首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
CT Scans and Lung Cancer Small or slow-growing nodules (小结节) discovered on a lung scan are unlikely to develop into tumors
CT Scans and Lung Cancer Small or slow-growing nodules (小结节) discovered on a lung scan are unlikely to develop into tumors
admin
2011-01-10
36
问题
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 aggressive testing for lung cancer. They could also help patients avoid unnecessarily aggressive and potentially harmful testing when lesions (损伤) are found.
Lung cancer, the biggest cancer killer in the United States and globally, is often not diagnosed until it has spread. It kills 159,000 people a year in the United States alone.
The work is part of a larger effort to develop guidelines to help doctors decide what to do when such growths, often discovered by accident, appear in a scan.
High-tech (高技术的) X-rays called CT scans can detect tumors -- but they see all sorts of other blobs (糊涂的一团) that are not tumors, and often the only way to tell the difference is to take a biopsy (活检), a dangerous procedure.
At the moment, routine lung cancer screening is considered impractical because of its high cost and because too many healthy people are called back for further testing.
Good guidelines could help make lung cancer screening practical, Dr. Rob van Klaveren of the Erasmus Medical Center in Rotterdam, the Netherlands, who led the new study, said in a telephone inter view.
The team looked at 7,557 people at high risk for lung cancer because they were current and former smokers. All received multidetector (多层螺旋) CT scans that measured the size of any suspicious-looking nodules.
Volunteers who had nodules over 9.7 mm in width, or had growths of 4.6 mm that grew fast enough to more than double in volume every 400 days, were sent for further testing. Of the 196 people who fell into that category, 70 were found to have lung cancer; 10 additional cases were found years later.
But of the 7,361 who tested negative during screening, only 20 lung cancer cases later developed.
In a second round of screening, done one year after the first’, 1.8 percent were sent to the doctor because they had a nodule that was large or fast-growing. More than half turned out to have lung cancer.
The result means that if the screening test says you don’t have lung cancer, you probably don’t, the researchers said. "The chances of finding lung cancer one and two years after a negative first-round test were 1 in 1,000 and 3 in 1,000 respectively," they concluded.
The new study indicates that in case of small or slow-growing lung nodules
选项
A、you cannot be too careful.
B、cancer is just a matter of time.
C、a biopsy is unnecessary.
D、more aggressive testing is a must.
答案
C
解析
短文第一段提到“肺部扫描发现的小的和扩散缓慢的小结节在两年内发展为肿瘤的可能性很小”,而第五段又提到活检是很危险的,由此判断没必要采用活检治疗,故选C。
转载请注明原文地址:https://kaotiyun.com/show/f4md777K
本试题收录于:
职称英语卫生类A级题库职称英语分类
0
职称英语卫生类A级
职称英语
相关试题推荐
ClarethinkstheirfatherwillbepleasedbyTom’snews.Clarethinksitisabadideatotakeafriend’sadvice.
A、Contactyourdoctorifyouwishtocontinueusingthismedicineafteroneweek.B、Doctorscanonlysupplyenoughmedicinefor
Youcannotdrivehereatthemoment.
Ifyoueatinarestaurant,thispersonbringsyourfoodtoyou.w.______
TheUSspendstwiceasmuchonhealthcareasotherrichcountries.TheUSistheplacewherepeoplegetthebesthealthcare.
EconomicReforminChinaMoreUSsinologistshaveexpressedconfidenceinChina’seconomicreformandtheprospectsforChina
ListeningDeviceProvidesLandslideEarlyWarningAdevicethatprovidesearlywarningofalandslidebymonitoringvibratio
Jackisadiligentstudent..
Wetriedtorestrictourconversationtoargumentsrelevanttothetopic.
Thetwobankshaveannouncedplanstomergenextyear.
随机试题
联系实际分析电子商务的特点及实现过程。
Nowadays,isitpossibletotellaperson’sclassjustbylookingathim?Physicaldetails【B1】______tellusabouthealth,diet
腰椎间盘突出症时,下列哪项阳性体征最易出现()
频繁剧烈呕吐可引起()
嘱患者服药时,应避免接触牙齿的药物是
下列句子中,加横线的词在句中的用意与现代汉语意义相同的是()。
2016年11月15,李克强总理主持召开国务院常务会议,通过了根据《中华人民共和国国民经济和社会发展第十三个五年规划纲要》制定的()三个补“短板”的规划。
中国的专利申请平均每年以48%的速度增长。中国的专利实施只占专利总量的20%~30%,与国外达80%的实施率相比,专利差距很大。在中国专利申报总量中只有15%来自于企业,而发达国家的专利申请80%来自于企业。这段话支持了这样一种观点,即:
国家权力是人民的,国家权力是为人民服务的,即一切权力为民所有,一切权力为民所用,因此,权力运行必须受到有效制约和监督。权力制约的要求体现为
TheJusticeDepartmenthasbegunaninvestigationintowhethertherecruitingpracticesofsomeofthelargesttechnologycompan
最新回复
(
0
)