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first_imgVideo Player is loading.GE Cardiographe cardiac CT scanner at SCCT19Play VideoPlayMuteCurrent Time 0:00/Duration 0:38Loaded: 26.15%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -0:38 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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Videos | Cardiac Imaging | July 30, 2019 VIDEOS | EP LAB | JULY 26, 2019 VIDEO: What Electrophysiologists Need From CT Imaging Prior to AF and VT Ablations Mark Ibrahim, M.D., F read more Siemens Go.Top CT scanner at SCCT19Video Player is loading.Play VideoPlayMuteCurrent Time 0:00/Duration 1:05Loaded: 15.14%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -1:05 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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Video Player is loading.Ron Blankstein explains trends at the 2019 SCCT meetingPlay VideoPlayMuteCurrent Time 0:00/Duration 4:30Loaded: 3.68%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -4:30 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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News | July 01, 2013 Growth in Cerebral Aneurysms Increases Risk of Rupture Videos | Cardiac Imaging | July 30, 2019 VIDEO: The History of CT Calcium Scoring Arthur Agatston, M.D., clinical pro read more News | CT Angiography (CTA) | July 24, 2019 WVU Medicine Installs First Alphenix 4D CT in the U.S. The West Virginia University (WVU) Heart and Vascular Institute is the first hospital in the country to acquire the… read more Videos | Computed Tomography (CT) | July 30, 2019 VIDEO: New Advances in CT Imaging Technology Cynthia McColl… read more Videos | CT Angiography (CTA) | August 07, 2019 VIDEO: Walk Around of a Siemens Go.Top Dedicated Cardiac Scanner This is a quick walk around of the new Siemens Somatom Go.top cardiovascular edition compact computed tomography (CT) read more Cerebral aneurysms of all sizes—even small ones below seven millimeters—are 12 times more likely to rupture if they are growing in size, according to a new study published online in the journal Radiology.A cerebral aneurysm is a balloon-like bulge in a weakened blood vessel in the brain. If an aneurysm ruptures, blood is leaked into or around the brain, which can cause brain damage or death.According to The Brain Aneurysm Foundation, an estimated 6 million people in the United States have an unruptured brain aneurysm, or 1 in 50 people. Ruptured brain aneurysms occur in approximately 30,000 Americans each year and are fatal in about 40 percent of cases. Of those who survive, about two-thirds suffer some permanent neurological deficit.“Given what a devastating event a ruptured brain aneurysm is, we are very motivated to identify the real risk factors for rupture,” said the study’s lead author, J. Pablo Villablanca, M.D., chief of diagnostic neuroradiology at the David Geffen School of Medicine at the University of California, Los Angeles.In Villablanca’s study, 258 asymptomatic cerebral aneurysms identified either incidentally or during a baseline study of 165 patients (132 women, 33 men) were monitored over time (mean of 2.24 years) with computed tomography angiography (CTA), a noninvasive imaging study of the brain’s blood vessels. Patients were scanned with CTA at intervals of six or 12 months.Over the study period, the researchers observed growth in 46 or nearly 18 percent of all the intracranial aneurysms in a total of 38 patients. Three of the 39 growing saccular aneurysms ruptured, and of those, all were less than seven millimeters in size at study entry.“Our study shows that the size of the aneurysm is not as important as was once thought,” Dr. Villablanca said. “Any aneurysm is potentially capable of growth and thus requires follow-up imaging.”Current guidelines based on research conducted by the International Study of Unruptured Intracranial Aneurysms and other studies suggest that known aneurysms less than seven millimeters in size have a low risk of rupture and do not need to be monitored with imaging.Compared to the aneurysms that stayed the same size, the 46 growing aneurysms in the study were associated with a 12-fold higher risk of rupture. The researchers calculated the risk of rupture for growing aneurysms at 2.4 percent per patient-year, versus 0.2 percent for aneurysms without growth.“Our data support the need to perform longitudinal follow-up imaging to monitor for possible growth in all incidental unruptured aneurysms, including small lesions,” Dr. Villablanca said.The researchers also found that tobacco smoking and the initial size of the aneurysm were independent predictors of aneurysm growth. Together, these risk factors were associated with 78.4 percent of all aneurysm growth in the study.“The positive association between aneurysm growth, aneurysm size, and cigarette smoking suggests that the combination of these factors are associated with an increased risk of rupture and may influence the need for therapeutic intervention,” Dr. Villablanca said.Observation was the treatment of choice for 194 of 212 (91 percent) stable aneurysms. When aneurysm growth was discovered by CTA imaging, 50 percent of the growing aneurysms were treated, while the remaining 50 percent continued to be observed.###“The Natural History of Asymptomatic Unruptured Cerebral Aneurysms Evaluated at CT Angiography: Growth and Rupture Incidence and Correlation with Epidemiologic Risk Factors.” Collaborating with Dr. Villablanca were Gary R. Duckwiler, M.D., Reza Jahan, M.D., Satoshi Tateshima, M.D., Ph.D., Neil A. Martin, M.D., John Frazee, M.D., Nestor R. Gonzalez, M.D., James Sayre, Ph.D., and Fernando V. Vinuela, M.D.For more information: RSNA.org FacebookTwitterLinkedInPrint分享 Videos | CT Angiography (CTA) | August 07, 2019 VIDEO: Walk Around of a GE Cardiographe Dedicated Cardiac CT Scanner This is a quick walk around of the GE Healthcare Cardiographe dedicated cardiac CT system on display at the… read more An example of FFR-CT imaging from Beaumont Hospital in Royal Oak, Mich. The left image shows a 3D generated image of the coronary tree from a CT scan evaluated with computational fluid dynamics to determine the FFR numbers. It shows a severe restriction of the left main artery which requires a stent to revacularize. The image on the right is a comparison with the invasive angiogram from the cath lab prior to stenting.  Video Player is loading.Arthur Agatston explains the history of CT calcium scoring Play VideoPlayMuteCurrent Time 0:00/Duration 9:54Loaded: 1.67%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -9:54 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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Related Content Video Player is loading.Cynthia McCollough explains new advances in CT technologyPlay VideoPlayMuteCurrent Time 0:00/Duration 13:56Loaded: 1.17%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -13:56 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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Videos | Radiation Therapy | July 30, 2019 VIDEO: Use of Radiotherapy to Noninvasively Ablate Ventricular Tachycardia Pierre Qian, MBBS, read more Video Player is loading.Pierre Qian explains radiotherapy to ablate VTPlay VideoPlayMuteCurrent Time 0:00/Duration 7:34Loaded: 2.19%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -7:34 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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News | CT Angiography (CTA) | August 06, 2019 Artificial Intelligence Improves Heart Attack Risk Assessment When used with a common heart scan, machine learning, a type of artificial intelligence (AI), does better than… read more Video Player is loading.Mark Ibrahim explains what EPs need from CT imagingPlay VideoPlayMuteCurrent Time 0:00/Duration 5:23Loaded: 3.08%Stream Type LIVESeek to live, currently playing liveLIVERemaining Time -5:23 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. 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One of the big trends in cardiac computed tomography (CT) imaging has been the introduction of noninvasive… read more Videos | CT Angiography (CTA) | July 19, 2019 VIDEO: Overview of Cardiac CT Trends and 2019 SCCT Meeting Highlights … read morelast_img

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