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https://www.readbyqxmd.com/read/28226685/tracking-of-the-anterior-mitral-leaflet-in-echocardiographic-sequences-using-active-contours
#1
Malik Saad Sultan, Nelson Martins, Diana Veiga, Manuel Joao Ferreira, Miguel Tavares Coimbra, Malik Saad Sultan, Nelson Martins, Diana Veiga, Manuel Joao Ferreira, Miguel Tavares Coimbra, Diana Veiga, Nelson Martins, Malik Saad Sultan, Miguel Tavares Coimbra, Manuel Joao Ferreira
Echocardiography assessment of cardiac valves plays a vital role in the diagnosis of rheumatic heart disease. In the vast majority of cases, the mitral valve gets affected, leading to the thickening of its leaflets that may result in the fusion of their tips. This changes the appearance and reduces the mobility of the leaflets, which also reduce the heart efficiency. Quantifying such parameters provides diagnostic insight. To achieve that, the first step is to identify and then track fast moving leaflets. This work is focused on Anterior Mitral Leaflet (AML) tracking...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28195001/design-and-analysis-of-a-tendon-based-computed-tomography-compatible-robot-with-remote-center-of-motion-for-lung-biopsy
#2
Yunpeng Yang, Shan Jiang, Zhiyong Yang, Wei Yuan, Huaisu Dou, Wei Wang, Daguang Zhang, Yuan Bian
Nowadays, biopsy is a decisive method of lung cancer diagnosis, whereas lung biopsy is time-consuming, complex and inaccurate. So a computed tomography-compatible robot for rapid and precise lung biopsy is developed in this article. According to the actual operation process, the robot is divided into two modules: 4-degree-of-freedom position module for location of puncture point is appropriate for patient's almost all positions and 3-degree-of-freedom tendon-based orientation module with remote center of motion is compact and computed tomography-compatible to orientate and insert needle automatically inside computed tomography bore...
February 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28188426/non-specific-benign-pathological-results-on-transthoracic-core-needle-biopsy-how-to-differentiate-false-negatives
#3
Jung Im Kim, Chang Min Park, Hyungjin Kim, Jong Hyuk Lee, Jin Mo Goo
OBJECTIVES: To determine the negative predictive value (NPV) of non-specific benign results from cone-beam CT (CBCT)-guided transthoracic core-needle biopsy (TTNB) and identify predicting factors for false-negative for malignancies. METHODS: From January 2009-December 2011, 1,108 consecutive patients with 1,116 lung lesions underwent CBCT-guided TTNB using an 18-gauge coaxial cutting needle. Among them, 226 patients with 226 TTNBs, initially diagnosed as non-specific benign, were included in this study...
February 10, 2017: European Radiology
https://www.readbyqxmd.com/read/28187974/no-correlation-between-two-dimensional-measurements-and-three-dimensional-configuration-of-the-pharyngeal-upper-airway-space-in-cone-beam-computed-tomography
#4
Marie Dorothée Abé-Nickler, Samira Pörtner, Peter Sieg, Samer George Hakim
The aim of this study was to evaluate both the 2-dimensional (2D) and 3-dimensional (3D) configuration of the posterior airway space (PAS) in healthy 239 patients using cone-beam computed tomography (CBCT). In particular, we investigated the correlation between the 2D and 3D measurements in view of the potential impact on diagnosis of upper airway obstruction. The pharyngeal airway of each patient was studied at five levels: the level of the posterior nasal spine (PNS), the level of half-height of the PNS and the tip of the soft palate, the level of the tip of the soft palate, the level of the anterior-inferior point of the second vertebra, and at least the level of the top of the epiglottis...
January 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28167193/the-scapula-backward-tipping-test-an-inter-rater-reliability-study
#5
Deepak Sebastian, Raghu Chovvath, Ramesh Malladi
BACKGROUND & PURPOSE: The purpose of this study was to determine the reliability of the scapula backward tipping test (SBTT) in detecting the presence of pectoralis minor (PM) tightness and subsequently scapula forward tipping, in a symptomatic population. PM tightness with scapula forward tipping has been described to cause pain and dysfunction in the shoulder region. METHODS: 30 patients with a diagnosis of shoulder pain were randomly assigned and examined by 2 musculoskeletal physical therapists at a time...
January 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28164048/rare-giant-cell-tumor-of-olecranon-bone
#6
Pawan Goyal, Vishal Gautam, Narender Saini, Yogesh Sharma
INTRODUCTION: Giant cell tumor (GCT) is a bone tumor involving epiphyseal area of bone abutting the subchondral bone. Commonly found in long bones such as proximal tibia and distal femur. We report a case of GCT of olecranon bone in a 23-year-old male. CASE REPORT: A 23-year-old patient presented to our outpatient department with pain and mild swelling at the elbow from last 2 to 3 months. On examination, it was seen that there was a moderate swelling at the tip of the olecranon...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28159943/endotracheal-aspirate-microscopy-cultures-and-endotracheal-tube-tip-cultures-for-early-prediction-of-ventilator-associated-pneumonia-in-neonates
#7
Mehendra Kumar Gupta, Jayashree Mondkar, Anjali Swami, Deeparaj Hegde, Sorabh Goel
OBJECTIVE: To evaluate the utility of endotracheal aspirate microscopy, culture and endotracheal tube tip culture for early diagnosis of ventilator-associated pneumonia in neonates. METHODS: Inborn ventilated neonates were followed-up for ventilator-associated pneumonia using Center for Disease Control and prevention (CDC) criteria. Endotracheal aspirate microscopy, culture and endotracheal tube tip cultures were performed. RESULTS: Ventilator-associated pneumonia occurred in 28/68 (41%) neonates as per CDC criteria...
February 2, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28144719/pitfalls-and-tips-in-the-diagnosis-of-ectopic-pregnancy
#8
REVIEW
E Mausner Geffen, C Slywotzky, G Bennett
Women of reproductive age with pelvic pain, vaginal bleeding, and a positive pregnancy test often require evaluation with pelvic ultrasound. In these situations, the primary role of pelvic ultrasound is to differentiate an ectopic pregnancy from either a normal or abnormal intrauterine pregnancy. While an accurately performed and interpreted pelvic ultrasound results in rapid diagnosis and management, numerous diagnostic pitfalls can lead to negative outcomes. Therefore, familiarity with the appropriate laboratory tests, sonographic technique, and imaging features of ectopic pregnancy is essential for all radiologists...
January 31, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28144612/autoimmune-pancreatitis-diagnosed-with-core-biopsy-obtained-from-a-novel-fork-tip-eus-needle
#9
Tossapol Kerdsirichairat, Sameer D Saini, Priscilla R Chamberlain, Anoop Prabhu
The endoscopic diagnosis of autoimmune pancreatitis from histologic criteria remains challenging as it requires adequate architectural details rather than cytology alone. A 67-year-old man presented with progressive abdominal pain and weight loss. Cross-sectional imaging showed inflammatory changes of the pancreatic body and tail and periaortitis on abdominal computed tomography, but normal serum immunoglobulin G4. A mass-like lesion of the pancreatic body and tail was identified on endoscopic ultrasonography...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28130577/radiological-evaluation-of-tube-depth-and-complications-of-prehospital-endotracheal-intubation-in-pediatric-trauma-a-descriptive-study
#10
T Simons, T Söderlund, L Handolin
PURPOSE: Pediatric prehospital endotracheal intubation (PHETI) is a difficult and rarely performed procedure that remains the gold standard for prehospital airway management when ventilation and/or anesthesia is required, but high complications rates, including malposition continue to concern. We reviewed the experience in our institution of pediatric intubations with particular emphasis on the position of the endotracheal tube (ETT) tip within the trachea and related complications. METHOD: Intubated pediatric patients presenting directly from the scene to our level 1 trauma center, between 2006 and 2014, were included in our study...
January 27, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28129948/improved-method-for-the-detection-of-catheter-colonization-and-catheter-related-bacteremia-in-newborns
#11
P Martín-Rabadán, F Pérez-García, E Zamora Flores, E S Nisa, M Guembe, E Bouza
Accurate diagnosis of catheter-related bloodstream infection (CRBSI) is mandatory for hospital infection control. Peripherally inserted central venous catheters (PICCs) are widely used in intensive care units, but studies about procedures for detection of colonization are scarce in neonates. We sequentially processed 372 PICCs by 2 methods, first by the standard roll-plate (RP) technique and then by rubbing catheters on a blood agar plate after being longitudinally split (LS). With both techniques, we detected 133 colonized PICCs...
January 5, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28128682/percutaneous-cholecystocentesis-in-cats-with-suspected-hepatobiliary-disease
#12
Victoria L Byfield, Julie E Callahan Clark, Bradley J Turek, Charles W Bradley, Mark P Rondeau
Objectives The objective was to evaluate the safety and diagnostic utility of percutaneous ultrasound-guided cholecystocentesis (PUC) in cats with suspected hepatobiliary disease. Methods Medical records of 83 cats with suspected hepatobiliary disease that underwent PUC were retrospectively reviewed. Results At the time of PUC, at least one additional procedure was performed in 79/83 cats, including hepatic aspiration and/or biopsy (n = 75) and splenic aspiration (n = 18). Complications were noted in 14/83 cases, including increased abdominal fluid (n = 11), needle-tip occlusion (n = 1), failed first attempt to penetrate the gall bladder wall (n = 1) and pneumoperitoneum (n = 1)...
January 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28127631/helical-tip-needle-for-transthoracic-percutaneous-image-guided-biopsy-of-lung-tumors-results-of-a-pilot-prospective-comparative-study-with-a-standard-tru-cut-needle
#13
Andrea Veltri, Marco Busso, Diego Sardo, Valeria Angelino, Adriano M Priola, Silvia Novello, Matteo Barba, Gaia Gatti, Luisella Righi
PURPOSE: To prospectively evaluate feasibility and diagnostic performance of the 14-gauge helical-tip (Spirotome™, Cook(®) Medical, Bloomington, USA) needle in transthoracic needle biopsy (TTNB) of lung lesions, compared to a conventional 18-gauge Tru-Cut needle. MATERIALS AND METHODS: Study was institutional review board approved, with informed consent obtained. Data from synchronous Spirotome and Tru-Cut image-guided TTNB of 20 consecutive patients with malignant peripheral lung tumors larger than 3 cm were enrolled for pathologic characterization and mutational analysis...
January 26, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28122804/second-generation-cryoballoon-ablation-for-atrial-fibrillation-in-young-adults-midterm-outcome-in-patients-under-40-years-of-age
#14
Darragh Moran, Valentina De Regibus, Carlo de Asmundis, Ken Takarada, Giacomo Mugnai, Erwin Ströker, Arash Aryana, Saverio Iacopino, Diego Ruggiero, Hugo Enrique Coutiño-Moreno, Rajin Choudhury, Juan-Pablo Abugattas, Ebru Hacioglu, Gaetano Paparella, Pedro Brugada, Gian-Battista Chierchia
AIMS: Pulmonary vein isolation (PVI) has been demonstrated more effective in young patients, in which the substrate for atrial fibrillation (AF) is probably more confined to pulmonary vein potentials. The present study sought to focus on the midterm outcomes in patients under 40 years having undergone PVI with the Cryoballoon Advance because of drug resistant AF. METHODS AND RESULTS: Between June 2012 and December 2015, 57 patients having undergone Cryoballoon ablation (CB-A) below 40 years of age for AF in our centre were retrospectively analysed and considered for our analysis...
January 25, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28122477/design-and-preliminary-evaluation-of-a-self-steering-pneumatically-driven-colonoscopy-robot
#15
Hossein Dehghani, C Ross Welch, Abolfazl Pourghodrat, Carl A Nelson, Dmitry Oleynikov, Prithviraj Dasgupta, Benjamin S Terry
Colonoscopy is a diagnostic procedure to detect pre-cancerous polyps and tumours in the colon, and is performed by inserting a long tube equipped with a camera and biopsy tools. Despite the medical benefits, patients undergoing this procedure often complain about the associated pain and discomfort. This discomfort is mostly due to the rough handling of the tube and the creation of loops during the insertion. The overall goal of this work is to minimise the invasiveness of traditional colonoscopy. In pursuit of this goal, this work presents the development of a semi-autonomous colonoscopic robot with minimally invasive locomotion...
January 26, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28118795/the-perforation-of-the-superior-vena-cava-secondary-to-the-left-subclavian-dialysis-catheter
#16
Atila Turkyilmaz, Sami Karapolat, Mehmet Kilic, Celal Tekinbas
INTRODUCTION: The perforation of the superior vena cava during the placement of dialysis catheter and consequent hemothorax is a rare serious complication. CASE REPORT: Dialysis catheter was placed in the left subclavian vein in a 69-year-old male patient with chronic renal insufficiency who was hospitalized for intracerebral hematoma. During hemodialysis a day after the procedure, the patient was noted having right-sided hemothorax, causing lethargy, dyspnea, hypotension, and bradycardia...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28116267/a-rare-case-of-glomus-tumor-of-the-thenar-eminence-of-the-hand-misdiagnosed-as-carpal-tunnel-syndrome
#17
Supreeth Nekkanti, Archana Meka, Shashikiran R, Sunila Ravi
INTRODUCTION: Glomus body is an apparatus present in the skin at the arterio-venous junction whose main function is to control the body temperature. Hyperplasia of the glomus body results in an entity called glomus tumor. Masson described this entity first in 1924, as a tumor of the neuromyoarterial body. Due to its symptoms, it is of ten misdiagnosed and wrongly treated which adds burden to the patient. CASE REPORT: We report a rare case of glomus tumor presenting at an unusal site that is the thenar eminence of the palm...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28114012/ultrasonic-needles-for-bone-biopsy
#18
Andrew Mathieson, Robert Wallace, Rebecca Cleary, Li Li, Hamish Simpson, Margaret Lucas
Bone biopsy is an invasive clinical procedure where a bone sample is recovered for analysis during the diagnosis of a medical condition. When the architecture of the bone tissue is required to be preserved, a core-needle biopsy is taken. Although this procedure is performed while the patient is under local anaesthesia, the patient can still experience significant discomfort. Additionally, large haematoma can be induced in the soft tissue surrounding the biopsy site due to the large axial and rotational forces which are applied through the needle to penetrate bone...
December 7, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28113095/predictive-value-of-general-movement-assessment-for-preterm-infants-development-at-2-years-implementation-in-clinical-routine-in-a-non-academic-setting
#19
Freia De Bock, Heike Will, Ulrike Behrenbeck, Marc N Jarczok, Mijna Hadders-Algra, Heike Philippi
BACKGROUND: General movements (GM) are used in academic settings to predict developmental outcome in infants born preterm. However, little is known about the implementation and predictive value of GM in non-academic settings. AIMS: The aim of this study is twofold: To document the implementation of GM assessment (GMA) in a non-academic setting and to assess its predictive value in infants born preterm. METHODS AND PROCEDURES: We documented the process of implementing GMA in a non-academic outpatient clinic...
January 20, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28110054/slicing-silicone-neonatal-vascular-catheter-tips-improves-colonization-detection-by-the-roll-plate-technique
#20
María Guembe, Pablo Martín-Rabadán, Raquel Cruces, María Jesús Pérez Granda, Emilio Bouza
OBJECTIVE: Silicone neonatal peripherally inserted central catheters (SN-PICCs) are a common cause of catheter-related bloodstream infection (C-RBSI) in neonates. Our objective was to compare the yield of traditional roll-plate technique (TRP), roll-plate after slicing (RPS), and sonication after slicing (SS) for the detection of colonization and C-RBSI in SN-PICCs. METHODS: We prospectively cultured tips from SN-PICCs withdrawn from pediatric patients admitted to our institution with suspicion of infection...
January 18, 2017: Clinical Microbiology and Infection
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