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:2/10/2016)... (PRWEB) , ... February 10, 2016 , ... Ongoing news ... Aging Life Care Association™ (ALCA) to conduct a survey that takes a closer look ... released today illustrates the prevalence and causes of TBI among the aging population, and ...
(Date:2/10/2016)... ... February 10, 2016 , ... AxoGen, Inc. (NASDAQ: AXGN), a ... for the fourth quarter and full year ended December 31, 2015 on Monday, February ... and webcast for the investment community following the release at 4:30 PM ET. Investors ...
(Date:2/10/2016)... ... ... For additional information contact Phyllis Strupp 480-488-5858 , Brain improves with age, ... Guide to Brain Training" by award-winning author Phyllis Strupp explains how brain ... 16, 2016. A free review copy is available to the media at NetGalley ...
(Date:2/10/2016)... ... 2016 , ... IDEX Health & Science, LLC announces the ... columns combine the strength of traditional stainless steel with the chemical inertness of ... operating at ultra-high pressures of 20,000 psi. The higher operating pressures allow faster ...
(Date:2/10/2016)... (PRWEB) , ... February 10, 2016 , ... The recreational ... cannabis enthusiasts in the state still face a lot of restrictions as to where ... is intended for private, personal use” and that cannabis “may not be consumed openly ...
Breaking Medicine News(10 mins):
(Date:2/10/2016)... Health, Inc. (Nasdaq: GHDX ) today reported financial results ... 2015. --> --> Revenue was ... million in the fourth quarter of 2014, an increase of 8 ... with the same period in the prior year. ... the fourth quarter of 2015, an increase of 9 percent compared ...
(Date:2/10/2016)... LEXINGTON, Massachusetts , February 10, 2016 --> ... Japan .  --> Japan .  ... Japan .  With submission, Shire continues to ... --> With submission, Shire continues to ... With submission, Shire continues to strengthen ...
(Date:2/10/2016)... and SAN DIEGO , Feb. ... a global leader in viral gene therapy manufacturing, and ... for congestive heart failure and other chronic diseases, have ... scalable manufacturing process and produce cGMP-grade RT-100 (Ad5.hAC6) Drug ... --> --> This ...
Breaking Medicine Technology: