CT检查是医院常用的一种影像检查,很多人在身体不适或体检时都会接触到,但其潜在风险却日益引发学术界的关注。 加州大学旧金山分校的一项最新研究显示,CT扫描产生的辐射风险可能被系统性低估,每年约有5%的癌症病例可能与之相关。 研究人员指出,在...
"Ours is the first population-based study to capture data on every CT scan to an individual during childhood or young adulthood and then measure the subsequent cancer risk." Despite the elevation in cancer risk, these two malignancies are relatively rare and the actual number of additional cases...
CT scans in cancer fears New evidence of a "substantial cancer risk" from CT scans is reported in the Lancet Oncology in October. At Columbia University researchers have calculated that the radiation produced from an annual scan, risks a one in fifty chance of death. "The risks of full ...
A CT scan uses x-rays to create pictures of cross-sections of the body, including the brain, chest, spine and abdomen. Previous research has shown children with a history of frequent CT scans or X-rays may be at an increased risk for cancer due to radiation exposure. A June 2012 study...
Radiation During a CT Scan CT scans use X-rays, which are a type of radiation called ionizing radiation. It can damage theDNAin your cells and raise the chance that they'll turn cancerous. These scans expose you to more radiation than other imaging tests, like X-rays and mammograms. For...
CT Scan for Lung Cancer Can Benefit Most at Risk; Annual Test May Help Smokers and Former Smokers 55 to 74Byline: Margaret Johnson In 1984, lung cancer became the No. 1 cancer killer of both men and...Johnson, Margaret
Belly and pelvis: 20 mSv, equal to about 7 years of background radiation Head: 4 mSv, equal to about 16 months of background radiation What’s the Cancer Risk? For most people, a CT scan doesn’t seem to boost the risk for cancer in a major way. Generally, the medical benefit you...
10. Huang WY, Muo CH, Lin CY, Jen YM, Yang MH, Lin JC, Sung FC, Kao CH: Paediatric head CT scan and subsequent risk of malignancy and benign brain tumour: a nation-wide population-based cohort study. Br J Cancer 2014, 110(9):2354-2360. ...
CT Scans and Lung Cancer Small or slow-growing nodules (小结节)discovered on a lung scan are unlikely to develop into tumors over the next two years, researchers reported on Wednesday. The findings reported in the New England Journal of Medicine, could help doctors decide when to do more agg...
Though, since its introduction in the 1970’s computed tomography has been widely used for diagnostic purposes, it is now being used for preventive screenings as well. This is especially true for patients with a high risk of cancer and for cancer survivors....