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CTA useful in detecting ruptured cerebral aneurysms
May 07, 2007CT angiography (CTA) has a nearly 100% detection rate in acute ruptured, cerebral aneurysms, according to a recent study conducted at the Health Sciences Center in Winnipeg, Canada.
The study consisted of 171 patients with acute subarachnoid hemorrhage (SAH) who underwent preoperative 3D CTA.
CTA correctly detected the ruptured aneurysm in 170 cases when compared to intraoperative findings, Bijal Patel, MD, lead author of the study. Of the 22 cases where there was more than one aneurysm, CTA correctly identified the ones that were ruptured every time. According to the study, the sensitivity of CTA was 99.4% in detecting the ruptured aneurysm in the setting of acute SAH. "In the one case where CTA initially did not demonstrate the ruptured aneurysm, the study was severely degraded with motion artifact," said Dr. Patel.
"While CTA provides detailed information on the features of the aneurysm, its true accuracy in the clinical setting could only be determined when compared to surgical findings," said Dr. Patel "As in our institution and undoubtedly many others, it is the standard of practice to follow a confirmed SAH with a CTA. We felt it was important to perform a study that would evaluate the utility of CTA as the primary diagnostic investigation in detecting acute ruptured cerebral aneurysms using correlation with intraoperative findings," said Dr. Patel.
"Although we were expecting CTA to demonstrate a high detection rate for acute ruptured aneurysms, we were not expecting the accuracy to be as high as it was. From the results of our study we concluded that CTA provides prompt and accurate diagnostic and anatomic information with a 99.4% detection rate in acute ruptured aneurysms," said Dr. Patel. "In cases of multiple aneurysms CTA is able to discern the ruptured one accurately. Furthermore, a positive CTA in the setting of acute spontaneous SAH is sufficient for intraoperative treatment planning," he said.
American Roentgen Ray Society
"While CTA provides detailed information on the features of the aneurysm, its true accuracy in the clinical setting could only be determined when compared to surgical findings," said Dr. Patel "As in our institution and undoubtedly many others, it is the standard of practice to follow a confirmed SAH with a CTA. We felt it was important to perform a study that would evaluate the utility of CTA as the primary diagnostic investigation in detecting acute ruptured cerebral aneurysms using correlation with intraoperative findings," said Dr. Patel.
"Although we were expecting CTA to demonstrate a high detection rate for acute ruptured aneurysms, we were not expecting the accuracy to be as high as it was. From the results of our study we concluded that CTA provides prompt and accurate diagnostic and anatomic information with a 99.4% detection rate in acute ruptured aneurysms," said Dr. Patel. "In cases of multiple aneurysms CTA is able to discern the ruptured one accurately. Furthermore, a positive CTA in the setting of acute spontaneous SAH is sufficient for intraoperative treatment planning," he said.
American Roentgen Ray Society
Aneurysm Current Events and Aneurysm News RSSNew treatment option for ruptured brain aneurysms
Researchers in Finland have identified an effective new treatment option for patients who have suffered a ruptured brain aneurysm, a potentially life-threatening event. Results of the new study on stent-assisted coil embolization were published today in the online edition of Radiology.
Operation for aneurysm yields nearly normal longevity
Preventive operations are being used more and more often to treat abdominal aortic aneurysms.
Minimally invasive stroke treatment produces better patient outcomes than surgical operation
While minimally invasive coil treatments for those with a ruptured brain aneurysm have proved to be a more effective technique than traditional surgical operation in selected patients, the superior procedure is drastically more expensive.
Study in Nature Medicine establishes major new treatment target in diseased arteries
Removing a single protein prevents early damage in blood vessels from triggering a later-stage, frequently lethal complication of atherosclerosis.
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Spinal taps carry higher risks for infants and elderly, study shows
An X-ray-guided spinal tap procedure fails more than half of the time in young infants and should be used sparingly, if at all, for those patients, according to a new study done by researchers at Wake Forest University School of Medicine.
Noninvasive Screening Test May Detect Narrowing in Intracranial Stents According to Study by Rush University Medical Center
Great advances have been made in treating blockages in the arteries of the brain using angioplasty to widen the narrowed artery and a stent to hold the artery open.
Smokers with stroke in the family 6 times more likely to have stroke too
A new study shows that people who are smokers and have a family history of brain aneurysm appear to be significantly more likely to suffer a stroke from a brain aneurysm themselves.
Routine Testing After Aneurysm Coiling Carries Low Risk
A very low risk of complication is associated with a routine test that determines whether a brain aneurysm treated with endovascular coiling has started to recur, a study led by the University of Cincinnati Neuroscience Institute has shown.
Yale researchers unravel mystery of brain aneurysms
Yale researchers have taken the first critical steps in unraveling the mysteries of brain aneurysms, the often fatal rupturing of blood vessels that afflicts 500,000 people worldwide each year and nearly killed Vice President-elect Joseph Biden two decades ago.
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The Brain Aneurysm by Robert Spetzler (Author) This book has been expertly written and illustrated for patients with brain aneurysms and their families and for physicians and paramedical professionals interested in learning more about this field. The book contains detailed information about the investigation and screening of brain aneurysms and critical chapters related to their treatment. A comprehensive section on coma caused by ruptured brain aneurysms discusses the difficult choices facing both families and physicians during the management of critically ill aneurysm and brain hemorrhage patients. The book explains the process of informed consent for the investigation and treatment of brain aneurysms and the rationale for the choices given and decisions made. The risks and benefits of various procedures encountered by brain... |
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