Glossary entry

Chinese term or phrase:

low attenuation

English translation:

低衰减

Added to glossary by Yi Cao
Mar 30, 2023 08:32
1 yr ago
16 viewers *
Chinese term

low attenuation

Chinese to English Medical Social Science, Sociology, Ethics, etc. religious belief
A 7mm Low attenuation lesion in Segment VI is too small to characterize, but likely represents a simple cyst

请教 Low attenuation 啥意思、是否是低衰减
Proposed translations (English)
5 +1 低衰减
5 低密度
Change log

Apr 10, 2023 04:02: Yi Cao Created KOG entry

Proposed translations

+1
6 hrs
Selected

低衰减

Introduction to Low Attenuation (低衰减) | 学术写作例句词典

Academic Accelerator
https://academic-accelerator.com › ...
HRP 定义为CCT 图像上具有2 个以上高危特征(低衰减斑块、阳性重塑、餐巾环征、点状钙化)的斑块。 Relationship between Epicardial Adipose Tissue and High-Risk ...

Low Attenuation Plaque 低衰减斑块
https://academic-accelerator.com › ...
方法在一项多中心随机对照试验中,我们探讨了狭窄、不良斑块特征(阳性重塑、低衰减斑块、点状钙化或餐巾环征)的性别差异以及对总、钙化、非钙化和低衰减斑块负荷的 ...

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Note added at 13 hrs (2023-03-30 22:23:40 GMT)
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这一份顶级医学杂志上的用法就是“低衰减”:

上海交通大学学报(医学版) - 上海交通大学医学院
shsmu.edu.cn
https://xuebao.shsmu.edu.cn › article › downloa...
[摘要]目的・探讨通过胸部CT计算得到的低衰减区比例(ratio of low attenuation ... Department of Thoracic Surgery, Ruijin Hospital North, Shanghai Jiao Tong.


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Note added at 13 hrs (2023-03-30 22:27:56 GMT)
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PDF - 中国医学影像技术
cjmit.com
http://www.cjmit.com › reader › download_pdf
Advances in CT-based attenuation correction techniques for PET ... CT 也属于透射扫描,其图像为射线穿过组织的衰减系数图. 像,可以利用CT数据对PET图像进行衰减 ...

åŁ¦æš‡å¿Š\2018\å - 《国际放射医学核医学杂志》
paperopen.com
http://gjfsyxhyxzz.paperopen.com › pdfdow
【摘要】 目的通过与CT 衰减校正方法的比较,探讨超短回波时间(UTE)序列作为脑 ... Comparison of ultrashort echo time-based and CT attenuation correction in ...
Peer comment(s):

agree Lu Zou
7 days
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4 KudoZ points awarded for this answer.
11 hrs

低密度

Low attenuation lesion:低密度病变;低密度灶

密度。胸部增强CT显示,肺动脉干水平的不均质胸腺瘤。箭头所示为肿瘤中多个低密度区中的两个。
Attenuation. Contrast-enhanced chest computed tomography (CT) (soft tissue window) of a heterogeneous thymoma at the level of the pulmonary trunk. Arrows point to two of the many small low attenuation regions within the mass.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131232/

低密度肿块
低密度肿块的英文译词
Low attenuation masses
http://www.scidict.org/items/低密度肿块.html

(1)大块状融合病灶2例:病理结果分别为肝细胞的大块状坏死和聚合的结节样再生。CT平扫相应表现为地图样分布的低密度和高密度区;
1 ) Massive confluent aggregate loci in 2 patients demonstrated low attenuation and high attenuation as geographical patterns on CT scans betore contrast enhancement, respectively.
https://qikan.cqvip.com/Qikan/Article/Detail?id=38024151
(打开链接后请按 “展开更多” 和 MORE 来看全文)

肝内低密度灶是否要紧,主要取决于病变的性质。肝内低密度灶是肝脏CT的一种异常表现,临床上很多疾病在肝脏CT上,都可以表现为肝脏低密度灶。这些病变有些是良性病变,有些是恶性病变;...
https://baike.baidu.com/item/肝低密度灶/49984710#:~:text=肝内低密度灶是肝...

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Note added at 21 hrs (2023-03-31 05:50:42 GMT)
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回答 Asker:
attenuation 的解释是 “衰减”,意思是X光经过一物体后其强度会衰减。经过低密度物体后,其衰减就低。经过高密度物体后,其衰减就高。
low attenuation 的意思是 “使X光衰减低”。Low attenuation lesion 是 “使X光衰减低的病变”,即 “低密度病变”。

X射线穿过物质之后,强度会衰减。前面已经指出,这是因为X射线同物质相互作用时经历各种复杂的物理、化学过程,从而引起各种效应转化了入射线的部分能量。
https://atc.scnu.edu.cn/xrd/BOOK01/Book1-105.htm

Attenuation is the reduction of the intensity of an x-ray beam as it traverses matter. The reduction may be caused by absorption or by deflection (scatter) of photons from the beam and can be affected by different factors such as beam energy and atomic number of the absorber.
https://pubs.rsna.org/doi/10.1148/radiographics.18.1.9460114...

The density of the tissue is in proportion to the attenuation of the x-rays which pass through. Tissues like air and water have little attenuation and are displayed as low densities (dark), whereas bone has high attenuation and is displayed as high density (bright) on CT.
https://case.edu/med/neurology/NR/CT Basics.htm
Note from asker:
我觉得ATTENUATION是衰减的意思 所以应该是低衰减,也就是没有或很少衰减 所以也就是高密度,我是这样的理解
thanks
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Reference comments

17 mins
Reference:

Low attenuation on CT scans was more defined than fat density and less than muscle density, the so-called near water density. - https://pubmed.ncbi.nlm.nih.gov/11045700/
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