CT images
A NSRS Detection Method for Ablation Needles in CT Images
... CT images provide an effective and clear way to guide needle insertion interventions, such as biopsy and interventional surgery. In this study, a new NSRS model is proposed to accurately locate the pins and ...
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Unified wavelet and gaussian filtering for segmentation of CT images; application in segmentation of bone in pelvic CT images
... (CT) images, as CT is more detailed than X-Ray. Since the number of CT slices can be quite large, it is important to develop a com- puter aided decision making system to analyze the data, ...
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Defect Features Recognition in 3D Industrial CT Images
... Before defect recognition, it is necessary to locate and segment defects in the image. Defect localization can obtain the location information of defects from CT images, including the method of fractal, ...
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Thyroid Segmentation and Volume Estimation Using CT Images
... Copyright to IJIRSET www.ijirset.com 338 Vector Quantization is a technique that exploits the underlying structure of input vectors for the purpose of data compression. An input space is divided in a number of distinct ...
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Curvelet Fusion of Mr and Ct Images
... The paper has presented a new trend in the fusion of MR and CT images which is based on the curvelet transform. A comparison study has been made between the traditional wavelet fusion algorithm and the ...
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LUNG CANCER DETECTION SYSTEM ON CT IMAGES- A SURVEY
... This paper shows an analysis of different image processing techniques and methods which are used in detection and prediction of automatic lung cancer system. Overall review of different algorithms and different ...
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Segmentation of Liver CT Images
... As a medical imaging technique, computed tomography(CT) is quite useful for doctors to analyze the pathological changes of the biological organs. In order to reduce deaths, the diseases must be detected accurately ...
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Performance Analysis of Certain Classifiers for Liver CT Images
... Liver diseases are one of the most common causes of deaths around the globe. Thus, identification and classification of abnormal liver is an important task. In this study, the performance analysis of different ...
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ANALYSIS OF MEDICAL CT IMAGES THROUGH WAVELET TECHNIQUES
... This paper presents improved algorithm for de-noising of medical images for early detection and diagnosis of diseases. It is based on thresholding and wavelet analysis. The algorithm has been applied to medical ...
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A JAFROC study of nodule detection performance in CT images of a thorax acquired during PET/CT
... these images was not ...on CT imaging. The metabolism of a lesion is also important in PET/CT; a small lesion that is metabolically active is likely to be seen on PET even if the morphological ...
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Multimodal Partial-Volume Correction: Application to 18F-Fluoride PET/CT Bone Metastases Studies
... in CT images due to the resulting increase in bone mineralization and ...Whilst CT is characterized by high resolution, the potential of PET is limited by its lower spatial resolution and the ...
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Comparison of Fusion Algorithms for Fusion of CT and MRI Images
... and CT images using the wavelet transform. Since medical images have several objects and curved shapes, it is expected that the curvelet transform would be better in their ...and CT ...
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Computed Tomographic Anatomy and Topography of the Lower Respiratory System of the Southern White-Breasted Hedgehog (Erinaceus concolor)
... the CT images, which were examined in both bone and lung windows, with the window level (WL) and the window width (WW) adjusted to personal preferences for different ...reconstruction images were ...
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Contrast Enhancement of Posterior Mediastinal Ganglioneuromas—Correlation between the Level of Enhancement and Histopathological Features
... seconds. CT attenuation of the neoplasms was classified visually as follows: low (lower than that of muscles); intermediate (equal to that of muscles); and high (higher than that of ...enhanced images ...
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Clinical analysis of contributors to the delayed gallbladder opacification following the use of water-soluble contrast medium
... There were some limitations to the present study: 1) Quantitative analysis of the hypertransaminasemia was not performed and GBO was delayed. However, a prominent OR was observed for the positive correlation between ...
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Images ‒ Computed tomography urographic appearance of traumatic rupture of renal cyst into the pyelocaliceal system
... unenhanced CT images, and do not enhance after contrast medium ...phase images, the cyst appears to have a smooth or lobular inner wall, depending on the degree of cystic distension with contrast ...
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A sparse-projection computed tomography reconstruction method for in vivo application of in-line phase-contrast imaging
... projection images of the mouse ’ s chest taken at different ...the CT reconstructed images for one slice reconstructed using two algorithms under three sampling ...the images come from the ...
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A metal artifact reduction method for a dental CT based on adaptive local thresholding and prior image generation
... medical CT to the clinical field decades ...resulting images due to the interpolation errors ...prior images, that can provide missing projection data at the metal trace, is ...prior images, ...
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CT Angiographic Source Images: Flow or Volume Weighted?
... anonymized images were transferred to a stand- alone ...perfusion CT images with SPM ...perfusion CT were traced by an experienced neuroradi- ologist ...perfusion CT data. Similarly ...
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Impact of CT slice thickness on volume and dose evaluation during thoracic cancer radiotherapy
... a CT image with a slice thickness of 2 mm (2–CT) was obtained with the patient breathing freely by a CT simulator (Brilliance-16, Philips Medical Systems ...
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