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https://www.readbyqxmd.com/read/28222921/relationships-between-left-ventricular-structure-and-function-according-to-cardiac-mri-and-cardiac-biomarkers-in-end-stage-renal-disease
#1
Bryan A Ross, Ron Wald, Marc B Goldstein, Darren A Yuen, Jonathon Leipsic, Mercedeh Kiaii, Andrea Rathe, Djeven P Deva, Anish Kirpalani, Olugbenga O Bello, John J Graham, Howard Leong-Poi, Kim A Connelly, Andrew T Yan
BACKGROUND: We sought to assess the relationships between left ventricular (LV) remodelling and the mechanical and uremic stressors in hemodialysis patients. METHODS: In this prospective 2-centre cohort study, 67 prevalent hemodialysis patients were followed for 1 year. Data on routine bloodwork and predialysis blood pressure (BP) measurements were collected over a 12-week period. LV end-diastolic volume (LVEDV) and LV mass (LVM) were measured using cardiac magnetic resonance imaging and indexed...
December 3, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28219329/ultrafiltration-rate-is-an-important-determinant-of-microcirculatory-alterations-during-chronic-renal-replacement-therapy
#2
Gerke Veenstra, Andrius Pranskunas, Inga Skarupskiene, Vidas Pilvinis, Marc H Hemmelder, Can Ince, E Christiaan Boerma
BACKGROUND: Hemodialysis (HD) with ultrafiltration (UF) in chronic renal replacement therapy is associated with hemodynamic instability, morbidity and mortality. Sublingual Sidestream Dark Field (SDF) imaging during HD revealed reductions in microcirculatory blood flow (MFI). This study aims to determine underlying mechanisms. METHODS: The study was performed in the Medical Centre Leeuwarden and the Lithuanian University of Health Sciences. Patients underwent 4-h HD session with linear UF...
February 20, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28215568/reduction-in-radiation-dose-for-atrial-fibrillation-ablation-over-time-a-12-year-single-centre-experience-of-2-344-patients
#3
Aleksandr Voskoboinik, Elana S Kalman, Yonatan Savicky, Paul B Sparks, Joseph B Morton, Geoffrey Lee, Peter M Kistler, Jonathan M Kalman
BACKGROUND: Pulmonary vein isolation (PVI) is a well-established treatment for atrial fibrillation (AF), with contact force-sensing catheters joining 3D-mapping systems and image integration as technological advancements over the last decade. OBJECTIVE: To analyze trends in radiation exposure at our centre for AF ablation over the last 12 years. METHODS: We reviewed prospectively collected data of 2,344 consecutive PVI procedures for either paroxysmal or persistent AF between 1/2004 - 12/2015...
February 12, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28214968/piloting-the-use-of-patient-specific-cardiac-models-as-a-novel-tool-to-facilitate-communication-during-cinical-consultations
#4
Giovanni Biglino, Despina Koniordou, Marisa Gasparini, Claudio Capelli, Lindsay-Kay Leaver, Sachin Khambadkone, Silvia Schievano, Andrew M Taylor, Jo Wray
This pilot study aimed to assess the impact of using patient-specific three-dimensional (3D) models of congenital heart disease (CHD) during consultations with adolescent patients. Adolescent CHD patients (n = 20, age 15-18 years, 15 male) were asked to complete two questionnaires during a cardiology transition clinic at a specialist centre. The first questionnaire was completed just before routine consultation with the cardiologist, the second just after the consultation. During the consultation, each patient was presented with a 3D full heart model realised from their medical imaging data...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28213828/screening-for-non-alcoholic-fatty-liver-disease-in-children-and-adolescents-with-type-1-diabetes-mellitus-a-cross-sectional-analysis
#5
Sebastian Kummer, Dirk Klee, Gerald Kircheis, Michael Friedt, Joerg Schaper, Dieter Häussinger, Ertan Mayatepek, Thomas Meissner
: The liver is intensely involved in glucose metabolism and is thereby closely related to diabetes pathophysiology. Adult patients with type 1 diabetes mellitus (DM) are at an increased risk for non-alcoholic fatty liver disease (NAFLD). Here, we studied the prevalence of NAFLD in a cohort of children and adolescents with type 1 DM in a tertiary care paediatric diabetes centre in Germany. We screened 93 children and adolescents with type 1 DM using ultrasound, laboratory investigations, and liver stiffness measurements (Fibroscan® [FS] and acoustic radiation force imaging [ARFI])...
February 17, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28202051/variability-of-radiation-doses-of-cardiac-diagnostic-imaging-tests-the-radio-evinci-study-radiationdose-subproject-of-the-evinci-study
#6
Clara Carpeggiani, Eugenio Picano, Marco Brambilla, Claudio Michelassi, Juhani Knuuti, Philipp Kauffman, S Richard Underwood, Danilo Neglia
BACKGROUND: Patients with coronary artery disease can accumulate significant radiation dose through repeated exposures to coronary computed tomographic angiography, myocardial perfusion imaging with single photon emission computed tomography or positron emission tomography, and to invasive coronary angiography. Aim of the study was to audit radiation doses of coronary computed tomographic angiography, single photon emission computed tomography, positron emission tomography and invasive coronary angiography in patients enrolled in the prospective, randomized, multi-centre European study-EVINCI (Evaluation of Integrated Cardiac Imaging for the Detection and Characterization of Ischemic Heart Disease)...
February 16, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28197870/intravascular-ultrasound-guidance-of-percutaneous-coronary-intervention-in-ostial-chronic-total-occlusions-a-description-of-the-technique-and-procedural-results
#7
Nicola Ryan, Nieves Gonzalo, Philip Dingli, Oscar Vedia Cruz, Pilar Jiménez-Quevedo, Luis Nombela-Franco, Ivan Nuñez-Gil, María Del Trigo, Pablo Salinas, Carlos Macaya, Antonio Fernandez-Ortiz, Javier Escaned
Inability to cross the lesion with a guidewire is the most common reason for failure in percutaneous revascularization (PCI) of chronic total occlusions (CTOs). An ostial or stumpless CTO is an acknowledged challenge for CTO recanalization due to difficulty in successful wiring. IVUS imaging provides the opportunity to visualize the occluded vessel and to aid guidewire advancement. We review the value of this technique in a single-centre experience of CTO PCI. This series involves 22 patients who underwent CTO-PCI using IVUS guidance for stumpless CTO wiring at our institution...
February 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28192840/-en-face-oct-in-small-pigmented-choroidal-tumors
#8
S Cotting-Bodmer, L Zografos, A Schalenbourg
Background "En face" optical coherence tomography (OCT) is an imaging technique with optic sections parallel to the retinal pigment epithelium (RPE). This study aims to define the use of this technique in the evaluation of small pigmented choroidal tumors. Patients and Methods Investigation of 27 small pigmented choroidal tumors with "en face" OCT. Following manual segmentation, the optic sections performed with a spectral domain OCT at 30, 80 and 130 µ under the RPE were selected for morphological and statistical analysis...
February 13, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28190636/correlation-of-18-f-fluorodeoxyglucose-positron-emission-tomography-parameters-with-patterns-of-disease-progression-in-locally-advanced-pancreatic-cancer-after-definitive-chemoradiotherapy
#9
J M Wilson, S Mukherjee, T B Brunner, M Partridge, M A Hawkins
AIMS: A proportion of patients with pancreatic cancer never develop metastatic disease. We evaluated a role for (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) in identifying a subset of patients with locally advanced pancreatic cancer (LAPC) who never develop metastatic disease and only experience local disease and may therefore benefit from local treatment intensification. MATERIAL AND METHODS: Patients with histologically confirmed LAPC entered a single-centre phase II study of definitive upfront chemoradiotherapy (CRT)...
February 9, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28187889/gift-cloud-a-data-sharing-and-collaboration-platform-for-medical-imaging-research
#10
Tom Doel, Dzhoshkun I Shakir, Rosalind Pratt, Michael Aertsen, James Moggridge, Erwin Bellon, Anna L David, Jan Deprest, Tom Vercauteren, Sébastien Ourselin
OBJECTIVES: Clinical imaging data are essential for developing research software for computer-aided diagnosis, treatment planning and image-guided surgery, yet existing systems are poorly suited for data sharing between healthcare and academia: research systems rarely provide an integrated approach for data exchange with clinicians; hospital systems are focused towards clinical patient care with limited access for external researchers; and safe haven environments are not well suited to algorithm development...
February 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28185817/outcomes-following-melody-transcatheter-pulmonary-valve-implantation-for-right-ventricular-outflow-tract-dysfunction-in-repaired-congenital-heart-disease-first-reported-australian-single-centre-experience
#11
Ryan Markham, Abhinay Challa, Stephen Kyranis, Mugur Nicolae, Dale Murdoch, Michael Savage, Theresa Malpas, Dorothy J Radford, Christian Hamilton-Craig, Darren L Walters
BACKGROUND: Transcatheter pulmonary valve implantation (TPVI) with the Melody® transcatheter pulmonary valve (TPV) has demonstrated good haemodynamic and clinical outcomes in the treatment of right ventricular outflow tract (RVOT) conduit dysfunction in patients with repaired congenital heart disease CHD. We present the first Australian single centre experience of patients treated with Melody TPV. METHOD: A prospective, observational registry was developed to monitor clinical and haemodynamic outcomes in patients with RVOT dysfunction treated with the Melody TPV (Medtronic Inc, Minneapolis, United States)...
January 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28185344/incidental-and-nonincidental-canine-thyroid-tumors-assessed-by-multidetector-row-computed-tomography-a-single-centre-cross-sectional-study-in-4520-dogs
#12
Giovanna Bertolini, Michele Drigo, Luca Angeloni, Marco Caldin
Thyroid nodules are common in dogs and are increasingly likely to be detected with the increased use of advanced imaging modalities. An unsuspected, nonpalpable, asymptomatic lesion, defined as a thyroid incidentaloma, may be discovered on an imaging study unrelated to the thyroid gland. The objective of this single-center cross-sectional study was to assess the prevalence and computed tomography (CT) characteristics of incidental and nonincidental thyroid tumors in a large population of dogs, using prospective recruitment of patients undergoing CT examination for various reasons during the period of 2005-2015...
February 9, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28179198/cesarean-scar-ectopic-pregnancy-laparoscopic-resection-and-total-scar-dehiscence-repair-a-case-report
#13
Sara Mahgoub, Victor Gabriele, Emilie Faller, Bruno Langer, Arnaud Wattiez, Lise Lecointre, Cherif Akladios
STUDY OBJECTIVE: Illustrate laparoscopic technique for resection of cesarean scar ectopic pregnancy, associated with isthmocele repair. DESIGN: Case report SETTING: Tertiary referral centre in Strasbourg, France. The study was approved by the local IRB. BACKGROUND: Cesarean scar pregnancy is a rare form of ectopic pregnancy. The major risk of this type of pregnancy is the early uterine rupture with massive bleeding and maternal life-threatening...
February 4, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28176670/cerebrospinal-fluid-pleocytosis-in-critical-care-patients-with-seizures
#14
Carly Scramstad, Alan C Jackson
OBJECTIVES: To assess the etiology of cerebrospinal fluid (CSF) pleocytosis in critical care patients with seizure(s) or status epilepticus (SE). Many previous studies, some performed decades ago, concluded that CSF pleocytosis may be entirely attributable to seizure activity. METHODS: We undertook a retrospective chart review of adult patients with an admitting or acquired diagnosis of seizure(s) or SE in critical care units at the Winnipeg Health Sciences Centre between 2009 and 2012...
February 8, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28175934/investigating-the-role-of-spect-ct-in-dynamic-sentinel-lymph-node-biopsy-for-penile-cancers
#15
Ziauddin Zia Saad, Savvas Omorphos, Sofia Michopoulou, Svetislav Gacinovic, Peter Malone, Raj Nigam, Asif Muneer, Jamshed Bomanji
PURPOSE: Currently, most centres use 2-D planar lymphoscintigraphy when performing dynamic sentinel lymph node biopsy in penile cancer patients with clinically impalpable inguinal nodes. This study aimed to investigate the role of SPECT/CT following 2-D planar lymphoscintigraphy (dynamic and static) in the detection and localization of sentinel lymph nodes in the groin. METHODS: A qualitative (visual) review was performed on planar followed by SPECT/CT lymphoscintigraphy in 115 consecutive patients (age 28-86 years) who underwent injection of (99m)Tc-nanocolloid followed by immediate acquisition of dynamic (20 min) and early static scans (5 min) initially and further delayed static (5 min) images at 120 min followed by SPECT/CT imaging...
February 7, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28174061/the-effect-of-orthognathic-surgery-on-the-temporomandibular-joint-and-oral-function-a-systematic-review
#16
REVIEW
E C Te Veldhuis, A H Te Veldhuis, W M Bramer, E B Wolvius, M J Koudstaal
The objective of this systematic review was to examine the effect of orthognathic surgery (OS) on the temporomandibular joint and oral function. Electronic databases were systematically searched for studies published until October 2015. Articles were assessed against predefined inclusion criteria. The included papers were divided into four groups based on the type of OS performed. The following items were recorded: quality of evidence using the Oxford Centre for Evidence-Based medicine (CEBM) criteria, number of patients, presence/absence of controls, mean age at treatment, follow-up time, clinical examination findings, bite force, use of the Helkimo Index and Research Diagnostic Criteria for Temporomandibular Disorders, imaging findings, and patient questionnaire results...
February 4, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28169283/ultra-high-resolution-profiles-of-macular-intra-retinal-layer-thicknesses-and-associations-with-visual-field-defects-in-primary-open-angle-glaucoma
#17
Qi Chen, Shenghai Huang, Qingkai Ma, Huiling Lin, Mengmeng Pan, Xinting Liu, Fan Lu, Meixiao Shen
The structural characteristics of the outer retinal layers in primary open angle glaucoma (POAG) are still controversial, and these changes, along with those in the inner retinal layers, could have clinical and/or pathophysiological significance. A custom-built ultra-high resolution optical coherence tomography (UHR-OCT) combined with an automated segmentation algorithm can image and measure the eight intra-retinal layers. The purpose of this study is to determine the thickness characteristics of the macular intra-retinal layers, especially the outer layers, in POAG patients...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28165594/usefulness-of-measuring-acetabular-anterior-coverage-using-a-tomosynthesis-imaging-system
#18
Tadahiko Ohtsuru, Yasuyuki Morita, Yuhei Horiuchi, Yasuaki Murata, Shuji Shimamoto, Yuji Morita, Yutaro Munakata, Yoshiharu Kato
PURPOSE: The purpose of this study was to compare the usefulness of measuring acetabular anterior coverage by tomosynthesis and false profile (FP) radiography. METHODS: 70 hips in 35 patients who were diagnosed with early stage osteoarthritis of the hip, and 60 hips from 30 healthy volunteers were analysed. Plain FP radiographs were taken, and vertical-centre-anterior margin (FP-VCA) angles were measured. Acetabular anterior coverage was measured in the natural standing position using a tomosynthesis imaging system in the sagittal plane...
January 23, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28163035/intra-and-inter-observer-reliability-of-nailfold-videocapillaroscopy-a-possible-outcome-measure-for-systemic-sclerosis-related-microangiopathy
#19
Graham Dinsdale, Tonia Moore, Neil O'Leary, Philip Tresadern, Michael Berks, Christopher Roberts, Joanne Manning, John Allen, Marina Anderson, Maurizio Cutolo, Roger Hesselstrand, Kevin Howell, Carmen Pizzorni, Vanessa Smith, Alberto Sulli, Marie Wildt, Christopher Taylor, Andrea Murray, Ariane L Herrick
OBJECTIVES: Our aim was to assess the reliability of nailfold capillary assessment in terms of image evaluability, image severity grade ('normal', 'early', 'active', 'late'), capillary density, capillary (apex) width, and presence of giant capillaries, and also to gain further insight into differences in these parameters between patients with systemic sclerosis (SSc), patients with primary Raynaud's phenomenon (PRP) and healthy control subjects. METHODS: Videocapillaroscopy images (magnification 300×) were acquired from all 10 digits from 173 participants: 101 patients with SSc, 22 with PRP and 50 healthy controls...
February 2, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28156051/ct-of-the-head-for-acute-stroke-diagnostic-performance-of-a-tablet-computer-prior-to-intravenous-thrombolysis
#20
Patrick D McLaughlin, Fiachra Moloney, Siobhan B O'Neill, Karl James, Lee Crush, Oisin Flanagan, Michael M Maher, Gerald Wyse, Noel Fanning
INTRODUCTION: The authors propose that tablet computers could benefit patients with acute stroke in the remote care setting, where time to and accuracy of CT interpretation greatly influences patient outcome. METHODS: One hundred and fifty consecutive patients who presented to the Emergency Department of a tertiary referral neurosciences centre within a time window suitable for intravenous thrombolytic therapy were included. Images were wirelessly transmitted to a tablet computer (iPad 3rd Generation, model = A1430, Apple, Cupertino, CA) and were reviewed by radiologists with three levels of experience for signs of intracranial haemorrhage, large vessel occlusion and parenchymal infarction...
February 3, 2017: Journal of Medical Imaging and Radiation Oncology
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