Before NYC Blast

AP (Mar. 27, 2015) An hour before an apparent gas explosion sent flames soaring and debris flying at a Manhattan apartment building, injuring 19 people, utility company inspectors decided the work being done there was faulty. (March 27) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins