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https://www.readbyqxmd.com/read/29793134/voxel-based-automated-detection-of-focal-cortical-dysplasia-lesions-using-diffusion-tensor-imaging-and-t2-weighted-mri-data
#1
Yanming Wang, Yawen Zhou, Huijuan Wang, Jin Cui, Benedictor Alexander Nguchu, Xufei Zhang, Bensheng Qiu, Xiaoxiao Wang, Mingwang Zhu
The aim of this study was to automatically detect focal cortical dysplasia (FCD) lesions in patients with extratemporal lobe epilepsy by relying on diffusion tensor imaging (DTI) and T2-weighted magnetic resonance imaging (MRI) data. We implemented an automated classifier using voxel-based multimodal features to identify gray and white matter abnormalities of FCD in patient cohorts. In addition to the commonly used T2-weighted image intensity feature, DTI-based features were also utilized. A Gaussian processes for machine learning (GPML) classifier was tested on 12 patients with FCD (8 with histologically confirmed FCD) scanned at 1...
May 21, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29792368/electrophysiological-multimodal-assessments-improve-outcome-prediction-in-traumatic-cervical-spinal-cord-injury
#2
Markus Hupp, Chiara Pavese, Lucas Bachmann, Rene Koller, Martin Schubert
Outcome prediction after spinal cord injury (SCI) is essential for early counseling and orientation of the rehabilitative intervention. Moreover, prognostication of outcome is crucial to achieve meaningful stratification when conceiving clinical trials. Neurophysiological examinations are commonly employed for prognostication after SCI, but whether neurophysiology could improve the functional prognosis based on clinical predictors remains open. Data of 224 patients included in the European Multicenter Study about Spinal Cord Injury were analyzed with bootstrapping analysis and multivariate logistic regression to derive prediction models of complete functional recovery in chronic stage after traumatic cervical SCI...
May 24, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29791968/multimodality-treatment-of-hepatocellular-carcinoma-how-field-practice-complies-with-international-recommendations
#3
Angelo Sangiovanni, Michela Triolo, Massimo Iavarone, Laura Virginia Forzenigo, Antonio Nicolini, Giorgio Rossi, Vincenzo La Mura, Massimo Colombo, Pietro Lampertico
BACKGROUND: Management of hepatocellular carcinoma (HCC) is framed within standardized protocols released by Scientific Societies, whose applicability and efficacy in field practice need refining. AIM: We evaluated the applicability and effectiveness of guidelines for the treatment of HCC of the American Association for the Study of the Liver (AASLD). METHODS: 370 consecutive cirrhotic patients with de-novo HCC in different stages (253 BCLC A, 66 BCLC B, 51 BCLC C) received treatment through a multidisciplinary team (MDT) decision and were followed until death or end of follow-up...
May 23, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29791509/health-outcomes-and-adherence-to-a-healthy-lifestyle-after-a-multimodal-intervention-in-people-with-multiple-sclerosis-three-year-follow-up
#4
Claudia H Marck, Alysha M De Livera, Chelsea R Brown, Sandra L Neate, Keryn L Taylor, Tracey J Weiland, Emily J Hadgkiss, George A Jelinek
BACKGROUND: Modifiable risk factors such as smoking and sedentary lifestyle adversely affect multiple sclerosis (MS) progression. Few multimodal behavioural interventions have been conducted for people with MS, and follow-up beyond 1 year is rare for lifestyle interventions. This study assessed adoption and adherence to healthy lifestyle behaviours and health outcomes 3 years after a lifestyle modification intervention, using generalized estimating equation models to account for within-participant correlation over time...
2018: PloS One
https://www.readbyqxmd.com/read/29791481/a-semi-nonparametric-poisson-regression-model-for-analyzing-motor-vehicle-crash-data
#5
Xin Ye, Ke Wang, Yajie Zou, Dominique Lord
This paper develops a semi-nonparametric Poisson regression model to analyze motor vehicle crash frequency data collected from rural multilane highway segments in California, US. Motor vehicle crash frequency on rural highway is a topic of interest in the area of transportation safety due to higher driving speeds and the resultant severity level. Unlike the traditional Negative Binomial (NB) model, the semi-nonparametric Poisson regression model can accommodate an unobserved heterogeneity following a highly flexible semi-nonparametric (SNP) distribution...
2018: PloS One
https://www.readbyqxmd.com/read/29791400/temperature-independent-hygrometry-using-micromachined-photonic-crystal-fiber
#6
Pan Zhang, Hangzhou Yang, Kok-Sing Lim, Harith Ahmad, Qiangzhou Rong, Qin Tian, Xiangzi Ding
An in-fiber Mach-Zehnder interferometer (MZI) is proposed and experimentally demonstrated for relative humidity (RH) and temperature measurements. The MZI is formed by a grapefruit-shaped photonic crystal fiber (G-PCF) cascaded with a short section of multimode fiber that serves as a mode coupler. To enhance sensitivity to humidity, femtosecond laser micromachining was performed to remove a portion of cladding of the G-PCF to expose its core to the ambient medium. The output interference spectrum is fast Fourier transformed to produce a spatial frequency spectrum that describes the intensity composition of the cladding modes in the MZI...
May 20, 2018: Applied Optics
https://www.readbyqxmd.com/read/29791363/design-of-a-portable-phantom-device-to-simulate-tissue-oxygenation-and-blood-perfusion
#7
Xiang Lv, Hongyu Chen, Guangli Liu, Shuwei Shen, Qiang Wu, Chuanzhen Hu, Jialuo Li, Erbao Dong, Ronald X Xu
We propose a portable phantom system for calibration and validation of medical optical devices in a clinical setting. The phantom system comprises a perfusion module and an exchangeable tissue-simulating phantom that simulates tissue oxygenation and blood perfusion. The perfusion module consists of a peristaltic pump, two liquid storage units, and two pressure suppressors. The tissue-simulating phantom is fabricated by a three-dimensional (3D) printing process with microchannels embedded to simulate blood vessels...
May 10, 2018: Applied Optics
https://www.readbyqxmd.com/read/29791298/the-influence-of-dopamine-on-cognitive-flexibility-is-mediated-by-functional-connectivity-in-young-but-not-older-adults
#8
Anne S Berry, Vyoma D Shah, William J Jagust
Dopaminergic signaling in striatum is strongly implicated in executive functions including cognitive flexibility. However, there is a paucity of multimodal research in humans defining the nature of relationships between endogenous dopamine, striatal network activity, and cognition. Here, we measured dopamine synthesis capacity in young and older adults using the PET tracer 6-[18 F]fluoro-l- m-tyrosine and examined its relationship with cognitive performance and functional connectivity during an fMRI study of task switching...
May 23, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29790979/petrosal-meningiomas-factors-affecting-outcome-and-the-role-of-intraoperative-multimodal-assistance-to-microsurgery
#9
Francesco Tomasello, Filippo Flavio Angileri, Alfredo Conti, Antonino Scibilia, Salvatore Cardali, Domenico La Torre, Antonino Germanò
BACKGROUND: Petrous meningiomas (PMs) represent a subset of posterior fossa tumors accounting for ∼8% of all intracranial meningiomas. Surgical treatment of PMs is challenging because of their relationships with vital neurovascular structures of the cerebellopontine angle. OBJECTIVE: To investigate independent pre- and intraoperative predictors of PM surgery outcome. METHODS: We reviewed the surgical and outcome data of patients who underwent microsurgical resection of PMs from 1997 to 2016...
May 22, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29790369/an-innovative-perioperative-pain-program-for-chronic-opioid-users-an-academic-medical-center-s-response-to-the-opioid-crisis
#10
Marie N Hanna, Traci J Speed, Ronen Shechter, Michael C Grant, Rosanne Sheinberg, Elizabeth Goldberg, Claudia M Campbell, Nicholas Theodore, Colleen G Koch, Kayode Williams
Increased utilization of prescription opioids for pain management has led to a nationwide public health crisis with alarming rates of addiction and opioid-related deaths. In the surgical setting, opioid prescriptions have been implicated as a contributing factor to the opioid epidemic. The authors developed an innovative model to address aspects of pain management and opioid utilization during preoperative evaluation, acute surgical hospitalization, and postoperative follow-up for chronic opioid users. This program involves multidisciplinary teams that include acute and chronic pain specialists, psychiatrists, integrative medicine specialists, and physical medicine and rehabilitation services...
May 1, 2018: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
https://www.readbyqxmd.com/read/29790360/-current-and-future-pharmacotherapy-of-severe-psychiatric-disorders
#11
Eva Češková
Despite of tremendous development in CNS research, current treatment is suboptimal especially in severe mental disorders. In medicine, there are two main methods of improving the healthcare provided: seeking new treatment procedures and perfecting (optimizing) the existing ones. Optimization of treatment includes not only practical tools such as therapeutic drug monitoring, but also implementation of general trends into the clinical practice. New pharmacological options include drugs aimed at other than monoaminergic systems and old drugs used before the psychopharmacological era...
2018: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/29790055/polybrominated-diphenyl-ethers-pbdes-in-core-sediments-from-creek-ecosystem-occurrence-geochronology-and-source-contribution
#12
Mahesh Tiwari, Sanjay Kumar Sahu, Rahul C Bhangare, P Y Ajmal, Gauri Girish Pandit
The levels of 15 polybrominated diphenyl ether (PBDE) congeners in grab sediment and sediment cores from the Thane creek were monitored for their spatial and temporal distribution. Total PBDE (ΣPBDE) concentrations in grab sediments were ranging from 15.98 to 132.72 ng g-1 dry weight. BDE-209 was the most abundant congener with percentage contribution in the range of 19-35% to total PBDEs. Total PBDE show multimode concentration with depth in sediment, among which mode at a depth of 10 cm is predominant...
May 22, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/29789971/compliance-with-an-enhanced-recovery-after-a-surgery-program-for-patients-undergoing-gastrectomy-for-gastric-carcinoma-a-phase-2-study
#13
Mi Ran Jung, Seong Yeob Ryu, Young Kyu Park, Oh Jeong
BACKGROUND: Enhanced recovery after surgery (ERAS) programs have gained widespread acceptance in different fields of major surgery. However, most elements of perioperative care in ERAS are based on practices that originated from colorectal surgery. This study investigated compliance with the main elements of ERAS for patients undergoing gastrectomy for gastric carcinoma. METHODS: This phase 2 study enrolled 168 patients undergoing elective gastrectomy for gastric carcinoma...
May 22, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29789422/machine-learning-based-radiomics-for-molecular-subtyping-of-gliomas
#14
Chia-Feng Lu, Fei-Ting Hsu, Kevin Li-Chun Hsieh, Yu-Chieh Jill Kao, Sho-Jen Cheng, Justin Bo-Kai Hsu, Ping-Huei Tsai, Ray-Jade Chen, Chao-Ching Huang, Yun Yen, Cheng-Yu Chen
PURPOSE: The new classification announced by the World Health Organization in 2016 recognized five molecular subtypes of diffuse gliomas based on isocitrate dehydrogenase (IDH) and 1p/19q genotypes in addition to histological phenotypes. We aim to determine whether clinical magnetic resonance imaging (MRI) can stratify these molecular subtypes to benefit the diagnosis and monitoring of gliomas. EXPERIMENTAL DESIGN: The data from 456 subjects with gliomas were obtained from The Cancer Imaging Archive...
May 22, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29789268/making-individual-prognoses-in-psychiatry-using-neuroimaging-and-machine-learning
#15
REVIEW
Ronald J Janssen, Janaina Mourão-Miranda, Hugo G Schnack
Psychiatric prognosis is a difficult problem. Making a prognosis requires looking far into the future, as opposed to making a diagnosis, which is concerned with the current state. During the follow-up period, many factors will influence the course of the disease. Combined with the usually scarcer longitudinal data and the variability in the definition of outcomes/transition, this makes prognostic predictions a challenging endeavor. Employing neuroimaging data in this endeavor introduces the additional hurdle of high dimensionality...
April 22, 2018: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29789188/fractures-after-multimodality-treatment-of-soft-tissue-sarcomas-with-isolated-limb-perfusion-and-radiation-likely-to-occur-and-hard-to-heal
#16
J M Seinen, P C Jutte, L B Been, E Pras, H J Hoekstra
OBJECTIVES: Treatment associated fractures (TAFs) are known severe side effects after surgery and radiotherapy for soft tissue sarcoma (STS). There is no literature about TAF after multimodality treatment with isolated limb perfusion (ILP) for locally advanced STS. This study aimed to analyze predictive factors, treatment and outcome for TAF after multimodality treatment with ILP. METHOD: Out of 126 consecutive patients undergoing ILP after 1991 till now, 25 patients were excluded due to no surgery or direct amputation at initial surgery...
April 24, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29788908/perceptions-of-insulin-use-in-type-2-diabetes-in-primary-care-a-thematic-synthesis
#17
Kathy Ellis, Henrietta Mulnier, Angus Forbes
BACKGROUND: Increasing numbers of patients with type 2 diabetes mellitus are progressing to insulin therapy, and despite its potency many such individuals still have suboptimal glycaemic control. Insulin initiation and intensification is now often conducted by Practice Nurses and General Practitioners in many parts of the UK. Therefore, gaining insight into perspectives of patients and primary care clinicians is important in determining self-management and engagement with insulin. A thematic synthesis of studies was conducted exploring the views and experiences of people with type 2 diabetes and of healthcare professionals on insulin use and management in the context of primary care...
May 22, 2018: BMC Family Practice
https://www.readbyqxmd.com/read/29788453/myofascial-findings-and-psychopathological-factors-in-patients-with-chronic-pelvic-pain-syndrome
#18
Susanne G R Klotz, Gesche Ketels, Bernd Löwe, Christian A Brünahl
Objective: Chronic pelvic pain syndrome (CPPS) is a common pain condition with psychosocial and somatic symptoms. Myofascial findings and psychiatric comorbidities are frequent. Therefore, the aim of the study was to analyze myofascial and psychosocial aspects. Furthermore, the study focuses on correlations between these aspects and gender differences in this topic. Design: Cross-sectional study. Setting: Interdisciplinary outpatient clinic for patients with CPPS at the University Medical Centre Hamburg-Eppendorf, Germany...
May 19, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29785294/development-of-a-precision-multimodal-surgical-navigation-system-for-lung-robotic-segmentectomy
#19
Jean Marc Baste, Valentin Soldea, Samy Lachkar, Philippe Rinieri, Mathieu Sarsam, Benjamin Bottet, Christophe Peillon
Minimally invasive sublobar anatomical resection is becoming more and more popular to manage early lung lesions. Robotic-assisted thoracic surgery (RATS) is unique in comparison with other minimally invasive techniques. Indeed, RATS is able to better integrate multiple streams of information including advanced imaging techniques, in an immersive experience at the level of the robotic console. Our aim was to describe three-dimensional (3D) imaging throughout the surgical procedure from preoperative planning to intraoperative assistance and complementary investigations such as radial endobronchial ultrasound (R-EBUS) and virtual bronchoscopy for pleural dye marking...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29784951/tomographic-and-multimodal-scattering-type-scanning-near-field-optical-microscopy-with-peak-force-tapping-mode
#20
Haomin Wang, Le Wang, Devon S Jakob, Xiaoji G Xu
Scattering-type scanning near-field optical microscopy (s-SNOM) enables nanoscale spectroscopic imaging and has been instrumental for many nano-photonic discoveries and in situ studies. However, conventional s-SNOM techniques with atomic force microscopy tapping mode operation and lock-in detections do not provide direct tomographic information with explicit tip-sample distance. Here, we present a non-traditional s-SNOM technique, named peak force scattering-type scanning near-field optical microscopy (PF-SNOM), by combination of peak force tapping mode and time-gated light detection...
May 21, 2018: Nature Communications
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