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Are 3D mammograms better than standard imaging? A diverse study aims to find out_我的网站

A | Are 3D mammograms better than standard 2D imaging for catching advanced cancers?A clinical trial is recruiting thousands of volunteers — including a large number of Black women who face disparities in breast cancer death rates — to try to find out.People like Carole Stovall, a psychologist in Washington, D.C., have signed up for the study to help answer the question.“We all need a mammogram anyway, so why not do it with a study that allows the scientists to understand more and move closer to finding better treatments and ways of maybe even preventing it?” Stovall said.The underrepresentation of women and minorities in research is a long-simmering issue affecting health problems including Alzheimer’s disease, stroke and COVID-19. Trials without diversity lead to gaps in understanding of how new treatments work for all people. “Until we get more Black women into clinical trials, we can’t change the science. And we need better science for Black bodies,” said Ricki Fairley, a breast cancer survivor and advocate who is working on the issue.Black women are 40% more likely to die from breast cancer than white women and tend to be diagnosed younger. But it’s not clear whether 3D mammography is better for them, said Dr. Worta McCaskill-Stevens of the National Cancer Institute.“Are there populations for whom this might be important to have early diagnosis?" asked McCaskill-Stevens. "Or is it harmful,” causing too many false alarms or unneeded follow-up tests and treatments?McCaskill-Stevens, who is Black, leads NCI’s efforts to boost access to cancer research in minority and rural communities. She has joined the study herself.The newer 3D technique has been around for a decade, but there’s never been conclusive evidence that it's better than 2D at detecting advanced cancers. The screening technique combines multiple pictures of the breast taken from different angles to create a 3D-like image. Both 3D and 2D mammograms compress the breast and use low doses of radiation.Prior studies suggest that 3D finds more cancers than 2D, but catching more cancers doesn’t necessarily mean more lives saved. Some cancers missed by standard screening may not progress or need treatment. Previous studies did not randomly assign patients to a screening method, the gold standard for research.The notion “that if it’s new, it’s shiny, then it’s better,” isn’t necessarily true, McCaskill-Stevens said. “Until we have the evidence to support that, then we need well-designed randomized trials.”The trial has enrolled nearly 93,000 women so far with a goal of 128,000. The NCI-funded study is now running in Canada, South Korea, Peru, Argentina, Italy and 32 U.S. states. A site in Thailand will soon begin enrolling patients.“We added more international sites to enhance the trial’s diversity, particularly for Hispanic and Asian women,” said Dr. Etta Pisano, who leads the study. Overall, 42% of participants are Hispanic. As recruiting continues, enrolling Black women and other women of color will “absolutely” continue as a priority, Pisano said.Participants are randomly assigned to either 2D or 3D mammograms and are followed for several years. The number of advanced cancers detected by the two methods will be compared.At the U.S. study sites, 21% of study participants are Black women — that's higher than a typical cancer treatment study, in which 9% of participants are Black, McCaskill-Stevens said.The University of North Carolina has signed up more Black women than any other study site. Nearly a quarter of the nearly 3,000 women enrolled at UNC’s two locations are Black.“Women in North Carolina want to take part in something that’s bigger than them,” said Dr. Cherie Kuzmiak, who leads the UNC arm of the study. “They want this active role in helping determine the future of health care for women.”In Washington, D.C., word of mouth has led to successful recruiting. A chance encounter at her hair salon persuaded Stovall to join the research. While waiting for a hair appointment, she met Georgetown University cancer researcher Lucile Adams-Campbell. The two, both Black, started chatting.“She explained how important it was to get women of color into the program,” said Stovall, who jumped at the chance to catch up on her mammograms after the COVID-19 pandemic delayed screening for her and thousands of others.For Stovall, there was a personal reason to join the research. Her sister recently completed treatment for triple negative breast cancer, an aggressive type that affects Black women at higher rates than white women. Women ages 45 to 74 without a personal history of breast cancer are eligible for the study, which launched in 2017. Many women also are providing blood and cheek swab samples for a database that will be mined for insights.“It’s a dream that people had since the beginning of screening that we wouldn’t fit everybody into the same box,” Pisano said. The study's findings could “reduce disparities if we’re successful, assuming people have access to care.”Stovall, 72, had a brief scare when her mammogram, the traditional 2D type, showed something suspicious. A biopsy ruled out cancer.“I was extremely relieved,” Stovall said. “Everybody I know has heard from me about the need for them to go get a mammogram.”___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.。 8月19日，西部Token创新发展论坛在甘肃庆阳举办。中国移动云公司副总经理刘军卫发表题为《中国移动MoMA推动Token中心规模落地》的主旨演讲，并正式发布移动云（西部）Token中心。该中心是中国移动在西部地区布局的首个Token规模化运营平台，标志着西部算力资源正式融入全国智能经济循环体系。 云智融合：构筑AI算力服务新底座 在主旨演讲中，刘军卫系统阐述了移动云面向AI场景深化与Token规模化应用的破局路径与实践。他表示，2026年是Token从试点转向规模化应用的关键转折期，应用场景不断深入，从问答助手扩展至内容生产、数据分析、编程辅助及企业智能体等多元场景。从产业实践数据来看，企业Token实际消耗量远超行业预期：2025年全年消耗量达IDC预测值的3.4倍，2026年上半年进一步攀升至5.4倍，且增速仍在加快。面对规模化带来的成本、算力、安全三重挑战，刘军卫表示，移动云将聚焦“由云向智”战略方向，依托AIDC、AICN等算网融合领先优势，着力打造算网一体、云智融合、安全可信、敏捷高效的AI云算服务（AICC），构建算网大脑、MoMA、安全可信三大核心支柱，打造“中国移动Token发生器”，破除产业瓶颈，赋能智能经济发展。加速布局新型智算中心，打造高标准算力载体。中国移动AIDC布局覆盖全部国家枢纽节点，在哈尔滨、呼和浩特、中卫等地打造GW级标杆园区、布局百MW园区超30个，形成规模、技术、网络全方位领跑的算力底座，加快推进算电协同发展，锻造AIDC交付能力体系。打通全国一体化算力网络，构建低时延算力互通体系。通过打造全球最大规模的G-SRv6智能化互联网及400G OTN骨干网，构筑1-5-20毫秒三级时延圈，实现毫秒级接入，有力支撑“1+M+N”国家算力互联互通节点建设。依托算网大脑，实现算力最优调度。算网大脑统一纳管自有算力与第三方社会算力，实现高效纳管、互联互通与智能协同，日调度次数达2.1亿次；做强推理引擎，适配国产GPU卡，架构、引擎、内核三层优化，以更优成本达成头部一流处理能力。 MoMA为智能应用推荐最优模型。移动云打造MoMA，汇聚自研、开源、商业闭源等各类主流模型，还有GLM5、MiniMax M3、Kimi-K3等最新旗舰模型0Day首发，降低模型选择与调用门槛，为智能应用提供高效匹配。安全方面，芯片级机密计算，构建全链路Token安全体系。以硬件级可信执行环境为安全底座，融合机密计算、国产密码等技术，打造全链路安全可信（AITC），全面满足政务、医疗、科研、金融等高安全场景。

B | 西部解法：落地绿色“Token工厂” 当前，“东数西算”工程持续纵深推进，全国一体化算力网络八大国家枢纽节点建设取得显著成效。西部四大算力枢纽依托清洁能源禀赋与区位优势，不断夯实非实时算力保障基地定位，实现算力规模扩张与绿色低碳发展协同并进。本次发布的移动云（西部）Token中心，立足西部绿色算力资源优势，打造绿色“Token工厂”，推进Token服务常态化运营，面向工业制造、高等院校、AI短剧等重点行业场景，搭建全网协同、规范统一、高效运转的AI Token商业化运营体系。作为中国移动在西部落地的首个Token中心，其核心价值聚焦于算力汇聚与Token运营两大维度。

C | 在算力汇聚层面，统筹整合区域多方算力资源，实现统一调度与规范化管理，提升算力资源运营使用效率，推动国家算力一体化战略在西部地区落地生根；在Token运营层面，聚合算力、大模型、行业应用多方生态资源，打造区域性统一Token工厂与运营枢纽，联动Token专项扶持政策，既助力广大企业加速数智化转型，也为大众智能化生活提供底层能力支撑。目前，移动云Token中心已赋能多行业场景应用：政务侧支撑23个省级政务云、信创政务云与智慧政务办公；工业侧赋能天工工业互联网平台，覆盖钢铁、电子智造场景；教育侧支撑52万所学校标准化考场与机考；医疗侧落地4个省级医保影像云，赋能医保影像云、个人医保云等场景。