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https://www.readbyqxmd.com/read/28212092/modeling-contrast-imaging-assisted-optimal-targeted-drug-delivery-a-touchable-communication-channel-estimation-and-waveform-design-perspective
#1
Yifan Chen, Yu Zhou, Ross Murch, Panagiotis Kosmas
To maximize the effect of treatment and minimize the adverse effect on patients, we propose to optimize nanorobotsassisted targeted drug delivery (TDD) for locoregional treatment of tumor from the perspective of touchable communication channel estimation and waveform design. The drug particles are the information molecules; the loading/injection and unloading of the drug correspond to the transmitting and receiving processes; the concentration-time profile of the drug particles administered corresponds to the signalling pulse...
February 15, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28211540/quantitative-evaluation-on-the-characteristics-of-activated-sludge-granules-and-flocs-using-a-fuzzy-entropy-based-approach
#2
Fang Fang, Li-Li Qiao, Bing-Jie Ni, Jia-Shun Cao, Han-Qing Yu
Activated sludge granules and flocs have their inherent advantages and disadvantages for wastewater treatment due to their different characteristics. So far quantitative information on their evaluation is still lacking. This work provides a quantitative and comparative evaluation on the characteristics and pollutant removal capacity of granules and flocs by using a new methodology through integrating fuzzy analytic hierarchy process, accelerating genetic algorithm and entropy weight method. Evaluation results show a higher overall score of granules, indicating that granules had more favorable characteristics than flocs...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211070/use-of-proximal-operator-graph-solver-for-radiation-therapy-inverse-treatment-planning
#3
Xinmin Liu, Charles Pelizzari, Andrew H Belcher, Zachary Grelewicz, Rodney D Wiersma
PURPOSE: Most radiation therapy optimization problems can be formulated as an unconstrained problem and solved efficiently by quasi-Newton methods such as the Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) algorithm. However, several next generation planning techniques such as total variation regularization based optimization and MV+kV optimization, involve constrained or mixed-norm optimization, and cannot be solved by quasi-Newton methods. Using standard optimization algorithms on such problems often leads to prohibitively long optimization times and large memory requirements...
February 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28210940/syndromic-diagnosis-in-evaluation-of-women-with-symptoms-of-vaginitis
#4
REVIEW
Theophilus Ogochukwu Nwankwo, Uzochukwu Uzoma Aniebue, Uchenna Anthony Umeh
PURPOSE OF REVIEW: This review aims to determine the effectiveness of the use of syndrome diagnosis in the evaluation of vaginitis and to make suggestions based on the review findings. RECENT FINDINGS: Vaginal discharge as the main symptom of vaginitis is unspecific. A randomized study of symptom-based diagnosis and treatment of vaginitis in the USA favored symptoms used for treatment; however, this was only a pilot study. Hence, a population-based study is necessary to validate these findings...
January 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28210788/surgical-management-of-degenerative-meniscus-lesions-the-2016-esska-meniscus-consensus
#5
Ph Beaufils, R Becker, S Kopf, M Englund, R Verdonk, M Ollivier, R Seil
PURPOSE: A degenerative meniscus lesion is a slowly developing process typically involving a horizontal cleavage in a middle-aged or older person. When the knee is symptomatic, arthroscopic partial meniscectomy has been practised for a long time with many case series reporting improved patient outcomes. Since 2002, several randomised clinical trials demonstrated no additional benefit of arthroscopic partial meniscectomy compared to non-operative treatment, sham surgery or sham arthroscopic partial meniscectomy...
February 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28209395/highlights-from-the-2016-hiv-diagnostics-conference-the-new-landscape-of-hiv-testing-in-laboratories-public-health-programs-and-clinical-practice
#6
Laura G Wesolowski, Monica M Parker, Kevin P Delaney, S Michele Owen
The 2016 HIV Diagnostics Conference, held in Atlanta, Georgia, was attended by public health officials, laboratorians, HIV testing program managers, surveillance coordinators and industry representatives. The conference addressed test performance data, the implementation of new testing algorithms, quality assurance, and the application of new tests in a variety of settings. With regard to the recommended Centers for Disease Control and Prevention/Association of Public Health Laboratories HIV laboratory testing algorithm, the conference featured performance data, implementation challenges such as a lack of test options for the second and third steps, as well as data needs for new tests that may be used as part of the algorithm...
February 7, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28209089/regarding-management-of-acute-mesenteric-ischemia-a-critical-review-and-treatment-algorithm
#7
Zhongzhi Jia, Feng Tian, Guomin Jiang
No abstract text is available yet for this article.
February 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28208760/mdaral-a-multi-radio-version-for-the-daral-routing-algorithm
#8
Francisco José Estévez, José María Castillo-Secilla, Jesús González, Joaquín Olivares, Peter Glösekötter
Smart Cities are called to change the daily life of human beings. This concept permits improving the efficiency of our cities in several areas such as the use of water, energy consumption, waste treatment, and mobility both for people as well as vehicles throughout the city. This represents an interconnected scenario in which thousands of embedded devices need to work in a collaborative way both for sensing and modifying the environment properly. Under this scenario, the majority of devices will use wireless protocols for communicating among them, representing a challenge for optimizing the use of the electromagnetic spectrum...
February 9, 2017: Sensors
https://www.readbyqxmd.com/read/28208201/catheter-based-approaches-for-the-treatment-of-acute-pulmonary-embolism
#9
Victor F Tapson, David Jimenez
Except when contraindicated, anticoagulation should be initiated when pulmonary embolism (PE) is strongly suspected and the bleeding risk is perceived to be low, even if the evaluation has not been completed. Low-risk patients with acute PE are simply continued on anticoagulation. Severely ill patients with high-risk (massive) PE require aggressive therapy, and if the bleeding risk is acceptable, systemic thrombolysis should be considered. However, despite clear evidence that parenteral thrombolytic therapy leads to more rapid clot resolution than anticoagulation alone, the risk of major bleeding including intracranial bleeding is significantly higher with thrombolytic therapy...
February 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28208197/reversal-of-direct-oral-anticoagulants-current-status-and-future-directions
#10
Jeffrey I Weitz
Direct oral anticoagulants (DOACs) are increasingly used for prevention and treatment of venous thromboembolism and for prevention of stroke in patients with nonvalvular atrial fibrillation. In phase III clinical trials that included more than 100,000 patients, the DOACs were at least as effective as vitamin K antagonists (VKAs) and were associated with less serious bleeding, particularly less intracranial bleeding. Real-world evidence supports these outcomes. Despite this, some physicians and patients are concerned about serious bleeding or emergencies unless specific reversal agents for the DOACs are available...
February 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28207664/descriptive-analysis-of-spinal-neuroaxial-injections-surgical-interventions-and-physical-therapy-utilization-for-degenerative-lumbar-spondylolisthesis-within-medicare-beneficiaries-from-2000-to-2011
#11
Joseph A Sclafani, Alexandra Constantin, Pei-Shu Ho, Venu Akuthota, Leighton Chan
STUDY DESIGN: A retrospective, observational study. OBJECTIVE: The aim of this study was to determine the utilization of various treatment modalities in the management of degenerative spondylolisthesis within Medicare beneficiaries. SUMMARY OF BACKGROUND DATA: Degenerative lumbar spondylolisthesis is a condition often identified in symptomatic low back pain. A variety of treatment algorithms including physical therapy and interventional techniques can be used to manage clinically significant degenerative spondylolisthesis...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207620/maintenance-of-segmental-lordosis-and-disk-height-in-stand-alone-and-instrumented-extreme-lateral-interbody-fusion-xlif
#12
Gregory M Malham, Ngaire J Ellis, Rhiannon M Parker, Carl M Blecher, Rohan White, Ben Goss, Kevin A Seex
STUDY DESIGN: A prospective single-surgeon nonrandomized clinical study. OBJECTIVE: To evaluate the radiographic and clinical outcomes, by fixation type, in extreme lateral interbody fusion (XLIF) patients and provide an algorithm for determining patients suitable for stand-alone XLIF. SUMMARY OF BACKGROUND DATA: XLIF may be supplemented with pedicle screw fixation, however, since stabilizing structures remain intact, it is suggested that stand-alone XLIF can be used for certain indications...
March 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28206731/thrombus-resolution-and-right-ventricular-functional-recovery-using-ultrasound-accelerated-thrombolysis-in-acute-massive-and-submassive-pulmonary-embolism
#13
Evren Ozcinar, Mehmet Cakici, Nur Dikmen Yaman, Cagdas Baran, Anar Aliyev, Bahadir Inan, Serkan Durdu, Ahmet R Akar, Mustafa Sirlak
BACKGROUND: This study aims to evaluate the efficacy and safety of ultrasound-accelerated catheter- directed thrombolysis (UACDT) in the treatment of massive and submassive pulmonary embolism (PE). METHODS: We conducted a prospective, observational cohort study of consequtive patients with massive or submassive PE treated with low-dose UACDT using EKOS EkoSonic® system at single center from May 2014 until April 2015. Overall, thirty-eight patients (median age, 64...
February 15, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28206676/thoracic-ct-mri-co-registration-for-regional-pulmonary-structure-function-measurements-of-obstructive-lung-disease
#14
Fumin Guo, Sarah Svenningsen, Miranda Kirby, Dante P I Capaldi, Khadija Sheikh, Aaron Fenster, Grace Parraga
PURPOSE: Recent pulmonary imaging research has revealed that in patients with chronic obstructive pulmonary disease (COPD) and asthma, structural and functional abnormalities are spatially heterogeneous. This novel information may help optimize treatment in individual patients, monitor interventional efficacy and develop new treatments. Moreover, by automating the measurement of regional biomarkers for the 19 different anatomical lung segments, there is an opportunity to embed imaging biomarkers into clinically-acceptable clinical workflows and improve lung disease clinical care...
February 16, 2017: Medical Physics
https://www.readbyqxmd.com/read/28205478/scaphotrapeziotrapezoidal-joint-osteoarthritis-a-systematic-review-of-surgical-treatment
#15
Victoria M Deans, Zafar Naqui, Lindsay T S W Muir
BACKGROUND: The management of scaphotrapeziotrapezoidal (STT) joint osteoarthritis (OA) remains controversial. This systematic review aims to review the evidence for surgical interventions specific to STT OA. METHODS: Medline and Embase libraries were searched using a pre-defined search strategy in October 2014. All study designs and languages were included and evaluated by two reviewers (VMD and LM) against the inclusion/exclusion criteria. The study eligibility criteria included papers discussing surgical treatment of STT OA, and the review was conducted using the PRISMA guidelines...
March 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28205307/segmentation-of-organs-at-risks-in-head-and-neck-ct-images-using-convolutional-neural-networks
#16
Bulat Ibragimov, Lei Xing
PURPOSE: Accurate segmentation of organs-at-risks (OARs) is the key step for efficient planning of radiation therapy for head and neck (HaN) cancer treatment. In the work, we proposed the first deep learning-based algorithm, for segmentation of OARs in HaN CT images, and compared its performance against state-of-the-art automated segmentation algorithms, commercial software, and interobserver variability. METHODS: Convolutional neural networks (CNNs)-a concept from the field of deep learning-were used to study consistent intensity patterns of OARs from training CT images and to segment the OAR in a previously unseen test CT image...
February 2017: Medical Physics
https://www.readbyqxmd.com/read/28205212/sarcoidosis-extent-relates-to-molecular-variability
#17
Calixte S Monast, Katherine Li, Marc A Judson, Robert P Baughman, Eric Wadman, Rosemary Watt, Philip E Silkoff, Elliot S Barnathan, Carrie Brodmerkel
The molecular basis of sarcoidosis phenotype heterogeneity and its relationship to effective treatment of sarcoidosis have not been elucidated. Peripheral samples from sarcoidosis subjects who participated in a phase 2 study of golimumab (anti-TNFα) and ustekinumab (anti-IL12p40) were used to measure the whole blood transcriptome and levels of serum proteins. Differential gene and protein expression analyses were used to explore the molecular differences between sarcoidosis phenotypes as defined by extent of organ involvement...
February 16, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28204986/validation-workflow-for-a-clinical-bayesian-network-model-in-multidisciplinary-decision-making-in-head-and-neck-oncology-treatment
#18
Mario A Cypko, Matthaeus Stoehr, Marcin Kozniewski, Marek J Druzdzel, Andreas Dietz, Leonard Berliner, Heinz U Lemke
PURPOSE: Oncological treatment is being increasingly complex, and therefore, decision making in multidisciplinary teams is becoming the key activity in the clinical pathways. The increased complexity is related to the number and variability of possible treatment decisions that may be relevant to a patient. In this paper, we describe validation of a multidisciplinary cancer treatment decision in the clinical domain of head and neck oncology. METHOD: Probabilistic graphical models and corresponding inference algorithms, in the form of Bayesian networks, can support complex decision-making processes by providing a mathematically reproducible and transparent advice...
February 15, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28203283/current-and-emergent-pharmacologic-treatments-for-irritable-bowel-syndrome-with-diarrhea-evidence-based-treatment-in-practice
#19
REVIEW
Susan Lucak, Lin Chang, Albena Halpert, Lucinda A Harris
Irritable bowel syndrome with diarrhea (IBS-D) is a common, chronic functional gastrointestinal disorder with symptoms that can be distressing for patients and often result in substantially impaired quality of life. This review focuses on providing clinicians with information on practical, evidence-based treatment for IBS-D. Current therapies commonly used for the treatment of IBS-D, including pharmacologic and nonpharmacologic interventions, are briefly reviewed, followed by discussion of the emergent pharmacologic treatments (rifaximin and eluxadoline) and medical foods (IBgard(®) and EnteraGam(®))...
February 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28199375/has-universal-screening-with-xpert%C3%A2-mtb-rif-increased-the-proportion-of-multidrug-resistant-tuberculosis-cases-diagnosed-in-a-routine-operational-setting
#20
Pren Naidoo, Rory Dunbar, Judy Caldwell, Carl Lombard, Nulda Beyers
SETTING: Primary health services in Cape Town, South Africa where the introduction of Xpert® MTB/RIF (Xpert) enabled simultaneous screening for tuberculosis (TB) and drug susceptibility in all presumptive cases. STUDY AIM: To compare the proportion of TB cases with drug susceptibility tests undertaken and multidrug-resistant tuberculosis (MDR-TB) diagnosed pre-treatment and during the course of 1st line treatment in the previous smear/culture and the newly introduced Xpert-based algorithms...
2017: PloS One
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