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https://www.readbyqxmd.com/read/28820541/automatic-estimation-of-optimal-deployment-of-transcatheter-aortic-valve-implantation-using-computed-tomography
#1
Arthur Kerner, Sobhi Abadi, Roy Dotan, Marcia Javitt, Doron Aronson, Jonathan Lessick
BACKGROUND: A comparison was made between the accuracy of and time saved by using novel automated software for pre-procedural computed tomography (CT) planning before transcatheter aortic valve implantation (TAVI) and manual methods. Preprocedural CT to assess aortic annulus dimensions and predict the optimal C-arm implant angle before TAVI can reduce complications related to incorrect prosthesis sizing and positioning. METHODS: A total of 61 consecutive patients underwent TAVI using either the SAPIEN XT or CoreValve prosthesis...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28818853/interobserver-agreement-and-image-quality-of-functional-cardiac-ultrasound-measures-used-in-a-randomised-trial-of-delayed-cord-clamping-in-preterm-infants
#2
Himanshu Popat, Kristy P Robledo, Lucille Sebastian, Nicholas Evans, Andrew Gill, Martin Kluckow, Sanjay Sinhal, Koert de Waal, William Tarnow-Mordi, David Osborn
OBJECTIVE: Functional cardiac ultrasound measures are used clinically and in trials for assessing the haemodynamic status of newborn infants. Superior vena cava (SVC) flow and right ventricular output (RVO) are established measures of systemic blood flow on the first postnatal day. The objective was to assess image quality and interobserver agreement of these measures in preterm infants enrolled in a randomised trial of immediate versus delayed cord clamping. DESIGN AND SETTING: Image quality and interobserver agreement for SVC flow, RVO and ductus arteriosus (DA) size were assessed on measurements taken at 3-6, 6-12 and 20-28 hours for the first 10 infants enrolled at each of four sites (total 40)...
August 17, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28816972/low-second-to-fourth-digit-ratio-in-dupuytren-disease
#3
Takuya Yokoi, Takuya Uemura, Kenichi Kazuki, Ema Onode, Kosuke Shintani, Mitsuhiro Okada, Hiroaki Nakamura
The ratio of the lengths of the second and fourth digits (2D:4D) has been described as reflecting endogenous prenatal androgen exposure. In general, 2D:4D is lower in men than in women and has potential as a biomarker or predictor for various diseases, athletic ability, and academic performance. Dupuytren disease has digital flexion contractures and is known to predominate in men, but the pathogenesis of the disease remains unclear. To clarify the relationships between Dupuytren disease and endogenous androgens, we performed a retrospective analysis of hand radiographs to investigate 2D:4D in Dupuytren disease...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816952/prediction-of-microvascular-invasion-of-hepatocellular-carcinoma-with-preoperative-diffusion-weighted-imaging-a-comparison-of-mean-and-minimum-apparent-diffusion-coefficient-values
#4
Jinkun Zhao, Xubin Li, Kun Zhang, Xiaoyu Yin, Xiangfu Meng, Lizhu Han, Xuening Zhang
The aim of the study was to investigate the value of preoperative diffusion-weighted imaging (DWI) in predicting microvascular invasion (MVI) of hepatocellular carcinoma (HCC), using and comparing mean and minimum apparent diffusion coefficient (ADC) values.Preoperative MR images of 318 patients with HCC confirmed by surgical pathology were retrospectively analyzed. All patients underwent preoperative DWI on a 1.5 Tesla MRI scanner. The mean and minimum ADC values of the tumors were measured. Interobserver agreements were assessed by the intraclass correlation coefficient (ICC)...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816871/aospine-classification-systems-subaxial-thoracolumbar
#5
Klaus J Schnake, Gregory D Schroeder, Alexander R Vaccaro, Cumhur Oner
Numerous classification systems for subaxial and thoracolumbar spine injuries were proposed in the past with the attempt to facilitate communication between physicians. The AO-Magerl, thoracolumbar system, and Subaxial Cervical Spine Injury Classification systems are all well known, but did not achieve universal international adoption. A group of international experienced spine trauma surgeons were brought together by AOSpine with the goal to develop a comprehensive yet simple classification system for spinal trauma...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28816167/variabilities-of-magnetic-resonance-imaging-computed-tomography-and-positron-emission-tomography-computed-tomography-based-tumor-and-lymph-node-delineations-for-lung-cancer-radiation-therapy-planning
#6
Kishor Karki, Siddharth Saraiya, Geoffrey D Hugo, Nitai Mukhopadhyay, Nuzhat Jan, Jessica Schuster, Matthew Schutzer, Lester Fahrner, Robert Groves, Kathryn M Olsen, John C Ford, Elisabeth Weiss
PURPOSE: To investigate interobserver delineation variability for gross tumor volumes of primary lung tumors and associated pathologic lymph nodes using magnetic resonance imaging (MRI), and to compare the results with computed tomography (CT) alone- and positron emission tomography (PET)-CT-based delineations. METHODS AND MATERIALS: Seven physicians delineated the tumor volumes of 10 patients for the following scenarios: (1) CT only, (2) PET-CT fusion images registered to CT ("clinical standard"), and (3) postcontrast T1-weighted MRI registered with diffusion-weighted MRI...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28815574/age-related-reference-values-for-the-pediatric-scale-for-assessment-and-rating-of-ataxia-a-multicentre-study
#7
Tjitske F Lawerman, Rick Brandsma, Huibert Burger, Johannes G M Burgerhof, Deborah A Sival
AIM: For reliable assessment of ataxia severity in children, the Childhood Ataxia and Cerebellar Group of the European Pediatric Neurology Society aimed to validate the Scale for Assessment and Rating of Ataxia (SARA) according to age. METHOD: Twenty-two pediatric ataxia experts from 15 international institutions scored videotaped SARA performances in 156 typically developing children (4-16y: m/f=1; 12 children per year of age; including nine different nationalities)...
August 17, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28813196/hepatic-parenchymal-heterogeneity-as-a-marker-for-oxaliplatin-induced-sinusoidal-obstruction-syndrome-correlation-with-treatment-response-of-colorectal-cancer-liver-metastases
#8
Na Yeon Han, Beom Jin Park, Kyung Sook Yang, Min Ju Kim, Deuk Jae Sung, Ki Choon Sim, Sung Bum Cho
OBJECTIVE: The objective of our study was to evaluate the influence of oxaliplatin-based chemotherapy (OBC)-induced hepatic parenchymal heterogeneity detected on contrast-enhanced CT scans on response of liver metastasis. We chose to study hepatic parenchymal heterogeneity on the basis of the assumption that hepatic parenchymal heterogeneity may indicate the presence of chemotherapy-induced sinusoidal obstruction syndrome (SOS). MATERIALS AND METHODS: For this retrospective study, 104 patients with hepatic metastases from colorectal cancer (male-female ratio, 66:38; age range, 20-80 years) who had undergone OBC and serial CT studies were consecutively registered...
August 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28811040/implant-specific-follow-up-imaging-of-treated-intracranial-aneurysms-tof-mra-vs-metal-artifact-reduced-intravenous-flat-panel-computed-tomography-angiography-fpcta
#9
N H Hänsel, G A Schubert, B Scholz, O Nikoubashman, A E Othman, M Wiesmann, R Pjontek, M A Brockmann
AIM: To compare the diagnostic quality of time-of-flight magnetic resonance angiography (TOF-MRA) and metal-artefact-reduction (MAR) flat-panel-detector computed tomography angiography (FPCTA) and to determine the imaging technique best suited for evaluation endovascular and surgically treated aneurysms. METHODS: The image quality of TOF-MRA and MAR-FPCTA of 44 intracranial implants (coiling: n=20; clipping: n=15; coiling + stenting: n=9) in a patient cohort of 25 was evaluated by two independent readers...
August 12, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28809722/classification-for-assessing-the-quality-of-diagnostic-coronary-angiography
#10
Philippe Généreux, Roxana Mehran, Martin B Leon, Nicolas Bettinger, Gregg W Stone
Coronary angiography remains the gold standard for diagnosing obstructive coronary artery disease. However, no standardized, objective, and quantitative classification to assess the quality of coronary angiography exists. In the present report, we sought to establish a novel standardized quantitative classification for the quality of coronary angiography, taking into consideration two main parameters: coronary contrast filling and coronary sinus contrast reflux. Intraobserver and interobserver reproducibility performed among 70 angiograms and 9 readers demonstrated excellent and substantial reproducibility, respectively...
August 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28808951/what-is-the-diagnostic-accuracy-of-the-duck-walk-test-in-detecting-meniscal-tears
#11
A Van der Post, J C A Noorduyn, V A B Scholtes, E L A R Mutsaerts
BACKGROUND: Clinical weightbearing provocation tests, like the duck walk test, may be of value in diagnosing or screening for medial meniscal tears. However, evidence of the diagnostic accuracy of the duck walk test is lacking. QUESTIONS/PURPOSES: (1) To determine the sensitivity and specificity of the duck walk test in diagnosing medial meniscal tears. (2) To determine whether tear location, tear cause (traumatic versus degenerative), and ACL insufficiency were associated with differences in the sensitivity and specificity of the test...
August 14, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28808768/high-resolution-mri-3t-mri-in-diagnosis-of-wrist-pain-is-diagnostic-arthroscopy-still-necessary
#12
Sabine Ochman, B Wieskötter, M Langer, V Vieth, M J Raschke, C Stehling
INTRODUCTION: 3T MRI has become increasingly available for better imaging of interosseous ligaments, TFCC, and avascular necrosis compared with 1.5T MRI. This study assesses the sensitivity and specificity of 3T MRI compared with arthroscopy as the gold standard. PATIENTS AND METHODS: Eighteen patients were examined with 3T MRI using coronal T1-TSE; PD-FS; and coronal, sagittal, and axial contrast-enhanced T1-FFE-FS sequences. Two musculoskeletal radiologists evaluated the images independently...
August 14, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28808091/inter-rater-reliability-and-downstream-financial-implications-of-electrocardiography-screening-in-young-athletes
#13
Harshil Dhutia, Aneil Malhotra, Tee Joo Yeo, Irina Chis Ster, Vincent Gabus, Alexandros Steriotis, Helder Dores, Greg Mellor, Carmen García-Corrales, Bode Ensam, Viknesh Jayalapan, Vivienne Anne Ezzat, Gherardo Finocchiaro, Sabiha Gati, Michael Papadakis, Maria Tome-Esteban, Sanjay Sharma
BACKGROUND: Preparticipation screening for cardiovascular disease in young athletes with electrocardiography is endorsed by the European Society of Cardiology and several major sporting organizations. One of the concerns of the ECG as a screening test in young athletes relates to the potential for variation in interpretation. We investigated the degree of variation in ECG interpretation in athletes and its financial impact among cardiologists of differing experience. METHODS AND RESULTS: Eight cardiologists (4 with experience in screening athletes) each reported 400 ECGs of consecutively screened young athletes according to the 2010 European Society of Cardiology recommendations, Seattle criteria, and refined criteria...
August 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28807527/does-ct-help-in-predicting-preepiglottic-space-invasion-in-laryngeal-carcinoma
#14
Gülpembe Bozkurt, Özlem Ünsal, İrfan Çelebi, Burak Ayhan, Umman Guliyev, Pınar Akova, Tülay Başak, Berna Uslu Coşkun
OBJECTIVE: Evaluating preepiglottic space involvement in laryngeal cancer by CT may lead misinterpretation. We sought to understand the causes of misinterpretation in evaluating the preepiglottic space by CT and assessed the effects of misinterpretation in treatment plans of patients with laryngeal squamous cell carcinomas. METHODS: Specimen histopathology reports of 102 (99 male, 3 female) patients who underwent total or partial laryngectomy due to supraglottic and/or transglottic laryngeal carcinoma were reviewed...
August 11, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28807372/accuracy-of-orthopantomography-for-apical-periodontitis-without-endodontic-treatment
#15
Cosimo Nardi, Linda Calistri, Silvia Pradella, Isacco Desideri, Chiara Lorini, Stefano Colagrande
INTRODUCTION: This study aimed to evaluate the diagnostic accuracy of orthopantomography (OPT) for the detection of clinically/surgically confirmed apical periodontitis (AP) without endodontic treatment using cone-beam computed tomographic (CBCT) imaging as the reference standard. METHODS: One hundred twenty patients without endodontically treated AP (diseased group) were detected via CBCT imaging using the periapical index system. They were divided into groups of 10 each according to the size of the lesion (2-4...
August 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28807342/accuracy-and-interobserver-agreement-of-retroareolar-frozen-sections-in-nipple-sparing-mastectomies
#16
David A Suarez-Zamora, Luis E Barrera-Herrera, Mauricio A Palau-Lazaro, Fabio Torres-Franco, Alejandro Orozco-Plazas, Lisette Barreto-Hauzeur, Paula A Rodriguez-Urrego
In the last decades, surgical treatment of breast cancer has enormously changed. As a result, nipple-sparing mastectomy (NSM) has evolved as an oncologically safe and cosmetic approach. NSM includes a subareolar frozen section to evaluate malignancy. We determined the accuracy of subareolar frozen section diagnosis, analyzed the discrepancy factor, and estimated the interobserver agreement of frozen section in NSM. A retrospective review of all NSMs at our institution from 2009 to 2015 was performed. Frozen sections were compared to the final diagnoses to analyze the accuracy of subareolar frozen sections...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28806971/factors-contributing-to-the-variability-of-a-predictive-score-for-cranial-cruciate-ligament-deficiency-in-labrador-retrievers
#17
Devin P Cunningham, Ayman A Mostafa, Wanda J Gordan-Evans, Randy J Boudrieau, Dominique J Griffon
BACKGROUND: We recently reported that a conformation score derived from the tibial plateau angle (TPA) and the femoral anteversion angle (FAA), best discriminates limbs predisposed to, or affected by cranial cruciate ligament disease (CCLD), from those that are at low risk for CCLD. The specificity and sensitivity of this score were high enough to support further investigations toward its use for large-scale screening of dogs by veterinarians. The next step, which is the objective of the current study, is to determine inter-observer variability of that CCLD score in a large population of Labrador Retrievers...
August 14, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28806321/liver-imaging-reporting-and-data-system-discordance-between-computed-tomography-and-gadoxetate-enhanced-magnetic-resonance-imaging-for-detection-of-hepatocellular-carcinoma-major-features
#18
Victoria Chernyak, Milana Flusberg, Amy Law, Mariya Kobi, Viktoriya Paroder, Alla M Rozenblit
PURPOSE: The goal of this study was to compare agreement between computed tomography (CT) and magnetic resonance imaging (MRI) in the evaluation of the major Liver Imaging Reporting and Data System (LI-RADS) features used in assessment of hepatocellular carcinoma: arterial phase hyperenhancement (APHE), portal venous phase washout (WO), capsule appearance (capsule), and largest diameter (diameter). METHODS: Patients with liver protocol CT and gadoxetate-enhanced MRI within 1 month of each other and at least 1 discrete untreated liver lesion were included...
August 12, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28805930/reliability-of-the-qualitative-behavior-assessment-as-included-in-the-welfare-quality-assessment-protocol-for-growing-pigs
#19
I Czycholl, E Grosse Beilage, C Henning, J Krieter
Positive emotions constitute a very important part of animal welfare. They are, however, also the most challenging elements to be objectively measured. Due to its feasibility, the qualitative behavior assessment (QBA) is included in the Welfare Quality Assessment protocol for growing pigs as the animal-based measurement tool for positive emotions. Reliability testing on the QBA in the form as included in the protocols is, however, rare. Therefore, the present study aimed at the evaluation of the inter- and intraobserver as well as test-retest reliability of the QBA in growing pigs...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28803685/quantification-of-pulmonary-regurgitation-by-vector-flow-mapping-in-congenital-heart-patients-after-repair-of-right-ventricular-outflow-obstruction-a-preliminary-study
#20
Ashley Hoi-Man To, Vivian Wing-Yi Li, Ming-Yen Ng, Yiu-Fai Cheung
BACKGROUND: Vector flow mapping (VFM) enables direct visualization of flow pattern and estimation of flow volume. The aim of this study was to determine its accuracy in the quantification of pulmonary regurgitation (PR) in congenital heart patients after repair of right ventricular (RV) outflow obstruction. METHODS: This study comprised two parts: (1) validation of VFM in the quantification of PR in patients with repaired tetralogy of Fallot by cardiac magnetic resonance and (2) clinical application of VFM to determine PR in patients after biventricular repair of pulmonary atresia and stenosis with intact ventricular septum...
August 10, 2017: Journal of the American Society of Echocardiography
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