Lung: Feasibility of a method for changing tube current during low-dose helical CT

被引：12

作者：

Itoh, S

Ikeda, M

Mori, Y

Suzuki, K

Sawaki, A

Iwano, S

Satake, H

Arahata, S

Isomura, T

Ozaki, M

Ishigaki, T

机构：

[1] Nagoya Univ, Sch Med, Dept Tech Radiol, Showa Ku, Nagoya, Aichi 4668560, Japan

[2] Nagoya Univ, Sch Med, Dept Med Informat & Med Records, Showa Ku, Nagoya, Aichi 4668560, Japan

[3] Nagoya Univ, Sch Med, Dept Radiol, Showa Ku, Nagoya, Aichi 4668560, Japan

[4] Komaki City Hosp, Dept Radiol, Komaki, Japan

[5] Hokushin Gen Hosp, Dept Radiol, Nakano, Japan

来源：

RADIOLOGY | 2002年 / 224卷 / 03期

关键词：

cancer screening; computed tomography (CT); helical; image quality; lung neoplasms; CT; diagnosis;

D O I：

10.1148/radiol.2243010874

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

A method for changing the tube current during helical scanning was applied to low-dose computed tomography (CT) in the lung. The changing method resulted in significant equalization of image noise in various lung sections compared with that at scanning with constant tube current. Detectability of nodules was equivalent between 60 mA and the changing method, whereas degradation occurred at 20 mA. This method seems feasible for the low-dose CT of lung cancer screening. (C) RSNA, 2002.

引用

页码：905 / 912

页数：8

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