Fast and robust femur segmentation from computed tomography images for patient-specific hip fracture risk screening

Patient-Specific Radiation Dose and Cancer Risk in Computed Tomography Examinations in Ondo, Nigeria

Introduction: The dose in computed tomography (CT) often approach or exceed the optimum levels, thereby increasing the probability of cancer induction. With wide application of this diagnostic test, it is expedient to determine the effective dose (ED) for each patient to estimate their cancer risk. This study was conducted to investigate the patient-specific dose (PSD) and cancer risk in CT exa...

Patient-Specific Model Based Segmentation of Lung Computed Tomographic Images

Segmentation of lung tissue from CT images is a challenging task in computer aided diagnosis systems. In this work, a patient-specific, automated model based approach to segment lung is proposed. Patient specific shape knowledge is obtained by preprocessing the same patient’s stack of lung CT slices. The algorithm divides the patient's stack into many groups and the first ‘n’ slices with maximu...

Effects of Hip Geometry on Fracture Patterns of Proximal Femur

  Background: Some studies have previously shown that geometry of proximal femur can affect the probability of fracture and type of fracture. It happens since the geometry of the proximal femur determines how a force is applied to its different parts. In this study, we have compared proximal femur’s geometric characteristics in femoral neck (FNF), intertrochanteric (ITF) and Subtrochanteric (ST...

Odontoid Fracture: Computed Tomography

Semi-automated carotid lumen segmentation in computed tomography angiography images.

Carotid artery stenosis causes narrowing of carotid lumens and may lead to brain infarction. The purpose of this study was to develop a semi-automated method of segmenting vessel walls, surrounding tissues, and more importantly, the carotid artery lumen by contrast computed tomography angiography (CTA) images and to define the severity of stenosis and present a three-dimensional model of the ca...