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:6/2/2016)... , June 2, 2016 The Department ... has awarded the 44 million US Dollar project, for the ... Vehicle Plates including Personalization, Enrolment, and IT Infrastructure , ... in the production and implementation of Identity Management Solutions. Numerous ... however Decatur was selected for the ...
(Date:5/24/2016)... -- Ampronix facilitates superior patient care by providing unparalleled technology to leaders of the ... latest premium product recently added to the range of products distributed by Ampronix. ... ... ... Display- Ampronix News ...
(Date:5/9/2016)... Elevay is currently known as ... for high net worth professionals seeking travel for work ... world, there is still no substitute for a face-to-face ... your deal with a firm handshake. This is why ... of citizenship via investment programs like those offered by ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... 27, 2016 , ... Newly created 4Sight Medical Solutions ... the healthcare market. The company's primary focus is on new product introductions, to ... that are necessary to help companies efficiently bring their products to market. , ...
(Date:6/27/2016)... , June 27, 2016   Ginkgo Bioworks , ... industrial engineering, was today awarded as one of ... of the world,s most innovative companies. Ginkgo Bioworks ... for the real world in the nutrition, health ... work directly with customers including Fortune 500 companies ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... While the ... such as the Cary 5000 and the 6000i models are higher end machines that ... the height of the spectrophotometer’s light beam from the bottom of the cuvette holder. ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one of the ... brand, UP4™ Probiotics, into Target stores nationwide. The company, which has been manufacturing ... to its list of well-respected retailers. This list includes such fine stores as ...
Breaking Biology Technology: