CDU

WL Wanli Liu
LH Lianxiang He
WZ Wenjing Zeng
LY Liqing Yue
JW Jie Wei
SZ Shuangshuang Zeng
XW Xiang Wang
ZG Zhicheng Gong
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CDU was performed within seven days after D-dimer test by an experienced CDU technician using Philips Epiq 5 and a high-resolution linear array transducer (9–13 MHz). The criteria for the diagnosis of venous thrombosis were as follows [2628]: the lumen cannot be compressed despite firm compression with the transducer probe; defective blood flow signal in the lumen; solid return in the lumen sound; disappearance or weakening of the spent response; phase change in the loss of blood spectrum; disappearance or weakening of the blood flow in the distal limb by squeezing.

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