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https://www.readbyqxmd.com/read/28651422/-meta-analysis-on-the-diagnostic-value-of-laser-doppler-imaging-for-burn-depth
#1
Y Huang, L Qiu, A L Mei, J X Li
Objective: To evaluate the value of laser Doppler imaging (LDI) in diagnosing deep or superficial partial-thickness burn wound with meta-analysis. Methods: Databases including PubMed, Cochrane Library were searched using key words " burn, burns, burn depth, laser Doppler imaging, laser Doppler perfusion imaging, LDI, LDPI" , and Chinese Journals Full-text Database, Wanfang Database, VIP Database were searched using Chinese key words ",,,," to obtain the published trials of LDI in diagnosing deep or superficial partial-thickness burn wound from the establishment of each database to October 2015...
May 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28651261/evaluation-of-the-value-of-contrast-enhanced-ultrasound-ceus-within-radiology-departments-in-germany
#2
Tilmann Graeter, Wolfgang Kratzer, Thomas Seufferlein, Suemeyra Tasdemir, Aylin Senguel, Julian Schmidberger, Hartmut Graeter, Christian Stroszczynski, Meinrad Beer
Purpose Contrast-enhanced ultrasound (CEUS) has been established for many years and has become an increasingly important cornerstone of the diagnostic imaging of various organ systems. However, this modality is rarely performed by radiologists and is primarily employed by other medical disciplines. The goal of this questionnaire study is to present the current value of CEUS in radiology and to encourage reevaluation of the method within this medical discipline. Materials and Methods 560 directors of radiology departments throughout Germany were contacted and given a 3-page questionnaire...
June 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28651260/the-cdd-system-in-computed-tomographic-diagnosis-of%C3%A2-diverticular-disease
#3
Daniel Pustelnik, Fabian Henry Jürgen Elsholtz, Christian Bojarski, Bernd Hamm, Stefan Markus Niehues
Purpose This overview sums up the Classification of Diverticular Disease (CDD) with regard to its application in computed tomographic diagnosis and briefly recapitulates its targeted advantages over preliminary systems. Primarily, application of the CDD in computed tomography diagnostics is described. Differences with respect to the categories of the older systems are pointed out on the level of each CDD type using imaging examples. Materials and Methods The presented images are derived from our institute according to the S2k criteria...
June 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28651071/an-independent-active-contours-segmentation-framework-for-bone-micro-ct-images
#4
Vasileios Ch Korfiatis, Simone Tassani, George K Matsopoulos
Micro-CT is an imaging technique for small tissues and objects that is gaining increased popularity especially as a pre-clinical application. Nevertheless, there is no well-established micro-CT segmentation method, while typical procedures lack sophistication and frequently require a degree of manual intervention, leading to errors and subjective results. To address these issues, a novel segmentation framework, called Independent Active Contours Segmentation (IACS), is proposed in this paper. The proposed IACS is based on two autonomous modules, namely automatic ROI extraction and IAC Evolution, which segments the ROI image using multiple Active Contours that evolve simultaneously and independently of one another...
June 19, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28650811/regularized-spectral-log-difference-technique-for-ultrasonic-attenuation-imaging
#5
Andres L Coila, Roberto J Lavarello
The attenuation coefficient slope (ACS) has the potential to be used for tissue characterization and as a diagnostic ultrasound tool, hence complementing B-mode images. The ACS can be valuable for estimation of other ultrasound parameters such as the backscatter coefficient. There is a well-known trade-off between the precision of the estimated ACS values and the data block size used in spectral-based techniques such as the spectral log difference (SLD). This trade-off limits the practical usefulness of spectral-based attenuation imaging techniques...
June 26, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28650562/the-economic-value-of-hybrid-single-photon-emission-computed-tomography-with-computed-tomography-imaging-in-pulmonary-embolism-diagnosis
#6
Lauren K Toney, Richard D Kim, Swetha R Palli
OBJECTIVE: To quantify the potential economic value of single-photon emission computed tomography (SPECT) with computed tomography (CT; SPECT/CT) versus CT pulmonary angiography (CTPA), ventilation-perfusion (V/Q) planar scintigraphy and V/Q SPECT imaging modalities for diagnosing suspected pulmonary embolism (PE) patients in an emergency setting. METHODS: An Excel-based simulation model was developed to compare SPECT/CT versus the alternate scanning technologies from a payer's perspective...
June 26, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28650514/automatic-segmentation-of-the-spine-by-means-of-a-probabilistic-atlas-with-a-special-focus-on-ribs-suppression
#7
Silvia Ruiz-España, Juan Domingo, Antonio Díaz-Parra, Esther Dura, Víctor D'Ocón-Alcañiz, Estanislao Arana, David Moratal
PURPOSE: The development of automatic and reliable algorithms for the detection and segmentation of the vertebrae are of great importance prior to any diagnostic task. However, an important problem found to accurately segment the vertebrae is the presence of the ribs in the thoracic region. To overcome this problem, a probabilistic atlas of the spine has been developed dealing with the proximity of other structures, with a special focus on ribs suppression. METHODS: The data sets used consist of Computed Tomography images corresponding to 21 patients suffering from spinal metastases...
June 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/28650235/evaluation-of-infrared-thermography-as-a-diagnostic-tool-to-predict-heat-stress-events-in-feedlot-cattle
#8
Ellen M Unruh, Miles E Theurer, Brad J White, Robert L Larson, James S Drouillard, Nora Schrag
OBJECTIVE To determine whether infrared thermographic images obtained the morning after overnight heat abatement could be used as the basis for diagnostic algorithms to predict subsequent heat stress events in feedlot cattle exposed to high ambient temperatures. ANIMALS 60 crossbred beef heifers (mean ± SD body weight, 385.8 ± 20.3 kg). PROCEDURES Calves were housed in groups of 20 in 3 pens without any shade. During the 6 am and 3 pm hours on each of 10 days during a 14-day period when the daily ambient temperature was forecasted to be > 29...
July 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28650133/imaging-in-primary-hyperparathyroidism-focus-on-the-evidence-based-diagnostic-performance-of-different-methods
#9
Giorgio Treglia, Pierpaolo Trimboli, Martin Huellner, Luca Giovanella
BACKGROUND: Primary hyperparathyroidism (PHPT) is a common endocrine disorder usually due to hyperfunctioning parathyroid glands (HP). Surgical removal of HP is the main treatment in PHPT, particularly in symptomatic patients. The correct detection and localization of HP is challenging and crucial as it may guide surgical treatment in patients with PHPT. To date, different imaging methods have been used to detect and localize HP in patients with PHPT including radiology, nuclear medicine and hybrid techniques...
June 23, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28649956/the-ati-score-age-thrombotic-burden-index-of-microcirculatory-resistance-determined-during-primary-percutaneous-coronary-intervention-predicts-final-infarct-size-in-patients-with-st-elevation-myocardial-infarction-a-cardiac-magnetic-resonance-validation-study
#10
Giovanni Luigi De Maria, Mohammad Alkhalil, Mathias Wolfrum, Gregor Fahrni, Alessandra Borlotti, Lisa Gaughran, Sam Dawkins, Jeremy Langrish, Andrew Lucking, Robin Choudhury, Italo Porto, Filippo Crea, Erica Dall'Armellina, Keith Channon, Rajesh Kharbanda, Adrian Banning
AIMS: The age-thrombus score-index of microcirculatory resistance (ATI) score is a diagnostic tool able to predict suboptimal myocardial reperfusion before stenting, in patients with ST elevation myocardial infarction (STEMI). We aimed to validate the ATI score against cardiac magnetic resonance imaging (cMRI). METHODS AND RESULTS: The ATI score was calculated prospectively in 80 STEMI patients. cMRI was performed within 48 hours in all patients and in 50 patients at six months follow up to assess the extent of infarct size (IS%) and microvascular obstruction (MVO%)...
June 27, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28649735/diagnostic-sensitivity-of-tc-99m-hynic-psma-spect-ct-in-prostate-carcinoma-a-comparative-analysis-with-ga-68-psma-pet-ct
#11
Ismaheel O Lawal, Alfred O Ankrah, Neo P Mokgoro, Mariza Vorster, Alex Maes, Mike M Sathekge
BACKGROUND: Emerging data from published studies are demonstrating the superiority of Ga-68 PSMA PET/CT imaging in prostate cancer. However, the low yield of the Ge-68/Ga-68 from which Gallium-68 is obtained and fewer installed PET/CT systems compared to the SPECT imaging systems may limit its availability. We, therefore, evaluated in a head-to-head comparison, the diagnostic sensitivity of Ga-68 PSMA PET/CT and Tc-99m PSMA SPECT/CT in patients with prostate cancer. METHODS: A total of 14 patients with histologically confirmed prostate cancer were prospectively recruited to undergo Ga-68 PSMA PET/CT and Tc-99m HYNIC PSMA SPECT/CT...
June 26, 2017: Prostate
https://www.readbyqxmd.com/read/28649597/early-diagnosis-of-mild-cognitive-impairment-and-alzheimer-s-disease-based-on-salivary-lactoferrin
#12
Eva Carro, Fernando Bartolomé, Félix Bermejo-Pareja, Alberto Villarejo-Galende, José Antonio Molina, Pablo Ortiz, Miguel Calero, Alberto Rabano, José Luis Cantero, Gorka Orive
INTRODUCTION: The Alzheimer's disease (AD) process is likely initiated many years before clinical onset. Biomarkers of preclinical disease are critical for the development of disease-modifying or even preventative therapies. Current biomarkers for early disease, including cerebrospinal fluid tau and amyloid β (Aβ) levels, structural and functional magnetic resonance imaging, and the use of brain amyloid imaging, are limited because they are very invasive or expensive. Noninvasive biomarkers may be a more accessible alternative, but none can currently detect preclinical AD with the required sensitivity and specificity...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28649563/symptomatic-congenital-cytomegalovirus-infection-in-children-of-seropositive-women
#13
Ines Mack, Marie-Anne Burckhardt, Ulrich Heininger, Friederike Prüfer, Sven Schulzke, Sven Wellmann
Cytomegalovirus (CMV) is the most frequent congenital virus infection worldwide. The risk of congenital CMV (cCMV) transmission is highest in seronegative women who acquire primary CMV infection during pregnancy. A growing body of evidence indicates that secondary CMV infections in pregnant women with preconceptual immunity (either through reactivation of latent virus or re-infection with a new strain of CMV) contribute to a much greater proportion of symptomatic cCMV than was previously thought. Here, we describe a case of symptomatic cCMV infection in the newborn of a woman with proven immunity prior to pregnancy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28649394/functional-neuroimaging-and-chorea-a-systematic-review
#14
REVIEW
Debra J Ehrlich, Ruth H Walker
Chorea is a hyperkinetic movement disorder consisting of involuntary irregular, flowing movements of the trunk, neck or face. Although Huntington's disease is the most common cause of chorea in adults, chorea can also result from many other neurodegenerative, metabolic, and autoimmune conditions. While the pathophysiology of these different conditions is quite variable, recent advances in functional imaging have enabled the development of new methods for analysis of brain activity and neuronal dysfunction. In this paper we review the growing body of functional imaging data that has been performed in chorea syndromes and identify particular trends, which can be used to better understand the underlying network changes within the basal ganglia...
2017: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/28649270/low-values-of-central-venous-oxygen-saturation-scvo2-during-surgery-and-anastomotic-leak-of-abdominal-trauma-patients
#15
Andres Isaza-Restrepo, Jose F Moreno-Mejia, Juan S Martin-Saavedra, Milciades Ibañez-Pinilla
BACKGROUND: There is a well known relationship between hypoperfusion and postoperative complications like anastomotic leak. No studies have been done addressing this relationship in the context of abdominal trauma surgery. Central venous oxygen saturation is an important hypoperfusion marker of potential use in abdominal trauma surgery for identifying the risk of anastomotic leak development. The purpose of this study was to identify the relationship between low values of central venous oxygen saturation and anastomotic leak of gastrointestinal sutures in the postoperative period in abdominal trauma surgery...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28649159/initial-simulated-ffr-investigation-using-flow-measurements-in-patient-specific-3d-printed-coronary-phantoms
#16
Lauren Shepard, Kelsey Sommer, Richard Izzo, Alexander Podgorsak, Michael Wilson, Zaid Said, Frank J Rybicki, Dimitrios Mitsouras, Stephen Rudin, Erin Angel, Ciprian N Ionita
PURPOSE: Accurate patient-specific phantoms for device testing or endovascular treatment planning can be 3D printed. We expand the applicability of this approach for cardiovascular disease, in particular, for CT-geometry derived benchtop measurements of Fractional Flow Reserve, the reference standard for determination of significant individual coronary artery atherosclerotic lesions. MATERIALS AND METHODS: Coronary CT Angiography (CTA) images during a single heartbeat were acquired with a 320×0...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28648125/accuracy-of-the-diagnostic-evaluation-of-hepatocellular-carcinoma-with-li-rads
#17
Weimin Liu, Jie Qin, Ruomi Guo, Sidong Xie, Hang Jiang, Xiaohong Wang, Zhuang Kang, Jin Wang, Hong Shan
Background There are few studies about the Liver Imaging Reporting and Data System (LI-RADS), which was developed with the purpose of standardizing the interpretation and reporting of liver imaging examinations in patients at risk for hepatocellular carcinoma (HCC). Purpose To evaluate the diagnostic accuracy of HCC diagnosis using LI-RADS. Material and Methods The computed tomography (CT), magnetic resonance imaging (MRI), and clinical data of 297 lesions in 249 patients between June 2012 and August 2013 were retrospectively analyzed...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28648123/value-of-intravoxel-incoherent-motion-in-assessment-of-pathological-grade-of-clear-cell-renal-cell-carcinoma
#18
Qingqiang Zhu, Jing Ye, Wenrong Zhu, Jingtao Wu, Wenxin Chen
Background Intravoxel incoherent motion (IVIM) can provide a unique view of tissue perfusion without the use of exogenous contrast agents. Purpose To investigate the value of IVIM in assessing grades of clear cell renal cell carcinoma (CRCC). Material and Methods A total of 107 patients with pathologically proven CRCC were included, 26 with grade I, 27 with grade II, 25 with grade III, and 29 with grade IV. These tumors were divided into low (I + II) and high grades (III + IV). Nine b values (0, 30, 50, 80, 150, 300, 500, 800, and 1500 s/mm(2)) were used in diffusion-weighted imaging (DWI)...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28647936/18f-fdg-pet-ct-pulmonary-infiltrates-in-non-hodgkin-lymphoma-patients-treated-with-combined-immunochemotherapy-incidence-and-clinical-characteristics
#19
Yael C Cohen, Tamar Berger, Lora Eshel, Dorit Stern, Osnat Bairey, Pia Raanani, Ofer Shpilberg
BACKGROUND: Pulmonary infiltrates (PIs) detected in patients with non-Hodgkin lymphoma (NHL) may present a diagnostic challenge due to their wide differential diagnosis, including infection, pulmonary lymphoma and immunochemotherapy-associated pulmonary toxicity. OBJECTIVES: To characterize therapy-associated PIs by positron emission tomography/computed tomography (PET/CT) imaging. METHODS: We conducted a historical analysis of fluorodeoxyglucose-PET/CT (18F-FDG-PET/CT) PIs in NHL patients treated with combined immunochemotherapy including rituximab...
June 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28647935/evaluation-of-patients-with-acute-chest-pain-using-spect-myocardial-perfusion-imaging-prognostic-implications-of-mildly-abnormal-scans
#20
Ronen Goldkorn, Alexey Naimushin, Roy Beigel, Ekaterina Naimushin, Michael Narodetski, Shlomi Matetzky
BACKGROUND: While patients presenting to emergency departments (ER) with chest pain are increasingly managed in chest pain units (CPU) that utilize accelerated diagnostic protocols for risk stratification, such as single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI), data are lacking regarding the prognostic implications of mildly abnormal scans in this population. OBJECTIVES: To evaluate the prognostic implications of mildly abnormal SPECT MPI results in patients with acute chest pain...
June 2017: Israel Medical Association Journal: IMAJ
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