黄色网址免费看_精品一区二区免费视频视频_欧美69精品久久久久久不卡_污网站在线看_欧美阿v高清资源在线_男人日女人视频网站

Chinese AI helps target head and neck tumors

Source: Xinhua| 2019-04-04 22:21:44|Editor: Li Xia
Video PlayerClose

GUANGZHOU, April 4 (Xinhua) -- Chinese researchers have developed an artificial intelligence (AI) medical tool that can help doctors target head and neck tumor cells faster and more accurately, according to an article published in the international journal Radiology.

Nasopharyngeal carcinoma is cancer that starts in the nasopharynx, which is the upper part of the pharynx behind the nose. Symptoms include lumps in the neck, nasal congestion, headache and hearing loss. About 70 percent of patients were in the later stages when they were diagnosed.

Due to the organ structure and its location in the human body, surgery is always difficult, and radiation therapy is the most common form of treatment.

Radiation, delivered by a linear accelerator, can kill tumor cells but has to pass through about 40 vital organs including the brainstem and eyeballs before reaching the nasopharynx.

"Insufficient radiation exposure may cause cancer recurrence, while excessive exposure may result in brain damage, hearing loss and other side effects," said first author of the article Lin Li, a researcher with the Sun Yat-sen University Cancer Center in Guangzhou.

Accuracy in tumor delineation on diagnostic images is key to radiation therapy. However, manual delineation is labor intensive and highly variable among doctors.

"Generally it will take a senior doctor two to three hours to target the tumor volume on a CT or MRI, but for inexperienced doctors, it will take more than six hours," said lead researcher Sun Ying.

Researchers from Sun Yat-sen University, along with computer experts from the Chinese University of Hong Kong, constructed an AI contouring tool that could automatically delineate the gross tumor volume on patient's MRI data.

In the study, researchers collected MRI data sets covering the nasopharynx from 1,021 patients between 2016 and 2017 and applied the AI tool with a 3D convolutional neural network, a new medical image segmentation technique. The AI was trained to automatically delineate the tumor volume with images in 818 patients and were defined by the consensus of two human experts.

In a competition with eight qualified doctors from renowned hospitals, the AI contouring accuracy reached 79 percent with 203 patients, taking 20 to 50 minutes per case, outperforming the accuracy of human competitors.

To further explore the clinical value of the research, two months after the competition, the eight doctors were asked to correct the AI-only automated contouring results, which is a process called AI assisted contouring. The result showed that it improved manual tumor contouring accuracy by 5 percent.

Reviewers of the journal Radiology were impressed by the sample size used in the paper, and commented that such an AI contouring tool for tumor targeting was "rare and challenging."

The AI contouring tool can help inexperienced doctors reach expert level, raising their work efficiency, which could have a positive impact on tumor control and patient survival, said Sun.

The AI tool will be put into clinical test in more places, Sun said.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001379506991
主站蜘蛛池模板: 国产大学生粉嫩无套流白浆|老司机久久99久久精品播放免费|日本国产三级|久久久久久久久久久久久久久久久久=av|欧美日本精品|涩涩91 | 国精产品W灬源码1688伊在线|在线观看肉片=aV网站免费|黄色生活毛片|免费看=av网页|亚洲色欧美国产综合|国产青青操 | 国产一二区在线观看|黄在线免费|欧美大片www|无码h片在线观看网站|亚洲图区综合网|伊人久久亚洲 成人一区二区三区免费视频|日本=a=a=a=a片毛片免费观蜜桃|在线观看亚洲欧美|日本一夲道无码不卡免费视频|穿乳环蒂环上锁调教老师|国产成人综合一区二区三区 | 啊灬啊灬啊灬快高潮视频|国语自产少妇精品视频蜜桃|欧美专区一区|人人草人人爱|一级毛片在线观|欧美国产日韩另类视频区 | 搡的我好爽视频免费观看野战|一级黄色国产视频|日本理伦片午夜理伦片|北条麻妃国产九九九精品小说|亚洲97色|亚洲人成伊人成综合无码 | 免费无码黄网站在线看|九九在线精品视频|h黄动漫免费网站|成人小说亚洲一区二区三区|极品老师腿张开粉嫩小泬|婷婷开心中文字幕 | 中国极品少妇xxxxx小艳|久久国产日韩|九七=av|欧美一级淫片免费看|少妇搡BBBB搡BBBB毛多多|无码人妻一区二区三区巨免费 | 激情小说亚洲色图|我要干成人网|久久国产免费看|最新国产成人|久久免费影视|黄瓜视频网址 | 亚洲无人区码二码三码区别|亚洲无砖无线码|老师的朋友5在线|国产精品美女黄网|欧美一级做=a爰片免费视频|www.高潮原创=av | 天堂在线.www天堂在线资源|日日日综合网|#NAME?|国产午夜影视大全免费观看|黄色91网站|91重囗 | 青青91视频|青娱乐极品视觉盛宴国产视频|宅男在线观看免费高清网站|午夜伦理一区|最新国产在线观看|黄色大片www | 啊灬啊灬啊灬快高潮视频|国语自产少妇精品视频蜜桃|欧美专区一区|人人草人人爱|一级毛片在线观|欧美国产日韩另类视频区 | 久久国产毛片|成人午夜免费网站|久久久=av影视|男同性恋视频在线观看|欧美一级日韩一级|久草免费在线播放 | #NAME?|青青草在线视频免费观看|久草免费福利|日日噜噜夜夜狠狠爱视频免费樱桃|国产精品一级=a级理论片在线观看|亚洲狠狠色综合蜜桃 | 欧美区二区三区|大美女一区二区三区|午夜国产精品影院在线观看|日本丰满人妻久久久久久久|99视频精选|丰满人妻熟妇乱又伦精品劲 | 伊人偷拍视频|久久久久99精品成人片三人毛片|午夜影院中文字幕|J=aP=aNESE国产中文在线观看|久久国产精品福利二区三区|yy8090新视觉午夜毛片 | yell视频在线观看免费|www.三级影片.com|午夜啪啪片|色爱亚洲|顶级欧美熟妇高潮xxxxx|紧缚调教一区二区三区视频 | 亚洲=aV永久综合在线观看另类|#NAME?|日本亚洲精品成人欧美一区|久草精品在线播放|国产亚洲综合视频|亚洲精彩视频在线 | 韩国日本美国欧洲=aⅴ|91久久国产露脸精品国产闺蜜|国产热99|欧美肥老太交性视频免费|国产艳妇高清色视频在线观看|一级绝黄| 亚洲日韩精品欧美一区二区一|蜜桃视频在线视频|久久亚洲一区二区三区四区五区|国产女性无套免费看网站|97色久水蜜桃|日本中文字幕=a∨在线观看 | 国产7页|日韩不卡在线播放|国产精品丝袜美女|亚洲人成无码WWW久久久|狼色精品人妻在线视频|亚洲国产一区二区久久久777 | 国产一区二区在线精品|久久久蜜桃=av|在线观看超碰|国内成人精品|髙清视频播放在线观看|中文国产字幕在线不卡 | 麻豆91精品一区二区|精品第一区|国产视频自拍一区|日韩=av无码国产精品|日本高清中文字幕在线|保守人妻被领导征服身体 | 天天干天天插伊人网|久久久久久一级片|粉嫩久久久久久久极品|人人插人人搞|五月丁香六月综合缴清无码|国产精华=aV午夜在线 | 国产同事露脸对白在线视频|91在线91|国产免费看=av大片的网站吃奶|精品国产鲁一鲁一区二区张丽|国产对白久久|5lⅴ精品国产91久久 | 日本一区二区三区四区视频|亚洲一区黄色|久久综合狠狠综合久久狠狠色综合|法国性xxxxx极品|久久无码=aV中文出轨人妻|无码少妇一区二区三区=av | 国产=a级一区二区|免费观看=av福利片|欧美一二三区精品|一本到无码=aV专区无码|好爽...又高潮了毛片|精品人人搡人妻人人玩=a片 | 女教师大荫蒂毛茸茸|无码免费中文字幕视频|CHINESE少妇激情|久久精品国产亚洲=aV麻豆长发|亚洲第一页夜|欧美三级网站在线观看 | 在线视频免费观看爽爽爽|午夜视讯|国产传媒在线视频|综合国产一区|#NAME?|777午夜精品 | 99视屏|亚洲精品日韩专区|欧美一级国产|久久丫不卡人妻内射中出|欧美日韩另类综合|亚洲色无码=a片中文字幕 | 白浆视频在线观看|亚洲国产欧美一区二区三区|一二三四在线观看免费高清视频|国产又黄又爽又刺激的免费网址|免费观看成人毛片=a片入口少|美女亚洲网 | 国产精品久久久久久久小唯西川|日韩免费高清视频|亚洲另类自拍|黑森林精品=aV导航|日韩精品专区=av无码|高清精品久久 | 成人久久18免费网站图片|一本久道久久综合婷婷五月|色窝窝免费一区二区三区|国产无遮挡在线观看免费=aV|freexxx性麻豆hd16|国产精品久久久久久久网 | 98色婷婷在线|国产精品最新视频|欧美日本国产综合一区|日本三级精品|日本按摩高潮=a级中文片|久啪视频 | 欧美日本国产在线观看|日本一区二区三区国色天香|校园春色~综合网|欧美一级色|91精品在线观|日韩欧美高清一区二区 | www.久草.com|日本不卡高清|丁香花免费完整高清观看|国产一级爽快片在线观看|亚洲多毛女人厕所小便|成人在线视频观看 | 精品日本一区二区三区在线观看|日日操夜夜摸|国产成人无码网站m3u8|欧美性猛交xx|亚洲自拍偷拍一区二区|国产免费无码成人=a片在线观看 | 奇米综合四色77777久久|精品精品国产自在97香蕉|啦啦啦在线观看|成人无码区免费=a片久久鸭软件|最近中文字幕完整视频高清1|国产精品视频免费播放 | 1000部爽爽视频免费|亚欧乱色国产精品免费视频|无人在线视频观看免费|68日本xxxxxxxxx|bbbbbbbbb免费毛片视频|激情综合丁香 | 九九影院最新理论片|#NAME?|国产精品=a久久久久|高清国产亚洲精品自在久久|xnxx在线观看|性高潮一级片 老汉=av免费一区二区三区|国产又大又黑又粗免费视频|黄大片日本一级在线=a|成年人黄色毛片|亚洲精品一区二区三区免|国产精品91大屁股白浆一区二区 无码国产精品一区二区VR|欧美精品亚洲精品日韩专区v=a|欧美xxx久久|黄在线观看免费|国产草草草|7777kkk亚洲综合欧美网站 五月天色中色|蜜桃精品视频在线|日本特级=aⅴ一级毛片|二区三区4区5区6区人妻|成人毛片软件|#NAME? | 国产人妖在线|国产午夜福利在线播放|亚洲国产成人精品久久久国产成人|高柳の肉嫁动漫在线播放|日韩久久精品一区二区三区|精品偷自拍另类在线观看 |