Navigation Links
Low-dose chest CT effective in reducing radiation for evaluation of cardiothoracic surgery patients
Date:5/3/2011

Recent studies have shown that a 64-detector CT angiography utilizing prospective electrocardiographic (ECG) gating produces a quality image but considerably reduced patient radiation dose when compared to retrospective ECG gating, according to research being presented at the 2011 American Roentgen Ray Society's annual meeting.

The study was conducted in the Department of Radiology at the University Hospitals Case Medical Center, in Cleveland, OH. Researchers evaluated 29 patients who underwent prospectively-gated 100 kV whole chest CT for preoperative cardiothoracic surgery. The mean radiation dose was determined and compared to a group of regular dose prospectively-gated exams. "The most significant aspect of our study was to demonstrate that pre-operative evaluation of cardiothoracic surgery patients can be reliably and accurately performed with low-dose chest CT that results in a radiation dose reduction of 42% when compared with traditional dose chest CT exams. In an era of heightened awareness of radiation exposure to patients from medical imaging, this is a significant finding," said Sonali Mehandru, MD, one of the authors of the study.

"In particular, our study showed that low-dose chest CT can provide accurate assessment of the coronary arteries in a sizable percentage of patients. The coronary arteries are particularly important to evaluate prior to cardiothoracic surgery because the presence of coronary artery disease impacts a patient's risk for perioperative morbidity and mortality," said Dr. Mehandru.

"Traditionally, this evaluation has been performed with cardiac catheterization -- an invasive and expensive procedure. In our study, we found that a large cohort of patients (23 of 38 patients) had accurate enough noninvasive assessment of the coronary arteries on low-dose chest CT that they did not require further evaluation with cardiac catheterization," she said.

"This is a preliminary study and further research with larger cohorts of patients is needed. However, it is a good starting point in demonstrating that radiation dose from chest CT's can be significantly reduced without compromising accuracy or reliability of anatomic evaluation. In preoperative patients who are especially prone to undergoing repeated imaging studies, this radiation dose reduction can be very significant," said Dr. Mehandru.


'/>"/>

Contact: Keri Sperry
ksperry@arrs.org
703-296-3104
American Roentgen Ray Society
Source:Eurekalert

Related medicine news :

1. Low-Dose Platelet Transfusions Deemed Safe
2. Low-Dose HRT Patch May Lessen Stroke Risk
3. Low-Dose Omega-3 Fatty Acids Dont Protect Heart Patients
4. Low-Dose Aspirin May Reduce Colon Cancer Risk
5. Low-dose aspirin reduces death rates from range of cancers by between 20 and 30 percent
6. Low-Dose Aspirin Boosts Accuracy of Colon Cancer Test
7. Small bowel blood flow in healthy subjects receiving low-dose aspirin
8. Risk of cancer increases with exposure to low-dose radiation
9. Quick Chest Pain Test Simplifies Discharge Decision
10. Concentra, American Showa to Open Associates Health Center in Blanchester, Ohio
11. Kids Tai Chi Workout Premieres in Westchester, New York, March 2, 2010
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/27/2017)... , ... March 27, 2017 , ... ... organization behind the New England Journal of Medicine and NEJM Journal Watch, announces ... Pediatrics Board Review was created by a panel of pediatricians from leading medical ...
(Date:3/27/2017)... Birmingham, Clarkston, and Lake Orion, Michigan (PRWEB) , ... ... ... can affect weight loss results. The comprehensive weight management program at Women’s ... begins with an initial evaluation and physical exam. The specialists at ...
(Date:3/27/2017)... Mateo, CA (PRWEB) , ... March 27, 2017 , ... Janet Schloz is still in ... of the best days I’ve had in a long time,” she said. , She thinks ... lot of money that I never thought I would have to help my students.” , ...
(Date:3/27/2017)... ... March 27, 2017 , ... ?Grow Healthy Vending ... the pending litigation between itself and 1800 Vending DBA Healthy You Vending. (Civil ... am thrilled to announce that we have now reached a settlement agreement regarding ...
(Date:3/26/2017)... (PRWEB) , ... March 26, 2017 , ... ... worldwide to receive the RealSelf 100 Award, a prestigious award honoring the top ... procedures and to find and connect with doctors and clinics. , In 2016, ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... Columbia, March 27, 2017  Sophiris Bio Inc. ... "Sophiris"), a clinical late-stage biopharmaceutical company developing topsalysin ... diseases, today reported fourth quarter and full year ... Key Corporate Highlights: ... Prostate Cancer. During 2016, the Company reported successful ...
(Date:3/27/2017)... , March 27, 2017   Pulmatrix, Inc . (NASDAQ: ... to address serious pulmonary diseases, today announced that it has ... cystic fibrosis and asthma to its Scientific Advisory Board ... Richard B. Moss , MD, former chief of ... the Cystic Fibrosis Center at Stanford University, and ...
(Date:3/27/2017)... 2017  iCAD (Nasdaq: ICAD), an industry-leading provider ... therapy for the early identification and treatment of ... Premarket Approval (PMA) from the U.S. Food and ... first-of-its-kind, concurrent-read computer aided detection solution for digital ... available on the PowerLook® Breast Health Solutions platform.  ...
Breaking Medicine Technology: