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https://www.readbyqxmd.com/read/28338469/the-utility-of-thyroid-ultrasonography-in-the-management-of-thyroid-nodules
#1
Gary Gamme, Tyler Parrington, Edward Wiebe, Sunita Ghosh, Brendan Litt, David C Williams, Todd P W McMullen
BACKGROUND: Ultrasonography for thyroid nodules is one of the most common imaging tests performed in the general population. Details from ultrasound reports guide biopsies and surgery. This study quantifies the completeness of these reports based on Thyroid Imaging and Reporting System (TI-RADS) criteria and considers their utility in predicting malignant disease. METHODS: We retrospectively reviewed ultrasound reports for 329 thyroidectomy patients and extracted data elements using the TI-RADS criteria: nodule size, echogenicity, margins, vascularity, solid/cystic composition and the presence or absence of microcalcifications and the halo sign...
April 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28327935/science-in-the-cloud-sic-a-use-case-in-mri-connectomics
#2
Gregory Kiar, Krzysztof J Gorgolewski, Dean Kleissas, William Gray Roncal, Brian Litt, Brian Wandell, Russel A Poldrack, Martin Wiener, R Jacob Vogelstein, Randal Burns, Joshua T Vogelstein
Modern technologies are enabling scientists to collect extraordinary amounts of complex and sophisticated data across a huge range of scales like never before. With this onslaught of data, we can allow the focal point to shift from data collection to data analysis. Unfortunately, lack of standardized sharing mechanisms and practices often make reproducing or extending scientific results very difficult. With the creation of data organization structures and tools which drastically improve code portability, we now have the opportunity to design such a framework for communicating extensible scientific discoveries...
March 7, 2017: GigaScience
https://www.readbyqxmd.com/read/28324881/optic-radiation-tractography-and-visual-field-deficits-in-laser-interstitial-thermal-therapy-for-amygdalohippocampectomy-in-patients-with-mesial-temporal-lobe-epilepsy
#3
Dali Yin, John A Thompson, Cornelia Drees, Steven G Ojemann, Lidia Nagae, Victoria S Pelak, Aviva Abosch
BACKGROUND/AIMS: Laser interstitial thermal therapy (LITT) has become an alternative to open-resective surgery for refractory mesial temporal lobe epilepsy (MTLE). Occurrence of visual field defects (VFDs) following open surgery for MTLE is reported at 52-100%. We examined the rate of VFDs following LITT for amygdalohippocampectomy (AHE) and correlated the occurrence of VFDs with damage to the optic radiations, assessed by diffusion tensor tractography (DTI). METHODS: We performed a retrospective analysis of 5 patients who underwent LITT-AHE for medically refractory MTLE...
March 22, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28303256/recurring-functional-interactions-predict-network-architecture-of-interictal-and-ictal-states-in-neocortical-epilepsy
#4
Ankit N Khambhati, Danielle S Bassett, Brian S Oommen, Stephanie H Chen, Timothy H Lucas, Kathryn A Davis, Brian Litt
Human epilepsy patients suffer from spontaneous seizures, which originate in brain regions that also subserve normal function. Prior studies demonstrate focal, neocortical epilepsy is associated with dysfunction, several hours before seizures. How does the epileptic network perpetuate dysfunction during baseline periods? To address this question, we developed an unsupervised machine learning technique to disentangle patterns of functional interactions between brain regions, or subgraphs, from dynamic functional networks constructed from approximately 100 h of intracranial recordings in each of 22 neocortical epilepsy patients...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28281498/from-resection-to-ablation-a-review-of-resective-surgical-options-for-temporal-lobe-epilepsy-and-rationale-for-an-ablation-based-approach
#5
REVIEW
Anne Coyle, Jonathan Riley, Chengyuan Wu, Ashwini Sharan
Surgical intervention is of proven benefit in an appropriately selected subset of patients with medically refractory temporal lobe epilepsy. In these patients, a surgical cure both provides the quality of life improvement that comes from seizure freedom as well as a survival benefit. However, patients who undergo open surgical intervention may have a worsening in neurobehavioral outcomes. Laser interstitial thermal therapy (LITT) represents a minimally invasive surgical intervention that has shown promise in improving post-operative neurobehavioral outcomes...
2017: Neurology India
https://www.readbyqxmd.com/read/28244590/laser-thermal-ablation-for-mesiotemporal-epilepsy-analysis-of-ablation-volumes-and-trajectories
#6
Walter J Jermakowicz, Andres M Kanner, Samir Sur, Christina Bermudez, Pierre-Francois D'Haese, John Paul G Kolcun, Iahn Cajigas, Rui Li, Carlos Millan, Ramses Ribot, Enrique A Serrano, Naymee Velez, Merredith R Lowe, Gustavo J Rey, Jonathan R Jagid
OBJECTIVE: To identify features of ablations and trajectories that correlate with optimal seizure control and minimize the risk of neurocognitive deficits in patients undergoing laser interstitial thermal therapy (LiTT) for mesiotemporal epilepsy (mTLE). METHODS: Clinical and radiographic data were reviewed from a prospectively maintained database of all patients undergoing LiTT for the treatment of mTLE at the University of Miami Hospital. Standard preoperative and postoperative evaluations, including contrast-enhanced magnetic resonance imaging (MRI) and neuropsychological testing, were performed in all patients...
February 28, 2017: Epilepsia
https://www.readbyqxmd.com/read/28199998/delayed-intraparenchymal-and-intraventricular-hemorrhage-requiring-surgical-evacuation-after-mri-guided-laser-interstitial-thermal-therapy-for-lesional-epilepsy
#7
Sean M Barber, Luke Tomycz, Timothy George, Dave F Clarke, Mark Lee
BACKGROUND: Symptomatic intracranial hemorrhage is a rare complication of laser interstitial thermal therapy (LITT). OBJECTIVES: To present a unique case of delayed symptomatic intracranial hemorrhage occurring after a LITT procedure for epilepsy in a high-volume center (68 LITT procedures for pediatric epilepsy have been performed). METHODS: An 18-year-old male with epilepsy underwent LITT to an area of heterotopia near the right lateral ventricle...
February 16, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28183124/addendum-to-kirwan-i-et-al-i-2016-i-zootaxa-i-4121-1-89-94
#8
Normand David, Steven M S Gregory, Guy M Kirwan, James A Jobling, Frank D Steinheimer, Guilherme Renzo Rocha Brito
Following the publication of Kirwan et al. (2016), it has been brought to our attention that the treatment of any possible alternative genus-group name for Parus pipra Linnaeus, 1758, when treated as monotypic, was not as self-evident to others as it was to the authors. As there is no "case law" in Zoological Nomenclature, and whatever conclusions we reached were naturally subject to our interpretation of the Code (ICZN 1999), and may not necessarily accord with the views of others, we have revisited "Pythis Viell...
January 6, 2017: Zootaxa
https://www.readbyqxmd.com/read/28095688/effect-of-gold-nanoparticle-size-and-coating-on-labeling-monocytes-for-ct-tracking
#9
Peter Chhour, Johoon Kim, Barbara Benardo, Alfredo Tovar, Shaameen Mian, Harold I Litt, Victor A Ferrari, David P Cormode
With advances in cell therapies, interest in cell tracking techniques to monitor the migration, localization, and viability of these cells continues to grow. X-ray computed tomography (CT) is a cornerstone of medical imaging but has been limited in cell tracking applications due to its low sensitivity toward contrast media. In this study, we investigate the role of size and surface functionality of gold nanoparticles for monocyte uptake to optimize the labeling of these cells for tracking in CT. We synthesized gold nanoparticles (AuNP) that range from 15 to 150 nm in diameter and examined several capping ligands, generating 44 distinct AuNP formulations...
January 18, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28057690/related-allopolyploids-display-distinct-floral-pigment-profiles-and-transgressive-pigments
#10
Elizabeth W McCarthy, Andrea E Berardi, Stacey D Smith, Amy Litt
PREMISE OF THE STUDY: Both polyploidy and shifts in floral color have marked angiosperm evolution. Here, we investigate the biochemical basis of the novel and diverse floral phenotypes seen in allopolyploids in Nicotiana (Solanaceae) and examine the extent to which the merging of distinct genomes alters flavonoid pigment production. METHODS: We analyzed flavonol and anthocyanin pigments from Nicotiana allopolyploids of different ages (N. tabacum, 0.2 million years old; several species from Nicotiana section Repandae, 4...
January 5, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28046666/su-f-j-03-treatment-planning-for-laser-ablation-therapy-in-presence-of-heterogeneous-tissue-a-retrospective-study
#11
R Madankan, C MacLellan, S Fahrenholtz, J Weinberg, G Rao, J Hazle, R Stafford, D Fuentes
PURPOSE: MR guided Laser Induced Thermal Therapy (MRgLITT) is an effective technique for cancerous tissue destruction in brain. Precise modeling of the thermal ablation procedure is important for treatment planning for MRgLITT. Physical properties of target tissue such as optical attenuation (µ) highly affect the outcome of thermal ablation modeling. Hence to ensure accuracy of modeling scheme, it is crucial to precisely estimate patient specific heterogeneity in these parameters. METHODS: A steady-state Bioheat model is used for simulation of temperature field over the heterogeneous target tissue...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28009635/perioperative-and-anesthetic-considerations-for-neurosurgical-laser-interstitial-thermal-therapy-ablations
#12
Federico Jimenez-Ruiz, Benjamin Arnold, Claudio E Tatsui, Juan P Cata
OBJECTIVE: To describe the anesthetic considerations in patients undergoing laser interstitial thermal therapy (LITT) for neurosurgical procedures. BACKGROUND: LITT for neurosurgical procedures is being increasingly used in a variety of central nervous system diseases. Several studies have demonstrated promising results including a shorter hospital stay. Given the rising trend for the use of LITT, anesthesiologists need to be familiar with the anesthetic considerations to provide care for patients undergoing these types of procedures...
December 22, 2016: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28003942/clinical-usage-and-economic-effectiveness-of-a-recently-developed-epidermal-autograft-harvesting-system-in-13-chronic-wound-patients-in-a-university-based-wound-center
#13
Angela Hulsey, Paul Linneman, Jeff Litt
INTRODUCTION:  Chronic wounds are a significant healthcare problem in the United States. Their costs approach 25 billion dollars in the United States. Current wound-care treatments of local wound care, moist dressings, and source control, while necessary for wound healing, are frequently not enough to ensure complete wound closure. The current surgical technique of split-thickness skin grafting is an operative procedure, painful, time-consuming, and leaves significant donor site wounds...
November 14, 2016: Curēus
https://www.readbyqxmd.com/read/27995431/prototype-willingness-model-drinking-cognitions-mediate-personalized-normative-feedback-efficacy
#14
Melissa A Lewis, Dana M Litt, Mary Tomkins, Clayton Neighbors
Personalized normative feedback (PNF) interventions have been shown to be efficacious at reducing college student drinking. Because descriptive norms have been shown to mediate PNF efficacy, the current study focused on examining additional prototype willingness model social reaction cognitions, namely, prototypes and willingness, as mediators of intervention efficacy. We expected the PNF interventions to be associated with increased prototype favorability of students who do not drink, which would in turn be associated with decreased willingness to drink and subsequently, less drinking...
December 19, 2016: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/27995263/outpatient-management-of-transient-ischaemic-attack
#15
Victor Weng Keong Loh, Derek Tuck Loong Soon, Leonard Leong Litt Yeo
Stroke is a significant cause of death and disability in Singapore; in 2014, it was the fourth most common cause of death. Transient ischaemic attack (TIA) is defined as a transient episode of neurological dysfunction caused by focal brain, spinal cord or retinal ischaemia without evidence of acute infarction. The diagnosis of TIA/acute stroke needs to be considered in all patients who present with sudden focal neurological dysfunction. Prompt referral for assessment, neuroimaging and intervention provides the best chance for neurological recovery and/or minimising further neurological damage...
December 2016: Singapore Medical Journal
https://www.readbyqxmd.com/read/27995127/stereotactic-laser-ablation-for-medically-intractable-epilepsy-the-next-generation-of-minimally-invasive-epilepsy-surgery
#16
REVIEW
Michael J LaRiviere, Robert E Gross
Epilepsy is a common, disabling illness that is refractory to medical treatment in approximately one-third of patients, particularly among those with mesial temporal lobe epilepsy. While standard open mesial temporal resection is effective, achieving seizure freedom in most patients, efforts to develop safer, minimally invasive techniques have been underway for over half a century. Stereotactic ablative techniques, in particular, radiofrequency (RF) ablation, were first developed in the 1960s, with refinements in the 1990s with the advent of modern computed tomography and magnetic resonance-based imaging...
2016: Frontiers in Surgery
https://www.readbyqxmd.com/read/27993917/visceral-artery-aneurysms-an-atypical-presentation-of-large-vessel-vasculitis
#17
Brendan Litt, Benedetto Mussari, Gabrielle Gauvin, David Alcoloumbre
No abstract text is available yet for this article.
December 19, 2016: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/27940712/strengthening-early-intervention-for-very-preterm-infants
#18
Marie C McCormick, Jonathan S Litt
No abstract text is available yet for this article.
December 2016: Pediatrics
https://www.readbyqxmd.com/read/27940511/the-outcomes-of-very-preterm-infants-is-it-time-to-ask-different-questions
#19
Marie C McCormick, Jonathan S Litt
No abstract text is available yet for this article.
January 2017: Pediatrics
https://www.readbyqxmd.com/read/27905093/magnetic-resonance-imaging-guided-laser-interstitial-thermal-therapy-for-treatment-of-drug-resistant-epilepsy
#20
Joon Y Kang, Michael R Sperling
Surgery is the most effective treatment for drug-resistant epilepsy. Long-term studies demonstrate that about 60% to 80% of patients become seizure-free after anterior temporal lobectomy and a majority of patients (about 95%) report significant seizure reduction after surgery. In the last few years, there has been significant advances in minimally invasive surgical techniques to treat drug-resistant epilepsy. These minimally invasive procedures have significant advantages over open surgery in that they produce less immediate discomfort and disability, while allowing for greater preservation of functional tissue...
January 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
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