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The mapping and labeling of the major intra-hepatic blood vessels may facilitate planning liver interventions and surgery. However, the automatic labeling of liver veins is challenging due to imperfect segmentations caused by partial volume effects and image resolution that result in undesirable false connections between hepatic and portal veins. In this paper, we propose a novel method to model the...
In this paper, we present a novel approach to rigidly register intraoperative electromagnetically tracked ultrasound (US) with pre-operative contrast-enhanced magnetic resonance (MR) images. The clinical rationale for this work is to allow accurate needle placement during thermal ablations of liver metastases using multimodal imaging. We adopt a model-based approach that rigidly matches segmented...
Pulmonary hypertension is a common cause of death among patients with sickle cell disease. This retrospective study investigates the use of pulmonary vein analysis to diagnose pulmonary hypertension non-invasively with CT-Angiography images. Ten images from patients with pulmonary hypertension were matched with controls. An adaptive fast marching approach is applied in order to segment the left atrium...
The segmentation and classification of the major intra-hepatic blood vessels are critical for the robust identification of the segmental anatomy of the liver. We propose a novel 4D graph-based method to segment and label the hepatic and portal veins. The algorithm uses multi-phase CT images to model the differential enhancement of the liver structures and Hessian-based vesselness likelihood to avoid...
Keeping our ports and waterways safe from threats has become increasingly relevant. Hull and harbor infrastructure inspections are not performed regularly as they are time consuming, require careful planning and involve a huge amount of risk as well as human and monetary resources. An Autonomous Underwater Vehicle (AUV)-based approach will speed up operations and help locate and identify possible...
Militaries are becoming increasingly aware of the need to quantitatively assess their Mine Counter Measures (MCM) capabilities. Recent developments in mine-hunting technology such as the use of AUV's, automated Computer Aided Detection / Computer Aided Classification (CAD/CAC) models and high resolution sonars must be evaluated to assess their abilities to meet the ever increasing demands of the MCM...
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