tomography images
Despeckling of Optical Coherence Tomography Images: A Comparative Study
... coherence tomography images are susceptible to speckle noise which affects the interpretation and analysis of internal structures of ...from images while retaining the original quality of the ...
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Quantitative Analysis of Thoracic Computed Tomography Images
... In this chapter we proposed a new method for extracting airway trees from 3D computed tomography images. We focused our method on removing leakage regions while still seg- menting most thin airway. Compared ...
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Dictionary based super resolution for positron emission tomography images
... PET images was ...The images were reconstructed using FBP and OSEM ...real tomography studies because it avoids using multiple images where a set of LR images with subvoxel displacement ...
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Evaluating and Improving Cochlear Length Measurements on Clinical Computed Tomography Images
... High resolution micro-CT images were used to obtain the gold standard A-values for each specimen. In order to fit within the micro-CT scanner bore, a cylindrical drill bit, with a diameter of 40mm and a height of ...
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Detection of Lung Nodule from Computed Tomography Images
... computed tomography (CT) images. CT Images are more efficient and provide appropriate details on anatomical features of the lung nodule than ...CT images on the basis of nodule feature such as ...
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Denoising of Computed Tomography Images using Wavelet Transform
... biomedical images and biomedical image processing. Computed Tomography (CT) image is excellent for showing abnormalities of the brain such as: stroke, hemorrhage, tumor, multiple sclerosis or ...
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Anatomical evaluation of nasopalatine canal on cone beam computed tomography images
... CT images and detected that NPC was cylindrical most frequently, followed by the cone-, hourglass- and least frequently ba- ...CT images of 500 cases; they found that ...CT images of 230 cases, as ...
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Image Quality Improvement in Kidney Stone Detection on Computed Tomography Images
... In this paper we are going to propose a digitized transverse abdomen CT scan images were taken with Toshiba Aquilion 16 Slice CT scanner, and obtained from the Imam Reza Hospital in Iran (kums.ac.ir) through their ...
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Vascular variations of the kidney, retrospective analysis of computed tomography images of ninety-one laparoscopic donor nephrectomies, and comparison of computed tomography images with perioperative findings
... automodulation (80-450 mAs) with adaptive statistical iterative reconstruction (ASIR), tube voltage 120 kVp, gantry rotation time 0.6 s, detector coverage 40 mm, slice thickness 1,25 m, and pitch 1.375. Acquired ...
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Method to compute fiber directions in wood from computed tomography images
... five images are grouped together which indicate that the fiber directions (or the possibility of detect- ing fiber directions), vary in the axial direction of the ...certain images give more spread than ...
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Automatic segmentation of anterior segment optical coherence tomography images
... Two different methods have been used for creating a shape term. Initially an ellipse was fitted to the surface to provide a guide shape for the cornea, this shape was used for the level set and graph cut techniques. An ...
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Cascaded techniques for improving emphysema classification in computed tomography images
... the multi-fractal approach of Emphysema classification is shown in Figure 1. The process involves several algorithmic stages, first of which is the calculation of the Holder expo- nent (α-values) at each pixel using a ...
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Liver Tumour Diagnosis Using Computed Tomography Images
... Yu Masuda, Amir Hossein Foruzan, Tomoko Tateyama and Yen Wei Chen [4] proposed a new method to detect liver tumors in CT images automatically. The proposed method is composed of two steps. In the first step, tumor ...
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Investigation of gastric cancers in nude mice using X-ray in-line phase contrast imaging
... must to be improved to shorten the time of the specimens’ imaging. We use a kind of currently very common filter back projective image algorithm, but the reconstruction image of XILPCI CT has circular artifacts. Here ...
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Swept source optical coherence tomography and optical coherence tomography angiography in pediatric enhanced S cone syndrome: a case report
... coherence tomography B scan images showing the progression of macular schisis in right eye and left eye affected by enhanced S-cone ...coherence tomography images of right eye ( A ) and left ...
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Design of the Intravenous Magnesium Efficacy in Acute Stroke (IMAGES) trial [ISRCTN19943732]
... Despite the 12-h time window for recruitment of patients with acute stroke with limb weakness, the IMAGES proto- col has been implemented in hospitals throughout the UK and worldwide. Although recruitment rates ...
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ACCURACY OF CT ANGIOGRAPHY IN EVALUATING THE ACUTE STROKE (ISCHEMIC AND HEMORRHAGIC)
... CTA Assists in estimating the level of occlusion in the arterial tree (the thrombus burden). When compared to endovascular therapy [21,22] , recanalization rates in patients with proximal occlusions are substantially ...
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ANALYSING THE POWER INTENSITY VARIATION ON THE QUALITY OF HEAD TOMOGRAPHIC IMAGES
... the images acquired under different power intensities are compared pairwise by calculating their Peak Signal-to-Noise ...between images related to the same section of the head tomography, but ...
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An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography
... computed tomography (CT) remain the only means of assessing continuity of the bony lining of the fossa, and the abnormal presence of ruptures and fissures in the bony cavity of the ...quality images with ...
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Binocular stereo-navigation for three-dimensional thoracoscopic lung resection
... computed tomography (HRCT) without contrast ...HRCT-scan images of tumor and hilum in digital imaging and communications-in-medicine (DICOM) format were uploaded to the PC, homemade software, named “CTTRY” ...
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