Peripheral lung nodules remain challenging for accurate localization and diagnosis. Once identified, there are many strategies for diagnosis with heterogeneous risk benefit analysis. Traditional strategies such as conventional bronchoscopy have poor performance in locating and acquiring the required tissue. Similarly, while computerized-assisted transthoracic needle biopsy is currently the favo...

Fungal sinus infections are being recognized with increasing frequency. We report a case with rhino cerebral and chest phaeohyphomycosis infection caused by Cladosporium bantianum in an 18 year old man with Wegener's granulomatosis. The diagnosis was established by histopathological appearance, direct examination, culture and computerized tomography (CT) scan. This case was successfully tr...

Deferring discretization can occasionally change our perspective on imaging problems. To illustrate, we offer a reformulation of regularized computed tomography (CT) in which the large system of coupled equations for the unknown smoothed image is decoupled into many smaller and simpler equations, each for a separate projection. Regularized CT thus becomes a two-stage process of (nonhomogeneous)...

BACKGROUND Atherosclerotic aortic arch plaques (AAP) have been linked to an increased risk of thrombo-embolic events as a cause of acute ischemic stroke of undetermined etiology. OBJECTIVES To find out the presence of atherosclerotic plaques in aortic arch and their potential role as a source of embolism in cerebral infarction of undetermined etiology. METHODS We performed trans-esophageal ...

<span lang="EN-US">The COVID-19 outbreak has been affecting the health of people all around world. With number confirmed cases and deaths still rising daily, so main aim is to detect positive as soon provide them with necessary treatment. The utilization imaging data including chest x-rays computed tomography (CT) was proven that would be beneficial for quickly diagnosing COVID-19. Since ...

In computer vision image detection and quantification play an important role. Image Detection is the process of identifying nodule position amount covered area. The dataset which we have used for this research contains 3D CT lung images. our proposed work taken images those are high-resolution We compared accuracy existing mask segmented segmentation method that applied to these Sparse Field Me...

Smoothing of biomedical images should preserve gray-level transitions between adjacent tissues, while restoring contours consistent with anatomical structures. Anisotropic diffusion operators are based on image appearance discontinuities (either local or contextual) and might fail at weak inter-tissue transitions. Meanwhile, the output of block-wise and morphological operations is prone to pres...

BACKGROUND The Filtered Back-Projection (FBP) algorithm is the most important technique for computerized tomographic (CT) imaging, in which the ramp filter plays a key role. FBP algorithm had been derived using the continuous system model. However, it has to be discretized in practical applications, which necessarily produces distortion in the reconstructed images. METHODS A novel scheme is p...