Navigation Links
New thoracic imaging approach can pinpoint underlying venous problems
Date:10/8/2007

CINCINNATI University of Cincinnati (UC) radiologists have developed a new technique for capturing images of chest veins that eases diagnosis of venous diseases.

Multi-detector computed tomography (CT) scanners are traditionally used to create three-dimensional images of arteries, the vessels which carry oxygen-rich blood away from the heart and distribute blood throughout the body. Veins, smaller vessels that return blood to the heart, are more difficult to accurately image.

Developed by Cristopher Meyer, MD and Achala Vagal, MD, the new protocol allows radiologists to compensate for the extra time it takes contrast solution to reach the veins so useful images can be produced using the CT scanner.

We found that the rapid-imaging scanners were almost too fast for venous studies, explains Vagal, a UC assistant professor and radiologist at University Hospital. By the time the contrast reached the patients veins, there were too many artifacts to make any meaningful conclusions about possible diseasefor example, blood clots.

Venous disease is rare and can be difficult to pinpoint, she adds. This new protocol uses the same imaging equipment in a novel way that allows us to acquire better venous images and make good clinical decisions.

Vagal presented guidelines for this thoracic imaging protocol at the North American Society of Cardiovascular Imagings 35th Annual Meeting and Scientific Sessions in Washington, D.C., on Oct. 8.

For this new imaging technique, the CT technologist prepares two syringes of contrast: The first includes 140 cubic centimeters (CC) of undiluted contrast; the second contains a diluted mixture of 100 CC of contrast and 10 CC of saline solution.

The key to getting accurate clinical images of the veins is in the timing, Vagal says.

Both syringes are given consecutively at a rate of four CC per second, with a 60-second delay between the final injection and initiation of the CT scan.

Previously, there was so much dense contrast in the veins that all you could see on the CT scan were streaks that didnt tell you anything about possible venous disease, explains Vagal. Delaying the scan gave us enough time for both the arteries and the veins to be opacified, which resulted in the crisp images that allowed us to make better clinical determinations.

Vagal is affiliated with the Neuroscience Institute at UC and University Hospital, a center of excellence that focuses on the main diseases of the brain and nerves such as stroke, brain tumors, brain trauma, Parkinsons and Alzheimers disease, epilepsy, ALS and multiple sclerosis.


'/>"/>
Contact: Amanda Harper
amanda.harper@uc.edu
513-558-4657
University of Cincinnati
Source:Eurekalert

Related biology news :

1. Imaging Lymph Nodes with Nanoparticles
2. New imaging method gives early indication if brain cancer therapy is effective, U-M study shows
3. Special Imaging Study Shows Failing Hearts Are Energy Starved
4. Duke engineers develop new 3-D cardiac imaging probe
5. Confocal imaging promises early detection of skin cancer
6. Newer imaging techniques may lead to over-treatment
7. Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton
8. Microscopic brain imaging in the palm of your hand
9. New imaging technology shown to detect pancreatic inflammation in type 1 diabetes
10. Purdues gold nanorods brighten future for medical imaging
11. PET imaging reveals the immune system at work
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... 2017 Today HYPR Corp. , leading ... component of the HYPR platform is officially FIDO® ... security architecture that empowers biometric authentication across Fortune 500 ... secured over 15 million users across the financial services ... home product suites and physical access represent a growing ...
(Date:3/30/2017)... -- On April 6-7, 2017, Sequencing.com will host the world,s ... at Microsoft,s headquarters in Redmond, Washington ... health and wellness apps that provide a unique, personalized ... is the first hackathon for personal genomics and the ... the genomics, tech and health industries are sending teams ...
(Date:3/28/2017)... -- The report "Video Surveillance Market by ... Devices), Software (Video Analytics, VMS), and Service (VSaaS, Installation ... 2022", published by MarketsandMarkets, the market was valued at ... reach USD 75.64 Billion by 2022, at a CAGR ... considered for the study is 2016 and the forecast ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... Lithuania, announced today that they have entered into a multiyear collaboration to identify ... CRISPR researchers with additional tools for gene editing across all applications. , Under ...
(Date:10/11/2017)... Charlotte, N.C. (PRWEB) , ... October 11, 2017 ... ... ARCS® Foundation President Andi Purple announced Dr. Suneel I. Sheikh, the ... Laboratories ( ASTER Labs ), Inc. has been selected for membership in ...
(Date:10/11/2017)... 11, 2017  VMS BioMarketing, a leading provider of patient ... Clinical Nurse Educator (CNE) network, which will launch this week. ... among health care professionals to enhance the patient care experience ... and other health care professionals to help women who have ... ...
(Date:10/10/2017)... ... , ... San Diego-based team building and cooking events company, Lajollacooks4u, has unveiled ... bold new look is part of a transformation to increase awareness, appeal to new ... , It will also expand its service offering from its signature gourmet cooking classes ...
Breaking Biology Technology: