Comparison of angular and combined automatic tube current modulation techniques with constant tube current CT of the abdomen and pelvis

被引：161

作者：

Rizzo, S

Kalra, M

Schmidt, B

Dalal, T

Suess, C

Flohr, T

Blake, M

Saini, S

机构：

[1] Emory Univ Hosp, Dept Radiol, Atlanta, GA 30322 USA

[2] Massachusetts Gen Hosp, Dept Radiol, Boston, MA 02114 USA

[3] Siemens Med Solut, Forchheim, Germany

来源：

AMERICAN JOURNAL OF ROENTGENOLOGY | 2006年 / 186卷 / 03期

关键词：

abdomen; CT technique; pelvis; radiation dose; tube current modulation;

D O I：

10.2214/AJR.04.1513

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：

OBJECTIVE. The objective of our study was to compare image quality and radiation dose associated with abdominopelvic CT using combined modulation, angular modulation, and constant tube current. CONCLUSION. Compared with using a constant tube current to scan the abdomen and pelvis, the use of a combined modulation technique results in a substantial reduction (42-44%) in radiation dose with acceptable image noise and diagnostic acceptability.

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收藏

页码：673 / 679

页数：7

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