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https://www.readbyqxmd.com/read/28230569/procedure-oriented-torsional-anatomy-of-the-hand-for-spasticity-injection
#1
Joslyn John, John Cianca, Faye Chiou-Tan, Sindhu Pandit, Erin Furr-Stimming, Katherine H Taber
OBJECTIVES: To provide musculoskeletal ultrasound (MSKUS) images of hand anatomy in the position of hemiparetic flexion as a reference for spasticity injections. After a stroke, spasticity can result in anatomic distortion of the hand. Spasticity may require treatment with botulinum toxin or phenol injections. Anatomic distortion may decrease the accuracy of injections. Standard anatomic references are of limited utility because they are not in this spastic hemiparetic position. There presently is no anatomic reference in the literature for these spastic postures...
February 23, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28227203/real-time-ultrasound-based-control-of-a-virtual-hand-by-a-trans-radial-amputee
#2
Clayton A Baker, Nima Akhlaghi, Huzefa Rangwala, Jana Kosecka, Siddhartha Sikdar, Clayton A Baker, Nima Akhlaghi, Huzefa Rangwala, Jana Kosecka, Siddhartha Sikdar, Nima Akhlaghi, Siddhartha Sikdar, Clayton A Baker, Jana Kosecka, Huzefa Rangwala
Advancements in multiarticulate upper-limb prosthetics have outpaced the development of intuitive, non-invasive control mechanisms for implementing them. Surface electromyography is currently the most popular non-invasive control method, but presents a number of drawbacks including poor deep-muscle specificity. Previous research established the viability of ultrasound imaging as an alternative means of decoding movement intent, and demonstrated the ability to distinguish between complex grasps in able-bodied subjects via imaging of the anterior forearm musculature...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217059/ultrasound-guided-axillary-brachial-plexus-block-versus-local-infiltration-anesthesia-for-arteriovenous-fistula-creation-at-the-forearm-for-hemodialysis-in-patients-with-chronic-renal-failure
#3
W H Nofal, S M El Fawal, A A Shoukry, Eas Sabek, Wfa Malak
BACKGROUND: The primary failure rate for arteriovenous fistula (AVF) creation under local anesthesia for hemodialysis is about 30%. Axillary brachial plexus block (BPB) may improve blood flow through blood vessels used in fistula creation; it may improve the AVF blood flow and thus may reduce the primary failure rate after 3 months. METHODS: Hundred and forty patients with chronic renal failure scheduled for AVF creation for hemodialysis were divided into two equal groups; Group 1 (AxBP-G) received ultrasound (US) guided axillary BPB, and Group 2 (LI-G) received local infiltration...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216229/trans-ulnar-catheterization-and-coronary-interventions-from-technique-to-outcomes
#4
REVIEW
Sudhakar Sattur, Maninder Singh, Edo Kaluski
The ulnar artery is similar in size to the radial artery, however it is more difficult to palpate and access. For those physicians who mastered trans-ulnar access (TUA) this access site serves as an alternative to trans radial access (TRA) when the radial artery access is rendered suboptimal (by palpation, ultrasound examination or previous procedural records) or when encountering TRA difficulties or failure. The manuscript describes the anatomy, suggested technique, procedural success and complications associated with TUA...
February 1, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28215930/ultrasound-guided-resuscitative-endovascular-balloon-occlusion-of-the-aorta-in-the-resuscitation-area
#5
Takayuki Ogura, Alan Kawarai Lefor, Mitsunobu Nakamura, Kenji Fujizuka, Kousuke Shiroto, Minoru Nakano
BACKGROUND: In trauma resuscitation with resuscitative endovascular balloon occlusion of the aorta (REBOA), urgent and accurate placement of the catheter in the resuscitation area without fluoroscopy can shorten the time from admission to REBOA, allowing rapid, temporary control of bleeding. DISCUSSION: The experience-based protocol in our center for ultrasound-guided REBOA in the resuscitation area without fluoroscopy is as follows: the femoral artery is punctured and a guidewire inserted; sonography is used to verify that the guidewire is in the abdominal aorta; the position of the balloon is confirmed with ultrasound after estimating the distance to the clavicle, and the pressure in the radial artery and sheath is used to monitor correct positioning; connect the pressure transducer to the catheter sheath for continuous monitoring of the blood pressure in the sheath, and inflate the balloon until the blood pressure tracing at the sheath has disappeared; check the pulse in the left radial artery, and withdraw the catheter slightly if the pulse in the radial artery is not palpable or is decreased (if this pulse is not palpable or decreased, the balloon is in the aortic arch)...
February 17, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28212155/molecular-markers-in-lung-cancer-role-of-ebus
#6
Semra Bilaçeroğlu
PURPOSE OF REVIEW: As demonstrated by the recent therapeutic advances in nonsmall cell lung cancer (NSCLC), a personalized approach can considerably reduce its mortality. RECENT FINDINGS: Molecular tests identifying genetic mutations in NSCLC have led to a shift towards more effective and personalized therapies targeted to these alterations. Adequate tissue is required for diagnosing, subcharacterizing, and genotyping NSCLC by morphological, immunohistochemical, and molecular techniques...
February 16, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28183585/oblique-approach-for-ultrasound-guided-radial-artery-catheterization-vs-transverse-and-longitudinal-approaches-a-randomized-trial
#7
Usama Elsayed Mohammed Abdalla, Alaa Elmaadawey, AlRefaey Kandeel
STUDY OBJECTIVE: To investigate the value of using a new technique for ultrasound-guided radial artery catheterization; oblique approach; vs transverse and longitudinal views are the traditionally used approaches aiming to combine benefits and avoid drawbacks of aforementioned approaches. DESIGN: A prospective randomized nonblinded study. SETTING: Gastroenterology Center, Mansoura University, Egypt from February 2015 to August 2015. PATIENTS: One hundred twenty-six surgical and intensive care unit patients indicated for arterial catheterization...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28177181/radial-endobronchial-ultrasound-for-the-diagnosis-of-peripheral-pulmonary-lesions-a-systematic-review-and-meta-analysis
#8
REVIEW
Muhammad S Ali, William Trick, Benjamin I Mba, Divyanshu Mohananey, Jaskaran Sethi, Ali I Musani
Tissue diagnosis of peripheral pulmonary lesions (PPLs) can be challenging. In the past, flexible bronchoscopy was commonly performed for this purpose but its diagnostic yield is suboptimal. This has led to the development of new bronchoscopic modalities such as radial endobronchial ultrasound (R-EBUS), electromagnetic navigation bronchoscopy (ENB) and virtual bronchoscopy (VB). We performed this meta-analysis using data from previously published R-EBUS studies, to determine its diagnostic yield and other performance characteristics...
February 8, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28169912/radial-probe-ultrasound-guided-cryobiopsy
#9
Ilya G Berim, Ali I Saeed, Ahmed Awab, Adam Highley, Agnes Colanta, Fawad Chaudry
Fluoroscopy-guided transbronchial forceps biopsy has a low diagnostic yield in patients with radiographic suspicion of interstitial lung disease. Cryobiopsy has a higher diagnostic yield likely due to preserved lung architecture and larger biopsies; however, there is an increased risk of major airway bleeding and pneumothorax. Simultaneous use of endobronchial balloon blocker allows for containment of bleeding after cryobiopsy to the affected lobe. In the current article we describe use of radial ultrasound in identification of a target lung parenchyma without a major blood vessel adjacent to distal bronchi...
February 6, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28164311/flow-and-diameter-changes-of-forearm-arteries-during-temporary-unilateral-reciprocal-occlusion-a-prospective-observational-study
#10
Hatice Kaplanoglu, Osman Beton
PURPOSE: Transradial and transulnar artery approaches are commonly used for percutaneous interventions, with considerably low risk of developing hand ischemia, for reasons that have not been fully understood. The aim of this study was to evaluate the changes in the diameter, peak systolic flow velocity (PSV), and volume flow (VF) of the radial (RA) and ulnar artery (UA) during unilateral reciprocal temporary occlusion. METHODS: A total of 204 extremity arteries of 102 consecutive patients were evaluated using Doppler ultrasonography...
February 6, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28157792/ultrasound-guided-costoclavicular-brachial-plexus-block-sonoanatomy-technique-and-block-dynamics
#11
Jia Wei Li, Banchobporn Songthamwat, Winnie Samy, Xavier Sala-Blanch, Manoj Kumar Karmakar
BACKGROUND AND OBJECTIVES: This study aimed to describe in detail the relevant sonoanatomy, technique, and block dynamics of an ultrasound-guided costoclavicular brachial plexus block (BPB). METHODS: Thirty patients scheduled for hand or forearm surgery under a BPB underwent transverse ultrasound imaging of the medial infraclavicular fossa to identify the cords of the brachial plexus at the costoclavicular space (CCS). An ultrasound-guided BPB was then performed at the CCS with 20 mL of 0...
March 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28154165/heritability-of-vascular-structure-and-function-a-parent-child-study
#12
Justin R Ryder, Nathan D Pankratz, Donald R Dengel, James S Pankow, David R Jacobs, Alan R Sinaiko, Vasu Gooty, Julia Steinberger
BACKGROUND: Understanding the heritable contribution of vascular measures, from parent to offspring, may aid in risk stratification and atherosclerosis prevention efforts. We hypothesized that measures of vascular structure and function would be heritable in this cohort of parents and their adolescent offspring. METHODS AND RESULTS: High-resolution ultrasound scans of the brachial and carotid arteries were obtained in parents (n=558) and their offspring (n=369)...
February 2, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28149581/recent-advances-in-diagnostic-bronchoscopy
#13
REVIEW
Philip G Ong, Labib G Debiane, Roberto F Casal
The field of diagnostic bronchoscopy has been revolutionized in the last decade primarily with the advent of endobronchial ultrasound (EBUS) but also with the addition of multiple different techniques for "guided-bronchoscopy". These advances have had a substantial impact in the management of lung cancer with bronchoscopy now providing both diagnosis and mediastinal staging in a single procedure. EBUS has, in fact, become the first choice for staging of the mediastinum over cervical mediastinoscopy (CM). Although EBUS is now a well-established technique, there are continuous efforts from the scientific community to improve its diagnostic performance, and these will be reviewed in this manuscript...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28149139/can-we-perform-distal-nerve-block-instead-of-brachial-plexus-nerve-block-under-ultrasound-guidance-for-hand-surgery
#14
Ilker Ince, Mehmet Aksoy, Mine Celik
OBJECTIVE: Distal nerve blocks are used in the event of unsuccessful blocks as rescue techniques. The primary purpose of this study was to determine the sufficiency for anesthesia of distal nerve block without the need for deep sedation or general anesthesia. The secondary purpose was to compare block performance times, block onset times, and patient and surgeon satisfaction. MATERIALS AND METHODS: Patients who underwent hand surgery associated with the innervation area of the radial and median nerves were included in the study...
October 2016: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28147588/porosity-predicted-from-ultrasound-backscatter-using-multivariate-analysis-can-improve-accuracy-of-cortical-bone-thickness-assessment
#15
Chibuzor T M Eneh, Isaac O Afara, Markus K H Malo, Jukka S Jurvelin, Juha Töyräs
A rapidly growing area of interest in quantitative ultrasound assessment of bone is to determine cortical bone porosity from ultrasound backscatter. Current backscatter analyses are based on numerical simulations, while there are no published reports of successful experimental measurements. In this study, multivariate analysis is applied to ultrasound reflections and backscatter to predict cortical bone porosity. The porosity is then applied to estimate cortical bone radial speed of sound (SOS) and thickness using ultrasound backscatter signals obtained at 2...
January 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28144062/role-of-radial-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-in-the-diagnosis-of-pulmonary-nodules-case-report-and-literature-review
#16
Sahajal Dhooria, Inderpaul Singh Sehgal, Nalini Gupta, Ashutosh Nath Aggarwal, Digambar Behera, Ritesh Agarwal
The diagnosis of pulmonary nodules can be made using several methods including computed tomography (CT)-guided fine-needle aspiration (FNA), radial endobronchial ultrasound (EBUS)-guided sampling techniques (transbronchial lung biopsy [TBLB], transbronchial brush, bronchoalveolar lavage, or transbronchial needle aspiration [TBNA]), or occasionally with convex probe (CP) EBUS-TBNA. While CT-guided FNA is associated with a high (25%) rate of pneumothorax, the CP-EBUS cannot reach lesions beyond the interlobar region...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28144060/radial-endobronchial-ultrasound-for-the-diagnosis-of-bronchoscopically-invisible-lesions-first-case-series-from-india
#17
Kedar Ravi Hibare, Rajiv Goyal, Chetan Nemani, Rao Avinash, Bajpai Ram, Batra Ullas
BACKGROUND: A peripheral, bronchoscopically invisible pulmonary lesion is a diagnostic challenge. Transthoracic needle aspiration has long been the investigation of choice but runs the risk of pneumothorax (up to 44%). Newer technologies like radial endobronchial ultrasound (R-EBUS) offer a safer approach. We present our results of R-EBUS in the diagnosis of bronchoscopically invisible lesions. This is the first large case series from India. AIMS: (1) To determine the yield of R-EBUS for the diagnosis of bronchoscopically invisible lesions...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28132132/impaired-vascular-function-in-sarcoidosis-patients
#18
I Tuleta, D Skowasch, L Biener, C Pizarro, R Schueler, G Nickenig, N Schahab, C Schaefer, S Pingel
A common feature of sarcoidosis and atherosclerosis is a chronic systemic inflammatory reaction. Our hypothesis was that sarcoidosis may negatively influence the vessel status. We addressed the issue by examining preatherosclerotic vascular alternations using an ultrasound-based speckle-tracking method in 72 sarcoidosis patients and 15 matched controls. To find potential factors which may have a deleterious influence on arterial performance, different subgroups of sarcoidosis, such as sarcoidosis with or without cortisone therapy, pulmonary sarcoidosis in early and advanced stages, pulmonary sarcoidosis alone or combined with extrapulmonary sarcoidosis, and sarcoidosis with or without elevated blood levels of angiotensin converting enzyme (ACE)/soluble interleukin 2 receptor (sIL-2R) were investigated...
January 29, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28113578/2d-versus-3d-cross-correlation-based-radial-and-circumferential-strain-estimation-using-multiplane-2d-ultrafast-ultrasound-in-a-3d-atherosclerotic-carotid-artery-model
#19
Stein Fekkes, Abigail E S Swillens, Hendrik H G Hansen, Anne E C M Saris, Maartje M Nillesen, Francesco Iannaccone, Patrick Segers, Chris L de Korte
Three-dimensional strain estimation might improve the detection and localization of high strain regions in the carotid artery for identification of vulnerable plaques. This study compares 2D vs. 3D displacement estimation in terms of radial and circumferential strain using simulated ultrasound images of a patient specific 3D atherosclerotic carotid artery model at the bifurcation embedded in surrounding tissue generated with ABAQUS software. Global longitudinal motion was superimposed to the model based on literature data...
August 25, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28104550/robust-estimation-of-carotid-artery-wall-motion-using-the-elasticity-based-state-space-approach
#20
Zhifan Gao, Huahua Xiong, Xin Liu, Heye Zhang, Dhanjoo Ghista, Wanqing Wu, Shuo Li
The dynamics of the carotid artery wall has been recognized as a valuable indicator to evaluate the status of atherosclerotic disease in the preclinical stage. However, it is still a challenge to accurately measure this dynamics from ultrasound images. This paper aims at developing an elasticity-based state-space approach for accurately measuring the two-dimensional motion of the carotid artery wall from the ultrasound imaging sequences. In our approach, we have employed a linear elasticity model of the carotid artery wall, and converted it into the state space equation...
January 10, 2017: Medical Image Analysis
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