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Journal Articles International Journal of Computer Assisted Radiology and Surgery Year : 2022

Stretched reconstruction based on 2D freehand ultrasound for peripheral artery imaging

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Abstract

PURPOSE: Endovascular revascularization is becoming the established first-line treatment of peripheral artery disease (PAD). Ultrasound (US) imaging is used pre-operatively to make the first diagnosis and is often followed by a CT angiography (CTA). US provides a non-invasive and non-ionizing method for the visualization of arteries and lesion(s). This paper proposes to generate a 3D stretched reconstruction of the femoral artery from a sequence of 2D US B-mode frames. METHODS: The proposed method is solely image-based. A Mask-RCNN is used to segment the femoral artery on the 2D US frames. In-plane registration is achieved by aligning the artery segmentation masks. Subsequently, a convolutional neural network (CNN) predicts the out-of-plane translation. After processing all input frames and re-sampling the volume according to the vessel’s centerline, the whole femoral artery can be visualized on a single slice of the resulting stretched view. RESULTS: 111 tracked US sequences of the left or right femoral arteries have been acquired on 18 healthy volunteers. fivefold cross-validation was used to validate our method and achieve an absolute mean error of 0.28 ± 0.28 mm and a median drift error of 8.98%. CONCLUSION: This study demonstrates the feasibility of freehand US stretched reconstruction following a deep learning strategy for imaging the femoral artery. Stretched views are generated and can give rich diagnosis information in the pre-operative planning of PAD procedures. This visualization could replace traditional 3D imaging in the pre-operative planning process, and during the pre-operative diagnosis phase, to identify, locate, and size stenosis/thrombosis lesions.
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Dates and versions

hal-03659666 , version 1 (23-09-2022)

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Attribution - NonCommercial - CC BY 4.0

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Thomas Leblanc, Florent Lalys, Quentin Tollenaere, Adrien Kaladji, Antoine Lucas, et al.. Stretched reconstruction based on 2D freehand ultrasound for peripheral artery imaging. International Journal of Computer Assisted Radiology and Surgery, 2022, 17 (7), pp.1281-1288. ⟨10.1007/s11548-022-02636-w⟩. ⟨hal-03659666⟩
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