Comparison of 4 cm Z-axis and 16 cm Z-axis multidetector CT perfusion

被引:51
|
作者
Page, Mark [1 ]
Nandurkar, Dee [1 ]
Crossett, Marcus Peter [1 ]
Stuckey, Stephen L. [1 ]
Lau, Kenneth P. [1 ]
Kenning, Nicholas [1 ]
Troupis, John M. [1 ]
机构
[1] Monash Med Ctr, So Hlth Network, Dept Diagnost Imaging, Clayton, Vic 3168, Australia
关键词
CT; Brain; Infarct; Ischemia; Perfusion; CEREBRAL-ISCHEMIA; BLOOD-VOLUME;
D O I
10.1007/s00330-009-1688-8
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 aim of the study was to compare 4 cm with 16 cm Z-axis coverage in the assessment of brain CT perfusion (CTP) using. 320 slice multidetector CT A retrospective non-randomised review of CTP performed on MD320 CT between September 2008 and January 2009 was undertaken. Two experienced readers reviewed the studies along with the 4 cm and 16 cm Z-axis CTP image data set. The outcome parameters assessed were the extent of the original finding, any additional findings and a change of diagnosis. 14 out of 27 patients were found to have abnormal CTP (mean age 58.1 years, 9 male). The 16 cm Z-axis increased the accuracy of the infarct core in 78% and ischaemic penumbra quantification in 100% of the cases. It also diagnosed additional infarcts in the same vascular territory in 28% of cases and in a different vascular territory in 14%. The increased field of view with MD320 better defines the true extent of the infarct core and ischaemic penumbra. It also identified other areas of infarction that were not identified on the 4 cm Z-axis.
引用
收藏
页码:1508 / 1514
页数:7
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