当前位置： SCI文献检索 > MEDICINE期刊下所有文献 > Improved detectability of thromboses of the lower limb using low kilovoltage computed tomography.

Improved detectability of thromboses of the lower limb using low kilovoltage computed tomography.

Abstract：

:To determine the utility of low kilovoltage computed tomographic venography (CTV) for the detection of deep venous thrombus in the lower limbs.Twenty-one thrombi in 19 enrolled patients were investigated in this retrospective study. Patients were initially scanned using CTV at 100 kVp, at the femur level, followed by an immediate switch to 80 kVp. We assessed the CT values of thrombi and veins and performed subjective evaluation for detecting thrombi using a 5-point scoring system: 1, unable to evaluate due to noise or artifacts; 2, equivocal venous thrombus; 3, possible venous thrombus; 4, probable venous thrombus; and 5, definite venous thrombus.Venous density on 100-kVp images (mean ± SD [standard deviation]: 122 ± 23 HU, 95% confidence interval [CI]: 111-133 Hounsfield unit [HU]) was significantly lower than that on 80-kVp images (136 ± 24 HU, 95% CI: 125-147 HU, P < .001). There was no significant difference in thrombi between 100-kVp images (55 ± 14 HU, 95% CI: 49-61 HU) and 80-kVp images (57 ± 16, 95% CI: 50-64 HU, P = .168). The thrombus to vein ratio on 100-kVp images (0.47 ± 0.20, 95% CI: 0.39-0.56) was significantly higher than that on 80-kVp images (0.44 ± 0.16, 95% CI: 0.37-0.51, P = .048). The mean 5-point score was significantly higher on the 80-kVp images (4.76) than on the 100-kVp images (4.45, P = .016).Lower kilovoltage CTV significantly improved thrombotic to venous contrasts in the lower limbs.

journal_name

Medicine (Baltimore)

journal_title

Medicine

authors

Sasaki T,Fujimoto Y,Ishitoya S,Nabaa B,Watanabe N,Yamaki T,Takahashi K

doi

10.1097/MD.0000000000009775

subject

Has Abstract

pub_date

2018-02-01 00:00:00

pages

e9775

issue

6

eissn

0025-7974

issn

1536-5964

pii

00005792-201802090-00011

journal_volume

97

pub_type

杂志文章

相关文献

MEDICINE文献大全