journal
MENU ▼
Read by QxMD icon Read
search

International Journal of Biomedical Imaging

journal
https://www.readbyqxmd.com/read/29971096/estimation-of-the-craniectomy-surface-area-by-using-postoperative-images
#1
Meng-Yin Ho, Wei-Lung Tseng, Furen Xiao
Decompressive craniectomy (DC) is a neurosurgical procedure performed to relieve the intracranial pressure engendered by brain swelling. However, no easy and accurate method exists for determining the craniectomy surface area. In this study, we implemented and compared three methods of estimating the craniectomy surface area for evaluating the decompressive effort. We collected 118 sets of preoperative and postoperative brain computed tomography images from patients who underwent craniectomy procedures between April 2009 and April 2011...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29971095/instant-feedback-rapid-prototyping-for-gpu-accelerated-computation-manipulation-and-visualization-of-multidimensional-data
#2
Maximilian Malek, Christoph W Sensen
Objective: We have created an open-source application and framework for rapid GPU-accelerated prototyping, targeting image analysis, including volumetric images such as CT or MRI data. Methods: A visual graph editor enables the design of processing pipelines without programming. Run-time compiled compute shaders enable prototyping of complex operations in a matter of minutes. Results: GPU-acceleration increases processing the speed by at least an order of magnitude when compared to traditional multithreaded CPU-based implementations, while offering the flexibility of scripted implementations...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29887876/adaptive-diffeomorphic-multiresolution-demons-and-their-application-to-same-modality-medical-image-registration-with-large-deformation
#3
Chang Wang, Qiongqiong Ren, Xin Qin, Yi Yu
Diffeomorphic demons can guarantee smooth and reversible deformation and avoid unreasonable deformation. However, the number of iterations needs to be set manually, and this greatly influences the registration result. In order to solve this problem, we proposed adaptive diffeomorphic multiresolution demons in this paper. We used an optimized framework with nonrigid registration and diffeomorphism strategy, designed a similarity energy function based on grey value, and stopped iterations adaptively. This method was tested by synthetic image and same modality medical image...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29853828/computer-aided-grading-of-gliomas-combining-automatic-segmentation-and-radiomics
#4
Wei Chen, Boqiang Liu, Suting Peng, Jiawei Sun, Xu Qiao
Gliomas are the most common primary brain tumors, and the objective grading is of great importance for treatment. This paper presents an automatic computer-aided diagnosis of gliomas that combines automatic segmentation and radiomics, which can improve the diagnostic ability. The MRI data containing 220 high-grade gliomas and 54 low-grade gliomas are used to evaluate our system. A multiscale 3D convolutional neural network is trained to segment whole tumor regions. A wide range of radiomic features including first-order features, shape features, and texture features is extracted...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29853827/corrigendum-to-recent-advances-in-microwave-imaging-for-breast-cancer-detection
#5
Sollip Kwon, Seungjun Lee
[This corrects the article DOI: 10.1155/2016/5054912.].
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29849536/brain-midline-shift-measurement-and-its-automation-a-review-of-techniques-and-algorithms
#6
REVIEW
Chun-Chih Liao, Ya-Fang Chen, Furen Xiao
Midline shift (MLS) of the brain is an important feature that can be measured using various imaging modalities including X-ray, ultrasound, computed tomography, and magnetic resonance imaging. Shift of midline intracranial structures helps diagnosing intracranial lesions, especially traumatic brain injury, stroke, brain tumor, and abscess. Being a sign of increased intracranial pressure, MLS is also an indicator of reduced brain perfusion caused by an intracranial mass or mass effect. We review studies that used the MLS to predict outcomes of patients with intracranial mass...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29805438/cryo-imaging-and-software-platform-for-analysis-of-molecular-mr-imaging-of-micrometastases
#7
Mohammed Q Qutaish, Zhuxian Zhou, David Prabhu, Yiqiao Liu, Mallory R Busso, Donna Izadnegahdar, Madhusudhana Gargesha, Hong Lu, Zheng-Rong Lu, David L Wilson
We created and evaluated a preclinical, multimodality imaging, and software platform to assess molecular imaging of small metastases. This included experimental methods (e.g., GFP-labeled tumor and high resolution multispectral cryo-imaging), nonrigid image registration, and interactive visualization of imaging agent targeting. We describe technological details earlier applied to GFP-labeled metastatic tumor targeting by molecular MR (CREKA-Gd) and red fluorescent (CREKA-Cy5) imaging agents. Optimized nonrigid cryo-MRI registration enabled nonambiguous association of MR signals to GFP tumors...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29736165/classification-of-alzheimer-s-and-mci-patients-from-semantically-parcelled-pet-images-a-comparison-between-av45-and-fdg-pet
#8
Seyed Hossein Nozadi, Samuel Kadoury, The Alzheimer's Disease Neuroimaging Initiative
Early identification of dementia in the early or late stages of mild cognitive impairment (MCI) is crucial for a timely diagnosis and slowing down the progression of Alzheimer's disease (AD). Positron emission tomography (PET) is considered a highly powerful diagnostic biomarker, but few approaches investigated the efficacy of focusing on localized PET-active areas for classification purposes. In this work, we propose a pipeline using learned features from semantically labelled PET images to perform group classification...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29731769/optimization-of-visual-information-presentation-for-visual-prosthesis
#9
Fei Guo, Yuan Yang, Yong Gao
Visual prosthesis applying electrical stimulation to restore visual function for the blind has promising prospects. However, due to the low resolution, limited visual field, and the low dynamic range of the visual perception, huge loss of information occurred when presenting daily scenes. The ability of object recognition in real-life scenarios is severely restricted for prosthetic users. To overcome the limitations, optimizing the visual information in the simulated prosthetic vision has been the focus of research...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29623087/ebg-based-microstrip-patch-antenna-for-brain-tumor-detection-via-scattering-parameters-in-microwave-imaging-system
#10
Reefat Inum, Md Masud Rana, Kamrun Nahar Shushama, Md Anwarul Quader
A microwave brain imaging system model is envisaged to detect and visualize tumor inside the human brain. A compact and efficient microstrip patch antenna is used in the imaging technique to transmit equivalent signal and receive backscattering signal from the stratified human head model. Electromagnetic band gap (EBG) structure is incorporated on the antenna ground plane to enhance the performance. Rectangular and circular EBG structures are proposed to investigate the antenna performance. Incorporation of circular EBG on the antenna ground plane provides an improvement of 22...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29610569/respiratory-motion-correction-for-compressively-sampled-free-breathing-cardiac-mri-using-smooth-l-1-norm-approximation
#11
Muhammad Bilal, Jawad Ali Shah, Ijaz M Qureshi, Kushsairy Kadir
Transformed domain sparsity of Magnetic Resonance Imaging (MRI) has recently been used to reduce the acquisition time in conjunction with compressed sensing (CS) theory. Respiratory motion during MR scan results in strong blurring and ghosting artifacts in recovered MR images. To improve the quality of the recovered images, motion needs to be estimated and corrected. In this article, a two-step approach is proposed for the recovery of cardiac MR images in the presence of free breathing motion. In the first step, compressively sampled MR images are recovered by solving an optimization problem using gradient descent algorithm...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29552029/localizing-optic-disc-in-retinal-image-automatically-with-entropy-based-algorithm
#12
Lamia AbedNoor Muhammed
Examining retinal image continuously plays an important role in determining human eye health; with any variation present in this image, it may be resulting from some disease. Therefore, there is a need for computer-aided scanning for retinal image to perform this task automatically and accurately. The fundamental step in this task is identification of the retina elements; optical disk localization is the most important one in this identification. Different optical disc localization algorithms have been suggested, such as an algorithm that would be proposed in this paper...
2018: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29317858/saliency-based-bleeding-localization-for-wireless-capsule-endoscopy-diagnosis
#13
Hongda Chen, Shaoze Wang, Yong Ding, Dahong Qian
Stomach bleeding is a kind of gastrointestinal disease which can be diagnosed noninvasively by wireless capsule endoscopy (WCE). However, it requires much time for physicians to scan large amount of WCE images. Alternatively, computer-assisted bleeding localization systems are developed where color, edge, and intensity features are defined to distinguish lesions from normal tissues. This paper proposes a saliency-based localization system where three saliency maps are computed: phase congruency-based edge saliency map derived from Log-Gabor filter bands, intensity histogram-guided intensity saliency map, and red proportion-based saliency map...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29250107/narrow-energy-width-ct-based-on-multivoltage-x-ray-image-decomposition
#14
Jiaotong Wei, Yan Han, Ping Chen
A polychromatic X-ray beam causes the grey of the reconstructed image to depend on its position within a solid and the material being imaged. This factor makes quantitative measurements via computed tomography (CT) imaging very difficult. To obtain a narrow-energy-width reconstructed image, we propose a model to decompose multivoltage X-ray images into many narrow-energy-width X-ray images by utilizing the low frequency characteristics of X-ray scattering. It needs no change of hardware in the typical CT system...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29234351/space-and-time-resolved-detection-of-platelet-activation-and-von-willebrand-factor-conformational-changes-in-deep-suspensions
#15
Jacopo Biasetti, Kaushik Sampath, Angel Cortez, Alaleh Azhir, Assaf A Gilad, Thomas S Kickler, Tobias Obser, Zaverio M Ruggeri, Joseph Katz
Tracking cells and proteins' phenotypic changes in deep suspensions is critical for the direct imaging of blood-related phenomena in in vitro replica of cardiovascular systems and blood-handling devices. This paper introduces fluorescence imaging techniques for space and time resolved detection of platelet activation, von Willebrand factor (VWF) conformational changes, and VWF-platelet interaction in deep suspensions. Labeled VWF, platelets, and VWF-platelet strands are suspended in deep cuvettes, illuminated, and imaged with a high-sensitivity EM-CCD camera, allowing detection using an exposure time of 1 ms...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29225613/a-multitasking-electrical-impedance-tomography-system-using-titanium-alloy-electrode
#16
Abdalla Salama, Amin Malekmohammadi, Shahram Mohanna, Rajprasad Rajkumar
This paper presents a multitasking electrical impedance tomography (EIT) system designed to improve the flexibility and durability of an existing EIT system. The ability of the present EIT system to detect, locate, and reshape objects was evaluated by four different experiments. The results of the study show that the system can detect and locate an object with a diameter as small as 1.5 mm in a testing tank with a diameter of 134 mm. Moreover, the results demonstrate the ability of the current system to reconstruct an image of several dielectric object shapes...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29201039/multitemporal-volume-registration-for-the-analysis-of-rheumatoid-arthritis-evolution-in-the-wrist
#17
Roberta Ferretti, Silvana G Dellepiane
This paper describes a method based on an automatic segmentation process to coregister carpal bones of the same patient imaged at different time points. A rigid registration was chosen to avoid artificial bone deformations and to allow finding eventual differences in the bone shape due to erosion, disease regression, or other eventual pathological signs. The actual registration step is performed on the basis of principal inertial axes of each carpal bone volume, as estimated from the inertia matrix. In contrast to already published approaches, the proposed method suggests splitting the 3D rotation into successive rotations about one axis at a time (the so-called basic or elemental rotations)...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29158729/evaluation-of-deformable-image-registration-for-three-dimensional-temporal-subtraction-of-chest-computed-tomography-images
#18
Ping Yan, Yoshie Kodera, Kazuhiro Shimamoto
Purpose: To perform lung image registration for reducing misregistration artifacts on three-dimensional (3D) temporal subtraction of chest computed tomography (CT) images, in order to enhance temporal changes in lung lesions and evaluate these changes after deformable image registration (DIR). Methods: In 10 cases, mutual information (MI) lung mask affine mapping combined with cross-correlation (CC) lung diffeomorphic mapping was used to implement lung volume registration...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29118806/computer-aided-cobb-measurement-based-on-automatic-detection-of-vertebral-slopes-using-deep-neural-network
#19
Junhua Zhang, Hongjian Li, Liang Lv, Yufeng Zhang
Objective: To develop a computer-aided method that reduces the variability of Cobb angle measurement for scoliosis assessment. Methods: A deep neural network (DNN) was trained with vertebral patches extracted from spinal model radiographs. The Cobb angle of the spinal curve was calculated automatically from the vertebral slopes predicted by the DNN. Sixty-five in vivo radiographs and 40 model radiographs were analyzed. An experienced surgeon performed manual measurements on the aforementioned radiographs...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/28947898/an-automatic-image-processing-system-for-glaucoma-screening
#20
Ahmed Almazroa, Sami Alodhayb, Kaamran Raahemifar, Vasudevan Lakshminarayanan
Horizontal and vertical cup to disc ratios are the most crucial parameters used clinically to detect glaucoma or monitor its progress and are manually evaluated from retinal fundus images of the optic nerve head. Due to the rarity of the glaucoma experts as well as the increasing in glaucoma's population, an automatically calculated horizontal and vertical cup to disc ratios (HCDR and VCDR, resp.) can be useful for glaucoma screening. We report on two algorithms to calculate the HCDR and VCDR. In the algorithms, level set and inpainting techniques were developed for segmenting the disc, while thresholding using Type-II fuzzy approach was developed for segmenting the cup...
2017: International Journal of Biomedical Imaging
journal
journal
41099
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"