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Total 93423 results found since Jan 2013.

Procedures of brain death diagnosis and organ explantation in a tertiary medical centre - a retrospective eight-year cohort study
CONCLUSIONS: Ancillary tests to confirm brain death are frequently performed, mainly in resuscitated patients. The delay to surgery for organ explantation after confirmed brain death was longer during day shifts, increased over time and was mainly determined by organ allocation procedures.PMID:36787468 | DOI:10.57187/smw.2023.40029
Source: Swiss Medical Weekly - February 14, 2023 Category: General Medicine Authors: Pascale Grzonka Sira M Baumann Kai Tisljar Sabina Hunziker Stephan Marsch Raoul Sutter Source Type: research

Mechanical and medical imaging properties of 3D-printed materials as tissue equivalent materials
J Appl Clin Med Phys. 2021 Dec 8. doi: 10.1002/acm2.13495. Online ahead of print.ABSTRACTThree materials of polylactic acid (PLA), polyamide 12 (PA12), and light curing resin (LCR) were used to construct phantom using 3D printing technology. The mechanical and medical imaging properties of the three materials, such as elastic modulus, density, effective atomic number, X-ray attenuation coefficient, computed tomography (CT) number, and acoustic properties, were investigated. The results showed that the elastic modulus for PLA was 1.98 × 103 MPa, for PA12 was 848 MPa, for LCR was 1.18×103 MPa, and that of three materials w...
Source: Journal of Applied Clinical Medical Physics - December 8, 2021 Category: Physics Authors: Depeng Ma Ronghui Gao Minghui Li Jianfeng Qiu Source Type: research

How Much Do CT Scans Increase the Risk of Cancer?
Ever since physicians started regularly ordering CT (computed tomography) scans four decades ago, researchers have worried that the medical imaging procedure could increase a patient's risk of developing cancer. CT scanners bombard the human body with x-ray beams, which can damage DNA and create mutations that spur cells to grow into tumors. [More]
Source: Scientific American - Official RSS Feed - July 9, 2013 Category: Science Tags: Health,Health,Medical Technology,Everyday Science,More Science,Biology,Society & Policy Source Type: research

Therapeutic Effect of Medical Ozone on Lumbar Disc Herniation.
CONCLUSIONS Low concentrations of medical ozone (20 μg/ml and 40 μg/ml) reduced the serum IL-6, IgG, and IgM expression, presenting as analgesic and anti-inflammatory effects, while high concentrations of medical ozone (60 μg/ml) increased the serum IL-6, IgG, IgM expression, presenting as pain and pro-inflammatory effects. The medical ozone concentration of 40 μg/ml showed the optimal treatment efficacy. PMID: 29611536 [PubMed - in process]
Source: Medical Science Monitor - April 4, 2018 Category: Research Tags: Med Sci Monit Source Type: research

UMass Medical Using ‘Virtual Anatomy’ To Teach Students
BOSTON (CBS) — Human anatomy is one of the first courses a student has to take in medical school to study the body’s organs, nerves, vessels and more. Human cadavers have always been used for this purpose and probably always will be but UMass Medical School now has a new, high-tech tool at their disposal which is giving doctors a view into the body like never before. Third year medical students Scott Pascal and Pamela Lu are getting a lesson on human anatomy, but instead of dissecting a cadaver, they’re viewing the deep layers of the human body using this virtual anatomy table. “Going through anatom...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - April 28, 2014 Category: Consumer Health News Authors: Kckatzman Tags: Health Local News Seen On WBZ-TV Syndicated Local Watch Listen CBS Boston Mallika Marshall UMass Medical Virtual anatomy Source Type: news

Adopting Quaternion Wavelet Transform to Fuse Multi-Modal Medical Images.
Authors: Geng P, Sun X, Liu J Abstract Medical image fusion plays an important role in clinical applications such as image-guided surgery, image-guided radiotherapy, noninvasive diagnosis, and treatment planning. In this paper, we propose a novel multi-modal medical image fusion method based on simplified pulse-coupled neural network and quaternion wavelet transform. The proposed fusion algorithm is capable of combining not only pairs of computed tomography (CT) and magnetic resonance (MR) images, but also pairs of CT and proton-density-weighted MR images, and multi-spectral MR images such as T1 and T2. Experiments...
Source: Journal of Medical and Biological Engineering - May 16, 2018 Category: Biomedical Engineering Tags: J Med Biol Eng Source Type: research

Image fusion using hybrid methods in multimodality medical images
AbstractAn image fusion based on multimodal medical images renders a considerable enhancement in the quality of fused images. An effective image fusion technique produces output images by preserving all the viable and prominent information gathered from the source images without any introduction of flaws or unnecessary distortions. This review paper intends to bring out the process of image fusion, its utilization in the medical domain, merits, and demerits and reviews the perspective of multimodal medical image fusion. It also discusses the involvement of various medical entities like medical resonance imaging (MRI), posi...
Source: Medical and Biological Engineering and Computing - January 27, 2020 Category: Biomedical Engineering Source Type: research

Coronary computed tomography angiography versus invasive coronary angiography: medical staff perceptions and diagnostic interest in Gaza-Palestine
ConclusionEfficient diagnostic benefits of CCTA and overuse of ICA for stable CAD are documented. Clear diagnostic strategy with medical, ethical, and logistical issues should be considered when selecting the CCTA or ICA for diagnosis CAD.
Source: Irish Journal of Medical Science - September 24, 2020 Category: General Medicine Source Type: research

An active contour model for medical image segmentation with application to brain CT image.
Conclusions: Their region-based active contour model has the ability to achieve accurate segmentation results in images with high noise level and intensity inhomogeneity. Therefore, their method has great potential in the segmentation of medical images and would be useful for developing CAD schemes for acute ischemic stroke in brain CT images. PMID: 23387759 [PubMed - in process]
Source: Medical Physics - February 1, 2013 Category: Physics Authors: Qian X, Wang J, Guo S, Li Q Tags: Med Phys Source Type: research