Computerized Medical Imaging and Graphics This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Multifiber Pathway Reconstruction Using Bundle Constrained Streamline
Diffusion magnetic resonance imaging (dMRI) tractography provides a primary tool for studying the fiber architecture of biological tissues both noninvasively and in vivo. The technique allows us to estimate neuronal tract pathways to determine both the structure and the connectivity of the brain. (Source: Computerized Medical Imaging and Graphics)
Source: Computerized Medical Imaging and Graphics - August 22, 2015 Category: Radiology Authors: Chun-Yu Chu, Jian-Pin Huang, Chang-Yu Sun, Yan-Li Zhang, Wan-Yu Liu, Yue-Min Zhu Source Type: research

Fractal Texture Analysis of the Healing Process after Bone Loss
Healing time of extensive bone deficits in jaws arising after cyst removal and left empty, is prolonged. Very often bone loss areas do not heal completely leading to volume deficit of the alveolar process and subsequent cosmetic defect especially in anterior parts of the oral cavity [1,2]. The filling of postresectal and postcystal areas with connective tissue instead of bone, may result in pain symptoms as well as difficult radiological differential diagnosis of connective tissue scars with chronic periapical granulation tissue and even with root cyst [3–6]. (Source: Computerized Medical Imaging and Graphics)
Source: Computerized Medical Imaging and Graphics - August 20, 2015 Category: Radiology Authors: Marta Borowska, Janusz Szarmach, Edward Oczeretko Source Type: research

Machine Learning Approaches to Analyze Histological Images of Tissues from Radical Prostatectomies
Prostate cancer (PCa) remains the most commonly diagnosed cancer in men in developed countries. Fortunately, cancer deaths are steadily declining despite a fairly steady rate of new incidences per year [1]. Microscopic evaluation of prostate needle biopsies is the gold standard for PCa diagnosis and criteria have been established to manage patients based on histopathologic observations in the biopsy and radical prostatectomies. While normal glands are organized into ducts and acini and well separated by stroma, as PCa develops, the malignant acinar structures undergo excessive branching morphogenesis. (Source: Computerized...
Source: Computerized Medical Imaging and Graphics - August 20, 2015 Category: Radiology Authors: Arkadiusz Gertych, Nathan Ing, Zhaoxuan Ma, Thomas J. Fuchs, Sadri Salman, Sambit Mohanty, Sanica Bhele, Adriana Velásquez-Vacca, Mahul Amin, Beatrice S. Knudsen Source Type: research

Non-rigid Image Registration with Anatomical Structure Constraint for Assessing Locoregional Therapy of Hepatocellular Carcinoma
Locoregional therapy (LT) is a choice for the treatment of hepatocellular carcinoma (HCC). It targets the specific inflicted region of the liver by injecting a higher dose of drugs into the tumor without exposing the rest of the patient's body. This therapy reduces the chances of infection and shortens recovery time. However, in certain situations, tumors cannot be removed clearly with LT. Thus, it is desirable to assess the therapeutic efficiency after treatment of HCC. Currently, the assessment method widely used compares the two-dimensional (2D) CT images (axial, coronal, and sagittal) manually; however, selecting the c...
Source: Computerized Medical Imaging and Graphics - August 20, 2015 Category: Radiology Authors: Chunhua Dong, Toshihito Seki, Ryosuke Inoguchi, Chen-Lun Lin, Xian-hua Han, Yen-wei Chen Source Type: research

A Fast Algorithm to Estimate Inverse Consistent Image Transformation Based on Corresponding Landmarks
Image transformation is widely used to map images, and plays an important role in imaging analysis such as image registration, animation and shape atlases construction. In image registration, one of the key issues is the transformation model used between the source image and the target image. Transformations between two images are expected to be one-to-one to make sure that each point in the source image just has one corresponding point in the target image and vice versa. In particular, for medical image registration, symmetry and inverse consistency are two commonly required properties of transformations [1] to produce th...
Source: Computerized Medical Imaging and Graphics - August 8, 2015 Category: Radiology Authors: Xuan Yang, Dian Zhang, Shuiyong Yao, Bo Wang Source Type: research

Segmentation of Uterine Fibroid Ultrasound Images Using a Dynamic Statistical Shape Model in HIFU Therapy
Uterine fibroids are commonly occurring benign tumors that can trouble females. The incidence of uterine fibroids in women over the age of 30 years is 20−25% [1]. Ultrasound (US) imaging has becoming the main imaging modality for uterine fibroids diagnosis and treatment, due to its inexpensive diagnostic value compared with computed tomography (CT) or magnetic resonance imaging (MRI) and able to follow anatomical deformations in real-time. (Source: Computerized Medical Imaging and Graphics)
Source: Computerized Medical Imaging and Graphics - August 5, 2015 Category: Radiology Authors: Bo Ni, Fazhi He, ZhiYong Yuan Source Type: research

Intravascular ultrasonic–photoacoustic (IVUP) endoscope with 2.2-mm diameter catheter for medical imaging
Photoacoustic imaging (PAI) is based on the optoacoustic effects that result from the formation of acoustic waves due to light absorption in the sample. In this technique, nanosecond laser pulses are typically employed to irradiate biological tissues. Through the conversion of the absorbed light energy into heat, the acoustic waves can be generated within the irradiated volume following the transient thermoelastic expansion of the tissues. These acoustic waves can be identified and collected to reconstruct a photoacoustic image of the spatial distribution of light absorbers from the tissue compositions by using an ultrasou...
Source: Computerized Medical Imaging and Graphics - July 22, 2015 Category: Radiology Authors: Nhat Quang Bui, Kyu Kyu Hlaing, Van Phuc Nguyen, Trung Hau Nguyen, Yun-Ok Oh, Xiao Feng Fan, Yong Wook Lee, Seung Yun Nam, Hyun Wook Kang, Junghwan Oh Source Type: research

Efficient TpV minimization for circular, cone-beam computed tomography reconstruction via non-convex optimization
Cone-beam computed tomography (CT) configured with circular scanning is widely used in many imaging applications [1]. Accurate image reconstruction with sparse or few views is greatly important in areas needing fast data acquisition [2] or low radiation levels [3]. A lot of work [2–13] regarding iterative image reconstruction (IIR) algorithms has focused on total variation (TV) minimization, which exploits the sparsity of the gradient magnitude image (GMI). TV is the L1 norm of the GMI and reconstruction done by minimizing TV can reduce data acquisition when the GMI is sparse in non-zero entities. (Source: Computerized M...
Source: Computerized Medical Imaging and Graphics - July 22, 2015 Category: Radiology Authors: Ailong Cai, Linyuan Wang, Bin Yan, Lei Li, Hanming Zhang, Guoen Hu Source Type: research

Efficient TV minimization for circular, cone-beam computed tomography reconstruction via non-convex optimization
Cone-beam computed tomography (CT) configured with circular scanning is widely used in many imaging applications [1]. Accurate image reconstruction with sparse or few views is greatly important in areas needing fast data acquisition [2] or low radiation levels [3]. A lot of work [2–13] regarding iterative image reconstruction (IIR) algorithms has focused on total variation (TV) minimization, which exploits the sparsity of the gradient magnitude image (GMI). TV is the L1 norm of the GMI and reconstruction done by minimizing TV can reduce data acquisition when the GMI is sparse in non-zero entities. (Source: Computerized M...
Source: Computerized Medical Imaging and Graphics - July 22, 2015 Category: Radiology Authors: Ailong Cai, Linyuan Wang, Bin Yan, Lei Li, Hanming Zhang, Guoen Hu Source Type: research

Retinal vessel segmentation using multi-scale textons derived from keypoints
The visual appearance of the retina in digital fundus images is an important indicator of eye disease and can be diagnostic of a range of more general issues relating to health and wellbeing. As such, fundus photography is also used in screening programmes for diseases such as diabetes and hypertension and the morphological properties of retinal vessels are reported in routine clinical and ophthalmological examinations. The projected increase in patients suffering from these disorders together with the tedious nature and high cost of manual examination has motivated research into computer assisted tools that can improve pr...
Source: Computerized Medical Imaging and Graphics - July 22, 2015 Category: Radiology Authors: Lei Zhang, Mark Fisher, Wenjia. Wang Source Type: research

Intravascular ultrasonic-photoacoustic (IVUP) endoscope with 2.2-mm diameter catheter for medical imaging
Photoacoustic imaging (PAI) is based on the optoacoustic effects that result from the formation of acoustic waves due to light absorption in the sample. In this technique, nanosecond laser pulses are typically employed to irradiate biological tissues. Through the conversion of the absorbed light energy into heat, the acoustic waves can be generated within the irradiated volume following the transient thermoelastic expansion of the tissues. These acoustic waves can be identified and collected to reconstruct a photoacoustic image of the spatial distribution of light absorbers from the tissue compositions by using an ultrasou...
Source: Computerized Medical Imaging and Graphics - July 22, 2015 Category: Radiology Authors: Nhat Quang Bui, Kyu Kyu Hlaing, Van Phuc Nguyen, Trung Hau Nguyen, Yun-Ok Oh, Xiao Feng Fan, Yong Wook Lee, Seung Yun Nam, Hyun Wook Kang, Junghwan Oh Source Type: research

Mass-spring systems for simulating mitral valve repair using 3D ultrasound images
Heart diseases are the most common cause of death worldwide [40], and the mitral valve is most often affected by valvular diseases [35]. (Source: Computerized Medical Imaging and Graphics)
Source: Computerized Medical Imaging and Graphics - July 22, 2015 Category: Radiology Authors: Stephan Skornitzke, Georg Schummers, Marcus Schreckenberg, Jörg Ender, Sarah Eibel, Hans-Joachim Bungartz, Hans-Ulrich Kauczor, Wolfram Stiller Source Type: research

A Bayesian Approach to Distinguishing Interdigitated Tongue Muscles from Limited Diffusion Magnetic Resonance Imaging
The tongue is a critical organ for a variety of functions, including swallowing, respiration, and speech [1,2]. It contains intrinsic and extrinsic muscles that play an important role in changing its shape and position [3]. Tongue muscles have been studied using diffusion tensor imaging (DTI) [4–9], which provides a noninvasive tool for investigating fiber tracts by imaging the anisotropy of water diffusion [10]. For example, in Gaige et al. [5], based on diffusion tensors, the technique of fiber tracking [11,12,10,13] was used to reconstruct 3D curves representing key muscle fibers and visualize the tongue anatomy....
Source: Computerized Medical Imaging and Graphics - July 21, 2015 Category: Radiology Authors: Chuyang Ye, Emi Murano, Maureen Stone, Jerry L. Prince Source Type: research

Mapping and Characterizing Endometrial Implants by Registering 2D Transvaginal Ultrasound to 3D Pelvic Magnetic Resonance Images
Endometriosis is a poorly understood, multifocal gynaecological disease that can affect women of any age. The term endometriosis is derived from the word endometrium. It is the tissue that lines the inside lining of the uterus and has an ability to enhance and recede cyclically, in response to oestrogen. More specifically, this tissue builds up and is shed each month and discharged as menstrual flow at the end of each cycle. However, the endometrial tissue can sometimes grow or spread in abnormal ways. (Source: Computerized Medical Imaging and Graphics)
Source: Computerized Medical Imaging and Graphics - July 21, 2015 Category: Radiology Authors: Amir Yavariabdi, Adrien Bartoli, Chafik Samir, Maxime Artigues, Michel Canis Source Type: research

Automated compromised right lung segmentation method using a robust atlas-based active volume model with sparse shape composition prior in CT
Lung cancer remains one of the leading causes of cancer-related deaths in the United States [1]. The prognosis of patients with lung cancer has improved over recent years, in part as a result of a range of significant improvements in imaging and computer technology as well as technical advances in radiation therapy planning and delivery, including techniques such as image-guided radiotherapy (IGRT) [2]. (Source: Computerized Medical Imaging and Graphics)
Source: Computerized Medical Imaging and Graphics - July 20, 2015 Category: Radiology Authors: Jinghao Zhou, Zhennan Yan, Giovanni Lasio, Junzhou Huang, Baoshe Zhang, Navesh Sharma, Karl Prado, Warren D’Souza Source Type: research