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Improved nested U-structure for accurate nailfold capillary segmentation.
Microvasc Res
July 2024
School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528000, China; Ji Hua Laboratory, Foshan, Guangdong 528200, China. Electronic address:
Changes in the structure and function of nailfold capillaries may be indicators of numerous diseases. Noninvasive diagnostic tools are commonly used for the extraction of morphological information from segmented nailfold capillaries to study physiological and pathological changes therein. However, current segmentation methods for nailfold capillaries cannot accurately separate capillaries from the background, resulting in issues such as unclear segmentation boundaries.
View Article and Find Full Text PDFThe CathCam: A Novel Angioscopic Solution for Endovascular Interventions.
Ann Biomed Eng
December 2023
Faculty of Engineering and Architectural Science, Toronto Metropolitan University (Formerly Ryerson University), Toronto, ON, Canada.
Peripheral arterial diseases are commonly managed with endovascular procedures, which often face limitations in device control and visualization under X-ray fluoroscopy guidance. In response, we developed the CathCam, an angioscope integrated into an expandable cable-driven parallel mechanism to enhance real-time visualization, precise device positioning and catheter support for successful plaque crossing. The primary objective of this study was to assess and compare the performance of the novel CathCam with respect to conventional catheters and the CathPilot (i.
View Article and Find Full Text PDFNailfold capillaroscopy findings of interstitial pneumonia with autoimmune features.
Korean J Intern Med
November 2023
Division of Rheumatology, Department of Internal Medicine, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.
Background/aims: We evaluated nailfold capillaroscopy (NFC) of interstitial pneumonia with autoimmune features (IPAF) and compared it with that of patients with connective tissue disease-interstitial lung disease (CTD-ILD) and idiopathic interstitial pneumonia (IIP).
Methods: Patients with newly diagnosed as ILD were evaluated using NFC. Baseline demographic, clinical, serological, and high-resolution CT findings were collected.
Vascular involvement in Behçet's disease: ultrasound assessment of femoral vein intima-media thickness, nailfold capillaroscopy and endothelial progenitor cells in a national referral centre.
Clin Exp Rheumatol
October 2023
IDIVAL, Research Group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, Santander, and Department of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain.
Objectives: To assess vascular involvement at different levels in patients with Behçet's disease (BD).
Methods: We conducted an observational study of unselected consecutive patients with BD assessed in a national referral centre. Demographic and clinical variables were collected.
A deep learning system for quantitative assessment of microvascular abnormalities in nailfold capillary images.
Rheumatology (Oxford)
June 2023
Centre for Imaging Sciences, Division of Informatics, Imaging & Data Sciences, The University of Manchester, Manchester, UK.
Objectives: Nailfold capillaroscopy is key to timely diagnosis of SSc, but is often not used in rheumatology clinics because the images are difficult to interpret. We aimed to develop and validate a fully automated image analysis system to fill this gap.
Methods: We mimicked the image interpretation strategies of SSc experts, using deep learning networks to detect each capillary in the distal row of vessels and make morphological measurements.
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