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

被引：160
|
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.
引用
收藏
页码：673 / 679
页数：7
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