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https://www.readbyqxmd.com/read/29145105/the-steel-pan-sign-of-sigmoid-volvulus-a-case-series
#1
Yardesh Singh, Shariful Islam, Ammiel Arra, Renee Banfield, Vijay Naraynsingh
INTRODUCTION: Signs in radiology are usually based on many common objects or patterns that are easily recognizable in everyday life. The objective behind this association is to aid in the understanding and diagnosis of the disease process. These signs can be seen in different imaging modalities such as plain radiograph and computed tomography. PRESENTATION OF CASE: 4 consecutive cases of sigmoid volvulus presented at our tertiary hospital between January 2016 and June 2017...
November 11, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29143395/a-novel-classification-scheme-to-decline-the-mortality-rate-among-women-due-to-breast-tumor
#2
Bushra Mughal, Muhammad Sharif, Nazeer Muhammad, Tanzila Saba
Early screening of skeptical masses or breast carcinomas in mammograms is supposed to decline the mortality rate among women. This amount can be decreased more on development of the computer-aided diagnosis with reduction of false suppositions in medical informatics. Our aim is to provide a robust tumor detection system for accurate classification of breast masses using normal, abnormal, benign, or malignant classes. The breast carcinomas are classified on the basis of observed classes. This is highly dependent on feature extraction process...
November 16, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29142352/localized-pontine-uptake-in-fluorine-18-fuorodeoxyglucose-positron-emission-tomography-computed-tomography-in-a-case-of-hyponatremia-a-case-report-and-review-of-literature
#3
Thangalakshmi Sivathapandi, Shelley Simon, Indirani Elangovan
A rare acquired demyelinating lesion of the pons central pontine myelinolysis (CPM) typically occurs after rapid correction of hyponatremia. There is disruption of blood-brain barrier due to osmotic stress allowing access for inflammatory mediators in extravascular brain tissue, which most likely attracts glial cells of the brain, attracts macrophages, and activates astrocytes. We present a case of female with a known history of inflammatory bowel disease who presented with altered sensorium and hyponatremia...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29141776/evaluation-of-a-new-ensemble-learning-framework-for-mass-classification-in-mammograms
#4
Omid Rahmani Seryasat, Javad Haddadnia
BACKGROUND: Mammography is the most common screening method for diagnosis of breast cancer. MATERIALS AND METHODS: In this study, a computer-aided system for diagnosis of benignity and malignity of the masses was implemented in mammogram images. In the computer aided diagnosis system, we first reduce the noise in the mammograms using an effective noise removal technique. After the noise removal, the mass in the region of interest must be segmented and this segmentation is done using a deformable model...
May 22, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29137015/malignant-transformation-of-a-mature-teratoma-of-the-adrenal-gland-a-rare-case-report-and-literature-review
#5
Miao Niu, Ailian Liu, Ying Zhao, Lu Feng
RATIONALE: Adrenal mature TMT is very rare. So far, only two cases have been reported. PATIENT: We report a rare case of malignant transformation of a mature teratoma in the right adrenal gland of a 36-year-old Chinese female. The patient had been asymptomatic until physical exam identified a palpable mass in the right abdomen. Abdominal non-enhanced computed tomography (CT) scan showed a huge tumor with mixed density in right adrenal region, which had cystic components, fat, calcifications, and separations...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29132616/imperceptible-watermarking-for-security-of-fundus-images-in-tele-ophthalmology-applications-and-computer-aided-diagnosis-of-retina-diseases
#6
Anushikha Singh, Malay Kishore Dutta
BACKGROUND AND OBJECTIVES: The authentication and integrity verification of medical images is a critical and growing issue for patients in e-health services. Accurate identification of medical images and patient verification is an essential requirement to prevent error in medical diagnosis. The proposed work presents an imperceptible watermarking system to address the security issue of medical fundus images for tele-ophthalmology applications and computer aided automated diagnosis of retinal diseases...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29129805/rare-genetic-diseases-update-on-diagnosis-treatment-and-online-resources
#7
REVIEW
Robert E Pogue, Denise P Cavalcanti, Shreya Shanker, Rosangela V Andrade, Lana R Aguiar, Juliana L de Carvalho, Fabrício F Costa
Rare genetic diseases collectively impact a significant portion of the world's population. For many diseases there is limited information available, and clinicians can find difficulty in differentiating between clinically similar conditions. This leads to problems in genetic counseling and patient treatment. The biomedical market is affected because pharmaceutical and biotechnology industries do not see advantages in addressing rare disease treatments, or because the cost of the treatments is too high. By contrast, technological advances including DNA sequencing and analysis, together with computer-aided tools and online resources, are allowing a more thorough understanding of rare disorders...
November 10, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/29121540/computer-aided-diagnosis-of-diabetic-foot-using-infrared-thermography-a-review
#8
Muhammad Adam, Eddie Y K Ng, Jen Hong Tan, Marabelle L Heng, Jasper W K Tong, U Rajendra Acharya
Diabetes mellitus (DM) is a chronic metabolic disorder that requires regular medical care to prevent severe complications. The elevated blood glucose level affects the eyes, blood vessels, nerves, heart, and kidneys after the onset. The affected blood vessels (usually due to atherosclerosis) may lead to insufficient blood circulation particularly in the lower extremities and nerve damage (neuropathy), which can result in serious foot complications. Hence, an early detection and treatment can prevent foot complications such as ulcerations and amputations...
October 26, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29118876/large-dermoid-cyst-presenting-as-recurrent-pancreatitis
#9
Emmanuel Ofori, Daryl Ramai, Denzil Etienne, Madhavi Reddy, Ghulamullah Shahzad
Pancreatic dermoid cysts are rare and benign congenital abnormalities of germ cell origin. They occur equally in males and females without age predilection. Though radiographic imaging aids in the diagnosis, most times they are inconclusive and require fine-needle aspiration cytology for confirmation. We report the first case of a dermoid cyst presenting as recurrent pancreatitis in a 49-year-old male. Computed tomography scan, followed by magnetic resonance imaging, showed a complex cystic mass lesion adjacent to the pancreatic tail...
October 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/29118808/pathological-brain-detection-using-weiner-filtering-2d-discrete-wavelet-transform-probabilistic-pca-and-random-subspace-ensemble-classifier
#10
Debesh Jha, Ji-In Kim, Moo-Rak Choi, Goo-Rak Kwon
Accurate diagnosis of pathological brain images is important for patient care, particularly in the early phase of the disease. Although numerous studies have used machine-learning techniques for the computer-aided diagnosis (CAD) of pathological brain, previous methods encountered challenges in terms of the diagnostic efficiency owing to deficiencies in the choice of proper filtering techniques, neuroimaging biomarkers, and limited learning models. Magnetic resonance imaging (MRI) is capable of providing enhanced information regarding the soft tissues, and therefore MR images are included in the proposed approach...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29112948/using-quantitative-features-extracted-from-t2-weighted-mri-to-improve-breast-mri-computer-aided-diagnosis-cad
#11
Cristina Gallego-Ortiz, Anne L Martel
Computer-aided diagnosis (CAD) has been proposed for breast MRI as a tool to standardize evaluation, to automate time-consuming analysis, and to aid the diagnostic decision process by radiologists. T2w MRI findings are diagnostically complementary to T1w DCE-MRI findings in the breast and prior research showed that measuring the T2w intensity of a lesion relative to a tissue of reference improves diagnostic accuracy. The diagnostic value of this information in CAD has not been yet quantified. This study proposes an automatic method of assessing relative T2w lesion intensity without the need to select a reference region...
2017: PloS One
https://www.readbyqxmd.com/read/29107353/ultrasound-imaging-technologies-for-breast-cancer-detection-and-management-a-review
#12
REVIEW
Rongrong Guo, Guolan Lu, Binjie Qin, Baowei Fei
Ultrasound imaging is a commonly used modality for breast cancer detection and diagnosis. In this review, we summarize ultrasound imaging technologies and their clinical applications for the management of breast cancer patients. The technologies include ultrasound elastography, contrast-enhanced ultrasound, 3-D ultrasound, automatic breast ultrasound and computer-aided detection of breast ultrasound. We summarize the study results seen in the literature and discuss their future directions. We also provide a review of ultrasound-guided, breast biopsy and the fusion of ultrasound with other imaging modalities, especially magnetic resonance imaging (MRI)...
October 26, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29106713/a-systematic-review-of-diagnostic-criteria-for-psoriasis-in-adults-and-children-evidence-from-studies-with-a-primary-aim-to-develop-or-validate-diagnostic-criteria
#13
REVIEW
E Burden-Teh, R C Phillips, K S Thomas, S Ratib, D Grindlay, R Murphy
BACKGROUND: The diagnosis of psoriasis in adults and children is made clinically, for both patient management and the selection of participants in research. Diagnostic criteria provide a structure for clinical assessment, which in turn helps standardise patient recruitment into clinical trials and case definitions in observational studies. OBJECTIVE: The aim of this systematic review was to identify and critically appraise the published studies to date that had a primary research aim to develop or validate diagnostic criteria for psoriasis...
November 6, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29104527/brain-mri-pattern-recognition-translated-to-clinical-scenarios
#14
Andreia V Faria, Zifei Liang, Michael I Miller, Susumu Mori
We explored the performance of structure-based computational analysis in four neurodegenerative conditions [Ataxia (AT, n = 16), Huntington's Disease (HD, n = 52), Alzheimer's Disease (AD, n = 66), and Primary Progressive Aphasia (PPA, n = 50)], all characterized by brain atrophy. The independent variables were the volumes of 283 anatomical areas, derived from automated segmentation of T1-high resolution brain MRIs. The segmentation based volumetric quantification reduces image dimensionality from the voxel level [on the order of [Formula: see text](10(6))] to anatomical structures [[Formula: see text](10(2))] for subsequent statistical analysis...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29100847/will-computer-aided-detection-and-diagnosis-revolutionize-colonoscopy
#15
EDITORIAL
Michael F Byrne, Neal Shahidi, Douglas K Rex
No abstract text is available yet for this article.
October 31, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29097410/f-18-fdg-pet-ct-in-erdheim-chester-disease-imaging-findings-and-potential-braf-mutation-biomarker
#16
Jason Young, Geoffrey Bates Johnson, Robert Charles Murphy, Ronald S Go, Stephen M Broski
This study's purpose was to evaluate F-18 fluorodeoxyglucose positron emission tomography - computed tomography (FDG PET-CT) in the diagnosis, management and treatment of Erdheim-Chester disease (ECD). Methods: Our institutional database (2007-2017) was retrospectively reviewed for patients with pathologically-proven ECD. A chart review recorded demographics, clinical information and five categories of clinical impact. Two radiologists in consensus interpreted the images. Imaging findings were correlated with clinical data...
November 2, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29097047/importance-of-better-human-computer-interaction-in-the-era-of-deep-learning-mammography-computer-aided-diagnosis-as%C3%A2-a%C3%A2-use-case
#17
Robert M Nishikawa, Kyongtae T Bae
No abstract text is available yet for this article.
October 30, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29095872/multi-categorical-deep-learning-neural-network-to-classify-retinal-images-a-pilot-study-employing-small-database
#18
Joon Yul Choi, Tae Keun Yoo, Jeong Gi Seo, Jiyong Kwak, Terry Taewoong Um, Tyler Hyungtaek Rim
Deep learning emerges as a powerful tool for analyzing medical images. Retinal disease detection by using computer-aided diagnosis from fundus image has emerged as a new method. We applied deep learning convolutional neural network by using MatConvNet for an automated detection of multiple retinal diseases with fundus photographs involved in STructured Analysis of the REtina (STARE) database. Dataset was built by expanding data on 10 categories, including normal retina and nine retinal diseases. The optimal outcomes were acquired by using a random forest transfer learning based on VGG-19 architecture...
2017: PloS One
https://www.readbyqxmd.com/read/29093385/a-case-of-pneumocystis-pneumonia-secondary-to-idiopathic-cd4-t-lymphocytopenia-a-comparison-of-aids-and-non-aids-patients
#19
Kazuki Sone, Hideki Muramatsu, Makoto Nakao, Yusuke Kagawa, Ryota Kurokawa, Hidefumi Sato, Akio Niimi
A 67-year-old man was admitted to our hospital complaining of dry cough. Chest computed tomography showed diffuse infiltrates and ground-glass opacities in the bilateral lung fields. Transbronchial lung biopsy specimens showed alveoli filled with yeast-like fungi. With a diagnosis of pneumocystis pneumonia (PCP), he was given oral sulfamethoxazole/trimethoprim, to which he responded well. However, seven months later, PCP relapsed. Analyses revealed a low bronchoalveolar lavage fluid CD4/CD8 ratio of 0.04 and CD4+ lymphocytopenia (250/μL)...
November 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29090844/computer-aided-diagnosis-based-on-enhancement-of-degraded-fundus-photographs
#20
Kai Jin, Mei Zhou, Shaoze Wang, Lixia Lou, Yufeng Xu, Juan Ye, Dahong Qian
PURPOSE: Retinal imaging is an important and effective tool for detecting retinal diseases. However, degraded images caused by the aberrations of the eye can disguise lesions, so that a diseased eye can be mistakenly diagnosed as normal. In this work, we propose a new image enhancement method to improve the quality of degraded images. METHODS: A new method is used to enhance degraded-quality fundus images. In this method, the image is converted from the input RGB colour space to LAB colour space and then each normalized component is enhanced using contrast-limited adaptive histogram equalization...
November 1, 2017: Acta Ophthalmologica
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