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Patient centred imaging

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https://www.readbyqxmd.com/read/28238284/native-t1-mapping-inter-study-inter-observer-and-inter-center-reproducibility-in-hemodialysis-patients
#1
Matthew P M Graham-Brown, Elaine Rutherford, E Levelt, Daniel S March, Darren R Churchward, David J Stensel, Christie McComb, Kenneth Mangion, Samantha Cockburn, Colin Berry, James C Moon, Patrick B Mark, James O Burton, Gerry P McCann
BACKGROUND: Native T1 mapping is a cardiovascular magnetic resonance (CMR) technique that associates with markers of fibrosis and strain in hemodialysis patients. The reproducibility of T1 mapping in hemodialysis patients, prone to changes in fluid status, is unknown. Accurate quantification of myocardial fibrosis in this population has prognostic potential. METHODS: Using 3 Tesla CMR, we report the results of 1) the inter-study, inter-observer and intra-observer reproducibility of native T1 mapping in 10 hemodialysis patients; 2) inter-study reproducibility of left ventricular (LV) structure and function in 10 hemodialysis patients; 3) the agreement of native T1 map and native T1 phantom analyses between two centres in 20 hemodialysis patients; 4) the effect of changes in markers of fluid status on native T1 values in 10 hemodialysis patients...
February 27, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28237773/review-of-post-ischemic-stroke-imaging-and-its-clinical-relevance
#2
Leonard L L Yeo, Benjamin Y Q Tan, Tommy Andersson
In this day and age, multiple imaging modalities are available to the stroke physician in the post-treatment phase.The practical challenge for physicians who treat stroke is to evaluate the pros and cons of each technique and select the best choice for the situation. The choice of imaging modality remains contentious at best and varies among different institutions and centres. This is no simple task an there are many factors to consider, including the differential diagnosis which need to be evaluated, the availability and reliability of the imaging technique and time and expertise required to perform and interpret the scanning...
February 14, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28237149/enhanced-depth-imaging-optical-coherence-tomography-in-patients-with-different-phases-of-behcet-s-panuveitis
#3
Nilufer Yesilirmak, Wen-Hsiang Lee, Sirel Gur Gungor, Eylem Yaman Pinarci, Imren Akkoyun, Gursel Yilmaz
OBJECTIVE: To evaluate the changes in choroidal thickness (CT) at 13 different points between "active," "remission," and "end-stage" phase of Behcet's panuveitis and compare this with the age, sex, and spherical equivalent matched healthy controls using enhanced depth imaging optical coherence tomography. DESIGN: Prospective study. PARTICIPANTS: Eighty-five eyes of 45 patients with Behcet's panuveitis (19 eyes with active phase, 48 eyes with remission phase, and 18 eyes with end-stage phase) and 84 eyes of 42 controls were enrolled in this study...
February 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28236777/multidetector-ct-improving-surgical-outcomes-in-breast-cancer-miso-bc-a-randomised-controlled-trial
#4
Julie Cox, Helen Hancock, Rebecca Maier, Jonathan Spratt, Chooi May Lee, Amir Bhatti, James Mason
BACKGROUND: Early diagnosis of malignant axillary nodes in breast cancer guides the extent of axillary surgery: patients with known axillary malignancy receive a more extensive single operation at the same time as surgery to their breast. A multicentre randomised controlled trial assessed whether a Computed Tomography (CT) scan of the axilla could more accurately diagnose malignant axillary lymph node involvement in patients with newly diagnosed breast cancer when compared to usual care...
February 22, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28236583/progression-free-survival-of-early-interim-pet-positive-patients-with-advanced-stage-hodgkin-s-lymphoma-treated-with-beacoppescalated-alone-or-in-combination-with-rituximab-hd18-an-open-label-international-randomised-phase-3-study-by-the-german-hodgkin-study
#5
Peter Borchmann, Heinz Haverkamp, Andreas Lohri, Ulrich Mey, Stefanie Kreissl, Richard Greil, Jana Markova, Michaela Feuring-Buske, Julia Meissner, Ulrich Dührsen, Helmut Ostermann, Ulrich Keller, Georg Maschmeyer, Georg Kuhnert, Markus Dietlein, Carsten Kobe, Hans Eich, Christian Baues, Harald Stein, Michael Fuchs, Volker Diehl, Andreas Engert
BACKGROUND: Advanced stage Hodgkin's lymphoma represents a heterogeneous group of patients with different risk profiles. Data suggests that interim PET assessment during chemotherapy is superior to baseline international prognostic scoring in terms of predicting long-term treatment outcome in patients with Hodgkin's lymphoma. We therefore hypothesised that early interim PET-imaging after two courses of bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, and prednisone (BEACOPP) might be suitable for guiding treatment in patients with advanced stage Hodgkin's lymphoma...
February 21, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28235654/is-burned-out-hippocampus-syndrome-a-distinct-electro-clinical-variant-of-mtle-hs-syndrome
#6
Pradeep P Nair, Ramshekhar N Menon, Ashalatha Radhakrishnan, Ajit Cherian, Mathew Abraham, George Vilanilam, C Kesavadas, Bejoy Thomas, Aley Alexander, Sanjeev V Thomas
AIM: To study the clinical, electrophysiological and imaging characteristics of patients with unilateral mesial temporal lobe epilepsy (MTLE) with contralateral ictal onset on scalp EEG, viz. 'burned-out hippocampus' syndrome (MTLE-BHS). METHODS: MTLE-BHS was defined as TLE with unilateral hippocampal sclerosis (HS) without any dual pathology on MRI and contralateral ictal onset on scalp EEG, unlike in classical hippocampal sclerosis (HS). Consecutive "MTLE-BHS" patients evaluated at our Centre for Comprehensive Epilepsy Care from January 2005 to July 2014 were studied...
February 21, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28229894/mobile-stroke-units-for-prehospital-thrombolysis-triage-and-beyond-benefits-and-challenges
#7
REVIEW
Klaus Fassbender, James C Grotta, Silke Walter, Iris Q Grunwald, Andreas Ragoschke-Schumm, Jeffrey L Saver
In acute stroke management, time is brain. Bringing swift treatment to the patient, instead of the conventional approach of awaiting the patient's arrival at the hospital for treatment, is a potential strategy to improve clinical outcomes after stroke. This strategy is based on the use of an ambulance (mobile stroke unit) equipped with an imaging system, a point-of-care laboratory, a telemedicine connection to the hospital, and appropriate medication. Studies of prehospital stroke treatment consistently report a reduction in delays before thrombolysis and cause-based triage in regard to the appropriate target hospital (eg, primary vs comprehensive stroke centre)...
March 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28228942/effects-of-renal-denervation-on-vascular-remodelling-in-patients-with-heart-failure-and-preserved-ejection-fraction-a-randomised-control-trial
#8
Hitesh C Patel, Carl Hayward, Jennifer Keegan, Peter D Gatehouse, Ronak Rajani, Rajdeep S Khattar, Raad H Mohiaddin, Stuart D Rosen, Alexander R Lyon, Carlo di Mario
OBJECTIVE: To assess the effect of renal denervation (RDT) on micro- and macro-vascular function in patients with heart failure with preserved ejection fraction (HFpEF). DESIGN: A prospective, randomised, open-controlled trial with blinded end-point analysis. SETTING: A single-centre London teaching hospital. PARTICIPANTS: Twenty-five patients with HFpEF who were recruited into the RDT-PEF trial. MAIN OUTCOME MEASURES: Macro-vascular: 24-h ambulatory pulse pressure, aorta distensibilty (from cardiac magnetic resonance imaging (CMR), aorta pulse wave velocity (CMR), augmentation index (peripheral tonometry) and renal artery blood flow indices (renal MR)...
January 2017: JRSM Cardiovascular Disease
https://www.readbyqxmd.com/read/28228138/current-management-practices-for-patients-presenting-with-low-back-pain-to-a-large-emergency-department-in-canada
#9
Matthew L Nunn, Jill A Hayden, Kirk Magee
BACKGROUND: Low back pain (LBP) is one of the leading causes of disability. Presentations to the emergency department (ED) are common and consume significant healthcare resources. However, treatment of patients with LBP is variable and highly physician dependent. Our study objective was to describe the demographic and clinical characteristics of patients presenting to the ED with LBP, the diagnostic strategies employed by ED physicians, and the subsequent management. METHODS: We conducted a retrospective study using clinical and electronic health data at the Queen Elizabeth II Health Science Center's Charles V...
February 23, 2017: BMC Musculoskeletal Disorders
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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