MRI scan lasting FOUR DAYS has produced the 'most detailed scan of the human brain ever'

Researchers at Massachusetts General Hospital in Boston needed to use the brain of a dead person to get the images. Usual MRI scans take no more than 90 minutes - but this took 100 hours.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news

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Conclusion and Significance: Understanding the participants' lived experiences raised consciousness of the injustices that exist before and during rehabilitation which uncovered pointers to improve local substance addiction rehabilitation programs: use of occupation-based social participation interventions, limitation of occupational therapy services due to lack of human resources reinforcing interprofessional collaboration, a participatory approach is essential in discussing and addressing injustices, and deliberate use of political activities of daily living. PMID: 31322976 [PubMed - as supplied by publisher]
Source: Scandinavian Journal of Occupational Therapy - Category: Occupational Health Tags: Scand J Occup Ther Source Type: research
CONCLUSIONS: The analysis of internal anatomy using CBCT revealed a highly variable distribution of root canals. The most frequent morphology found in mandibular molars in a Chilean population was two roots and three canals. PMID: 31322722 [PubMed - as supplied by publisher]
Source: Folia Morphologica - Category: Anatomy Tags: Folia Morphol (Warsz) Source Type: research
Authors: Miri Rostami SR, Mozaffarzadeh M, Ghaffari-Miab M, Hariri A, Jokerst J Abstract Double-stage delay-multiply-and-sum (DS-DMAS) is an algorithm proposed for photoacoustic image reconstruction. The DS-DMAS algorithm offers a higher contrast than conventional delay-and-sum and delay-multiply and-sum but at the expense of higher computational complexity. Here, we utilized a compute unified device architecture (CUDA) graphics processing unit (GPU) parallel computation approach to address the high complexity of the DS-DMAS for photoacoustic image reconstruction generated from a commercial light-emitting diode (LE...
Source: Ultrasonic Imaging - Category: Radiology Tags: Ultrason Imaging Source Type: research
This study is designed to demonstrate the ability of photoacoustic imaging to noninvasively determine changes in tissue oxygenation that occur in mice's hind limb skeletal muscle as they age. Mice from two age cohorts were scanned bilaterally with a pulsed laser. The photoacoustic signal was unmixed to generate a parametric map of estimated oxygen saturation and then overlaid on grayscale ultrasound images. Tissue oxygenation measured in young and old mice was compared. Photoacoustic imaging visually and quantitatively showed the decrease in skeletal muscle oxygenation that occurs with age. Percent tissue oxygenation decre...
Source: Ultrasonic Imaging - Category: Radiology Tags: Ultrason Imaging Source Type: research
Authors: Andrade VM, Fontenele RC, Souza AC, Almeida CA, Vieira AC, Groppo FC, Freitas DQ, Junior ED Abstract OBJECTIVES: To develop and validate formulas for age and sex estimation based on the pulp cavity volume of teeth using cone-beam computed tomography (CBCT). METHODS: The sample was composed of 116 CBCT scans from Brazilian individuals of both sexes, ranging in age from 13 to 70 years. A total of 232 teeth (upper central incisors and canines) were evaluated. Two calibrated examiners determined pulp cavity volumes using the ITK-SNAP software. Pearson's correlation test was used to assess the correlation b...
Source: Dentomaxillofacial Radiology - Category: Radiology Tags: Dentomaxillofac Radiol Source Type: research
Publication date: September 2019Source: Biomedical Signal Processing and Control, Volume 54Author(s): Biswabandhu Jana, Kamal Oswal, Sankar Mitra, Goutam Saha, Swapna BanerjeeAbstractPeripheral arterial disease (PAD) is a common manifestation of cardiovascular diseases and more prevalent in underdeveloped countries. Ultrasound (US) is one of the preferred non-invasive diagnostic techniques for the evaluation of PAD. This work aims at achieving a low-cost PAD detection technique for mass screening. A computer aided diagnosis (CAD) method has been proposed based on the Doppler blood flow spectrograms of lower limb arteries. ...
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research
Publication date: Available online 19 July 2019Source: The Journal of Chemical ThermodynamicsAuthor(s): Milan Vraneš, Snežana Papović, Sanja Rackov, Khalaf Alenezi, Slobodan Gadžurić, Aleksandar Tot, Branka PilićAbstractIn this work, a series of ionic liquids (ILs) with unsaturated and variety of different alkyl chain lengths, 1–alkyl–3–(3–butenyl)imidazolium bromide (([RC3=Cim][Br]), R = methyl (C1), ethyl (C2) or butyl (C4)) were synthesized in order to provide their physical and electrochemical characteristics before any further step are taken involving them on an industrial scale. Th...
Source: The Journal of Chemical Thermodynamics - Category: Chemistry Source Type: research
In this study, PU foams were prepared with the addition of commercial pigment with different weight ratios (0.1, 0.5 and 2 wt%) as a particulate modifier of PU foams composites. The features of resulting composite foams were evaluated by morphological (Scanning Electron Microscopy, SEM), thermal (Thermogravimetric Analysis, TGA), mechanical (compressive test, three-point bending test, Charpy impact test) and physical properties (apparent density, dimensional stability, contact angle, water uptake, color characteristics). Color analysis reveals that the addition of color pigment in PU foams has greatly improved the color ...
Source: Polymer Testing - Category: Chemistry Source Type: research
Publication date: September 2019Source: Polymer Testing, Volume 78Author(s): Vahid Bagheri, Babak Ghanbarzadeh, Ali Ayaseh, Alireza Ostadrahimi, Ali Ehsani, Mahmood Alizadeh-Sani, Perihan Aysal AdunAbstractIn the present study, new biodegradable nanocomposite films were produced. The effect of wheat gluten (WG) (1–2.5 wt%), carboxymethyl cellulose (CMC) (0.5–1 wt%) and cellulose nanofiber (CNF) (0-10 wt% based on gluten and CMC biopolymers solid matter in each formula) concentration on water vapor permeability (WVP), mechanical and color properties of the biodegradable nanocomposites were investigated usi...
Source: Polymer Testing - Category: Chemistry Source Type: research
Publication date: September 2019Source: Polymer Testing, Volume 78Author(s): R. Polanský, P. Kadlec, P. Slepička, Z. Kolská, V. ŠvorčíkAbstractComposites prepared from low-density polyethylene (LDPE) and tubular halloysite nanotubes (HNTs) with different contents of HNTs were comprehensively tested. HNTs were utilized to suppress the intensity of heat release from the ignition of LDPE. The results revealed that the large polarity discrepancies and high levels of chemical inertness of LDPE and HNTs led to a reduced level of HNT dispersion in the polymer matrix. Nevertheless, even for small quan...
Source: Polymer Testing - Category: Chemistry Source Type: research
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