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Imaging inflammation

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https://www.readbyqxmd.com/read/28728177/porcine-collagen-transconjunctival-wound-closure-system-for-microincisional-vitrectomy-surgery
#1
Tiffany A Chen, Peter K Kaiser, Rainer Fasching, Darius M Moshfeghi
BACKGROUND AND OBJECTIVE: Microincisional vitrectomy surgery has improved outcomes for vitrectomies; however, wound closure complications remain an important concern. The authors introduce a technique to improve transconjunctival wound closure in vitrectomy surgery. PATIENTS AND METHODS: The authors evaluated the efficacy of porcine collagen plugs on stopping leakage from sclerotomy test sites in vitro and in vivo and assessed wound site healing with histology samples...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28727824/infiltrative-tumor-growth-patterns-on-magnetic-resonance-imaging-associated-with-systemic-inflammation-and-oncological-outcome-in-patients-with-high-grade-soft-tissue-sarcoma
#2
Tomoki Nakamura, Akihiko Matsumine, Takao Matsubara, Kunihiro Asanuma, Yuki Yada, Tomohito Hagi, Akihiro Sudo
OBJECTIVE: The aim of this study was to determine whether the tumor infiltrative growth pattern on magnetic resonance imaging (MRI) was associated with blood inflammatory markers (C-reactive protein; CRP and Neutrophil-lymphocyte ratio; NLR) and survival in patients with high-grade soft-tissue sarcoma (STS). METHODS: The cohort for this retrospective study included 81 patients with a mean age of 63 years. The tumor depth was superficial or deep in 15 and 66 patients, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28727235/thermal-imaging-and-dermoscopy-for-detecting-inflammation-in-frontal-fibrosing-alopecia
#3
Anna Lis-Święty, Bartosz Miziołek, Irmina Ranosz-Janicka, Grażyna Bierzyńska-Macyszyn, Ligia Brzezińska-Wcisło
BACKGROUND: Frontal fibrosing alopecia (FFA) is an inflammatory condition of the scalp, which leads to scarring and slowly progressive recession of frontotemporal and/or frontoparietal hairline. Choice of FFA treatment is highly dependent on accurate assessment of disease phase, as medical treatments are effective only during the initial inflammatory stage. METHODS: To objectively quantify the activity of the inflammatory process in FFA, 22 female patients were examined by both infrared thermography and optical dermoscopy before tissue sampling...
July 20, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28725920/pre-papillary-vitreous-opacities-associated-with-beh%C3%A3-et-s-disease-a-case-series-and-review-of-the-literature
#4
Lindsay A Grotting, Samaneh Davoudi, Eduardo Uchiyama, Ann-Marie Lobo, George N Papaliodis, Lucia Sobrin
PURPOSE: To present pre-papillary vitreous opacity as an uncommon manifestation of inflammation in Behçet's disease that may be specific to this uveitic entity. METHODS: We retrospectively reviewed the charts of 67 patients with Behçet's disease examined at our clinic between 2005 and 2016. Behçet's disease was diagnosed based on established clinical criteria of inflammation involving the eyes, mucocutaneous junctions, and skin. Patients with Behçet's disease who presented with papillitis and a pre-papillary vitreous opacity were identified...
July 19, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28725174/altered-functional-connectivity-following-an-inflammatory-white-matter-injury-in-the-newborn-rat-a-high-spatial-and-temporal-resolution-intrinsic-optical-imaging-study
#5
Edgar Guevara, Wyston C Pierre, Camille Tessier, Luis Akakpo, Irène Londono, Frédéric Lesage, Gregory A Lodygensky
Very preterm newborns have an increased risk of developing an inflammatory cerebral white matter injury that may lead to severe neuro-cognitive impairment. In this study we performed functional connectivity (fc) analysis using resting-state optical imaging of intrinsic signals (rs-OIS) to assess the impact of inflammation on resting-state networks (RSN) in a pre-clinical model of perinatal inflammatory brain injury. Lipopolysaccharide (LPS) or saline injections were administered in postnatal day (P3) rat pups and optical imaging of intrinsic signals were obtained 3 weeks later...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28724861/carcinoma-of-maxillary-gingiva-with-non-specific-cervical-lymph-node-swelling
#6
Masashi Migita, Shiro Shigematsu, Hitoshi Ohata, Takahiko Shibahara
Swelling of the cervical lymph nodes may indicate lymphadenitis, malignant lymphoma, or metastasis. Lymph nodes larger than 10 mm on computed tomography (CT) are strongly indicative of postoperative metastasis from carcinoma. Here, we report a case of large, inflamed lymph nodes mimicking metastasis. The patient was a 76-year-old woman who experienced discomfort in the left-side maxillary gingiva commencing in August 2011. By September, the area had become painful, causing her to visit the Tokyo Dental College Chiba Hospital, at which time a 75×50-mm swollen ulcer was observed in the maxillary gingiva on the left side...
2017: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/28724581/mri-evidence-of-acute-inflammation-in-leukocortical-lesions-of-patients-with-early-multiple-sclerosis
#7
Josefina Maranzano, David A Rudko, Kunio Nakamura, Stuart Cook, Diego Cadavid, Leo Wolansky, Douglas L Arnold, Sridar Narayanan
OBJECTIVE: To identify gadolinium-enhancing lesions affecting the cortex of patients with early multiple sclerosis (MS) and to describe the frequency and evolution of these lesions. METHODS: We performed a retrospective, observational, longitudinal analysis of MRI scans collected as part of the Betaseron vs Copaxone in Multiple Sclerosis with Triple-Dose Gadolinium and 3T MRI Endpoints (BECOME) study. Seventy-five patients with early-stage MS were scanned monthly, over a period of 12-24 months, using 3T MRI after administration of triple-dose gadolinium...
July 19, 2017: Neurology
https://www.readbyqxmd.com/read/28723853/high-frequency-ultrasound-description-of-sacral-tissue-characteristics-in-healthy-adults
#8
Ruth S Burk, Christine M Schubert, Anathea Pepperl, Mary Jo Grap
OBJECTIVES: The purpose of this study was to describe selected sacral tissue characteristics in a convenience sample of healthy volunteer subjects. DESIGN: Descriptive. SAMPLE AND SETTING: Fifty healthy volunteers in a clinical learning center in a school of nursing. METHODS: Sacral scans were obtained using a 20-MHz ultrasound scanning system in 3 positions: prone and 60° and 90° side-lying from the back. The images were analyzed by software in the ultrasound program using quantitative parameters of dermal thickness and density (dermal median intensity and derived number of low-echogenic pixels to total pixels [LEP:TP] ratio)...
July 18, 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28722597/occult-amoebic-liver-abscess-as-cause-of-extensive-inferior-vena-cava-and-hepatic-vein-thrombosis
#9
Leslie Martin, Nishigandha Burute, Ehsan Haider, Pablo E Serrano, Timothy O'Shea, Deborah Siegal
The most common extraintestinal complication of Entamoeba histolytica is amoebic liver abscess (ALA). Hepatic vein and inferior vena cava (IVC) thrombosis are rare but well-documented complications of ALA, typically attributed to mechanical compression and inflammation associated with a large abscess. We present a case of a previously healthy 43-year-old Canadian man presenting with constitutional symptoms and right upper quadrant abdominal pain. He was found to have thrombophlebitis of the IVC, accessory right hepatic vein, and bilateral iliac veins...
July 3, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722366/-large-vessel-vasculitis-pathogenesis-diagnostic-and-medical-management
#10
Alireza Sadrkhah, Jörg D Seebach, Yannick Muller
Large vessels vasculitis includes two diseases : 1) giant cell arteritis, formerly known as Horton's arteritis and 2) Takayasu arteritis. In this article, we will describe and compare the epidemiology, pathogenesis, diagnostic criteria and medical management of both vasculitis. T helper (Th) 1 and Th17 responses, genetic links and the role of viral (varicella zoster) and bacterial infection (Mycoplasma pneumoniae or Chlamydia pneumoniae) will be discussed. Classification criteria, inflammation biomarkers and progress in imaging tools will also be described...
April 5, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28722240/an-mri-hyperintense-acute-reperfusion-marker-is-related-to-elevated-peripheral-monocyte-count-in-acute-ischemic-stroke
#11
Zurab Nadareishvili, Marie Luby, Richard Leigh, Jignesh Shah, John K Lynch, Amie W Hsia, Richard T Benson, Lawrence L Latour
BACKGROUND AND PURPOSE: Blood-brain barrier (BBB) disruption detected on magnetic resonance imaging (MRI) in acute ischemic stroke as a hyperintense acute reperfusion marker (HARM) is associated with upregulation of matrix metalloproteinase-9 (MMP-9). Although activated leukocytes, including monocytes, are the main source of MMPs, limited data exist to support relationship between leukocyte activation and BBB disruption in patients with acute ischemic stroke. The goal of this study is to investigate the relationship between neutrophils, lymphocytes, and monocytes with BBB disruption detected as HARM (+) in patients with acute ischemic stroke...
July 19, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28722024/multifunctional-nanoparticles-as-a-tissue-adhesive-and-an-injectable-marker-for-image-guided-procedures
#12
Kwangsoo Shin, Jin Woo Choi, Giho Ko, Seungmin Baik, Dokyoon Kim, Ok Kyu Park, Kyoungbun Lee, Hye Rim Cho, Sang Ihn Han, Soo Hong Lee, Dong Jun Lee, Nohyun Lee, Hyo-Cheol Kim, Taeghwan Hyeon
Tissue adhesives have emerged as an alternative to sutures and staples for wound closure and reconnection of injured tissues after surgery or trauma. Owing to their convenience and effectiveness, these adhesives have received growing attention particularly in minimally invasive procedures. For safe and accurate applications, tissue adhesives should be detectable via clinical imaging modalities and be highly biocompatible for intracorporeal procedures. However, few adhesives meet all these requirements. Herein, we show that biocompatible tantalum oxide/silica core/shell nanoparticles (TSNs) exhibit not only high contrast effects for real-time imaging but also strong adhesive properties...
July 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28720724/aortic-wall-inflammation-predicts-abdominal-aortic-aneurysm-expansion-rupture-and-need-for-surgical-repair
#13
The Ma Rs Study Investigators
Background -Ultrasmall superparamagnetic particles of iron oxide (USPIO) detect cellular inflammation on magnetic resonance imaging (MRI). In patients with abdominal aortic aneurysm, we assessed whether USPIO-enhanced MRI can predict aneurysm growth rates and clinical outcomes. Methods -In a prospective multicentre open-label cohort study, 342 patients with abdominal aortic aneurysm (diameter ≥40 mm) were classified by the presence of USPIO enhancement and were monitored with serial ultrasound and clinical follow-up for at least 2 years...
July 18, 2017: Circulation
https://www.readbyqxmd.com/read/28720139/the-golmepsa-study-protocol-an-investigator-initiated-double-blind-parallel-group-randomised-controlled-trial-of-golimumab-and-methotrexate-versus-methotrexate-in-early-diagnosed-psoriatic-arthritis-using-clinical-and-whole-body-mri-outcomes
#14
Gabriele De Marco, Philip Helliwell, Dennis McGonagle, Paul Emery, Laura C Coates, Elizabeth M A Hensor, Helena Marzo-Ortega
BACKGROUND: Psoriatic arthritis (PsA) is a chronic inflammatory arthritis which impacts significantly on the quality of life and work capacity of affected individuals. Recent evidence has shown that early control of inflammation in PsA leads to improved long-term outcomes. It is postulated that prompt intervention after diagnosis using a remission-induction treatment strategy will lead to improved outcomes and optimal disease control of PsA. The aim of the present study was to compare the clinical efficacy of a treatment strategy in newly diagnosed, treatment naïve PsA subjects, using the combination of golimumab (GOL), methotrexate (MTX) and steroids versus standard care (MTX monotherapy plus steroids)...
July 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28719100/deuteration-of-hyperpolarized-%C3%A2-%C3%A2-c-labelled-zymonic-acid-enables-sensitivity-enhanced-dynamic-mri-of-ph
#15
Christian Hundshammer, Stephan Düwel, Simone Köcher, Malte Gersch, Benedikt Feuerecker, Christoph Scheurer, Axel Haase, Steffen J Glaser, Markus Schwaiger, Franz Schilling
Aberrant pH is characteristic of many pathologies such as ischemia, inflammation or cancer. Therefore, a non-invasive and spatially resolved pH determination is valuable for disease diagnosis, characterization of response to treatment and the design of pH-sensitive drug delivery systems. We recently introduced hyperpolarized zymonic acid (ZA) as a novel MRI probe of extracellular pH utilizing dissolution dynamic polarization (DNP) for a more than 10,000-fold NMR signal enhancement. Here we present a strategy to enhance the sensitivity of this approach by deuteration of ZA (ZAd)...
July 18, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28718666/atrial-cardiopathy-a-mechanism-of-cryptogenic-stroke
#16
Shadi Yaghi, Hooman Kamel, Mitchell S V Elkind
Cryptogenic stroke accounts for approximately 30% of all ischemic strokes. Recently, atrial cardiopathy diagnosed by the presence of one of its serum, imaging, or electrocardiogram biomarkers has been shown to be associated with ischemic stroke, particularly of embolic subtypes. Areas covered: This paper aims to summarize data on occult atrial fibrillation and stroke, provide an overview on mechanisms, such as inflammation and fibrosis, of stroke in atrial cardiopathy, critically review data on biomarkers of atrial cardiopathy and their association with stroke, and suggest therapeutic implications, including directions for future research...
July 18, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28716936/bacterial-infection-imaging-with-18-f-fluoropropyl-trimethoprim
#17
Mark A Sellmyer, Iljung Lee, Catherine Hou, Chi-Chang Weng, Shihong Li, Brian P Lieberman, Chenbo Zeng, David A Mankoff, Robert H Mach
There is often overlap in the diagnostic features of common pathologic processes such as infection, sterile inflammation, and cancer both clinically and using conventional imaging techniques. Here, we report the development of a positron emission tomography probe for live bacterial infection based on the small-molecule antibiotic trimethoprim (TMP). [(18)F]fluoropropyl-trimethoprim, or [(18)F]FPTMP, shows a greater than 100-fold increased uptake in vitro in live bacteria (Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa) relative to controls...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28716765/sporadic-endolymphatic-sac-tumor-a-very-rare-cause-of-hearing-loss-tinnitus-and-dizziness
#18
Didde Trærup Schnack, Katalin Kiss, Søren Hansen, Hidemi Miyazaki, Birgitte Bech, Per Caye Thomasen
Sporadic endolymphatic sac tumor is a very rare neoplasm. It is low malignant, locally destructive and expansive, but non-metastasizing. The tumor is very rare in the sporadic form, but more often associated with Von Hippel-Lindau disease. A 65-year old man with left sided tinnitus and hearing loss for several months. Audiometry showed an asymmetrical sensory neural hearing loss on the left side up to 60 dB. The speech discrimination score was 46% and stapedial reflexes were absent. Several years earlier, he had suffered from periods of dizziness...
July 17, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28716179/surgical-treatment-of-chronic-rhinosinusitis-after-sinus-lift
#19
Nicole Tin-Lok Jiam, Andrew N Goldberg, Andrew H Murr, Steven D Pletcher
BACKGROUND: The sinus lift (or sinus augmentation) is a common procedure to improve maxillary bone stock before dental implantation. Chronic rhinosinusitis (CRS) is a potential complication of this procedure and may be refractory to medical treatment. Functional endoscopic sinus surgery has previously been used to address CRS, however, results of previous studies indicated that implant removal is required. There are limited follow-up data available. OBJECTIVE: The purpose of this study was to characterize the long-term outcomes and efficacy of endoscopic sinus surgery for refractory CRS after sinus lift, including the ability to salvage dental implants...
July 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28716007/silent-myocarditis-in-systemic-sclerosis-detected-by-cardiovascular-magnetic-resonance-using-lake-louise-criteria
#20
Sophie Mavrogeni, Loukia Koutsogeorgopoulou, Georgia Karabela, Efthymios Stavropoulos, Gikas Katsifis, John Raftakis, Sotiris Plastiras, Michel Noutsias, George Markousis-Mavrogenis, Genovefa Kolovou
BACKGROUND: Systemic sclerosis (SSc) is an autoimmune disease characterized by microvascular abnormalities, inflammation and fibrosis. We hypothesized that myocarditis may be diagnosed in asymptomatic SSc, undergoing routine cardio-vascular magnetic resonance (CMR) for fibrosis assessment, using the Lake Louise criteria: T2 ratio, early (EGE) and late gadolinium enhanced (LGE) images. METHODS: Eighty-two asymptomatic SSc, diagnosed according to American College of Rheumatology criteria, aged 43 ± 5 yrs...
July 17, 2017: BMC Cardiovascular Disorders
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