Low-dose helical computed tomography (CT) in the perioperative workup of adolescent idiopathic scoliosis

被引:60
作者
Abul-Kasim, Kasim [1 ]
Overgaard, Angelica [1 ]
Maly, Pavel [1 ]
Ohlin, Acke [2 ]
Gunnarsson, Mikael [3 ]
Sundgren, Pia C. [4 ]
机构
[1] Lund Univ, Malmo Univ Hosp, Neuroradiol Sect, Dept Radiol, Malmo 20502, Sweden
[2] Lund Univ, Malmo Univ Hosp, Dept Orthopaed Surg, Malmo 20502, Sweden
[3] Lund Univ, Malmo Univ Hosp, Dept Radiat Phys, Malmo 20502, Sweden
[4] Univ Michigan Hlth Syst, Dept Radiol, Div Neuroradiol, Ann Arbor, MI USA
关键词
Spine CT; Effective dose; Image quality; Vertebral rotation; Hardware status; MEASURE VERTEBRAL ROTATION; MULTIDETECTOR ROW CT; IMAGING EVALUATION; SCANS; INTEROBSERVER; INTRAOBSERVER; AGREEMENT; EXPOSURE; PATIENT;
D O I
10.1007/s00330-008-1178-4
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
The study aims were to estimate the radiation dose in patients examined with low dose spine CT and to compare it with that received by patients undergoing standard CT for trauma of the same region, as well as to evaluate the impact of dose reduction on image quality. Radiation doses in 113 consecutive low dose spine CTs were compared with those in 127 CTs for trauma. The inter- and intraobserver agreement in measurements of pedicular width, and vertebral rotation, measurements of signal-to-noise ratio and assessment of hardware status were the indicators in the evaluation of image quality. The effective dose of the low dose spine CT (0.37 mSv) was 20 times lower than that of a standard CT for trauma (13.09 mSv). This dose reduction conveyed no impact on image quality. This low dose spine CT protocol allows detailed evaluation that is necessary for preoperative planning and postoperative evaluation.
引用
收藏
页码:610 / 618
页数:9
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