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Dual source CT angiography in popliteal artery entrapment syndrome

Authors


  • X Sun MD; C Liu MD; R Wang MD; D Hou MD, J Chen MD.
  • Conflict of interest: The authors did not receive any outside funding or grants in support of this research for or preparation of the work. There is no conflict of interest in relation to this article.

Correspondence

Dr Rengui Wang, Beijing Shijitan Hospital affiliated to Capital University of Medical Sciences, Yangfangdian Tieyiyuan Road No.10, Haidian District, Beijing 100038, China.

Email: 490150302@qq.com

Abstract

Aim

To evaluate the clinical value of dual source computed tomography (DSCT) angiography in the diagnosis and treatment for popliteal artery entrapment syndrome (PAES).

Materials and Methods

8 patients with PAES were retrospectively reviewed. 64-slice dual source CT angiography was performed based on the following protocol: 100 mL of Iopamidol (370 mgI/mL) was injected at a rate of 3.5 mL/s and arterial phase images were obtained by using bolus tracking. Axial DSCT images and reconstructed images including multi-planar reconstruction (MPR), maximum intensity projection (MIP), volume rendering (VR) were collected and analysed. All patients underwent Doppler colour ultrasound examinations and surgeries.

Results

The popliteal artery and the neighbouring muscular structures were clearly shown on the axial images revealing the cause of the arterial entrapment. Furthermore, the site and length of the segmental occlusion and collateral developments were well demonstrated on reconstructed images. Characterisation and classification based on DSCT angiography were confirmed by surgeries. PAES was accurately diagnosed by DSCT angiography in all enrolled patients. In contrary, only 5 PAES cases were accurately diagnosed by ultrasound examination.

Conclusion

DSCT angiography is a noninvasive and valuable tool in the diagnosis of PAES and plays an important role in the determination of treatment plans.

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