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first_img News | Pediatric Imaging | August 14, 2019 Ultrasound Guidance Improves First-attempt Success in IV Access in Children August 14, 2019 – Children’s veins read more April 24, 2012 — The secondary cancer risk from multi-detector computed tomography (MDCT) scans is low among older adults, according to a study from Stanford University in the April issue of the Journal of the American College of Radiology. A high-speed imaging technique, MDCT is commonly used to diagnose a variety of diseases and conditions. Evidence shows that MDCT scanning offers important benefits through more accurate diagnosis and better disease management in a range of medical disorders. However, in the era of MDCT, it has been hypothesized that 1.5 percent to two percent of all cancers may be caused by CT-induced radiation.“Our study estimates the number of excess cancers due to ionizing radiation in elderly adults. Seniors harbor most diseases that typically rely on CT scanning for diagnosis and management, and therefore receive the highest exposure to CT imaging. What our study found is that the risk of developing a secondary cancer from these CT scans may potentially be lower than previously thought,” said Aabed Meer, author of the study.A retrospective cohort study was conducted using Medicare claims spanning eight years to assess CT use. The data were analyzed in two four-year cohorts, from 1998 to 2001 and 2002 to 2005. The number and types of CT scans each patient received over the four-year periods were analyzed to determine the percentage of patients exposed to threshold radiation of 50 to 100 mSv (defined as low) and >100 mSv (defined as high). The National Research Council’s Biological Effects of Ionizing Radiation VII models were used to estimate the number of radiation-induced cancers.“Combining both low-risk and high-risk patient groups (50-100 and >100 mSv), as well as those who received <50 mSv, we estimate that 1,659 cases of cancer (0.03 percent of the study population) will develop in the 1998 to 2001 cohort and 2,185 (0.04 percent of the study population) in the 2002 to 2005 cohort,” said Meer.CT scans of the head were the most common examinations in both Medicare cohorts, but abdominal imaging delivered the greatest proportion (43 percent in the first cohort and 40 percent in the second cohort) of radiation.“Although modern CT imaging is a vital part of medical care, its utilization must include a conscious acknowledgment of radiation exposure and an awareness of the pursuant carcinogenic risk. As medical care continues its dependence on advanced technologies such as MDCT, we emphasize the importance of continuing research that encourages the exploration of lower radiation dose technologies,” said Meer.For more information: www.jacr.org FacebookTwitterLinkedInPrint分享 News | Brachytherapy Systems | August 14, 2019 Efficacy of Isoray's Cesium Blu Showcased in Recent Studies August 14, 2019 — Isoray announced a trio of studies recently reported at scientific meetings and published in medica read more Image courtesy of Imago Systems News | Neuro Imaging | August 16, 2019 ADHD Medication May Affect Brain Development in Children A drug used to treat attention-deficit/hyperactivity disorder (ADHD) appears to affect development of the brain’s... read more News | Radiation Therapy | August 15, 2019 First Patient Enrolled in World's Largest Brain Cancer Clinical Trial Henry Ford Cancer Institute is first-in-the-world to enroll a glioblastoma patient in the GBM AGILE Trial (Adaptive... read more Related Content News | Cardiovascular Ultrasound | August 07, 2019 Contrast Use in First Transthoracic Echocardiogram for Heart Failure Reduces Repeat Testing Heart failure is the fourth most common cause for all admission to U.S. hospitals, and it is the most common reason for... read more News | Mammography | August 14, 2019 Imago Systems Announces Collaboration With Mayo Clinic for Breast Imaging Image visualization company Imago Systems announced it has signed a know-how license with Mayo Clinic. The multi-year... read more Sponsored Content | Case Study | Radiation Dose Management | August 13, 2019 The Challenge of Pediatric Radiation Dose Management Radiation dose management is central to child patient safety. Medical imaging plays an increasing role in the accurate... read more center_img News | Artificial Intelligence | August 13, 2019 Artificial Intelligence Could Yield More Accurate Breast Cancer Diagnoses University of California Los Angeles (UCLA) researchers have developed an artificial intelligence (AI) system that… read more The CT scanner might not come with protocols that are adequate for each hospital situation, so at Phoenix Children’s Hospital they designed their own protocols, said Dianna Bardo, M.D., director of body MR and co-director of the 3D Innovation Lab at Phoenix Children’s. 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 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. Escape will cancel and close the window.TextColorWhiteBlackRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentBackgroundColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentTransparentWindowColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyTransparentSemi-TransparentOpaqueFont Size50%75%100%125%150%175%200%300%400%Text Edge StyleNoneRaisedDepressedUniformDropshadowFont FamilyProportional Sans-SerifMonospace Sans-SerifProportional SerifMonospace SerifCasualScriptSmall CapsReset restore all settings to the default valuesDoneClose Modal DialogEnd of dialog window.Close Modal DialogThis is a modal window. This modal can be closed by pressing the Escape key or activating the close button. Images of regions of interest (colored lines) in the white matter skeleton representation. Data from left and right anterior thalamic radiation (ATR) were averaged. Image courtesy of C. Bouziane et al. Video 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. Escape will cancel and close the window.TextColorWhiteBlackRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentBackgroundColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentTransparentWindowColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyTransparentSemi-TransparentOpaqueFont Size50%75%100%125%150%175%200%300%400%Text Edge StyleNoneRaisedDepressedUniformDropshadowFont FamilyProportional Sans-SerifMonospace Sans-SerifProportional SerifMonospace SerifCasualScriptSmall CapsReset restore all settings to the default valuesDoneClose Modal DialogEnd of dialog window.Close Modal DialogThis is a modal window. This modal can be closed by pressing the Escape key or activating the close button. 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 Feature | April 24, 2012 Researchers Find Little Cancer Risk From CT Scans in Medicare Population last_img read more