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原标题：广汕高铁增江特大桥成功合龙，即将进入全线铺轨阶段9月13日下午，广汕高铁增江特大桥成功合龙，标志着广汕高铁全线重难点工程建设取得了又一个突破性进展。大桥合龙后，设计时速350公里的广汕高铁建设将进入全线轨道铺设阶段。         This photo taken on May 28, 2026 shows Yuan Gang, a radiologist with the 35th Chinese medical team in Zanzibar, discussing MRI images with local doctors at Mnazi Mmoja Hospital in Zanzibar, Tanzania. (The 35th Chinese medical team in Zanzibar/Handout via Xinhua)In a radiology room at Lumumba Regional Hospital in Tanzania's Zanzibar, a quiet technological shift is reshaping how doctors detect disease, make decisions, and save lives.
On the island, artificial intelligence (AI) systems are helping doctors interpret medical images, while remote consultations connect local physicians with specialists thousands of kilometers away.
Bridging this distance is Yuan Gang, a radiologist with the 35th Chinese medical team in Zanzibar, who combines local imaging, cloud-based AI analysis, and real-time specialist consultations.
For years, Zanzibar's healthcare system has faced challenges in diagnosing complex diseases, particularly because of limited imaging expertise, heavy workloads, and the lack of advanced diagnostic tools, said local physician Haitham Hamudu.
Imaging interpretation, often described as the "eyes" of modern medicine, has been especially constrained by limited expertise, heavy workloads, and a lack of advanced tools, Haitham said.
By linking the hospital's imaging system with the First People's Hospital of Lianyungang in east China's Jiangsu Province, he has introduced a three-layer diagnostic approach, which includes initial reading by local doctors, AI-assisted detection and classification, and quality control through Chinese specialist review.
This hybrid model is enabling doctors in Zanzibar to access the precision and standards of top-tier Chinese hospitals without requiring patients to leave the island.
"Technology is allowing us to overcome distance and resource gaps," Yuan said. "It is not just about solving one case, but about building a system that improves care for many patients."
One of the most striking cases involved a young Zanzibari child suffering from recurrent vomiting and lethargy.
After reviewing the child's Magnetic Resonance Imaging scans, Yuan diagnosed hydrocephalus but found the underlying cause unclear. He immediately initiated a remote consultation with neuroradiology experts in the Chinese city of Lianyungang.
By jointly reviewing the imaging data and clinical records, the team identified the hidden cause, provided a precise diagnosis and treatment recommendations, giving local doctors a clear path forward and the child a renewed chance at recovery.
Beyond individual cases, Yuan has introduced AI-powered imaging tools to improve diagnostic accuracy in Zanzibar.
He said many women have dense breast tissue, making breast cancer harder to detect with conventional mammography. AI-assisted mammography now analyzes images, classifies lesions using the internationally recognized Breast Imaging Reporting and Data System, and helps doctors assess malignancy risk.
In one case, a 42-year-old woman with mild breast pain showed no obvious abnormalities on routine examination. AI, however, detected two hidden nodules and accurately classified their risk, helping doctors avoid unnecessary procedures while ensuring timely follow-up.
Similarly, AI-assisted lung imaging is improving the early detection of pulmonary nodules that are often missed in manual readings.
In one case, a 56-year-old man with a chronic cough was initially diagnosed with inflammation. Yuan's review, supported by AI analysis, identified four small nodules, including one with high-risk features, prompting closer monitoring and potentially preventing the progression of an early tumor.
Beyond diagnosis, Yuan is helping local doctors adopt AI tools, standardized reporting systems, and structured diagnostic methods through hands-on training and case-based teaching, improving diagnostic accuracy while strengthening local capacity.
The AI imaging initiative is part of a broader digital healthcare partnership between China and Tanzania's Zanzibar, Yuan said.
The hospital and its partner institution in Lianyungang have established regular remote multidisciplinary team consultations, bringing together specialists in neurosurgery, oncology, and other disciplines to jointly review complex cases and develop treatment plans.
"I have never seen this kind of consultation before," said local physician Haitham. "So many experts working together, providing practical solutions. It is very inspiring."
Bao Zengtao, leader of the Chinese medical team, said remote consultations not only improve patient care but also enhance the professional capacity of local healthcare workers.
Yuan added that the ultimate goal is to build a sustainable model that can be expanded across Africa, ensuring more patients have access to accurate diagnosis and timely treatment.
    This file photo taken on Oct. 8, 2025 shows Yuan Gang, a radiologist with the 35th Chinese medical team in Zanzibar, talking with a local resident during a community health outreach activity in Zanzibar, Tanzania. (The 35th Chinese medical team in Zanzibar/Handout via Xinhua)
    This file photo taken on Oct. 8, 2025 shows Yuan Gang, a radiologist with the 35th Chinese medical team in Zanzibar, performing an ultrasound examination on a patient at a local health facility during a community health outreach activity in Zanzibar, Tanzania. (The 35th Chinese medical team in Zanzibar/Handout via Xinhua)
。广汕高铁是广东省重点工程之一，起自广州新塘站，终至汕尾站。广汕高铁增江特大桥成功合龙，即将进入全线铺轨阶段。王建国摄由广铁集团广州工程建设指挥部建设管理、中国铁路广州工程局承建的增江特大桥为双塔双索面混凝土斜拉桥，为广汕高铁关键控制性工程。大桥位于广州市增城区石滩镇境内，全长2569.480米，桥梁主跨 260米跨越增江水道，主塔采用高100米H型桥塔。主桥在全世界高速铁路斜拉桥建设中首次采用混凝土梁节段预制胶拼法施工，利用混凝土梁体自重大的特点，克服一般斜拉桥受空气流动性影响产生涡振现象，同时采用大型剪力键，提高梁体拼接缝的抗剪力性能。节段梁拼装通过纵向粗预应力钢棒与粘结胶有效结合，将各节段梁串联成整体而成桥，加大了梁体的刚性，降低了斜拉桥柔性变化特点，提高了高速铁路行车舒适性和安全性。这一创新性技术应用成为国内高速铁路建设的新标杆。

二 | 广汕高铁增江特大桥成功合龙，即将进入全线铺轨阶段。

三 | 王建国摄据广州工程建设指挥部有关负责人介绍，“主桥施工工序繁多，工艺复杂，精度控制要求高，成桥线形不易控制，施工难度高，安全风险大，是一座科技攻关型桥梁。铁路部门于2019年12月专门成立了‘广汕高铁大跨度节段预制拼装混凝土斜拉桥关键技术及智能化研究’重点课题攻关小组，并如期攻克了相关难题。”据悉，主桥节段梁对气温、混凝土质量和浇筑工艺均有严格要求，为确保顺利合龙，广州工程建设指挥部多次组织参建单位开展专题研究，制定增江特大桥合龙施工方案，对施工工艺进行详细分析和优化完善，并选定有利气温时段，最终实现了混凝土一次浇筑成功。广汕高铁联通京广、京港高铁和沿海铁路，是广东省“五纵二横”高速铁路网重要组成部分。广汕高铁建成通车后，广州到汕尾的旅行时间将由目前的2小时压缩到最快40分钟左右。沿线旅客出行将更加方便通畅、舒适便捷，对完善粤港澳大湾区综合交通体系建设，打造广州“1小时经济生活圈”，助推粤东地区加快融入粤港澳大湾区协同发展、促进乡村振兴具有重要意义。采写：南都记者钟丽婷 实习生李露莉 通讯员林群海 柴晶玲返回搜狐，查看更多责任编辑：