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ultrasound needle guidance

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https://www.readbyqxmd.com/read/28420906/comparison-of-ultrasound-and-ultrasound-plus-nerve-stimulator-guidance-axillary-plexus-block
#1
Gokhan Demirelli, Semih Baskan, Isil Karabeyoglu, Ismail Aytac, Dilsen Hatice Ornek, Alper Erdogmus, Mustafa Baydar
OBJECTIVE: To evaluate the characteristics of axillary plexus blockade applied using ultrasound only and using ultrasound together with nerve stimulator in patients undergoing planned forearm, wrist or hand surgery. METHODS: This randomised, prospective, double-blinded, single-centre study was conducted at Ankara Numune Training and Research Hospital, Ankara, Turkey, from November 2014 to August 2015, and comprised patients undergoing forearm, wrist or hand surgery...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28418995/kidney-biopsy-yield-an-examination-of-influencing-factors
#2
Miroslav Sekulic, Gretchen S Crary
Kidney biopsies are conducted under varying scenarios, presenting variables that could potentially influence yield and adequacy of tissue collected. We retrospectively reviewed 636 native and allograft kidney biopsies, and compared tissue collected between differing practitioners performing the biopsy (nephrologists or radiologists), imaging modalities for guidance (ultrasound or computed tomography), gauge needle used (18 or 16 G), and between on-site evaluators of biopsy adequacy conducted at the time of biopsy (general pathologists, renal pathologists, nephrologists)...
April 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28416391/ultrasound-guided-out-of-plane-versus-in-plane-transpectoral-left-axillary-vein-cannulation
#3
Madan Mohan Maddali, Nishant Ram Arora, Nilay Chatterjee
OBJECTIVE: The primary objective was to compare the frequency of first-attempt successful axillary vein cannulation by the Seldinger technique using out-of-plane ultrasound guidance versus in-plane imaging. Between the two ultrasound imaging planes, this study also compared the number of attempts that were necessary for the cannulation of the left axillary vein along with the number of needle redirections that had to be done for final cannulation of the vein. Incidence of complications and the number of times the procedure was abandoned also were compared between the two imaging planes...
February 15, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28414927/integration-of-free-hand-3d-ultrasound-and-mobile-c-arm-cone-beam-ct-feasibility-and-characterization-for-real-time-guidance-of-needle-insertion
#4
E Marinetto, A Uneri, T De Silva, S Reaungamornrat, W Zbijewski, A Sisniega, S Vogt, G Kleinszig, J Pascau, J H Siewerdsen
This work presents development of an integrated ultrasound (US)-cone-beam CT (CBCT) system for image-guided needle interventions, combining a low-cost ultrasound system (Interson VC 7.5MHz, Pleasanton, CA) with a mobile C-arm for fluoroscopy and CBCT via use of a surgical tracker. Imaging performance of the ultrasound system was characterized in terms of depth-dependent contrast-to-noise ratio (CNR) and spatial resolution. US-CBCT system was evaluated in phantom studies simulating three needle-based procedures: drug delivery, tumor ablation, and lumbar puncture...
April 3, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28405038/incidence-of-posterior-wall-penetration-during-internal-jugular-vein-cannulation-a-comparison-of-two-techniques-using-real-time-ultrasound
#5
Shrikanth Srinivasan, Deepak Govil, Sachin Gupta, Sweta Patel, K N Jagadeesh, Deeksha Singh Tomar
BACKGROUND AND AIMS: The true incidence of penetration of the posterior wall (through-and-through puncture) of the internal jugular vein (IJV) during cannulation is unknown. This may have implications if there is hematoma formation, penetration and/or inadvertent cannulation of an underlying carotid artery. This study compared the incidence of posterior wall puncture during IJV cannulation using ultrasound guidance versus traditional landmarks-guided technique. METHODS: One hundred and seventy adult patients admitted to a gastro-liver Intensive Care Unit who required central venous lines were randomly divided into Group A: IJV cannulation using anatomical landmark-guided technique and Group B: IJV cannulation using real-time ultrasound guidance...
March 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28377202/ureteroscopy-assisted-percutaneous-kidney-access-made-easy-first-clinical-experience-with-a-novel-navigation-system-using-electromagnetic-guidance-ideal-stage-1
#6
Estevao Lima, Pedro L Rodrigues, Paulo Mota, Nuno Carvalho, Emanuel Dias, Jorge Correia-Pinto, Riccardo Autorino, João L Vilaça
BACKGROUND: Puncture of the renal collecting system represents a challenging step in percutaneous nephrolithotomy (PCNL). Limitations related to the use of standard fluoroscopic-based and ultrasound-based maneuvers have been recognized. OBJECTIVES: To describe the technique and early clinical outcomes of a novel navigation system for percutaneous kidney access. DESIGN, SETTING, AND PARTICIPANTS: This was a proof-of-concept study (IDEAL phase 1) conducted at a single academic center...
April 1, 2017: European Urology
https://www.readbyqxmd.com/read/28362032/randomized-comparative-study-of-the-effectiveness-of-three-different-techniques-of-interscalene-brachial-plexus-block-using-0-5-ropivacaine-for-shoulder-arthroscopy
#7
Michał Kolny, Michał J Stasiowski, Marek Zuber, Radosław Marciniak, Ewa Chabierska, Aleksandra Pluta, Przemysław Jałowiecki, Tomasz Byrczek
BACKGROUND: Interscalene brachial plexus block is an effective regional anesthesia technique for shoulder surgeries. The superiority of the popular ultrasound-guided blocks over peripheral nerve stimulator-confirmed blocks remains unclear. In this study the efficacy of these different block techniques was compared. METHODS: This prospective, randomized, clinical study included 109 patients (ASA grades I-III) who receive 20 mL 0.5% ropivacaine with ultrasound-guided blocks (U group), peripheral nerve stimulator-confirmed blocks (N group), or ultrasound-guided and peripheral nerve stimulator-confirmed blocks (dual guidance; NU group) for elective shoulder arthroscopy...
2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28357575/ultrasound-guided-biopsies-of-bone-lesions-without-cortical-disruption-using-fusion-imaging-and-needle-tracking-proof-of-concept
#8
Julien Garnon, Guillaume Koch, Georgia Tsoumakidou, Jean Caudrelier, Basavaraj Chari, Roberto Luigi Cazzato, Afshin Gangi
OBJECTIVE: To assess the technical feasibility and safety of combined fusion imaging and needle tracking under ultrasound guidance to target bone lesions without cortical disruption. MATERIALS AND METHODS: Between January 2016 and March 2016, seven patients underwent US-guided biopsy of bone lesions without cortical disruption. Targeted bone lesions were measuring more than 1.5 cm with a thin cortex, a trans-osseous pathway not exceeding 2 cm and without any adjacent vulnerable structures...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28345418/a-coaxial-dual-element-focused-ultrasound-probe-for-guidance-of-epidural-catheterization
#9
Guo-Chung Dong, Li-Chen Chiu, Chien-Kun Ting, Jia-Ruei Hsu, Chih-Chung Huang, Yin Chang, Gin-Shin Chen
Ultrasound guidance for epidural block has improved clinical blind-trial problems but the design of present ultrasonic probes poses operating difficulty of ultrasound-guided catheterization, increasing the failure rate. The purpose of this study was to develop a novel ultrasonic probe to avoid needle contact with vertebral bone during epidural catheterization. The probe has a central circular passage for needle insertion. Two focused annular transducers are deployed around the passage for on-axis guidance. A 17-gauge insulated Tuohy needle containing the self-developed fiber-optic-modified stylet was inserted into the back of the anesthetized pig, in the lumbar region under the guidance of our ultrasonic probe...
March 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28342919/radiation-exposure-to-the-surgeon-during-ultrasound-assisted-transforaminal-percutaneous-endoscopic-lumbar-discectomy-a-prospective-study
#10
Ruihui Wu, Xuqiang Liao, Hong Xia
PURPOSE: To determine the radiation dose to the surgeon during ultrasound-assisted transforaminal percutaneous endoscopic lumbar discectomy (transforaminal PELD) for lumbar disc herniation, and investigate whether the usage of ultrasonography could reduce the radiation exposure to surgeon. METHODS: The stages of needle insertion and foraminal plasty for transforaminal PELD were performed under ultrasound guidance and confirmed by fluoroscopy according to the standard technique by two spinal surgeons separately in 25 transforaminal PELDs (25 levels)...
March 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28332158/first-clinical-use-of-the-echotrack-guidance-approach-for-radiofrequency-ablation-of-thyroid-gland-nodules
#11
Alfred Michael Franz, Alexander Seitel, Nasrin Bopp, Christian Erbelding, Dominique Cheray, Stefan Delorme, Frank Grünwald, Hüdayi Korkusuz, Lena Maier-Hein
PURPOSE: Percutaneous radiofrequency ablation (RFA) of thyroid nodules is an alternative to surgical resection that offers the benefits of minimal scars for the patient, lower complication rates, and shorter treatment times. Ultrasound (US) is the preferred modality for guiding these procedures. The needle is usually kept within the US scanning plane to ensure needle visibility. However, this restricts flexibility in both transducer and needle movement and renders the procedure difficult, especially for inexperienced users...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28321422/autologous-tenocyte-injection-for-the-treatment-of-chronic-recalcitrant-gluteal-tendinopathy-a-prospective-pilot-study
#12
Thomas A Bucher, Jay R Ebert, Anne Smith, William Breidahl, Michael Fallon, Tao Wang, Ming-Hao Zheng, Gregory C Janes
BACKGROUND: Gluteal tendinopathy is a common cause of lateral hip pain, and existing conservative treatment modalities demonstrate high symptom recurrence rates. Autologous tenocyte injection (ATI) is a promising cell therapy that may be useful for the treatment of gluteal tendinopathy. PURPOSE: To investigate the safety and effectiveness of ATI, specifically in patients with chronic recalcitrant gluteal tendinopathy. STUDY DESIGN: Case series; Level of evidence, 4...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28319265/derivation-of-a-performance-checklist-for-ultrasound-guided-arthrocentesis-using-the-modified-delphi-method
#13
Derek Kunz, Manoj Pariyadath, Mary Wittler, Kim Askew, David Manthey, Nicholas Hartman
OBJECTIVES: Arthrocentesis is an important skill for physicians in multiple specialties. Recent studies indicate a superior safety and performance profile for this procedure using ultrasound guidance for needle placement, and improving quality of care requires a valid measurement of competency using this modality. METHODS: We endeavored to create a validated tool to assess the performance of this procedure using the modified Delphi technique and experts in multiple disciplines across the United States...
March 20, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28298941/in-vivo-feasibility-of-real-time-mr-us-fusion-imaging-lumbar-facet-joint-injections
#14
Riccardo Sartoris, Davide Orlandi, Angelo Corazza, Luca Maria Sconfienza, Alice Arcidiacono, Silvia Perugin Bernardi, Simone Schiaffino, Giovanni Turtulici, Pietro Caruso, Enzo Silvestri
OBJECTIVES: Traditionally, facet joint injections (FJI) are performed under fluoroscopic or computed tomography (CT) guidance, mainly due to the deep anatomical location and the presence of bony landmarks. Fusion imaging technology, which couples the ultrasound scan with the corresponding CT or magnetic resonance (MR) image obtained from the diagnostic examination and reformatted in real time according to the ultrasound scanning plane, allows to combine the panoramic view and the elevated anatomical detail of MR or CT with the ease of use of ultrasound without patient exposure to ionizing radiation...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28295403/toward-a-3d-transrectal-ultrasound-system-for-verification-of-needle-placement-during-high-dose-rate-interstitial-gynecologic-brachytherapy
#15
Jessica Robin Rodgers, Kathleen Surry, Eric Leung, David D'Souza, Aaron Fenster
PURPOSE: Treatment for gynecologic cancers, such as cervical, recurrent endometrial, and vaginal malignancies, commonly includes external-beam radiation and brachytherapy. In high-dose-rate (HDR) interstitial gynecologic brachytherapy, radiation treatment is delivered via hollow needles that are typically inserted through a template on the perineum with a cylinder placed in the vagina for stability. Despite the need for precise needle placement to minimize complications and provide optimal treatment, there is no standard intra-operative image-guidance for this procedure...
March 15, 2017: Medical Physics
https://www.readbyqxmd.com/read/28287519/endobronchial-ultrasound-guided-intratumoral-injection-of-cisplatin-for-the-treatment-of-isolated-mediastinal-recurrence-of-lung-cancer
#16
Hiren J Mehta, Michael A Jantz
Isolated hilar and mediastinal recurrence (IMHR) following external beam radiation therapy (EBRT) in patients with lung cancer is common. These patients do not have many treatment options and are usually offered palliative chemotherapy or best supportive care. Endobronchial ultrasound (EBUS)-guided intratumoral injection of cisplatin (ITC) is a novel approach for these patients. The procedure is performed under conscious sedation. The lesion is located with a bronchoscopy using EBUS, and a 22-gauge EBUS needle is advanced through the working channel of the scope and locked in position...
February 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28268347/temperature-monitoring-during-radiofrequency-ablation-of-liver-in-vivo-trials
#17
P Saccomandi, G Frauenfelder, C Massaroni, M A Caponera, A Polimadei, F Taffoni, F M Di Matteo, G Costamagna, F Giurazza, E Schena
Radiofrequency ablation (RFA) is a minimally invasive procedure used to treat tumors by means of hyperthermia, mostly through percutaneous approach. The tissue temperature plays a pivotal role in the achievement of the target volume heating, while sparing the surrounding healthy tissue from thermal damage. Several techniques for thermometry during RFA are investigated, most of them based on the use of single-point measurement system (e.g., thermocouples). The measurement of temperature map is crucial for the real-time control and fine adjustment of the treatment settings, to optimize the shape and size of the ablated volume...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263243/use-of-3-dimensional-printing-to-create-patient-specific-thoracic-spine-models-as-task-trainers
#18
Jelliffe Jeganathan, Yanick Baribeau, Jeffrey Bortman, Feroze Mahmood, Marc Shnider, Muneeb Ahmed, Azad Mashari, Rabia Amir, Yannis Amador, Robina Matyal
BACKGROUND AND OBJECTIVES: Thoracic epidural anesthesia is a technically challenging procedure with a high failure rate of 24% to 32% nationwide. Residents in anesthesiology have limited opportunities to practice this technique adequately, and there are no training tools available for this purpose. Our objective was to build a low-cost patient-specific thoracic epidural training model. METHODS: We obtained thoracic computed tomography scan data from patients with normal and kyphotic spine...
March 3, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28263238/evaluation-of-effects-of-radiofrequency-ablation-of-ex-vivo-liver-using-the-1-fr-wire-electrode
#19
Tarun Rustagi, Ferga C Gleeson, Barham K Abu Dayyeh, Mark D Topazian, Michael J Levy
BACKGROUND AND STUDY AIMS: Percutaneous and intraoperative radiofrequency ablation (RFA) has become a valued tool in the management of primary and secondary hepatic lesions. A recent FDA-approved endoscopic ultrasound (EUS)-guided RFA probe now offers promise to help manage such lesions. However, there are no data to determine the ideal power setting and duration of ablation needed to effectively treat hepatic masses. The aim of the study was to evaluate the macroscopic zone of hepatic injury for EUS-RFA using a variety of settings within a fresh porcine hepatic specimen...
March 3, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28258634/an-easy-to-make-low-cost-ultrasound-phantom-for-simulation-training-in-abscess-identification-and-aspiration
#20
Juliana Wilson, Lorraine Ng, Vaughn Browne, Resa E Lewiss
We have created a low-cost and easy to make phantom for abscess identification using point-of-care ultrasound. The phantom also allows needle tracking and abscess aspiration using ultrasound guidance.
March 4, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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