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https://www.readbyqxmd.com/read/29156146/effectiveness-of-a-staged-us-and-unenhanced-mr-imaging-algorithm-in-the-diagnosis-of-pediatric-appendicitis
#1
Elizabeth H Dibble, David W Swenson, Claudia Cartagena, Grayson L Baird, Thaddeus W Herliczek
Purpose To establish, in a large cohort, the diagnostic performance of a staged algorithm involving ultrasonography (US) followed by conditional unenhanced magnetic resonance (MR) imaging for the imaging work-up of pediatric appendicitis. Materials and Methods A staged imaging algorithm in which US and unenhanced MR imaging were performed in pediatric patients suspected of having appendicitis was implemented at the authors' institution on January 1, 2011, with US as the initial modality followed by unenhanced MR imaging when US findings were equivocal...
November 20, 2017: Radiology
https://www.readbyqxmd.com/read/29154228/practical-prognostic-score-for-predicting-the-extent-of-resection-and-neurological-outcome-of-gliomas-in-the-sensorimotor-area
#2
Giannantonio Spena, Federico D'Agata, Pier Paolo Panciani, Luciano Buttolo, Michela Buglione di Monale Bastia, Marco Maria Fontanella
OBJECTIVE: In this prospective study, we assessed the utility of a novel prognostic score (PS) in guiding the surgical strategy of patients with sensorimotor area gliomas. PATIENTS AND METHODS: Form December 2012 to April 2016, we collected data from patients diagnosed with brain gliomas in the sensorimotor area. All the patients had intraoperatively confirmed contiguity or continuity with sensorimotor cortical and subcortical structures. Several clinical and radiological factors were analyzed to generate a PS for each patient (range 1-8)...
November 16, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29152563/integrated-radiomic-framework-for-breast-cancer-and-tumor-biology-using-advanced-machine-learning-and-multiparametric-mri
#3
Vishwa S Parekh, Michael A Jacobs
Radiomics deals with the high throughput extraction of quantitative textural information from radiological images that not visually perceivable by radiologists. However, the biological correlation between radiomic features and different tissues of interest has not been established. To that end, we present the radiomic feature mapping framework to generate radiomic MRI texture image representations called the radiomic feature maps (RFM) and correlate the RFMs with quantitative texture values, breast tissue biology using quantitative MRI and classify benign from malignant tumors...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/29149352/prognostic-potential-of-markers-of-bone-turnover-in-delayed-healing-tibial-diaphyseal-fractures
#4
Malhar Kumar, Dnyaneshwar Shelke, Saumil Shah
INTRODUCTION: Clinical and radiographic examinations detect delayed or nonunion only after the event has occurred. Biochemical markers of bone turnover (BTMs) are promising laboratory tools that offer an early insight into the likelihood of delayed union. We hypothesized that BTMs display temporal variations following fractures and the behavior of BTMs differ between normal and delayed union of fractures. METHODS: This was a prospective study of patients with closed fracture of tibia treated with intramedullary, interlocking nailing...
November 17, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29145673/imaging-characteristics-predict-operative-difficulty-mobilizing-the-sciatic-nerve-for-proximal-hamstring-repair
#5
Thomas J Wilson, B Matthew Howe, Robert J Spinner, Aaron J Krych
BACKGROUND: Repair of proximal hamstring avulsions requires mobilization of the sciatic nerve away from the tendon stump, which can be achieved with varying difficulty depending on the degree of scar formation and adherence. Predicting when a scarred, adherent, difficult-to-mobilize nerve will be encountered has been difficult. OBJECTIVE: To identify clinical and/or radiological factors predictive of a difficult intraoperative dissection of the sciatic nerve during proximal hamstring repair...
November 14, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29145578/the-changing-paradigm-of-management-of-liver-abscesses-in-chronic-granulomatous-disease
#6
David M Straughan, Kaitlin C McLoughlin, John E Mullinax, Beatriz E Marciano, Alexandra F Freeman, Victoria L Anderson, Gulbu Uzel, Sa D C Azoury, Rebecca Sorber, Humair S Quadri, Harry L Malech, Suk See DeRavin, Natasha Kamal, Christopher Koh, Christa S Zerbe, Douglas B Kuhns, John I Gallin, Theo Heller, Steven M Holland, Udo Rudloff
Background: Chronic granulomatous disease (CGD) is a rare genetic disorder causing recurrent infections. Over one quarter of patients develop hepatic abscesses and liver dysfunction. Recent reports suggest disease-modifying treatment with corticosteroids is effective for these abscesses. Comparison of corticosteroid therapy to traditional invasive treatments has not been performed. Methods: Records of 268 patients with CGD treated at the National Institutes of Health (NIH) from 1980 to 2014 were reviewed...
November 14, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29145042/relationship-of-t1-slope-with-loss-of-lordosis-and-surgical-outcomes-after-laminoplasty-for-cervical-ossification-of-the-posterior-longitudinal-ligament
#7
Masashi Miyazaki, Toshinobu Ishihara, Naoki Notani, Shozo Kanezaki, Hiroshi Tsumura
OBJECTIVE: T1 slope (T1S) has emerged as a predictor of kyphotic alignment change after laminoplasty. Although it was reported that patients with cervical ossification of the posterior longitudinal ligament (OPLL) and higher T1S had more pronounced lordotic curvature before surgery and higher loss of cervical lordosis after surgery, few studies have attempted to correlate these findings with clinical outcomes. We aimed to investigate the relationship of T1S with loss of cervical lordosis and surgical outcomes after laminoplasty for cervical OPLL...
November 13, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29144965/role-of-serum-1-3%C3%AE-d-glucan-assay-in-early-diagnosis-of-invasive-fungal-infections-in-a-neonatal-intensive-care-unit
#8
Abd Elazeez Shabaan, Lobna Mahmoud Elbaz, Wafaa M El-Emshaty, Basma Shouman
OBJECTIVES: To study the microbiological pattern of late onset neonatal sepsis cultures and to assess the diagnostic performance of serum (1,3)-β-d-glucan level for early diagnosis of invasive fungemia in high-risk infants admitted to a neonatal intensive care unit. METHODS: A prospective multicenter clinical trial conducted on infants at high risk for invasive fungal infections, with suspected late onset sepsis, admitted to a neonatal intensive care unit at Mansoura University Children's Hospital and Mansoura General Hospital between March 2014 and February 2016...
November 13, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/29144159/shear-wave-elastography-quantitative-assessment-of-the-male-breast-added-value-to-distinguish-benign-and-malignant-palpable-masses
#9
Amandine Crombe, Gabrielle Hurtevent-Labrot, Maryam Asad-Syed, Jean Palussiere, Gaetan MacGrogan, Michèle Kind, Stéphane Ferron
OBJECTIVE: To evaluate the ability of shear-wave elastography (SWE) to distinguish between benign and malignant palpable masses of the adult male breast. METHODS: Clinical examination, mammography, B-mode and Doppler ultrasound (US) findings and SWE quantitative parameters were compared in 50 benign lesions (including 40 gynecomastias) and 15 malignant lesions (invasive ductal carcinomas) from 65 patients who were consecutively addressed for specialized advice at our comprehensive cancer center...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29141724/prostatic-abscess-due-to-burkholderia-pseudomallei-facilitating-diagnosis-to-optimize-management
#10
Jowita Kozlowska, Simon Smith, Jay Roberts, Simon Pridgeon, Josh Hanson
Prostatic involvement is common in men with melioidosis. Indeed, some clinicians recommend radiological screening of all male patients as an undrained prostatic abscess may result in relapse of this potentially fatal disease. However, sophisticated medical imaging is frequently unavailable in the remote and resource-poor locations where patients are managed. In this retrospective study from Queensland, Australia, 22/144 (15%) men with melioidosis had a radiologically confirmed prostatic abscess. The absence of urinary symptoms had a negative predictive value (NPV) (95% confidence interval [CI]) for prostatic abscess of 96% (90-99%), whereas a urinary leukocyte count of < 50 × 10(6)/L had an NPV (95% CI) of 100% (94-100%)...
October 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29141048/microcirculation-in-open-vs-minimally-invasive-dorsal-stabilization-of-thoracolumbar-fractures
#11
Bergita Ganse, Miguel Pishnamaz, Philipp Kobbe, Christian Herren, Gertraud Gradl-Dietsch, Franziska Böhle, Bernd Johannes, Bong-Sung Kim, Klemens Horst, Matthias Knobe
Standard open and percutaneous minimally invasive surgical procedures co-exist in the treatment of fractures of the thoracolumbar spine. Shorter skin incisions just above the pedicles are used in minimally invasive procedures. Full-length skin incisions and invasive preparations are applied in the standard open approach. While both methods show equivalent rates of intraoperative surgical complications and comparable clinical and radiological outcomes, blood loss and operation time have shown to be decreased in minimally invasive treatment...
2017: PloS One
https://www.readbyqxmd.com/read/29140122/lymphangioleiomyomatosis-diagnosis-and-management-high-resolution-chest-computed-tomography-transbronchial-lung-biopsy-and-pleural-disease-management-an-official-american-thoracic-society-japanese-respiratory-society-clinical-practice-guideline
#12
Nishant Gupta, Geraldine A Finlay, Robert M Kotloff, Charlie Strange, Kevin C Wilson, Lisa R Young, Angelo M Taveira-DaSilva, Simon R Johnson, Vincent Cottin, Steven A Sahn, Jay H Ryu, Kuniaki Seyama, Yoshikazu Inoue, Gregory P Downey, MeiLan K Han, Thomas V Colby, Kathryn A Wikenheiser-Brokamp, Cristopher A Meyer, Karen Smith, Joel Moss, Francis X McCormack
BACKGROUND: Recommendations regarding key aspects related to the diagnosis and pharmacological treatment of lymphangioleiomyomatosis (LAM) were recently published. We now provide additional recommendations regarding four specific questions related to the diagnosis of LAM and management of pneumothoraces in patients with LAM. METHODS: Systematic reviews were performed and then discussed by a multidisciplinary panel. For each intervention, the panel considered its confidence in the estimated effects, the balance of desirable (i...
November 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29138696/use-of-common-inflammatory-markers-in-the-long-term-screening-of-total-hip-arthroprosthesis-infections-our-experience
#13
Gabriele Falzarano, Antonio Piscopo, Predrag Grubor, Giuseppe Rollo, Antonio Medici, Valerio Pipola, Michele Bisaccia, Auro Caraffa, Elizabeth Mary Barron, Francesco Nobile, Raffaele Cioffi, Luigi Meccariello
Orthopedic implants have become essential components of modern medicine. The risk of infection of total hip arthroplasty (THA) is 1.5%-2%. Are the C-reactive protein (CRP), the erythrocyte sedimentation rate (ESR), and procalcitonin (PCT) good markers for THA infection screenings? From February 2009 to December 2012 at our Department of Orthopedics and Traumatology, 1248 patients were treated with THA. No prosthesis was cemented. All patients received antibiotic prophylaxis. All patients were discharged approximately 7...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/29138658/-femoral-varising-osteotomy-by-external-opening-for-the-treatment-of-lateral-femorotibial-gonarthroses-associated-with-idiopathic-genu-valgum-a-retrospective-a-study-of-10-cases
#14
Asma Ben Cheikh, Mahmoud Ben Maitigue, Karim Masmoudi, Thabet Mouelhi, Nader Naouar, Yamen Grissa, Karim Bouattour, Walid Osman, Mohamed Laziz Ben Ayeche
Femoral varus osteotomy is a conservative treatment for external single-compartment gonarthrosis. This surgical procedure is little used and outcomes are little studied.This study aimed to assess the clinical and radiological results of femoral varising osteotomy in subjects with external femorotibial gonarthrosis associated with idiopathic genu valgum whose data were recorded over a period of 21 years (1992- 2013) in the Department of Orthopedics at Sahloul University Hospital, Sousse. The clinical evaluation of patients was performed using the IKS score (International Knee Society)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29136194/fast-skin-dose-estimation-system-for-interventional-radiology
#15
Takeshi Takata, Jun'ichi Kotoku, Hideyuki Maejima, Shinobu Kumagai, Norikazu Arai, Takenori Kobayashi, Kenshiro Shiraishi, Masayoshi Yamamoto, Hiroshi Kondo, Shigeru Furui
To minimise the radiation dermatitis related to interventional radiology (IR), rapid and accurate dose estimation has been sought for all procedures. We propose a technique for estimating the patient skin dose rapidly and accurately using Monte Carlo (MC) simulation with a graphical processing unit (GPU, GTX 1080; Nvidia Corp.). The skin dose distribution is simulated based on an individual patient's computed tomography (CT) dataset for fluoroscopic conditions after the CT dataset has been segmented into air, water and bone based on pixel values...
November 10, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/29135365/deep-learning-to-classify-radiology-free-text-reports
#16
Matthew C Chen, Robyn L Ball, Lingyao Yang, Nathaniel Moradzadeh, Brian E Chapman, David B Larson, Curtis P Langlotz, Timothy J Amrhein, Matthew P Lungren
Purpose To evaluate the performance of a deep learning convolutional neural network (CNN) model compared with a traditional natural language processing (NLP) model in extracting pulmonary embolism (PE) findings from thoracic computed tomography (CT) reports from two institutions. Materials and Methods Contrast material-enhanced CT examinations of the chest performed between January 1, 1998, and January 1, 2016, were selected. Annotations by two human radiologists were made for three categories: the presence, chronicity, and location of PE...
November 13, 2017: Radiology
https://www.readbyqxmd.com/read/29132999/radiologists-and-social-media-do-not-forget-about-facebook
#17
Rebecca L Seidel, Aryan Jalilvand, Jean Kunjummen, Lea Gilliland, Richard Duszak
PURPOSE: Facebook (Facebook, Inc, Menlo Park, California, USA) is the most popular social networking platform worldwide. Facebook groups are virtual communities of people who share a common interest. Breast Imaging Radiologists is a Facebook group for radiologists with an interest in breast imaging. The purpose of this study was to analyze the membership and activity of the Breast Imaging Radiologists Facebook group (BIRFG) for 2 years since its inception. METHODS: Using both the Grytics (www...
November 11, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29132634/a-model-to-determine-payments-associated-with-radiology-procedures
#18
Thusitha Mabotuwana, Christopher S Hall, Shiby Thomas, Christoph Wald
OBJECTIVE: Across the United States, there is a growing number of patients in Accountable Care Organizations and under risk contracts with commercial insurance. This is due to proliferation of new value-based payment models and care delivery reform efforts. In this context, the business model of radiology within a hospital or health system context is shifting from a primary profit-center to a cost-center with a goal of cost savings. Radiology departments need to increasingly understand how the transactional nature of the business relates to financial rewards...
December 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29131002/low-tidal-volume-positive-end-expiratory-pressure-versus-high-tidal-volume-zero-positive-end-expiratory-pressure-and-postoperative-pulmonary-functions-in-robot-assisted-laparoscopic-radical-prostatectomy
#19
Murat Haliloglu, Beliz Bilgili, Mehtap Ozdemir, Tumay Umuroglu, Nurten Bakan
OBJECTIVE: The aim was to compare the effects of low tidal volume (VT) and moderate positive end-expiratory pressure(PEEP) with high tidal volume (VT) and zero end-expiratory pressure(ZEEP), on postoperative pulmonary functions and oxygenation in patients undergoing robot-assisted laparoscopic radical prostatectomy. SUBJECTS AND METHODS: Forty-four (44) patients were randomized into low VT-PEEP and high VT-ZEEP groups. The patients were ventilated with VT of 6 ml/kg and 8 cmH2O PEEP in low VT-PEEP group and VT of 10 ml/kg and 0 cmH2O PEEP in high VT-ZEEP group...
October 31, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/29130901/quantification-of-fat-fraction-in-lumbar-vertebrae-correlation-with-age-and-implications-for-bone-marrow-dosimetry-in-molecular-radiotherapy
#20
Maikol Salas-Ramirez, Johannes Tran-Gia, Christian Kesenheimer, Andreas Max Weng, Aleksander Kosmala, Anke Heidemeier, Herbert Koestler, Michael Lassmann
Absorbed dose to active bone marrow is a predictor of hematological toxicity in molecular radiotherapy. Due to the complex composition of bone marrow tissue, the necessity to improve the personalized dosimetry has led to the application of non-conventional imaging methods in nuclear medicine. The aim of this study is to apply magnetic resonance imaging (MRI) for quantification of the fat fraction in lumbar vertebrae and to analyze its implications for bone marrow dosimetry. Methods First, a highly accelerated two-point Dixon MRI sequence for fat-water separation was validated in a 3T system against the magnetic resonance spectroscopy (MRS) gold standard...
November 13, 2017: Physics in Medicine and Biology
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