Navigation Links
Newer imaging techniques may lead to over-treatment

Newer imaging technologies allow physicians to visualize more of the arteries in the lungs, including detecting small blood clots not previously seen, but seeing more may have little impact on the patient's outcome, a new study suggests.

The study included 198 patients with suspected pulmonary embolism. About half of the patients (98) had a multidetector CT (MDCT) examination; 100 patients had a single-detector CT examination. The radiology examinations came back negative, and the patients did not undergo anticoagulant treatment.

MDCT is now more widely used to examine patients with suspected pulmonary embolism. It allows radiologists to see more of the arteries throughout the lungs, and to detect small clots in those arteries, said J. David Prologo, MD, chief radiology resident at University Hospitals of Cleveland and lead author of the study. However, "our study found no significant difference in the outcomes of patients ruled out for pulmonary embolism with MDCT vs. single-detector CT," he said. "It is possible that we missed small clots in the patients that had a single-detector CT examination, but at three and six months, the outcomes were similar," he said.

Seeing more can have drawbacks as well, Dr. Prologo said. "If we see the small clots, we're more likely to treat them; and there are risks to anticoagulant therapy," he said. In fact, "a recent study found a 10 times higher risk of hemorrhagic stroke in patients receiving oral anticoagulant therapy when compared to the general population," Dr. Prologo said. It is imperative that "clinicians consider the risk-benefit ratio of therapy in patients with previously undetectable small clots in the peripheral pulmonary vasculature," he added.

Dr. Prologo recommends a large-scale prospective randomized study to determine if patients with small clots need to undergo anticoagulation treatment. "Today a great many more patients are being evaluated for pulmonary emboli with scanners that can detect very small clots. This is likely to result in the discovery of many more patients with small clots who probably would not have been treated in the past and may have done fine. Improved technology is forcing us to face new clinical questions such as whether or not every small clot diagnosed with CT warrants the risks of treatment," he said.


'"/>

Source:American Roentgen Ray Society


Related biology news :

1. New imaging method gives early indication if brain cancer therapy is effective, U-M study shows
2. Duke engineers develop new 3-D cardiac imaging probe
3. Confocal imaging promises early detection of skin cancer
4. Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton
5. Microscopic brain imaging in the palm of your hand
6. New imaging technology shown to detect pancreatic inflammation in type 1 diabetes
7. Purdues gold nanorods brighten future for medical imaging
8. PET imaging reveals the immune system at work
9. New technique puts brain-imaging research on its head
10. T-rays: New imaging technology spotlighted by American Chemical Society
11. UCLA imaging study of children with autism finds broken mirror neuron system
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2017)... PUNE, India , April 13, 2017 According ... Identity Proofing, Identity Authentication, Identity Analytics, Identity Administration, and Authorization), Service, Authentication ... by MarketsandMarkets™, the IAM Market is expected to grow from USD 14.30 ... Annual Growth Rate (CAGR) of 17.3%. ... ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
(Date:4/5/2017)... April 4, 2017 KEY FINDINGS ... expand at a CAGR of 25.76% during the forecast ... the primary factor for the growth of the stem ... https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global stem cell ... application, and geography. The stem cell market of the ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... ... 22, 2017 , ... For the months of May and ... Spotlight series on “Cell Therapy Regulation” for its regenerative medicine followship. ... unique regulatory challenges of stem cell medical research. , Stem cell clinical trials ...
(Date:6/22/2017)... ... June 22, 2017 , ... Charm Sciences, Inc. is pleased to announce ... determined to be appropriate as a screening test at dairies and farms for raw ... system, and the Charm EZ Lite system. These systems are a combination incubator and ...
(Date:6/20/2017)... SQUARE, Pa. , June 20, 2017  Kibow ... is pleased to announce the issuance of a new ... gout or hyperuricemia by the U.S. Patent and Trademark ... Inc., a winner of the Buzz of Bio award ... , is akin to developing non-drug approaches to chronic ...
(Date:6/19/2017)... ... 2017 , ... As Vice President, Product Services, Mr. Guinter ... support, and client process and SOP development. , Mr. Guinter brings a wealth ... for service providers and top-tier pharmaceuticals, and as an independent consultant supported a ...
Breaking Biology Technology: