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Large margin aggregation of local estimates for medical image classification.
In this study, we propose a novel Large Margin Local Estimate (LMLE) method for medical image classification. In the first step, the reference images are subcategorized, and local estimates of the test image are computed based on the reference subcategories. In the second step, the local estimates are fused in a large margin model to derive the similarity level between the test image and the reference images, and the test image is classified accordingly. For evaluation, the LMLE method is applied to classify image patches of different interstitial lung disease (ILD) patterns on high-resolution computed tomography (HRCT) im...
Source: MICCAI International Conference on Medical Image Computing and Computer-Assisted Intervention - June 3, 2015 Category: Radiology Tags: Med Image Comput Comput Assist Interv Source Type: research

Examination frequency and population dose from medical X-ray examinations in Sudan in 2010
This study was performed to estimate examination frequency and collective and per caput effective doses arising from medical X-ray procedures in Sudan, 2010. Information was collected from 30 hospitals performing radiography, computed tomography (CT), fluoroscopy and interventional radiology (IR) procedures. The estimated annual number of examinations was 33 million radiographic X-ray procedures (99 %), 0.34 million CT exams per year (14 % paediatrics CT), 0.02 million fluoroscopy and IR procedures. The estimated annual number of examinations was 326 per 1000 people. The estimated annual collective and per caput effective ...
Source: Radiation Protection Dosimetry - July 13, 2015 Category: Radiology Authors: Suliman, I. I., Ibraheem, S. B., Youssif, B. E., Abdelgabar, M. I., Gafar, R., Elshiekh, E., Ahmed, N. A., Sulieman, A. Tags: Assessment of medical exposure Source Type: research

TAVI: St. Jude Medical wins CE Mark for new Portico sizes
St. Jude Medical (NYSE:STJ) said today that it won CE Mark approval in the European Union 2 new, larger sizes of its Portico replacement heart valve. Little Canada, Minn.-based St. Jude said the approval covers the 27mm and 29mm sizes of the Portico transcatheter aortic valve implant. The 23mm Portico version won CE Mark approval in November 2012, with the 25mm version following suit in December 2013. “Transcatheter aortic valve replacement is a complex procedure, and feedback from physicians worldwide has continued to press upon us the fact that offering a system that provides physicians more control and a simp...
Source: Mass Device - September 18, 2015 Category: Medical Equipment Authors: Brad Perriello Tags: Cardiovascular Regulatory/Compliance Replacement Heart Valves St. Jude Medical Source Type: news

Clear Guide Medical wins 510(k) for Scenergy image guidance
Clear Guide Medical said today it won FDA 510(k) clearance for its Scenergy CT-Ultrasound fusion and image guidance system designed to aid in minimally invasive biopsies and other diagnostic and therapeutic procedures. The system operates through an intelligently integrated display of fused ultrasound and CT images, and will be sold as an accessory to ultrasound machines, the Baltimore, Md.-based company said. “Scenergy is a real advance for image-guided interventions. Because Scenergy is installed onto existing equipment, it can quickly be adopted in many different locations, benefitting patients sooner. We believe ...
Source: Mass Device - February 16, 2016 Category: Medical Equipment Authors: Fink Densford Tags: Imaging Clear Guide Medical Source Type: news

Multi-object segmentation framework using deformable models for medical imaging analysis
Abstract Segmenting structures of interest in medical images is an important step in different tasks such as visualization, quantitative analysis, simulation, and image-guided surgery, among several other clinical applications. Numerous segmentation methods have been developed in the past three decades for extraction of anatomical or functional structures on medical imaging. Deformable models, which include the active contour models or snakes, are among the most popular methods for image segmentation combining several desirable features such as inherent connectivity and smoothness. Even though different approaches hav...
Source: Medical and Biological Engineering and Computing - July 24, 2016 Category: Biomedical Engineering Source Type: research

Lantheus Medical Imaging prices $40m offering
Lantheus Medical Imaging (NSDQ:LNTH) last week priced a new $40 million offering, with funds slated to pay down approximately $55 million of the outstanding principal balance under its senior secured credit facilities. In the round, North Billerica, Mass.-based Lantheus will look to float 5.2 million shares of common stock at $7.76 per share, according to an SEC filing. Credit Suisse and Jefferies LLC will act as underwriters in the offering, according to a company press release. In August, Lantheus said it is sold its Australian radiopharmacy servicing business to Global Medical Solutions. As part of the deal, Lantheus...
Source: Mass Device - September 14, 2016 Category: Medical Equipment Authors: Fink Densford Tags: Business/Financial News Imaging Lantheus Medical Imaging Source Type: news

Development of a universal medical X-ray imaging phantom prototype.
Abstract Diagnostic X-ray imaging depends on the maintenance of image quality that allows for proper diagnosis of medical conditions. Maintenance of image quality requires quality assurance programs on the various X-ray modalities, which consist of pro-jection radiography (including mobile X-ray units), fluoroscopy, mammography, and computed tomography (CT) scanning. Currently a variety of modality-specific phantoms are used to perform quality assurance (QA) tests. These phantoms are not only expensive, but suitably trained personnel are needed to successfully use them and interpret the results. The question arose...
Source: Journal of Applied Clinical Medical Physics - November 7, 2016 Category: Physics Authors: Groenewald A, Groenewald WA Tags: J Appl Clin Med Phys Source Type: research

Small Decline In Low-Value Back Imaging Associated With The 'Choosing Wisely Campaign, 2012-14 Medical Imaging
Choosing Wisely was launched by the American Board of Internal Medicine in April 2012 as a patient- and clinician-targeted campaign to reduce potentially unnecessary "low-value" medical services. The campaign’s impact on low- and high-value care beyond its first year is unknown; furthermore, it is unknown whether some patients such as members of consumer-directed health plans and people residing in different US regions have responded more than others. To evaluate the impact of Choosing Wisely, we used commercial insurance claims to track changes in the use of low-value imaging (x-ray, computed tomography, and ma...
Source: Health Affairs - April 3, 2017 Category: Global & Universal Authors: Hong, A. S., Ross-Degnan, D., Zhang, F., Wharam, J. F. Tags: Insurance - Employer-Based System, Quality Of Care, Health Spending, Consumer Issues Medical Imaging Source Type: research

Simplify Medical launches pivotal study of MRI-conditional cervical disc
Simplify Medical said today that it launched a pivotal study of its eponymous cervical disc, which is designed to be safe during magnetic resonance imaging scans. Sunnyvale, Calif.-based Simplify said the implant is “optimized” for MRI scans in that it’s designed to eliminate the imaging artifact created by the metals used in some artificial disc replacements, using a PEEK-on-ceramic construction. The aim is to eliminate the need for computed tomography scans after implantation and the attendant patient exposure to ionizing radiation. The Simplify disc won CE Mark approval in the European Union in Febr...
Source: Mass Device - April 12, 2017 Category: Medical Equipment Authors: Brad Perriello Tags: Clinical Trials Orthopedics Spinal Simplify Medical Source Type: news

Computed tomography findings predicting the success of silodosin for medical expulsive therapy of ureteral stones
Publication date: Available online 3 May 2017 Source:The Kaohsiung Journal of Medical Sciences Author(s): Serdar Celik, Firat Akdeniz, Muge Afsar Yildirim, Ozan Bozkurt, Merve Gursoy Bulut, Mehmet Levent Hacihasanoglu, Omer Demir Aim of the study is to investigate the relationship between non-contrast computed tomography (NCCT) findings and stone expulsion rate with medical expulsive therapy (MET) using silodosin for ureteral stones in male adults. Between January 2014 and June 2015, we retrospectively reviewed the patient charts with uncomplicated ureteral stones on NCCT images, who were treated with silodosin for MET. S...
Source: The Kaohsiung Journal of Medical Sciences - May 4, 2017 Category: Universities & Medical Training Source Type: research

VORTRAN Medical Has Been Granted FDA 510K and CE Certification Approval for The New and Improved Automatic Resuscitator called the GO2VENT
VORTRAN Medical has been granted FDA 510K and CE certification approval for the new and improved automatic resuscitator called the GO2VENT (Gas Operated Ventilator). The latest addition to their product line offers an option for ventilation of patients during an MRI or CT scan. The GO2VENT has been tested per FDA regulations by Dr. Frank Shellock to meet the MRI compatibility testing and has been approved as a MR Conditional device and is perfect for use during a scan. The new model uses Copper springs to remove the chance of artifacts in the MRI picture. The GO2VENT can be used on a wide patient population from 10kg and a...
Source: JEMS Patient Care - May 14, 2017 Category: Emergency Medicine Authors: VORTRAN Medical Tags: Cardiac & Resuscitation Industry News Source Type: news

Effective doses and standardised risk factors from paediatric diagnostic medical radiation exposures: Information for radiation risk communication
ConclusionStandardised risk factors for different radiological and nuclear medicine examinations and an overview of the deleterious effects of ionising radiation and the difficulties encountered in communicating the risks should facilitate risk communication to the patient/carer.
Source: Australasian Radiology - April 1, 2017 Category: Radiology Authors: Giovanni Bibbo Tags: Medical Imaging —Original Article Source Type: research

ConvNet-Based Localization of Anatomical Structures in 3-D Medical Images
Localization of anatomical structures is a prerequisite for many tasks in a medical image analysis. We propose a method for automatic localization of one or more anatomical structures in 3-D medical images through detection of their presence in 2-D image slices using a convolutional neural network (ConvNet). A single ConvNet is trained to detect the presence of the anatomical structure of interest in axial, coronal, and sagittal slices extracted from a 3-D image. To allow the ConvNet to analyze slices of different sizes, spatial pyramid pooling is applied. After detection, 3-D bounding boxes are created by combining the ou...
Source: IEE Transactions on Medical Imaging - July 1, 2017 Category: Biomedical Engineering Source Type: research

Simplify Medical raises $21m for MR-safe cervical disc
Simplify Medical said today that it plans to use its $21 million Series B round to complete a pair of pivotal studies for its namesake cervical disc replacement The round was led by Life Sciences Partners, Sunnyvale, Calif.-based Simplify said, joined by new backer Sectoral Asset Management and M.H. Carnegie, the Australian private equity shop that acquired Simplify in March 2015. The Simplify device is designed to be safe during magnetic resonance imaging scans, in that it’s designed to eliminate the imaging artifact created by the metals used in some artificial disc replacements by using a PEEK-on-ceramic constructi...
Source: Mass Device - July 19, 2017 Category: Medical Devices Authors: Brad Perriello Tags: Funding Roundup Orthopedics Wall Street Beat Simplify Medical Source Type: news

Excellance Finishes New Mobile Stroke Unit Packed With All of the Latest Medical Technology to Diagnose and Treat Strokes
Excellance has delivered a new Mobile Stroke Unit (MSU) to Indiana University Health. These units are best-in-class for saving lives, preserving brain function, reducing post-hospitalization costs, and cutting alarm-to-therapy decision time by half. Indiana University Health Neurology and Neurosurgery features the latest and greatest in the world of healthcare, adding another tool to their stewardship in the world of neurological care and live-saving treatments. The latest in medical technology, the MSU features an onboard mobile CT scanner, lab, and telemedicine unit, allowing the doctor to interface with the unit and ...
Source: JEMS: Journal of Emergency Medical Services News - July 30, 2017 Category: Emergency Medicine Authors: Excellance Tags: Industry News Operations Source Type: news